Comet C/2018 Y1 (Iwamoto)


IIIYYYYMnL YYYY MM DD.DD eM/mm.m:r AAA.ATF/xxxx /dd.ddnDC /t.ttmANG ICQ XX*OBSxxf InT APERTURcamchip SFW C ## u.uu xx.x PIXELSIZE
   2018Y1  2019 04 24.89  k 15.4 AQ 25.0T 7a960   0.5               ICQ XX MAS01I     C 0.5 mG2x E2V KPR 5 U8* 0.0       1.5s 1.5 Martin Masek; Comet Alt.:15.5 Calculated mags:15.5,15.4,15.5,15.4
2018Y1 2019 04 24.89 V 14.4 AQ 25.0T 7a960 1 ICQ XX MAS01I C 1 mG2x E2V KPR 5 U8* 0.1 1.5s 1.5 Martin Masek; Comet Alt.:15.1 Calculated mags:14.3,14.4,14.4
2018Y1 2019 04 24.85 S 13.0 HS 30.0T10 80 2.5 3 ICQ XX LEH Martin Lehký
2018Y1 2019 04 21.84 Z 11.7 AQ 20.0L 4B041 6.8 LEHaaI C 6.8 mPDS CAC AIT 5 1.2s 1.2 Thomas Lehmann, mlim=19.3, DSLR green
2018Y1 2019 04 21.84 Z 12.3 AQ 10.0R 6A622 3.7 FRIaaI C 3.7 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche, mlim=18.5, DSLR green
2018Y1 2019 04 19.82 C 15.3 AQ 13.0L 5A350 0.4 ICQ XX HADaaI C 0.4 mZ12 MT9 KPR 5 U9* 0.0 1.2s 1.2 Jakub Hadač; Comet Alt.:24.6 Calculated mags:15.2,15.2,15.3,15.3,15.3,15.3
2018Y1 2019 04 15.84 Z 11.7 AQ 20.0L 4B886 6.8 LEHaaI C 6.8 mPDS CAC AIT 5 1.2s 1.2 Thomas Lehmann, mlim=19.2, DSLR green, moon 83% dist 85 deg
2018Y1 2019 04 15.84 Z 12.1 AQ 10.0R 6A742 4.8 FRIaaI C 4.8 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 04 08.83 Z 11.3 AQ 20.0L 4A801 6.5 LEHaaI C 6.5 mPDS CAC AIT 5 1.2s 1.2 Thomas Lehmann
2018Y1 2019 04 07.84 S 12.2 TK 23.5T10 181 2.5 1 SCHaa Gerhard Scheerle
2018Y1 2019 04 06.83 Z 11.0 AQ 10.0R 6A924 9.5 FRIaaI C 9.5 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 04 06.80 C 12.9 AQ 13.0L 5A320 1.6 ICQ XX HADaaI C 1.6 mZ12 MT9 KPR 5 U9* 0.0 1.2s 1.2 Jakub Hadač; Comet Alt.:38.3 Calculated mags:12.9,12.9,12.9,13.0,12.9
2018Y1 2019 04 03.16 Z 10.5 AQ 10.6R 5a180 10 ICQ XX RAMaa C sSTL KA1 5 U3 0.1 3.5s 3.5 Raymond Ramlow
2018Y1 2019 04 03.14 Z 10.8 AQ 10.6R 5a480 11 LEHaaI C11 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 04 02.87 S 9.8 TK 20.3T10 77 6 2/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 04 01.86 S 10.6 TI 53.1L 111 3 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.2 mag/arcsec^2, Swanfilter wirkte: Durchmesser 3.2`
2018Y1 2019 04 01.85 V 10.9 AQ 2.4A 6A830 8.7 ICQ XX PAR03I C 8.71mCDS CAC MIm 5 U9 0.0 8.7s 8.7 Mieczyslaw Leszek Paradowski, Piotrowice Wielkie; Software: IRIS; temperature 0 C
2018Y1 2019 04 01.83 V 11.0 AQ 3.4A 4A800 7.9 ICQ XX PAR03I C 7.94mCDS CAC MIm 5 U9 0.0 7.9s 7.9 Mieczyslaw Leszek Paradowski, Piotrowice Wielkie; Software: IRIS; temperature 0 C
2018Y1 2019 04 01.82 Z 10.6 AQ 10.0R 6B405 13 FRIaaI C13 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 04 01.82 S 10.4 TK 25.4L 5 64 3 2/ ICQ XX MEY Maik Meyer
2018Y1 2019 04 01.81 M 10.5 TT 10.0B 4 25 3.5 3 ICQ XX LEH Martin Lehký
2018Y1 2019 04 01.78 C 12.3 AQ 15.0L 4a330 2.7 ICQ XX MAS01I C 2.7 mG2x K6M KPR 0 U9* 0.0 5.4s 5.4 Martin Masek; Comet Alt.:43.0 Calculated mags:12.3,12.4,12.3,12.3,12.4,12.3,12.3
2018Y1 2019 03 31.84 !S 10.8 TI 53.1L 111 3 2 ICQ XX HAR11 Christian Harder, Westerholz/ Germany; SQM-L: 20.3 mag/arcsec^2, Swanfilter wirkte
2018Y1 2019 03 30.80 M 10.5 TT 10.0B 4 25 3.5 3 ICQ XX LEH Martin Lehký
2018Y1 2019 03 29.85 S 12.2 HS 32.0L 5 80 2.5 PIL01 Uwe Pilz
2018Y1 2019 03 29.83 S 10.2 TK 25.4L 5 64 2.8 2/ ICQ XX MEY Maik Meyer
2018Y1 2019 03 29.83 S 10.9 TI 53.0L 86 3 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.3 mag/arcsec^2, Swanfilter wirkte: Durchmesser 3.5`
2018Y1 2019 03 29.82 Z 10.5 AQ 7.5A 4B882 11 0.11 79 LEHaaI C11 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 03 29.81 Z 10.4 AQ 10.0R 6B284 14 FRIaaI C14 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 03 29.81 S 11.0 TK 23.5T10 181 3.5 2 SCHaa Gerhard Scheerle
2018Y1 2019 03 29.81 C 12.1 AQ 13.0L 5a900 2.8 ICQ XX HADaaI C 2.8 mZ12 MT9 KPR 5 U9* 0.0 1.2s 1.2 Jakub Hadač; Comet Alt.:40.7 Calculated mags:12.0,12.1,12.0,12.1,12.1,12.1
2018Y1 2019 03 29.78 M 10.3 TT 10.0B 4 25 4 3 ICQ XX LEH Martin Lehký
2018Y1 2019 03 29.11 Z 10.3 AQ 10.6R 5a480 14 LEHaaI C14 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 03 28.88 S 10.2 GB 10.0B 20 4 3 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.6, Reference stars: 98/104/108, 1/8 Sc, dew, calm, +6C.
2018Y1 2019 03 28.85 S 10.0 TT 10.0B 25 5 2 ICQ XX GUZ Piotr Guzik
2018Y1 2019 03 28.81 S 11.5 TK 44.0L 5 100 0.8 4 ICQXXX HAS02 Werner Hasubick
2018Y1 2019 03 28.78 M 10.2 TT 10.0B 4 25 4.5 3 ICQ XX LEH Martin Lehký
2018Y1 2019 03 27.85 S 10.1 TK 18.5L 5 73 3.5 2 ICQ XX KWI Maciej Kwinta
2018Y1 2019 03 25.95 S 9.9 TK 25.4T10 96 2.9 2 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 25.84 !S 9.8 TK 20.0T10 50 4 2 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 03 25.83 S 10.0 GB 10.0B 20 5 2/ ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.6, Reference stars: 98/103/108, 1/8 Ci, Sc, light wind, dew, +4C, transparent atm.
2018Y1 2019 03 25.83 S 10.1 TI 30.3L 5 63 5.5 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.4 mag/arcsec^2, Swanfilter wrikte gut: Durchmesser 7.5`
2018Y1 2019 03 24.86 S 9.7 TK 25.4T10 96 3 2/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 24.83 S 10.5:TK 20.0L 4 80 & 2 2 ICQ XX SCH04 Alex Scholten, Eerbeek; NELM: 5.8, Reference stars: TYC 2377-00038; TYC 2376-00563, weak and diffuse comet; only visible with averted vision
2018Y1 2019 03 24.81 S 9.8 TK 25.4L 5 64 5.5 3 ICQ XX MEY Maik Meyer
2018Y1 2019 03 23.86 S 9.3 TK 20.3T10 77 5 3 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 03 23.86 S 9.2 TK 13.0L 5 21 8.2 3 KUT Walter Kutschera
2018Y1 2019 03 23.83 S 9.8 GB 10.0B 20 5 3 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.0, Reference stars: 88/90/99/101, 2/8 Cs, +6C, calm, dew.
