Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]
If you find this website useful please consider a small donation that will help covering hosting costs. Thank you!

Comets

Browse and discover detailed information about 203 of the most interesting comets. Comets are listed in order of decreasing brightness.

Visibility from selected location  = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet C/2020 S3 (Erasmus)

Comet C/2020 S3
Comet C/2020 S3 is brighter than mag 10
R.A: 15h 20m 33s   Dec: -23° 37’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 7.7 (JPL)  brightening
in Libra   object currently below the horizon

Comet C/2020 M3 (ATLAS)

C/2020 M3 (ATLAS)
C/2020 M3 (ATLAS) is brighter than mag 10
R.A: 05h 22m 33s   Dec: +30° 37’ 29”
Observed Magnitude 8.2 (COBS)
Estimated Magnitude 13.9 (JPL)  fading
in Auriga   current altitude greater than 30 degrees above the horizon

Comet 88P/Howell

88P/Howell
R.A: 20h 56m 52s   Dec: -20° 55’ 27”
Observed Magnitude 10.4 (COBS)
Estimated Magnitude 15.3 (JPL)  fading
in Capricornus   object currently below the horizon

Comet 11P/Tempel-Swift-LINEAR

11P/Tempel-Swift-LINEAR
R.A: 01h 05m 22s   Dec: +09° 59’ 57”
Observed Magnitude 13.1 (COBS)
Estimated Magnitude 17.5 (JPL)  fading
in Pisces   current altitude less than 30 degrees above the horizon

Comet C/2019 N1 (ATLAS)

C/2019 N1 (ATLAS)
R.A: 14h 02m 15s   Dec: -24° 39’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.9 (JPL)  brightening
in Hydra   object currently below the horizon

Comet C/2019 L3 (ATLAS)

C/2019 L3 (ATLAS)
R.A: 23h 55m 56s   Dec: +60° 26’ 40”
Observed Magnitude 14.2 (COBS)
Estimated Magnitude 15.1 (JPL)  brightening
in Cassiopeia   current altitude greater than 30 degrees above the horizon

Comet C/2018 N2 (ASASSN)

C/2018 N2 (ASASSN)
R.A: 15h 58m 56s   Dec: +59° 53’ 07”
Observed Magnitude 14.7 (COBS)
Estimated Magnitude 16.1 (JPL) 
in Draco   current altitude less than 30 degrees above the horizon

Comet C/2017 K2 (PANSTARRS)

C/2017 K2 (PANSTARRS)
R.A: 17h 36m 43s   Dec: +36° 03’ 54”
Observed Magnitude 15.0 (COBS)
Estimated Magnitude 15.8 (JPL)  brightening
in Hercules   object currently below the horizon

Comet C/2020 F5 (MASTER)

C/2020 F5 (MASTER)
R.A: 19h 51m 32s   Dec: -60° 57’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.5 (JPL) 
in Pavo   object currently below the horizon

Comet C/2017 T2 (PANSTARRS)

C/2017 T2 (PANSTARRS)
R.A: 16h 21m 03s   Dec: -22° 18’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.5 (JPL)  fading
in Scorpius   object currently below the horizon

Comet 29P/Schwassmann-Wachmann 1

29P/Schwassmann-Wachmann 1
R.A: 02h 19m 02s   Dec: +25° 27’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.6 (JPL) 
in Aries   current altitude greater than 30 degrees above the horizon

Comet C/2020 J1 (SONEAR)

C/2020 J1 (SONEAR)
R.A: 17h 29m 01s   Dec: -44° 23’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.6 (JPL)  brightening
in Scorpius   object currently below the horizon

Comet SWAN (C/2020 F8)

C/2020 F8 (SWAN)
R.A: 04h 47m 07s   Dec: -11° 21’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.9 (JPL)  fading
in Eridanus   current altitude less than 30 degrees above the horizon

Comet C/2019 F1 (ATLAS-Africano)

C/2019 F1 (ATLAS-Africano)
R.A: 15h 41m 32s   Dec: -41° 43’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.9 (JPL)  brightening
in Lupus   object currently below the horizon

Comet C/2020 N1 (PANSTARRS)

C/2020 N1 (PANSTARRS)
R.A: 23h 31m 05s   Dec: +40° 05’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.9 (JPL)  brightening
in Andromeda   current altitude less than 30 degrees above the horizon

Comet 17P/Holmes

17P/Holmes
R.A: 20h 20m 02s   Dec: -20° 45’ 38”
Observed Magnitude 17.0 (COBS)
Estimated Magnitude 16.2 (JPL) 
in Capricornus   object currently below the horizon

Comet C/2019 T4 (ATLAS)

C/2019 T4 (ATLAS)
R.A: 08h 32m 48s   Dec: -38° 23’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.5 (JPL)  brightening
in Vela   object currently below the horizon

Comet P/2010 H2 (Vales)

P/2010 H2 (Vales)
R.A: 23h 19m 39s   Dec: -19° 06’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL) 
in Aquarius   object currently below the horizon

Comet C/2019 K7 (Smith)

C/2019 K7 (Smith)
R.A: 18h 38m 33s   Dec: +19° 55’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  fading
in Hercules   object currently below the horizon

Comet 28P/Neujmin 1

28P/Neujmin 1
R.A: 18h 03m 46s   Dec: -32° 23’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.8 (JPL) 
in Sagittarius   object currently below the horizon
  1     2     3     4     5     6     7     8     9     10     11   >
Next