Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 199 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/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 16h 04m 41s   Dec: +05° 37’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL)  fading
in Serpens   current altitude less than 30 degrees above the horizon

Comet 116P/Wild 4

116P/Wild 4
R.A: 04h 30m 55s   Dec: +24° 52’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL)  brightening
in Taurus   current altitude less than 30 degrees above the horizon

Comet 81P/Wild 2

81P/Wild 2
R.A: 01h 08m 31s   Dec: +03° 20’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL) 
in Pisces   object currently below the horizon

Comet C/2018 Y1 (Iwamoto)

C/2018 Y1 (Iwamoto)
R.A: 00h 27m 35s   Dec: +22° 23’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL)  fading
in Andromeda   object currently below the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 03h 32m 47s   Dec: +17° 26’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL) 
in Taurus   object currently below the horizon

Comet 77P/Longmore

77P/Longmore
R.A: 03h 45m 59s   Dec: +41° 22’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  brightening
in Perseus   current altitude less than 30 degrees above the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 18h 09m 11s   Dec: -37° 32’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL)  brightening
in Corona Australis   object currently below the horizon

Comet C/2020 H3 (Wierzchos)

C/2020 H3 (Wierzchos)
R.A: 18h 55m 01s   Dec: +43° 04’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL)  fading
in Lyra   current altitude less than 30 degrees above the horizon

Comet C/2019 J2 (Palomar)

C/2019 J2 (Palomar)
R.A: 12h 31m 31s   Dec: -30° 17’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  fading
in Hydra   current altitude less than 30 degrees above the horizon

Comet C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov)
R.A: 15h 36m 06s   Dec: -55° 39’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  fading
in Norma   object currently below the horizon

Comet 6P/d'Arrest

6P/d'Arrest
R.A: 13h 24m 12s   Dec: +04° 30’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  brightening
in Virgo   current altitude greater than 30 degrees above the horizon

Comet P/2017 S5 (ATLAS)

P/2017 S5 (ATLAS)
R.A: 12h 33m 56s   Dec: -13° 12’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Corvus   current altitude less than 30 degrees above the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 28m 22s   Dec: -18° 10’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Capricornus   object currently below the horizon

Comet C/2019 J3 (ATLAS)

C/2019 J3 (ATLAS)
R.A: 12h 15m 30s   Dec: +43° 25’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Canes Venatici   current altitude greater than 30 degrees above the horizon

Comet P/2019 Y2 (Fuls)

P/2019 Y2 (Fuls)
R.A: 16h 13m 05s   Dec: -20° 49’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL)  fading
in Scorpius   object currently below the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 16h 32m 41s   Dec: -09° 56’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 33m 41s   Dec: +39° 42’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL) 
in Andromeda   current altitude less than 30 degrees above the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 14h 38m 56s   Dec: -09° 12’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet C/2015 ER61 (PANSTARRS)

C/2015 ER61 (PANSTARRS)
R.A: 06h 13m 22s   Dec: +19° 41’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL) 
in Orion   current altitude less than 30 degrees above the horizon

Comet 114P/Wiseman-Skiff

114P/Wiseman-Skiff
R.A: 12h 44m 35s   Dec: -19° 38’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  fading
in Corvus   current altitude less than 30 degrees above the horizon
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