2018Y1 2019 03 23.81 M 9.9 TT 10.0B 20 4.9 3 ICQ XX LEH Martin Lehký
2018Y1 2019 03 23.81 S 10.2 TK 18.5L 5 73 2.3 2 ICQ XX KWI Maciej Kwinta
2018Y1 2019 03 23.46 C 11.6 AQ 20.3Y 5a390 3.6 ICQ XX YOS02N a 5C 3.5 mST9 K26 SI6 5 11.0 3.5s 3.5 Katsumi Yoshimoto; B-V of comp. stars were +0.73, +0.74, and +0.85.
2018Y1 2019 03 23.46 V 11.0 AQ 20.3Y 5a240 3.6 ICQ XX YOS02N a 5C 3.5 mST9 K26 SI6 5 11.0 3.5s 3.5 Katsumi Yoshimoto
2018Y1 2019 03 22.84 C 11.0 AQ 13.0L 5A800 4.4 ICQ XX HADaaI C 4.4 mZ12 MT9 KPR 5 U9* 0.1 1.2s 1.2 Jakub Hadač; Comet Alt.:38.4 Calculated mags:11.1,11.1,11.0,11.0
2018Y1 2019 03 22.82 Z 10.0 AQ 10.0R 6C125 14 FRIaaI C14 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 03 22.82 S 9.6 TI 30.0L 5 63 5 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h; SQM-L: 20.2 mag/arcsec^2, Mondaufgang & Restdämmerung Swanfilter wirkte: Durchmesser 6`
2018Y1 2019 03 22.81 S 9.9 TI 19.8L 49 5 1/ ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h; SQM-L: 20.1 mag/arcsec^2, Restdämmmerung ! Swanfilter wirkte
2018Y1 2019 03 22.78 M 9.9 TT 10.0B 20 4.5 3 ICQ XX LEH Martin Lehký
2018Y1 2019 03 21.81 Z 10.1 AQ 7.5A 4C120 15 LEHaaI C15 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 03 20.84 Z 10.1 AQ 7.5A 4A920 12 LEHaaI C12 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 03 20.79 Z 10.0 AQ 10.0R 6B404 14 FRIaaI C14 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 03 16.91 Z 10.7 U4 20.0T 2a720 5.1 ICQ XX SWAaa C 5.1 m CMP 5 U9* 1.3s 1.3 David Swan, Tynemouth, UK
2018Y1 2019 03 12.94 S 9.5 TK 18.5L 5 73 4 2/ ICQ XX KWI Maciej Kwinta; Moon alt. 2 deg.
2018Y1 2019 03 12.78 M 9.6 TT 10.0B 20 5 3/ ICQ XX LEH Martin Lehký
2018Y1 2019 03 11.96 M 8.7 TK 11.0L 7 96 8.5 2 ICQ XX SEMaa Saveliy Sementsov
2018Y1 2019 03 11.96 S 8.7 TK 10.0B 20 8 2/ ICQ XX GOI Marco Goiato
2018Y1 2019 03 11.82 S 9.6 TK 30.0L 5 64 & 8 2 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 03 10.88 C 10.3 NO 50.0T 7a 50 4 5 ICQ XX PAUaaI C dFL9 KA9 CMP 0 P3 36.0d36.0 Nirmal Paul, Slooh, Canary Island (MPC - G40)
2018Y1 2019 03 10.87 S 9.6 TK 25.4T10 96 5.1 3 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 09.97 V 9.1 AQ 25.0T 7B400 13 ICQ XX MAS01I C13 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:31.3 Calculated mags:9.1,9.1,9.1,9.1
2018Y1 2019 03 09.97 k 11.2 AQ 25.0T 7B400 5 ICQ XX MAS01I C 5 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:31.7 Calculated mags:11.2,11.2,11.2,11.2
2018Y1 2019 03 09.92 S 8.9 TI 30.0L 4 50 9 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h; SQM-L: 20.4 mag/arcsec^2, Swanfilter wirkte Durchmesser 12`
2018Y1 2019 03 09.89 S 9.2 GB 10.0B 20 4 5 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.2, Reference stars: 82/89/95, Strong wind, drifting Sc, +3C.
2018Y1 2019 03 09.87 S 9.0 TK 20.0L 6 40 5.5 2 ICQ XX DIAab Valentín Díaz, La Romana, Alicante, España
2018Y1 2019 03 09.87 S 8.2 TK 10.0B 25 10 3/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 03 09.86 S 8.8 TK 15.0L 5 30 8 2 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 03 09.86 S 8.5 TK 20.3T10 77 8 3/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 03 08.02 S 9.2 TK 25.4T10 96 3.4 2/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 07.87 S 8.6 TI 30.0L 4 69 15 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h
2018Y1 2019 03 07.85 S 8.3 TI 15.0L 4 25 13 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h; SQM-L: 20.5 mag/arcsec^2, Swanfilter wirkte Durchmesser: 20`
2018Y1 2019 03 07.83 Z 8.9 AQ 7.5A 4A681 21 0.16 88 LEHaaI C21 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 03 07.79 S 9.0 TK 25.4L 5 64 7 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 03 06.94 V 8.9 AQ 25.0T 7A320 14 ICQ XX MAS01I C14 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:45.5 Calculated mags:8.9,8.9,8.8,8.9
2018Y1 2019 03 06.94 k 10.4 AQ 25.0T 7A320 7 ICQ XX MAS01I C 7 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:45.9 Calculated mags:10.4,10.3,10.4,10.3
2018Y1 2019 03 06.90 Z 9.5 U4 20.0T 2a880 > 8.9 ICQ XX SWAaa C 8.9 m CMP 5 U9* 1.3s 1.3 David Swan, Tynemouth, UK
2018Y1 2019 03 06.77 M 8.3 TK 5.0B 20 8.3 3/ ICQ XX SEMaa Saveliy Sementsov
2018Y1 2019 03 06.76 S 8.4 TK 20.0L 4 40 7.5 3 ICQ XX BOH02 Jerzy Bohusz, Myślin Poland
2018Y1 2019 03 05.87 S 8.2 TK 10.0B 25 7 4 ICQ XX KAR02 Timo Karhula, Virsbo, Sweden; SQM-L: 20.6 mag/arcsec^2, Fresh snow cover, -16 deg C.
2018Y1 2019 03 05.84 S 8.6 TI 19.5L 37 8 2/ ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f
2018Y1 2019 03 05.83 S 8.8 TI 53.1L 88 7 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.8 mag/arcsec^2, Swanfilter wirkte Durchmesser 15`
2018Y1 2019 03 05.80 S 8.7 TK 8.0B 20 7 2/ KAS01 Volker Kasten
2018Y1 2019 03 05.10 Z 8.5 AQ 10.6R 5a480 27 LEHaaI C27 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 03 04.94 S 8.9 TK 25.4T10 96 4.4 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 04.81 S 9.3 TK 10.5R 6 37 3 PIL01 Uwe Pilz
2018Y1 2019 03 04.52 aV 9.3 HV 20.3Y 5a240 7 ICQ XX YOS02N a 5C 7 mST9 K26 SI6 5 9.8 3.5s 3.5 Katsumi Yoshimoto
2018Y1 2019 03 04.52 aL 9.8 HV 20.3Y 5a240 7 ICQ XX YOS02N a 5C 7 mST9 K26 SI6 5 10.5 3.5s 3.5 Katsumi Yoshimoto
2018Y1 2019 03 04.51 aH 10.0 HV 20.3Y 5a240 1.2 ICQ XX YOS02N a 3C 7 mST9 K26 SI6 5 9.1 3.5s 3.5 Katsumi Yoshimoto
2018Y1 2019 03 04.51 aC 9.8 HV 20.3Y 5a450 7 ICQ XX YOS02N a 1C 7 mST9 K26 SI6 5 9.8 3.5s 3.5 Katsumi Yoshimoto; V-I of comp. star was +0.70.
