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Comets

Browse and discover detailed information about 171 of the most interesting comets. Comets are listed in order of decreasing brightness.

Search Comets:
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/2019 T4 (ATLAS)

C/2019 T4
R.A: 06h 34m 06s   Dec: -35° 24’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL) 
in Columba   object currently below the horizon

Comet C/2016 Q2 (PANSTARRS)

C/2016 Q2 (PANSTARRS)
R.A: 19h 19m 42s   Dec: +19° 46’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.2 (JPL) 
in Sagitta   current altitude less than 30 degrees above the horizon

Comet C/2019 E3 (ATLAS)

C/2019 E3 (ATLAS)
R.A: 10h 25m 57s   Dec: -42° 50’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.2 (JPL) 
in Vela   object currently below the horizon

Comet C/2019 K4

C/2019 K4
R.A: 22h 57m 15s   Dec: -26° 30’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.3 (JPL)  fading
in Pisces Austrinus   object currently below the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 22h 40m 15s   Dec: -10° 34’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL)  brightening
in Aquarius   object currently below the horizon

Comet 354P/LINEAR

354P/LINEAR
R.A: 00h 59m 42s   Dec: +14° 50’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL)  fading
in Pisces   object currently below the horizon

Comet Encke (2P/Encke)

Encke's Comet
R.A: 22h 50m 32s   Dec: -00° 34’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.5 (JPL) 
in Aquarius   object currently below the horizon

Comet C/2018 L2 (ATLAS)

C/2018 L2 (ATLAS)
R.A: 02h 38m 37s   Dec: +38° 08’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.5 (JPL)  fading
in Perseus   current altitude less than 30 degrees above the horizon

Comet 240P/NEAT

240P/NEAT
R.A: 14h 01m 22s   Dec: +07° 24’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL) 
in Bootes   current altitude greater than 30 degrees above the horizon

Comet 297P/Beshore (2008 J2)

297P/Beshore (2008 J2)
R.A: 10h 01m 43s   Dec: +18° 59’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.7 (JPL)  brightening
in Leo   current altitude greater than 30 degrees above the horizon

Comet 28P/Neujmin 1

28P/Neujmin 1
R.A: 14h 16m 14s   Dec: -23° 05’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  brightening
in Hydra   current altitude less than 30 degrees above the horizon

Comet C/2015 V2 (Johnson)

C/2015 V2 (Johnson)
R.A: 01h 49m 50s   Dec: -38° 52’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  fading
in Fornax   object currently below the horizon

5D/Brorsen (Lost)

5D/Brorsen (Lost)
R.A: 19h 09m 13s   Dec: -26° 47’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.9 (JPL) 
in Sagittarius   object currently below the horizon

Comet 123P/West-Hartley

123P/West-Hartley
R.A: 16h 02m 47s   Dec: -23° 17’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.0 (JPL)  fading
in Scorpius   current altitude less than 30 degrees above the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 19h 47m 01s   Dec: -25° 51’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.2 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet 168P/Hergenrother

168P/Hergenrother
R.A: 07h 10m 33s   Dec: +62° 35’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.2 (JPL)  fading
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Comet C/2016 N4 (MASTER)

C/2016 N4 (MASTER)
R.A: 12h 17m 56s   Dec: +23° 27’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.3 (JPL) 
in Coma   current altitude greater than 30 degrees above the horizon

Comet C/2013 YG46 (Spacewatch)

C/2013 YG46 (Spacewatch)
R.A: 07h 57m 43s   Dec: +29° 01’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  brightening
in Gemini   current altitude greater than 30 degrees above the horizon

Comet 17P/Holmes

17P/Holmes
R.A: 15h 50m 32s   Dec: -35° 31’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  brightening
in Lupus   object currently below the horizon

Comet C/2019 J2 (Palomar)

C/2019 J2
R.A: 14h 52m 54s   Dec: -05° 51’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon
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