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

Comets

Browse and discover detailed information about 191 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 116P/Wild 4

116P/Wild 4
R.A: 04h 16m 26s   Dec: +23° 09’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Taurus   current altitude greater than 30 degrees above the horizon

Comet 123P/West-Hartley

123P/West-Hartley
R.A: 17h 07m 11s   Dec: -35° 57’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Scorpius   object currently below the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 17h 53m 02s   Dec: -38° 52’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Scorpius   object currently below the horizon

Comet 25D/Neujmin 2

25D/Neujmin 2
R.A: 19h 09m 23s   Dec: -24° 11’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Sagittarius   object currently below the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 19h 51m 34s   Dec: -21° 02’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Sagittarius   object currently below the horizon

Comet 32P/Comas Sola

32P/Comas Sola
R.A: 20h 30m 25s   Dec: -30° 00’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Microscopium   object currently below the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 15h 57m 09s   Dec: -04° 27’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Libra   object currently below the horizon

Comet 77P/Longmore

77P/Longmore
R.A: 03h 50m 36s   Dec: +34° 42’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Perseus   current altitude greater than 30 degrees above the horizon

Comet 81P/Wild 2

81P/Wild 2
R.A: 01h 42m 30s   Dec: +07° 22’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 9P/Tempel 1

9P/Tempel 1
R.A: 07h 17m 01s   Dec: +26° 52’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Gemini   current altitude less than 30 degrees above the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 44m 01s   Dec: -17° 17’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Capricornus   current altitude less than 30 degrees above the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 52m 07s   Dec: +39° 28’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Perseus   current altitude greater than 30 degrees above the horizon

Comet C/2017 T3 (ATLAS)

C/2017 T3 (ATLAS)
R.A: 15h 18m 40s   Dec: +13° 12’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Serpens   object currently below the horizon

Comet C/2018 X2 (Fitzsimmons)

C/2018 X2 (Fitzsimmons)
R.A: 14h 12m 40s   Dec: -37° 51’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Centaurus   object currently below the horizon

Comet C/2019 J3 (ATLAS)

C/2019 J3 (ATLAS)
R.A: 11h 41m 09s   Dec: +45° 35’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Ursa Major   current altitude less than 30 degrees above the horizon

Comet C/2019 K4

C/2019 K4
R.A: 01h 58m 45s   Dec: -55° 39’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Eridanus   object currently below the horizon

Comet C/2019 K5 (Young)

C/2019 K5 (Young)
R.A: 06h 35m 56s   Dec: +10° 00’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Monoceros   current altitude less than 30 degrees above the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 03h 34m 44s   Dec: +18° 32’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Taurus   current altitude greater than 30 degrees above the horizon

Comet P/2017 S5 (ATLAS)

P/2017 S5 (ATLAS)
R.A: 11h 13m 03s   Dec: -05° 20’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Leo   object currently below the horizon

Comet 14P/Wolf

14P/Wolf
R.A: 09h 18m 34s   Dec: -05° 20’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.0 (JPL) 
in Hydra   object currently below the horizon
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