2018Y1 2019 03 04.42 xM 9.3 TK 25.0L 5 39 10.5 4 ICQ XX WYA Christopher Wyatt
2018Y1 2019 03 03.87 S 8.9 TK 25.4T10 96 6.3 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 03 03.41 xS 8.6 TK 7.0B 11 9.5 3 ICQ XX WYA Christopher Wyatt
2018Y1 2019 03 02.91 S 7.5 TK 4.5R 12 13 3/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 03 02.90 S 7.8 TK 10.0B 25 10 3/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 03 02.89 M 8.5 TT 5.0B 10 8 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 03 02.88 S 8.2 TK 20.0L 4 47 11 2/ ICQ XX BOH02 Jerzy Bohusz, Myślin Poland
2018Y1 2019 03 02.84 S 8.2 TK 8.0B 11 12 2 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 03 02.35 !S 8.6 TK 11.4L 4 20 5 2 ICQ XX RAE Stuart Rae, Karamu, New Zealand
2018Y1 2019 03 02.00 S 7.6 TI 20.0L 100 35 3 ICQ XX CORad Pedro Pérez Corujo, Pico de las Nieves(San Mateo, Gran Canaria, Islas Canarias.) Spain
2018Y1 2019 03 01.96 M 8.5 TT 5.0B 10 &10 2 ICQ XX GUZ Piotr Guzik
2018Y1 2019 03 01.89 V 8.5 AQ 25.0T 7A680 15 ICQ XX MAS01I C15 mG2x E2V KPR 5 U9* 0.1 1.5s 1.5 Martin Masek; Comet Alt.:67.0 Calculated mags:8.5,8.5,8.5,8.5,8.5,8.6,8.5,8.5,8.5,8.5
2018Y1 2019 03 01.89 k 10.0 AQ 25.0T 7A680 7.5 ICQ XX MAS01I C 7.5 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:67.5 Calculated mags:10.0,10.1,10.0,10.0,10.0,10.0,10.1,10.1
2018Y1 2019 03 01.84 S 8.5 TK 18.5L 5 73 5 2/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 28.85 S 8.5 GB 10.0B 20 7 4 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.6, Reference stars: 68/85/92, In pretty star rich field with M38 and NGC 1907. Calm, clear, transp sky, 2C, dry.
2018Y1 2019 02 28.84 C 10.1 AQ 25.0T 5a360 7 ICQ XX WAR01I C10 mSXV ICY KPR 5 U4* 2.4 2.0s 2.0 Johan Warell; Comet Alt.:60.3 Calculated mags:9.0,9.0,9.0,8.9,14.9,8.8,15.5,9.1,8.9,8.8,8.9
2018Y1 2019 02 28.81 C 13.7 AC 23.5T2350 80 BAHab BAHab Vladimir Bahyl, observatory "Júlia", Zvolenská Slatina, Slovak Republic, Europe; Data treated in the Astrometrica
2018Y1 2019 02 28.76 S 8.4 TK 18.5L 5 73 5.5 2/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 27.96 M 7.8 TT 10.0B 4 25 8 3/ ICQ XX LEH Martin Lehký
2018Y1 2019 02 27.93 S 9.1 TK 25.4T10 96 4.1 3 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 27.92 S 8.0 TK 8.0B 15 &12 2 ICQ XX SCH04 Alex Scholten, Eerbeek; NELM: 6.1, Reference stars: TYC 2411-00508, TYC 2411-01517, comet in field with several weak start
2018Y1 2019 02 27.91 S 7.8 TK 6.3B 9 24 2 SCHaa Gerhard Scheerle
2018Y1 2019 02 27.89 S 8.3 TK 5.0B 15 13 2/ KAS01 Volker Kasten
2018Y1 2019 02 27.89 S 7.5 TI 15.0L 4 25 18 2/ ICQ XX HAR11 Christian Harder, Westerholz/ Germany; SQM-L: 20.8 mag/arcsec^2, Swanfilter wirkte Durchmesser 25`
2018Y1 2019 02 27.87 Z 8.0 AQ 10.0R 6B283 33 0.24 95 FRIaaI C33 mCDS CFC AIT 5 2.0s 2.0 Steffen Fritsche
2018Y1 2019 02 27.85 S 8.3 TK 9.0R10 36 6 2/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 27.84 Z 8.3 AQ 7.5A 4B520 24 0.3 91 LEHaaI C24 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 02 27.84 S 8.3 TK 13.0L 5 46 10 2/ ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 27.83 S 8.4 TK 18.5L 5 73 5 2/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 27.83 S 7.8 U4 5.6B 8 9 1 ICQ XX SZA Sandor Szabo, Agfalva
2018Y1 2019 02 27.83 S 7.9 AC 10.0B 25 15 2/ ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 27.82 S 7.6 TK 8.0B 11 15 2 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 27.77 S 7.8 TK 12.0R 5 30 11 3 ICQ XX MEY Maik Meyer
2018Y1 2019 02 27.76 M 8.0 TT 5.0B 10 10 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 26.93 V 8.1 AQ 25.0T 7A680 16 ICQ XX MAS01I C16 mG2x E2V KPR 0 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:59.3 Calculated mags:8.1,8.2,8.2,8.1,8.1,8.1,8.1
2018Y1 2019 02 26.93 k 9.6 AQ 25.0T 7A680 9 ICQ XX MAS01I C 9 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:59.7 Calculated mags:9.6,9.6,9.6,9.6,9.6,9.7,9.6,9.6,9.7
2018Y1 2019 02 26.91 S 8.3 TK 8.0B 15 &12 3 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 26.90 S 8.2 TK 13.0L 5 46 10 2/ ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 26.89 S 8.2 TK 5.0B 15 8 3 KAS01 Volker Kasten
2018Y1 2019 02 26.89 M 7.8 TT 10.0B 4 25 8 3 ICQ XX LEH Martin Lehký
2018Y1 2019 02 26.89 S 7.8 TI 4.4B 8 15 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f
2018Y1 2019 02 26.89 S 8.1 TI 53.1L 81 14 4 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.8 mag/arcsec^2, Swanfilter wirkte Durchmesser 16`
2018Y1 2019 02 26.87 S 8.6 TK 25.0L 5 53 9.5 2 ICQ XX BOH02 Jerzy Bohusz, Myślin Poland
2018Y1 2019 02 26.86 S 8.2 TK 9.0R10 36 7 3 ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 26.86 S 8.7 TK 25.4T10 96 6.6 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 26.85 S 8.4 TK 18.5L 5 73 6 2/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 26.81 S 8.9 GB 10.0B 20 6 4 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.4, Reference stars: 85/88/94, 2/8 Cs, haze, 3C, light frost, calm.
2018Y1 2019 02 26.78 S 7.6 TK 12.0R 5 30 11 3 ICQ XX MEY Maik Meyer; comet involved 9.3-mag star
2018Y1 2019 02 26.47 V 9.1 AQ 20.3Y 5a450 8.2 4.0m100 ICQ XX YOS02I a 30C 8.2 mST9 K26 SI6 5 11.4 3.5s 3.5 Katsumi Yoshimoto
2018Y1 2019 02 26.46 C 9.3 AQ 20.3Y 5a600 8.2 4.0m100 ICQ XX YOS02I a 30C 8.2 mST9 K26 SI6 5 11.4 3.5s 3.5 Katsumi Yoshimoto; B-V of comp. stars were +0.57, +0.59 and +0.64.
2018Y1 2019 02 26.43 M 8.0 TJ 10.0B 20 7 5 ICQ XX NAG08 Yoshimi Nagai
2018Y1 2019 02 25.99 S 8.8 TK 25.4T10 96 6.8 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 25.92 S 7.9 TK 18.5L 5 73 7 3 ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 25.88 S 7.3 TI 4.4B 8 11 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f
2018Y1 2019 02 25.87 S 8.2 TK 8.0B 15 &13 2 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 25.86 S 8.1 TK 13.0L 5 25 11 3 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 25.86 Z 7.5 AQ 10.0R 6B043 41 0.35 99 FRIaa Steffen Fritsche
2018Y1 2019 02 25.84 Z 7.7 AQ 7.5A 4B641 35 0.52 97 LEHaaI C35 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 02 25.79 Z 7.4 U4 9.0R 5C543 19.74 ICQ XX JAMaaI C19.74mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 25.78 S 7.9 TK 5.0B 15 10 2/ KAS01 Volker Kasten
2018Y1 2019 02 25.77 S 7.4 TK 12.0R 5 30 14 3 ICQ XX MEY Maik Meyer
2018Y1 2019 02 25.77 M 7.5 TT 10.0B 20 10 3/ ICQ XX LEH Martin Lehký
2018Y1 2019 02 25.00 S 6.8 TK 4.5R 12 15 3/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 24.97 S 7.2 TI 4.4B 8 20 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f
2018Y1 2019 02 24.92 S 8.0 TK 8.0B 15 13 3 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 24.90 S 7.4 TK 6.3B 9 24 4 SCHaa Gerhard Scheerle
2018Y1 2019 02 24.89 S 7.4 TK 23.5T10 112 16 4 SCHaa Gerhard Scheerle
2018Y1 2019 02 24.88 Z 7.7 AQ 7.5A 4A201 32 0.66 98 LEHaaI C32 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 02 24.87 S 7.5 GB 10.0B 20 10 4 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; Reference stars: 68/77, Calm, haze, dew, 3C.
