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Comets

Browse and discover detailed information about 211 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 K5 (PANSTARRS)

C/2020 K5 (PANSTARRS)
R.A: 05h 16m 04s   Dec: +20° 48’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
R.A: 06h 06m 11s   Dec: +20° 03’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  brightening
in Orion   current altitude less than 30 degrees above the horizon

Comet 7P/Pons-Winnecke

7P/Pons-Winnecke
R.A: 03h 00m 16s   Dec: +02° 01’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet 185P/Petriew

185P/Petriew
R.A: 16h 38m 28s   Dec: -11° 56’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet 126P/IRAS

126P/IRAS
R.A: 13h 05m 22s   Dec: -62° 40’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL)  brightening
in Centaurus   object currently below the horizon

Comet 78P/Gehrels 2

78P/Gehrels 2
R.A: 13h 43m 32s   Dec: -10° 23’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  fading
in Virgo   object currently below the horizon

Comet C/2020 N1 (PANSTARRS)

C/2020 N1 (PANSTARRS)
R.A: 14h 24m 16s   Dec: -44° 44’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  fading
in Lupus   object currently below the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 19h 17m 56s   Dec: -15° 12’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Sagittarius   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 08h 26m 45s   Dec: +29° 57’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  fading
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2021 K1 (ATLAS)

C/2021 K1 (ATLAS)
R.A: 03h 30m 39s   Dec: +05° 26’ 40”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 23h 11m 04s   Dec: -10° 12’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 15P/Finlay

15P/Finlay
R.A: 08h 13m 29s   Dec: +25° 18’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL)  fading
in Cancer   current altitude less than 30 degrees above the horizon

Comet 96P/Machholz 1

96P/Machholz 1
R.A: 21h 09m 14s   Dec: -44° 05’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL)  brightening
in Microscopium   object currently below the horizon

Comet C/2021 A2

C/2021 A2
R.A: 22h 17m 23s   Dec: +63° 18’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL)  fading
in Cepheus   current altitude greater than 30 degrees above the horizon

Comet 6P/d'Arrest

6P/d'Arrest
R.A: 04h 18m 45s   Dec: +07° 32’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 12P/Pons-Brooks

12P/Pons-Brooks
R.A: 18h 38m 25s   Dec: +31° 08’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL)  brightening
in Lyra   current altitude less than 30 degrees above the horizon

Comet 150P/LONEOS

150P/LONEOS
R.A: 01h 04m 04s   Dec: +23° 26’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL) 
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 193P/LINEAR-NEAT

193P/LINEAR-NEAT
R.A: 03h 48m 45s   Dec: +28° 05’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

2014 UN271

16P/Brooks 2
R.A: 08h 15m 11s   Dec: +19° 43’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  fading
in Cancer   object currently below the horizon

Comet 46P/Wirtanen

46P/Wirtanen
R.A: 18h 43m 38s   Dec: -25° 23’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.7 (JPL)  brightening
in Sagittarius   object currently below the horizon
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