Comet C/2020 M3 (ATLAS)
Comet C/2020 M3 (ATLAS), obtained on 2020 Nov. 21 (21h49-22h22UT) with 19-cm, f/4 Flat Field Camera and astro modified Canon EOS 700D DSLR. Exposure time was 30x60 seconds at ISO 3200.
Copyright © 2020 by H. Mikuz, Črni Vrh Observatory.
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Light-curve of C/2020 S3 (Erasmus) (Mar 05, 2021).
| Type | Comet name | Obs date | Mag | App | T | Pow | Dia | DC | Tail | PA | Obs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| V | C/2020 T2 | 2021 03 04.95 | 13.4 | 53.1 | L | 215 | 0.8 | s3/ | HAR11 | ||
| V | C/2021 A2 | 2021 03 04.93 | 13.8 | 53.1 | L | 215 | 0.8 | 1 | HAR11 | ||
| V | 156P | 2021 03 04.92 | 13.8 | 53.1 | L | 215 | 0.5 | 2/ | HAR11 | ||
| V | 141P | 2021 03 04.91 | 14.0 | 53.1 | L | 215 | 0.25 | s4 | HAR11 | ||
| V | C/2019 L3 | 2021 03 04.91 | 13.0 | 53.1 | L | 215 | 0.8 | 4 | HAR11 | ||
| V | 141P | 2021 03 04.89 | 13.5 | 30.5 | L | 188 | 0.7 | 1/ | KAR02 | ||
| V | C/2019 L3 | 2021 03 04.87 | 12.8 | 30.5 | L | 188 | 0.6 | 4 | KAR02 | ||
| C | 141P | 2021 03 03.87 | 13.7 | 25.0 | T | A440 | 1 | 0.6m | 63 | MAS01 | |
| C | 141P | 2021 03 03.87 | 12.9 | 25.0 | T | A440 | 2 | MAS01 | |||
| C | C/2021 A4 | 2021 03 03.78 | 12.8 | 5.4 | A | a900 | 1.8 | PAR03 | |||
| C | C/2021 A4 | 2021 03 03.78 | 12.5 | 5.4 | A | a900 | 2.2 | PAR03 | |||
| C | C/2021 A2 | 2021 03 02.95 | 13.2 | 10.0 | R | A800 | 0.5 | DEK01 | |||
| C | C/2021 A4 | 2021 03 02.92 | 14.7 | 10.0 | R | a930 | 0.5 | DEK01 | |||
| C | 11P | 2021 03 02.89 | 14.2: | 54.0 | L | a 1 | 1 | 2 | KUT | ||
| C | C/2021 A2 | 2021 03 02.85 | 13.7 | 54.0 | L | a 1 | 1.2 | 5 | KUT | ||
| V | 156P | 2021 03 02.81 | 14.1 | 53.1 | L | 215 | 0.6 | 2/ | HAR11 | ||
| C | C/2019 L3 | 2021 03 02.81 | 11.7 | 10.0 | R | B100 | 1 | DEK01 | |||
| V | 156P | 2021 03 02.80 | 13.0 | 25.4 | L | 150 | 1.1 | 3 | MEY | ||
| V | C/2021 A4 | 2021 03 02.80 | 12.4 | 53.1 | L | 155 | 1.6 | 2 | HAR11 | ||
| V | C/2019 L3 | 2021 03 02.80 | 13.0 | 53.1 | L | 155 | 0.6 | 4 | HAR11 |
| Comet name | Mag | Trend | Observable | Visiblity 45N |
Visiblity 45S |
|---|---|---|---|---|---|
| 10P/Tempel | 10.5 | bright | 75N to 90S | Early evening | Early evening |
| 7P/Pons-Winnecke | 11.0 | bright | 90N to 80S | Best morning | Early evening |
| C/2020 X3 (SOHO) | 12.5 | fade | 68N to 90S | Evening | Best evening |
| 246P/NEAT | 13.0 | bright | 67N to 90S | Early evening | Best morning |
| C/2019 L3 (ATLAS) | 13.0 | bright | 90N to 38S | All night | Never up |
| C/2019 N1 (ATLAS) | 13.0 | fade | 5N to 90S | Never up | Never up |
| C/2021 D1 (SWAN) | 13.5 | steady | 90N to 73S | Evening | Early evening |
| 28P/Neujmin | 13.5 | steady | 79N to 90S | Poor elongation | Poor elongation |
| C/2021 A2 (NEOWISE) | 13.5 | fade | 90N to 51S | Best evening | Early evening |
| 156P/Russell-LINEAR | 13.5 | fade | 90N to 49S | Best evening | Early evening |
| C/2020 T2 (Palomar) | 13.5 | bright | 90N to 58S | Best morning | Best morning |
| P/2013 PA104 (PANSTARRS) | 13.5 | fade | 84N to 90S | Best evening | Best evening |
| C/2019 F1 (ATLAS-Africano) | 14.0 | bright | 30N to 90S | Never up | Never up |
| C/2021 A4 (NEOWISE) | 14.0 | fade | 90N to 81S | Best evening | Evening |
| 29P/Schwassmann-Wachmann | 14.0 | steady | 90N to 66S | Evening | Early evening |
| 141P/Machholz | 14.0 | fade | 90N to 86S | Best evening | Best evening |
The observable region is an approximate indication of the latitude at which the comet may be seen. The period when visible is calculated for latitude 45°N and 45°S.
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Scientists have put forth a new theory that could explain the origin and journey of the comet that killed the Chicxulub impactor and others like it.
CBET 4929 & MPEC 2021-C16, issued on 2021, February 04, announce the discovery of a comet (magnitude ~19) in infrared images obtained during Jan. 22 UT with the Near-Earth Object Wide-field Infrared Survey Explorer (or NEOWISE; formerly the WISE earth-orbiting satellite). The new comet has been designated C/2021 B3 (NEOWISE).
CBET 4907 & MPEC 2021-A99, issued on 2021, January 10, announce the discovery of a comet (magnitude ~19.5) by Gregory J. Leonard on CCD images taken on Jan. 3.54-3.56 UT with the Mount Lemmon Survey's 1.5-m reflector. The new comet has been designated C/2021 A1 (Leonard).