2018Y1 2019 02 24.85 S 9.0 TK 25.4T10 96 4.2 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 24.85 S 7.9 TK 13.0L 5 25 11 3 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 24.84 M 7.5 TT 5.0B 10 12 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 24.83 S 8.2 TK 25.0L 5 69 8.1 3/ ICQ XX BOH02 Jerzy Bohusz, Myślin Poland
2018Y1 2019 02 24.83 S 7.9 HV 6.3B 9 10 2 ICQ XX KAM01 Andreas Kammerer, Schoellbronn (Black Forest), Germany; NELM: 5.6, Rapid fade and shrinkage compared to Feb. 13/14; with 12.5T, 48x very slightly condensed object; no false nucleus down to 101x discernible.
2018Y1 2019 02 24.81 S 7.8 TK 18.5L 5 73 8 3 ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 24.80 Z 7.2 U4 9.0R 5C933 20.68 ICQ XX JAMaaI C20.68mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 24.77 S 7.6 TK 12.0R 5 30 15 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 24.77 S 7.9:TK 5.0B 15 10 3 KAS01 Volker Kasten
2018Y1 2019 02 24.77 Z 7.5 AQ 10.0R 6B404 38 0.65 97 FRIaaI Steffen Fritsche
2018Y1 2019 02 24.46 S 8.0 TT 10.0B 25 8 3 ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 02 23.94 S 7.2 TI 8.0B 20 30 2 ICQ XX CORad Pedro Pérez Corujo, Vega de San Mateo Gran Canaria. Spain
2018Y1 2019 02 23.94 S 8.0 TK 8.0B 15 &11 2 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 23.91 Z 7.5 AQ 10.0R 6A502 36 0.2 101 FRIaaI Steffen Fritsche
2018Y1 2019 02 23.91 S 9.2 TK 25.4T10 96 4.7 3 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 23.90 S 7.2 TK 6.3B 9 24 2 SCHaa Gerhard Scheerle
2018Y1 2019 02 23.85 S 7.8 TK 25.0L 5 38 15 4 KUT Walter Kutschera
2018Y1 2019 02 23.82 M 7.7 TK 18.5L 5 73 8 3/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 23.82 S 7.0 TK 8.0B 11 14 3 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 23.81 S 7.8 TK 13.0L 4 25 11 3 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 23.81 Z 7.7 AQ 7.5A 4C002 30 0.39 96 LEHaaI C30 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 02 23.80 Z 7.4 U4 9.0R 5C867 18.61 ICQ XX JAMaaI C18.61mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 23.76 S 7.6 TK 12.0R 5 30 15 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 23.76 M 7.4 TT 5.0B 10 15 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 23.51 S 7.7 TJ 7.0R 10 15 3/ ICQ XX YOS04 Seiichi Yoshida
2018Y1 2019 02 23.51 S 8.3 TJ 40.0L 4 36 11 4 ICQ XX YOS04 Seiichi Yoshida
2018Y1 2019 02 23.50 S 6.9 HV 5.0B 7 10 3 ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 02 22.89 S 7.6 TK 5.0B 15 17 3 KAS01 Volker Kasten
2018Y1 2019 02 22.87 k 9.2 AQ 25.0T 7A080 10 ICQ XX MAS01I C10 mG2x E2V KPR 5 U9* 0.0 1.5s 1.5 Martin Masek; Comet Alt.:81.1 Calculated mags:9.1,9.2,9.2,9.2,9.2,9.1,9.2,9.2
2018Y1 2019 02 22.87 S 8.0 TK 10.3R 7 40 8.8 2/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 22.87 k 7.6 AQ 25.0T 7A080 17 ICQ XX MAS01I C17 mG2x E2V KPR 5 U9* 0.1 1.5s 1.5 Martin Masek; Comet Alt.:81.1 Calculated mags:7.6,7.7,7.5,7.7
2018Y1 2019 02 22.83 S 6.8 TK 6.3B 9 28 3 SCHaa Gerhard Scheerle
2018Y1 2019 02 22.82 S 7.3 TK 12.0R 5 30 17 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 22.82 M 7.5 TK 18.5L 5 73 9 4 ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 22.81 M 7.2 TT 5.0B 10 16 3/ ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 22.79 S 7.6 GB 8.0B 11 8 5 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 6.6, Reference stars: 66/74/79/84, Diffuse coma with brighter center. 3/8 Sc, Cs, light frost, calm, 0C.
2018Y1 2019 02 22.78 S 7.8 TK 7.0B 6 16 13 5 PIL01 Uwe Pilz
2018Y1 2019 02 22.78 S 7.2 TI 4.4B 8 22 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f
2018Y1 2019 02 22.77 S 7.4 TI 30.3L 50 18 4 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.4 mag/arcsec^2, Restdämmerung UHC-E Filter sprach an - Durchm. 22`
2018Y1 2019 02 21.90 C 7.7 AQ 25.4Y 7a890 18.3 10.1m101 ICQ XX BAMaaI C18.33mQHA GSA KPR 0 U9* 0.0 2.2s 2.2 Daniel Bamberger
2018Y1 2019 02 21.89 S 7.6 TK 10.3R 7 40 9.4 3 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 21.86 Z 8.1 GG 20.0T 2a560 >15 ICQ XX SWAaa C15 m CMP 5 U9* 1.3s 1.3 David Swan, Tynemouth, UK; Hyperstar / UV+IR cut / ASI178MM
2018Y1 2019 02 21.81 S 6.7 TK 8.0B 11 15 3 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 21.57 S 7.0 HV 5.0B 7 8 3/ ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 02 21.09 Z 7.0 AQ 10.6R 5a300 39 0.72 104 LEHaaI C39 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 02 20.76 S 6.9 TK 5.0B 10 &20 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 19.84 C 12.4 AC 23.5T2350a 30 4 ICQ XX BAHab C dG2x A48 0 U5* 0.7 d Vladimir Bahyl, observatory "Júlia", Zvolenská Slatina, Slovak Republic, Europe
2018Y1 2019 02 19.81 S 6.6 AC 10.0B 25 18 3 ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 18.84 c 12.2 AC 23.5T2350a 30 BAH ab BAHab a 30C dG2x A48 0 U d Vladimir Bahyl, observatory "Júlia", Zvolenská Slatina, Slovak Republic, Europe
2018Y1 2019 02 18.82 S 7.0 TK 6.3B 9 16 3 SCHaa Gerhard Scheerle
2018Y1 2019 02 18.77 S 6.6 AC 5.0B 10 &15 3 ICQ XX RES Maciej Reszelski, Szamotuly, Poland; Moon nearby
2018Y1 2019 02 18.77 M 7.1 TT 10.0B 4 25 15 3 ICQ XX LEH Martin Lehký
2018Y1 2019 02 17.75 M 7.0 TT 10.0B 4 25 10 3/ ICQ XX LEH Martin Lehký
2018Y1 2019 02 17.08 M 6.9 TT 6.0B 12 15 3 ICQ XX LEH Martin Lehký
2018Y1 2019 02 16.86 S 7.2 TK 23.5T10 112 8 4 SCHaa Gerhard Scheerle
2018Y1 2019 02 16.78 S 6.5 AC 5.0B 10 &17 3 ICQ XX RES Maciej Reszelski, Szamotuly, Poland; Moon nearby
2018Y1 2019 02 16.19 S& 7.0 GB 5.0B 7 15 4 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; NELM: 5.5, Reference stars: 66/74, Hazy sky, altitude 18 deg. Clear, frost, calm, 1C.
