Comet C/2020 F3 (NEOWISE)
Comet C/2020 F3 (NEOWISE) obtained on 2020 July 27 (21h10-21h25UT) with 300 mm, f/4.7 lens and Canon EOS 6D DSLR. Exposure time was 15x60 seconds at ISO 1600.
Copyright © 2020 by H. Mikuz, Črni Vrh Observatory.
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Light-curve of C/2020 S3 (Erasmus) (Nov 28, 2020).
| Type | Comet name | Obs date | Mag | App | T | Pow | Dia | DC | Tail | PA | Obs |
|---|---|---|---|---|---|---|---|---|---|---|---|
| V | C/2020 S3 | 2020 11 27.91 | 7.3: | 8.0 | B | 20 | GUOaa | ||||
| V | C/2020 S3 | 2020 11 27.28 | 7.1 | 10.0 | B | 25 | 6 | 6 | DES01 | ||
| C | 220P | 2020 11 26.77 | 19.7 | 50.0 | C | a 60 | PAP04 | ||||
| V | C/2020 S3 | 2020 11 26.73 | 7.1 | 10.0 | B | 25 | 3 | 7 | MAT08 | ||
| V | C/2020 S3 | 2020 11 26.53 | 7.1 | 5.0 | B | 10 | 5 | 7 | HER02 | ||
| V | C/2020 M3 | 2020 11 26.52 | 8.0 | 5.0 | B | 10 | 10 | 2 | HER02 | ||
| V | C/2020 S3 | 2020 11 26.30 | 7.1 | 7.0 | B | 15 | 4 | 5 | SOU01 | ||
| V | C/2020 S3 | 2020 11 26.29 | 7.1 | 15.0 | L | 38 | 4 | 5 | SOU01 | ||
| V | C/2020 S3 | 2020 11 26.28 | 7.1 | 10.0 | B | 25 | 7 | 5/ | DES01 | ||
| V | C/2020 S3 | 2020 11 26.14 | 7.0 | 15.0 | L | 23 | 3.5 | 6 | NOV01 | ||
| C | P/2013 TL117 | 2020 11 26.13 | 18.0 | 50.0 | C | a 60 | 0.2 | PAP04 | |||
| C | 99P | 2020 11 26.13 | 18.5 | 50.0 | C | a 60 | 0.3 | PAP04 | |||
| C | P/2005 XA54 | 2020 11 26.12 | 17.2 | 50.0 | C | a 60 | 0.5 | PAP04 | |||
| V | C/2020 M3 | 2020 11 26.12 | 8.5: | 27.0 | L | 90 | DES01 | ||||
| V | C/2020 M3 | 2020 11 26.08 | 8.6 | 19.0 | L | 73 | 6 | 3 | KWI | ||
| C | 191P | 2020 11 25.78 | 18.5 | 50.0 | C | a 60 | PAP04 | ||||
| V | C/2020 S3 | 2020 11 25.30 | 7.1 | 7.0 | B | 15 | 5 | 6 | SOU01 | ||
| V | C/2020 S3 | 2020 11 25.30 | 7.0 | 10.0 | B | 20 | 4 | 7 | 0.2 | 270 | GOI |
| V | C/2020 S3 | 2020 11 25.29 | 7.1 | 15.0 | L | 42 | 5 | 6 | SOU01 | ||
| V | C/2020 S3 | 2020 11 25.28 | 7.2 | 10.0 | B | 25 | 7 | 4 | DES01 |
| Comet name | Mag | Trend | Observable | Visiblity 45N |
Visiblity 45S |
|---|---|---|---|---|---|
| C/2020 S3 (Erasmus) | 6.5 | bright | 67N to 90S | Early evening | Early evening |
| 141P-B/Machholz | 6.5 | fade | 74N to 90S | Early evening | Early evening |
| C/2020 M3 (ATLAS) | 8.5 | fade | 90N to 68S | Best morning | Best morning |
| 141P-A/Machholz | 9.0 | fade | 80N to 90S | Early evening | Early evening |
| 141P-D/Machholz | 9.5 | fade | 80N to 90S | Early evening | Early evening |
| 141P/Machholz | 10.0 | bright | 80N to 90S | Evening | Evening |
| 88P/Howell | 10.0 | fade | 67N to 90S | Evening | Evening |
| 156P/Russell-LINEAR | 10.5 | fade | 90N to 84S | Best evening | Best evening |
| C/2019 Y4 (ATLAS) | 12.0 | steady | 81N to 90S | Best morning | Best morning |
| D/1978 R1 (Haneda-Campos) | 12.5 | fade | 90N to 77S | Best morning | Best morning |
| C/2019 N1 (ATLAS) | 12.5 | bright | 70N to 90S | Early evening | Early evening |
| C/2017 T2 (PANSTARRS) | 13.0 | fade | 69N to 90S | Poor elongation | Poor elongation |
| 398P/Boattini | 13.0 | bright | 77N to 90S | Best morning | Best morning |
| 162P/Siding Spring | 13.0 | steady | 72N to 90S | Evening | Best evening |
| 29P/Schwassmann-Wachmann | 13.0 | steady | 90N to 64S | Best evening | Best evening |
| 75D/Kohoutek | 13.5 | bright | 90N to 67S | Best evening | Best evening |
| P/2013 PA104 (PANSTARRS) | 13.5 | fade | 84N to 90S | Best evening | Best evening |
| 246P/NEAT | 14.0 | steady | 75N to 90S | Poor elongation | Poor elongation |
| 141P-H/Machholz | 14.0 | steady | 68N to 90S | Poor elongation | Poor elongation |
| C/2019 L3 (ATLAS) | 14.0 | bright | 90N to 28S | All night | Never up |
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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CBET 4885 & MPEC 2020-S119, issued on 2020, September 20, announce the discovery of a comet (magnitude ~18.5) by Nicolas Erasmus (South African Astronomical Observatory), in four 30-s CCD images taken in 5" seeing on Sept. 17.6 UT with a 0.5-m f/2 Schmidt reflector at Mauna Loa, Hawaii, in the course of the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program. The new comet has been designated C/2020 S3 (Erasmus).
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