2018Y1 2019 02 16.18 S 6.7 TK 5.0B 10 20 3 ICQ XX MEY Maik Meyer
2018Y1 2019 02 16.14 M 6.5 TT 5.0B 10 20 3/ ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 16.08 M 6.9 TT 6.0B 12 15 3 ICQ XX LEH Martin Lehký
2018Y1 2019 02 15.96 S 6.8 TK 6.3B 9 24 3 SCHaa Gerhard Scheerle
2018Y1 2019 02 15.94 Z 6.5 AQ 10.0R 6A300 41 FRIaaI Steffen Fritsche
2018Y1 2019 02 15.80 C 8.5 AQ 13.0L10a150 6.6 ICQ XX HADaaI C 6.6 mZ12 MT9 KPR 0 U5* 0.0 1.1s 1.1 Jakub Hadač; Comet Alt.:50.5 Calculated mags:8.5,8.6,8.5,8.5,8.5,8.5
2018Y1 2019 02 15.56 Z 6.8:AQ 10.6R 5a300 31 0.51 66 LEHaaI C31 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 02 15.19 S 6.6 TK 13.0L 5 25 13 4 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 15.16 S 6.9 TK 5.6B 8 &13 5 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 15.14 S 6.6 AC 5.0B 10 25 3/ ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 15.14 S 7.1:TK 5.0B 10 &20 3 ICQ XX MEY Maik Meyer; comet involved w/ asterism of 3 stars of 7.5, 8.7, and 9.4 mag, respectively
2018Y1 2019 02 15.14 S 6.2 TI 4.4B 8 30 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany h; SQM-L: 20.4 mag/arcsec^2, Feldsterne störten
2018Y1 2019 02 15.11 M 7.8 TK 10.0B 25 10.2 4 ICQ XX CER01 Jakub Cerny; Comet Alt.:34.33 AS:-3.0,-5.0,-1.0,2.0,3.0 Star mags:7.394,6.888,7.771,8.015,8.317 TYC 1953-1293-1,TYC 1953-273-1,TYC 1953-536-1,TYC 1953-1429-1,TYC 1953-102-1
2018Y1 2019 02 15.10 S 6.7 TK 7.0B 6 16 12 5 PIL01 Uwe Pilz
2018Y1 2019 02 15.06 Z 6.4 U4 9.0R 5C871 25 ICQ XX JAMaaI C25 mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 14.97 V 5.7 AQ 7.5A 4a324 12 ICQ XX PAR03I C12 mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: +2C; moonlight
2018Y1 2019 02 14.97 V 5.9 AQ 7.5A 4a324 9.53 ICQ XX PAR03I C 9.53mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: +2C; moonlight
2018Y1 2019 02 14.96 C 7.8 AQ 25.4Y 7a600 14.7 12.3m128 ICQ XX BAMaaI C14.67mQHA GSA KPR 0 U9* 0.0 2.2s 2.2 Daniel Bamberger
2018Y1 2019 02 14.93 Z 6.6 AQ 10.0R 6A100 47 0.37 128 FRIaaI Steffen Fritsche
2018Y1 2019 02 14.93 S 7.1 TK 5.0B 15 21 3/ KAS01 Volker Kasten
2018Y1 2019 02 14.92 S 6.7 TK 10.3R 7 40 12 4 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 14.83 S 7.0 TK 6.3B 9 20 4 SCHaa Gerhard Scheerle
2018Y1 2019 02 14.76 C 11.6 AA 23.5T2350 80 2 BAH ab BAHab Vladimir Bahyl, observatory "Júlia", Zvolenská Slatina, Slovak Republic, Europe; Magnitude determined in Astrometrica
2018Y1 2019 02 14.75 C 11.5 - 23.5T2350 10 0 6 0.0 0 ICQ XX BAHab Vladimir Bahyl, observatory "Júlia", Zvolenská Slatina, Slovak Republic, Europe
2018Y1 2019 02 14.55 S 6.9 HV 5.0B 7 14 3/ ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 02 14.23 k 7.4 AQ 30.0C 6A560 24 ICQ XX MAS01I C24 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:11.2 Calculated mags:7.4,7.3,7.3,7.4,7.4
2018Y1 2019 02 14.23 V 6.0 AQ 30.0C 6A320 39 26.9m140 ICQ XX MAS01I C39 mG4x KA3 KPR 5 U9* 0.1 1.8s 1.8 Martin Masek; Comet Alt.:11.4 Calculated mags:6.0,6.1,6.1,6.0,6.0
2018Y1 2019 02 14.16 V 6.4 AQ 25.0T 7a840 20.5 ICQ XX MAS01I C20.5 mG2x E2V KPR 5 U7* 0.1 1.5s 1.5 Martin Masek; Comet Alt.:36.2 Calculated mags:6.4,6.5,6.5,6.3,6.6
2018Y1 2019 02 14.15 k 7.4 AQ 25.0T 7a960 18 ICQ XX MAS01I C18 mG2x E2V KPR 5 U8* 0.1 1.5s 1.5 Martin Masek; Comet Alt.:37.0 Calculated mags:7.5,7.4,7.4,7.5
2018Y1 2019 02 14.06 Z 6.2 U4 9.0R 5C867 27.45 ICQ XX JAMaaI C27.45mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 14.01 C 8.2 NO 50.0T 7a 20 9.6 6 ICQ XX PAUaaI C dFL9 KA9 CMP 0 P9 36.0d36.0 Nirmal Paul, Slooh, Canary Island (MPC - G40)
2018Y1 2019 02 13.94 S 6.8 HV 6.3B 9 13 3/ ICQ XX KAM01 Andreas Kammerer, Karlsruhe, Germany; NELM: 4.8, Sky background noticably brightened due to half-lit Moon in Tau. Comet well-visible but not obvious; seemed to be a bit smaller and a bit more condensed than the night before.
2018Y1 2019 02 13.93 S 7.2 TK 8.0B 20 11 GEIaa Alexander Geiss
2018Y1 2019 02 13.92 S 7.2 TK 23.5T10 112 16 6/ SCHaa Gerhard Scheerle
2018Y1 2019 02 13.92 S 7.0 TK 6.3B 9 20 4/ SCHaa Gerhard Scheerle
2018Y1 2019 02 13.88 S 7.1 TK 10.3R 7 40 12 4 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 13.85 B 7.3 TK 6.3B 9 15.4 4 ICQXXX HAS02 Werner Hasubick
2018Y1 2019 02 13.72 M 6.7 TK 8.0B 20 15 4 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 02 13.65 $M 6.5 TK 6.3B 9 14 4 ICQ XX RAE Stuart Rae, Karamu, New Zealand
2018Y1 2019 02 13.59 S 6.4 TT 4.0B 8 20 4/ ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 02 13.15 S 5.7 TK 4.5R 12 22 4/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 13.14 S 5.5 TK 0.0E 30 5 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 13.05 V 5.6 AQ 7.5A 4a276 12 ICQ XX PAR03I C12 mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: -2C
2018Y1 2019 02 13.05 V 5.7 AQ 7.5A 4a276 9.53 ICQ XX PAR03I C 9.53mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: -2C
2018Y1 2019 02 13.04 M 6.3 TK 5.0B 10 30 D4/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 12.99 V 5.7 AQ 7.5A 4a204 12 ICQ XX PAR03I C12 mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: -2C
2018Y1 2019 02 12.99 V 5.9 AQ 7.5A 4a204 9.53 ICQ XX PAR03I C 9.53mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; temperature: -2C
2018Y1 2019 02 12.93 S 6.7 HV 6.3B 9 18 3 ICQ XX KAM01 Andreas Kammerer, Karlsruhe, Germany; NELM: 4.7, rather large, slightly condensed coma easily visible, but not obvious in 9x63; Moon brightened sky background.
2018Y1 2019 02 12.91 B 7.7 TK 5.0B 10 13.8 3 ICQXXX HAS02 Werner Hasubick
2018Y1 2019 02 12.85 M 6.4 TT 6.0B 12 15 4/ ICQ XX LEH Martin Lehký
2018Y1 2019 02 12.85 S 6.1 TK 25.0L 5 53 18 3/ ICQ XX BOH02 Jerzy Bohusz, Myślin Poland
2018Y1 2019 02 12.84 S 6.1 AC 5.0B 10 32 4 ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 12.40 M 6.7 TK 5.0B 10 30 5 ICQ xx HER02 Carl Hergenrother
2018Y1 2019 02 12.36 Z 6.3 AQ 10.6R 5a300 50 0.9 134 LEHaaI C50 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 02 12.03 S 5.5 TK 0.0E 30 5 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 12.02 S 5.6 TK 4.5R 12 25 4 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 11.99 M 5.6 TK 0.0E 28 4 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 11.98 S 6.5 AC 5.0B 10 27 3 ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 11.98 M 5.8 TK 3.3R 5 5 25 4 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 11.96 S 6.5 HV 6.3B 9 16 3 ICQ XX KAM01 Andreas Kammerer, Karlsruhe, Germany; NELM: 4.5, Due to somewhat brightened sky background comet was no easy object; rather diffuse coma, slightly condensed towards center.
2018Y1 2019 02 11.93 S 7.1 - 7.0B 15 4 ICQ XX HOLab Gustav Holmberg, Lund, Sweden; Urban sky conditions, AAVSO sequence for R Leo used for comp. star.
2018Y1 2019 02 11.93 B 7.1 GB 8.0B 11 20 5 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; Reference stars: 62/73, Well condensed, round coma. 4 deg NE of Regulus. 6d Moon low in W. Clear, +1C, light wind, frost.
2018Y1 2019 02 11.93 B 6.7 GB 5.0B 7 20 5 ICQ XX WAR01 Johan Warell, Lindby Observatory (K60), Skurup, Sweden ; Reference stars: 62/73, Well condensed, round coma. 4 deg NE of Regulus. 6d Moon low in W. Clear, +1C, light wind, frost.
2018Y1 2019 02 11.79 S 7.4 TK 10.0L 4 20 11 3 ICQ XX PEA Andrew Pearce, Nedlands
2018Y1 2019 02 11.76 S 6.6 TK 5.0B 7 14 3 ICQ XX KAR02 Timo Karhula, Virsbo, Sweden; Altitude 14 deg. A 7.3 mag star interfered. 38% moon up.
2018Y1 2019 02 11.72 S 6.3 TK 4.2B 8 15 3/ ICQ XX YOS02 Katsumi Yoshimoto
2018Y1 2019 02 11.64 xM 6.6 YG 5.0B 7 30 4 ICQ XX WYA Christopher Wyatt
2018Y1 2019 02 11.55 S 6.5 TT 4.0B 8 20 4/ ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 02 11.09 S 6.6 TK 5.6B 8 &20 6 ICQ XX SCH04 Alex Scholten, Eerbeek
2018Y1 2019 02 11.04 S 6.8 TK 9.0R 5 33 8 3 ICQ XX SOU01 Willian Souza
2018Y1 2019 02 11.03 S 6.7 TK 7.0B 15 8 3 ICQ XX SOU01 Willian Souza
2018Y1 2019 02 11.02 Z 6.0 U4 9.0R 5C542 34 ICQ XX JAMaaI C34 mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 10.91 Z 7.3 U4 20.0T 2a800 >27 ICQ XX SWAaa C27 m CMP 5 U9* 1.3s 1.3 David Swan, Tynemouth, UK; Based on green channel extracted from colour image. ASI178MC on C8 Hyperstar.
2018Y1 2019 02 10.88 C 6.9 AQ 25.4Y 7A725 18.3 2.2m331 ICQ XX BAMaaI C18.3 mQHA GSA KPR 0 U9* 0.0 2.2s 2.2 Daniel Bamberger
2018Y1 2019 02 10.76 S 7.6 TK 10.0L 4 20 10 3 ICQ XX PEA Andrew Pearce, Nedlands
2018Y1 2019 02 10.69 C 6.7 NO 12.7T 5a 60 11 6 ICQ XX PAUaaI C dFM1 0 P6 9.0d 9.0 Nirmal Paul, Siding Spring Observatory Australia - MPC Q62; IRIS Software for visual equivalent magnitude
2018Y1 2019 02 10.29 S 6.2 TK 5.0B 7 30 4 ICQ XX GOI Marco Goiato
2018Y1 2019 02 10.18 S 6.3 AC 5.0B 10 25 3 ICQ XX RES Maciej Reszelski, Szamotuly, Poland
2018Y1 2019 02 10.08 M 6.5 TK 18.5L 5 73 9 4 ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 10.08 S 6.7 TK 7.0B 15 10 3/ ICQ XX SOU01 Willian Souza
2018Y1 2019 02 10.00 S 6.1 TT 0.0E &30 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 09.99 M 6.2 TK 5.0B 10 17 5 ICQ XX DIAab Valentín Díaz, La Romana, Alicante, España; NELM: 5.0, light poluttion
2018Y1 2019 02 09.99 M 6.4 TT 5.0B 10 25 4/ ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 09.94 S 7.2 TK 5.0B 15 20 3/ KAS01 Volker Kasten
2018Y1 2019 02 09.80 M 6.5 TK 8.0B 20 15 4 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 02 09.75 M 6.5 TT 5.0B 7 28 4 ICQ XX TSU02 Mitsunori Tsumura
2018Y1 2019 02 09.69 xM 7.0 TK 5.0B 7 17.4 5/ ICQ XX WYA Christopher Wyatt
2018Y1 2019 02 09.58 S 6.5 TT 4.0B 8 20 4 ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 02 09.25 S 6.3 TK 5.0B 7 30 4/ ICQ XX GOI Marco Goiato
2018Y1 2019 02 09.08 S 6.8 TK 7.0B 15 10 3 ICQ XX SOU01 Willian Souza
2018Y1 2019 02 09.08 Z 6.2 U4 9.0R 5C866 30 ICQ XX JAMaaI C30 mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 09.07 S 6.6 TK 10.3R 7 40 15 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 09.05 V 6.0 AQ 7.5A 4a465 9.53 ICQ XX PAR03I C 9.53mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; haze; temperature: -2C
2018Y1 2019 02 09.05 V 5.8 AQ 7.5A 4a465 12 ICQ XX PAR03I C12 mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; haze; temperature: -2C
2018Y1 2019 02 08.96 S 6.1 TK 8.0B 11 25 3 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 08.95 S 6.9 TK 18.5L 5 119 8 3/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 08.94 M 6.5 TT 5.0B 10 25 4 0.6 300 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 08.73 M 6.9 TT 5.0B 7 25 3 ICQ XX TSU02 Mitsunori Tsumura
2018Y1 2019 02 08.59 M 6.8 TJ 5.0B 12 12 5 ICQ XX NAG08 Yoshimi Nagai
2018Y1 2019 02 08.52 S 6.7 TT 4.0B 8 17 4 ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 02 08.50 Z 6.4 AQ 10.6R 5a360 55 1.2 292 LEHaaI C55 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 02 08.25 V 6.2 AQ 30.0C 6A080 45 ICQ XX MAS01I C45 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:36.5 Calculated mags:6.2,6.3,6.2,6.2
2018Y1 2019 02 08.25 k 7.5 AQ 30.0C 6A080 24 ICQ XX MAS01I C24 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:36.5 Calculated mags:7.5,7.5,7.6,7.5,7.6,7.6,7.6,7.5,7.5
2018Y1 2019 02 08.17 S 6.5 TK 5.0B 7 25 4/ ICQ XX GOI Marco Goiato
2018Y1 2019 02 08.10 M 6.6 TK 5.0B 10 25 4 ICQ XX MEY Maik Meyer
2018Y1 2019 02 07.97 M 6.5 TT 5.0B 10 25 4 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 07.69 S 7.1 HV 5.0B 7 16 3 ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 02 07.65 M 7.1 TK 8.0B 20 15 3 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 02 07.34 S 7.5:AC 15.0T10 38 2/ ICQ XX AGUaa Salvador Aguirre, Sonora,Mex.
2018Y1 2019 02 07.19 M 7.1 TT 6.0B 12 20 3 ICQ XX LEH Martin Lehký
2018Y1 2019 02 07.16 S 6.6 AC 10.0B 20 20 3 ICQ XX RES Maciej Reszelski, Szamotuły, Poland
2018Y1 2019 02 07.12 S 6.7 TK 5.0B 7 20 4 ICQ XX GOI Marco Goiato
2018Y1 2019 02 07.06 V 5.9 AQ 7.5A 4a480 12 ICQ XX PAR03I C12 mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; clear; temperature: -2C
2018Y1 2019 02 07.06 V 6.1 AQ 7.5A 4a480 9.53 ICQ XX PAR03I C 9.53mCDS CAC MIm 5 U9 0.0 3.6s 3.6 Mieczyslaw Leszek Paradowski, Lublin, Poland; Software: IRIS; clear; temperature: -2C
2018Y1 2019 02 07.05 S 6.4 TT 0.0E &30 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 07.04 M 6.6 TT 5.0B 10 25 4 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 07.04 S 7.2 TK 18.5L 5 73 8 3/ ICQ XX KWI Maciej Kwinta
2018Y1 2019 02 07.04 S 7.2 TK 5.0B 7 12 3 ICQ XX PAR03 Mieczyslaw Leszek Paradowski, Lublin, Poland
2018Y1 2019 02 07.03 Z 7.0 AQ 10.0R 6A260 39 FRIaaI Steffen Fritsche
2018Y1 2019 02 07.01 Z 6.8:AQ 7.5A 4a720 32 LEHaaI C32 mPDS CAC AIT 5 3.4s 3.4 Thomas Lehmann
2018Y1 2019 02 06.16 S 7.6 TK 5.0B 4 7 14 4 PIL01 Uwe Pilz
2018Y1 2019 02 06.14 S 6.9 TK 5.0B 10 20 3/ ICQ XX MEY Maik Meyer
2018Y1 2019 02 06.13 S 7.2 TK 8.0R 7 27 10.4 4 KUT Walter Kutschera
2018Y1 2019 02 06.12 S 6.8 TK 5.0B 10 8 3 ICQ XX AMO01 Alexandre Amorim
2018Y1 2019 02 06.04 S 5.9 TK 4.5R 12 30 3 1.3 300 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 06.00 S 7.5 TK 7.0B 6 16 10 3/ GUT Otto Guthier
2018Y1 2019 02 05.96 M 6.8 TT 5.0B 10 20 3 ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 05.65 M 7.1 TK 6.3B 9 17 4 ICQ XX RAE Stuart Rae, Karamu, New Zealand
2018Y1 2019 02 05.29 k 8.1 AQ 30.0C 6B880 21 ICQ XX MAS01I C21 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:47.3 Calculated mags:8.1,8.1,8.1,8.1,8.1,8.1,8.1,8.1
2018Y1 2019 02 05.28 V 6.9 AQ 30.0C 6A440 30 ICQ XX MAS01I C30 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:46.9 Calculated mags:6.9,6.9,7.0,7.0,6.9,6.9
2018Y1 2019 02 05.19 S 7.4 TK 10.3R 7 40 13 3/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 05.15 C 7.4 NO 50.0T 7a 20 9 6 ICQ XX PAUaaI C dFL9 KA9 CMP 0 P9 36.0d36.0 Nirmal Paul, Slooh, Canary Island (MPC - G40)
2018Y1 2019 02 04.68 xM 7.2 TK 5.0B 7 25 4 ICQ XX WYA Christopher Wyatt
2018Y1 2019 02 04.19 S 7.3 TK 8.0B 11 10 3 ICQ XX LAB02 Carlos Labordena, La Serra
2018Y1 2019 02 04.15 S 7.3 TK 12.0R 5 30 20 4 ICQ XX MEY Maik Meyer
2018Y1 2019 02 04.14 S 7.1 TK 5.0B 10 25 3 ICQ XX MEY Maik Meyer
2018Y1 2019 02 04.09 S 7.5 TK 5.0B 15 13 4 KAS01 Volker Kasten
2018Y1 2019 02 04.02 S 7.3 TK 8.0B 20 12 3 ICQ XX DIAab Valentín Díaz, Cancárix, Albacete, España; Low height
2018Y1 2019 02 04.02 S 7.1 TK 5.0B 10 16 3 ICQ XX DIAab Valentín Díaz, Cancárix, Albacete, España; Low heigh
2018Y1 2019 02 03.98 S 7.3 TI 19.8L 49 9 3 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 20.6 mag/arcsec^2, Swanfilter wirkte gut : Durchm. 12`
2018Y1 2019 02 03.69 xM 7.2 TK 5.0B 7 21 4 ICQ XX WYA Christopher Wyatt
2018Y1 2019 02 03.19 S 7.5 TK 13.0L 5 25 9 3 ICQ XX BUIaa Gideon van Buitenen, Dordrecht, NL
2018Y1 2019 02 03.18 S 7.7 TK 10.3R 7 40 8.7 3 ICQ XX COLac Mike Collins, Everton
2018Y1 2019 02 03.13 Z 7.1 U4 9.0R 5F190 20.68 ICQ XX JAMaaI C20.68mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 02 03.10 S 6.1 TK 4.5R 12 35 2 3.5 300 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 02 03.10 C 7.8 AQ 25.4Y 7A190 14.7 3.2m284 ICQ XX BAMaaI C14.67mQHA GSA KPR 0 U9* 0.0 2.2s 2.2 Daniel Bamberger
2018Y1 2019 02 03.09 S 10.2 HS 54.0L 5 80 2.5 3 KUT Walter Kutschera
2018Y1 2019 02 03.07 S 8.0:TK 8.0B 20 7 1 ICQ XX DIAab Valentín Díaz, Elche ciudad, España; NELM: 4.5, Light pollution.
2018Y1 2019 02 01.58 S 7.9 TT 10.0B 25 10 4 ICQ XX MAT08 Michael Mattiazzo, Stockport, South Australia
2018Y1 2019 02 01.19 C 7.9 NO 50.0T 7a 20 7.8 6 ICQ XX PAUaaI C dFL9 KA9 CMP 0 P9 36.0d36.0 Nirmal Paul, Slooh, Canary Island (MPC - G40)
2018Y1 2019 02 01.14 M 7.0 TT 5.0B 10 15 3/ ICQ XX GUZ Piotr Guzik
2018Y1 2019 02 01.13 S 7.5 TK 18.5L 5 73 6 3 ICQ XX KWI Maciej Kwinta
2018Y1 2019 01 31.45 Z 7.6 AQ 10.6R 5a480 33 0.78 297 LEHaaI C33 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 01 31.31 S 7.7 TK 5.0B 10 8 2 ICQ XX AMO01 Alexandre Amorim
2018Y1 2019 01 31.29 S 8.1 TK 9.0R10 36 4 2 ICQ XX AMO01 Alexandre Amorim
2018Y1 2019 01 31.24 k 9.1 AQ 30.0C 6A080 10.2 ICQ XX MAS01I C10.2 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:40.3 Calculated mags:9.1,9.1,9.0,9.1,9.1,9.1,9.1,9.0
2018Y1 2019 01 31.24 V 7.7 AQ 30.0C 6A080 19.2 ICQ XX MAS01I C19.2 mG4x KA3 KPR 5 U9* 0.0 0.9s 0.9 Martin Masek; Comet Alt.:40.6 Calculated mags:7.7,7.8,7.8,7.7,7.7,7.7,7.8
2018Y1 2019 01 31.21 S 7.5 TK 10.3R 7 40 9.4 2/ ICQ XX COLac Mike Collins, Everton
2018Y1 2019 01 31.20 C 8.0 NO 50.0T 7a 50 7.5 6 ICQ XX PAUaaI C dFL9 KA9 CMP 0 P6 24.0d24.0 Nirmal Paul, Slooh, Canary Island (MPC - G40)
2018Y1 2019 01 30.21 V 7.7 AQ 30.0C 6A200 17.4 ICQ XX MAS01I C17.4 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:30.6 Calculated mags:7.7,7.7,7.7,7.8,7.7,7.8,7.7,7.8
2018Y1 2019 01 30.20 k 9.3 AQ 30.0C 6A200 8.4 ICQ XX MAS01I C 8.4 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:30.2 Calculated mags:9.3,9.3,9.3,9.3,9.4,9.4,9.4
2018Y1 2019 01 29.72 S 8.3 TK 10.0B 26 8 3 ICQ XX YOS02 Katsumi Yoshimoto
2018Y1 2019 01 29.70 M 8.7 TJ 10.0B 20 6 3 ICQ XX NAG08 Yoshimi Nagai
2018Y1 2019 01 29.56 S 8.3 TT 10.0B 25 8 4 ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 01 21.73 Z 8.9 AQ 10.6R 5a720 16 LEHaaI C16 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 01 21.25 S 9.3 TK 22.0L 6 60 6 4 ICQ XX GOI Marco Goiato
2018Y1 2019 01 21.22 S 7.3 TK 5.0B 10 15 3 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 21.21 S 9.5 U4 60.0L 4 75 3 1 ICQ XX SZA Sandor Szabo, Agfalva; During total lunar eclipse
2018Y1 2019 01 21.21 S 7.5 TK 10.0B 25 15 3 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 21.20 S 9.6 TK 25.4L 5 64 4 2/ ICQ XX MEY Maik Meyer; during total lunar eclipse
2018Y1 2019 01 21.19 S 8.1 TK 20.3T10 77 12 3/ 0.3 290 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 19.24 M 9.5 TK 20.0T10 50 4 3 ICQ XX LAB02 Carlos Labordena, Benlloch
2018Y1 2019 01 18.22 S 9.0 TI 19.8L 59 5.5 2 ICQ XX HAR11 Christian Harder, Jeersdorf, Germany f; SQM-L: 19.9 mag/arcsec^2, Swanfilter sprach gut an. Nur 15° Höhe
2018Y1 2019 01 17.84 M 10.1 TJ 20.3T10 62 3 3 ICQ XX AIKaa Reijin Aikawa
2018Y1 2019 01 17.82 S 10.2 TJ 32.0L 5 47 2.6 2/ ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 01 17.80 C 10.0 HV 15.0L 3a 60 4.4 ICQ XX HAR10I a 3S 4.4 mCDS CFC MK1 5 2* 8.8 7.1s 7.1 Ken Harikae; B-V of comp. star was +0.300.
2018Y1 2019 01 17.51 C 9.9 AQ 25.0H 3a420 7.7 ICQ XX YOS02I a 15C 7.7 mSTM K32 SI6 5 11.1 1.6s 1.6 Katsumi Yoshimoto; B-V of comp. stars were +0.53, +0.65 and +0.86.
2018Y1 2019 01 16.62 S 9.8 TK 20.0L 6 48 4 3 ICQ XX RAE Stuart Rae, Karamu, New Zealand
2018Y1 2019 01 16.32 V 9.1 AQ 30.0C 6A440 12 ICQ XX MAS01I C12 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:45.6 Calculated mags:9.0,9.0,9.1,9.1,9.1,9.1,9.1,9.0,9.0
2018Y1 2019 01 16.32 k 10.7 AQ 30.0C 6A560 6 ICQ XX MAS01I C 6 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:44.8 Calculated mags:10.7,10.6,10.7,10.6,10.7,10.6,10.6,10.7
2018Y1 2019 01 15.70 S 9.5 TT 10.0B 25 5 4 ICQ XX MAT08 Michael Mattiazzo, Swan Hill, Victoria, Australia
2018Y1 2019 01 15.24 Z 9.8 U4 9.0R 5a872 4.51 ICQ XX JAMaaI C 4.51mCDS CFC CMP 5 7* 2.1s 2.1 Nick James
2018Y1 2019 01 14.80 S 9.6 TK 8.0B 20 5 3 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 01 14.73 Z 9.3 AQ 10.6R 5a360 17 LEHaaI C17 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 01 14.68 xM 10.0 TK 25.0L 5 39 6.4 4 ICQ XX WYA Christopher Wyatt
2018Y1 2019 01 14.26 S 8.2 TK 10.0B 25 10 2 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 14.25 S 8.7 TK 20.3T10 77 8 3 ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 13.85 B 10.4 TJ 20.3T10 62 3 3 ICQ XX AIKaa Reijin Aikawa
2018Y1 2019 01 13.80 S 9.5 TK 8.0B 20 5 3 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 01 13.78 C 10.1 HV 15.0L 3a 60 4.6 ICQ XX HAR10I a 3S 4.6 mCDS CFC MK1 5 2* 8.6 7.1s 7.1 Ken Harikae; B-V of comp. star was +0.501.
2018Y1 2019 01 12.62 xS 9.7 TK 25.0L 5 39 5 3 ICQ XX WYA Christopher Wyatt
2018Y1 2019 01 11.80 S 9.6 TK 8.0B 20 6 2 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 01 11.24 C 11.4 MC 50.0L 3a120 4.6 ICQ XX HILaaI C 0.19mFL9 K32 AFo 5 P5 0.0 1.0s 1.0 Kevin Hills; Multibox data generated using Astrometrica and FoCas, then Kphot used to estimate visual equivalent magnitude as reported above
2018Y1 2019 01 10.72 Z 9.6 AQ 10.6R 5a180 12.9 ICQ XX RAMaa C sFLB KB2 5 U3 0.1 3.5s 3.5 Raymond Ramlow
2018Y1 2019 01 09.84 S 10.7 U4 20.3T10 100 2 4 ICQ XX AIKaa Reijin Aikawa
2018Y1 2019 01 08.75 S 9.9 TK 8.0B 20 5 2 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 01 08.71 Z 10.7 U4 50.0Y 5a719 5 ICQ XX JAMaaI C 5 mFL9 K6F CMP 5 7* 1.1s 1.1 Nick James
2018Y1 2019 01 07.80 M 10.4 TK 40.6L 76 3 4 ICQ XX CAM03 Paul Camilleri
2018Y1 2019 01 07.72 Z 9.9 AQ 10.6R 5a480 15 LEHaaI C15 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2019 01 07.67 xM 10.2 TK 25.0L 5 39 4.5 3/ ICQ XX WYA Christopher Wyatt
2018Y1 2019 01 07.26 S 8.9 TK 20.3T10 77 8 2/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 06.83 S 11.6 TJ 40.0L 4 75 2.4 1 ICQ XX YOS04 Seiichi Yoshida
2018Y1 2019 01 06.20 Z 11.2 MC 50.0L 3a120 3.9 ICQ XX HILaaI C 0.19mFL9 K32 AFo 5 P5 0.1 1.0s 1.0 Kevin Hills; Multibox data generated using Astrometrica and FoCas, then Kphot used to estimate visual equivalent magnitude as reported above
2018Y1 2019 01 04.31 k 11.9 AQ 30.0C 6A440 3 ICQ XX MAS01I C 3 mG4x KA3 KPR 0 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:30.7 Calculated mags:11.9,11.9,11.9,11.8,11.9,11.9,11.9,11.9
2018Y1 2019 01 04.31 V 10.2 AQ 30.0C 6A440 7.8 ICQ XX MAS01I C 7.8 mG4x KA3 KPR 5 U9* 0.0 1.8s 1.8 Martin Masek; Comet Alt.:31.1 Calculated mags:10.2,10.2,10.2,10.2,10.2,10.2,10.2,10.2
2018Y1 2019 01 03.85 S 10.5 TJ 32.0L 5 47 4.2 2 ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 01 03.84 S 10.4 TK 20.3Y 8 41 4.2 3 ICQ XX YOS02 Katsumi Yoshimoto
2018Y1 2019 01 03.77 C 10.8 HV 15.0L 3a 50 3.5 ICQ XX HAR10I a 3S 3.5 mCDS CFC MK1 5 2* 8.5 7.1s 7.1 Ken Harikae; B-V of comp. star was +0.464.
2018Y1 2019 01 03.35 C 11.5 NO 35.0T11a 50 6 ICQ XX PAUaaI C dSTL KA1 AFo 0 P6 27.0d27.0 Nirmal Paul, Slooh, La Dehesa (MPC - W88); Data generated using astrometrica, focas and kphot. Later to produce visual equivalent magnitude.
2018Y1 2019 01 03.23 M 11.2 TK 20.0T10 80 1.2 3 ICQ XX LAB02 Carlos Labordena, Culla
2018Y1 2019 01 02.88 aC 11.1 TJ 18.0H 3a360 3 5 ICQ XX TSU02 1a 3S 5.32mQS6 IC8 SI6 5 10.0 1.3s 1.3 Mitsunori Tsumura; B-V of comp. star was +0.504.
2018Y1 2019 01 02.86 S 10.8 TJ 32.0L 5 47 4.5 2 ICQ XX MIY01 Osamu Miyazaki
2018Y1 2019 01 02.86 C 10.6 AQ 7.2A 3a360 4.2 ICQ XX YOS02I a 60S 4.3 mNDS CAC SI6 5 10.7 5.5s 5.5 Katsumi Yoshimoto; B-V of comp. stars were +0.61, +0.68 and +0.78.
2018Y1 2019 01 02.79 C 10.4 HV 15.0L 3a 60 3.9 ICQ XX HAR10I a 4S 3.9 mCDS CFC MK1 5 2* 8.5 7.1s 7.1 Ken Harikae; B-V of comp. star was +0.464.
2018Y1 2019 01 02.25 S 9.2 TK 20.3T10 77 5 2/ ICQ XX GON05 Juan Jose Gonzalez Suarez
2018Y1 2019 01 01.72 C 10.9 AQ 10.6R 5a180 5 ICQ XX RAMaa C s KB2 5 U3 0.1 3.5s 3.5 Raymond Ramlow
2018Y1 2019 01 01.71 Z 11.5 U4 50.0Y 5a434 3.38 ICQ XX JAMaaI C 3.38mFL9 K6F CMP 5 7* 1.1s 1.1 Nick James
2018Y1 2018 12 31.87 C 11.9 AQ 20.3Y 5a150 3.6 ICQ XX YOS02I a 30C 3.8 mST9 K26 SI6 5 12.7 3.5s 3.5 Katsumi Yoshimoto; B-V of comp. stars were +0.69, +0.70 and +0.82.
2018Y1 2018 12 30.69 xS 11.3 AQ 25.0L 5 83 1.4 2/ ICQ XX WYA Christopher Wyatt
2018Y1 2018 12 30.29 S 10.9:TK 22.0L 6 160 1.5 4 ICQ XX GOI Marco Goiato; Moonlight
2018Y1 2018 12 29.72 Z 10.6 AQ 10.6R 5a720 10 LEHaaI C10 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2018 12 28.87 C 11.6 AQ 7.2A 3a600 3.7 ICQ XX YOS02I a 30C 3.7 mNDS CAC SI6 5 10.4 5.5s 5.5 Katsumi Yoshimoto; B-V of comp. stars were +0.24, +0.37 and +0.54.
2018Y1 2018 12 27.73 Z 10.6 AQ 10.6R 5a600 9.7 LEHaaI C 9.7 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2018 12 27.71 Z 12.2 U4 50.0Y 5a708 2 ICQ XX JAMaaI C 2 mFL9 K6F CMP 5 7* 1.1s 1.1 Nick James
2018Y1 2018 12 25.71 Z 12.5 U4 50.0Y 5a390 1.69 ICQ XX JAMaaI C 1.69mFL9 K6F CMP 5 7* 1.1s 1.1 Nick James
2018Y1 2018 12 23.53 Z 10.7 AQ 10.6R 5a480 9.4 LEHaaI C 9.4 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2018 12 22.73 Z 11.2 AQ 10.6R 5a600 6 LEHaaI C 6 mSTL KA1 AIT 5 3.5s 3.5 Thomas Lehmann
2018Y1 2018 12 22.24 C 12.5 MC 50.0L 3a 60 0.9 ICQ XX HILaaI C 0.19mFL9 K32 AFo 5 P5 0.0 1.0s 1.0 Kevin Hills; Multibox data generated using Astrometrica and FoCas, then Kphot used to estimate visual equivalent magnitude as reported above
2018Y1 2018 12 20.87 aC 13.2 AQ 20.3Y 5a330 1.5 ICQ XX YOS02I a 15S 1.5 mST9 K26 SI6 5 13.1 3.4s 3.4 Katsumi Yoshimoto; B-V of comp. stars were +0.56, +0.59 and +0.65.