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Comets

Browse and discover detailed information about 144 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 240P/NEAT

240P/NEAT
R.A: 11h 02m 21s   Dec: +42° 44’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  fading
in Ursa Major   current altitude less than 30 degrees above the horizon

Comet 48P/Johnson

48P/Johnson
R.A: 01h 27m 03s   Dec: -01° 04’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.9 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet C/2018 R3 (Lemmon)

C/2018 R3 (Lemmon)
R.A: 22h 02m 23s   Dec: +15° 06’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.0 (JPL)  brightening
in Pegasus   current altitude greater than 30 degrees above the horizon

Comet C/2018 X2 (Fitzsimmons)

C/2018 X2 (Fitzsimmons)
R.A: 04h 06m 06s   Dec: +45° 26’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.1 (JPL)  brightening
in Perseus   current altitude greater than 30 degrees above the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 06h 11m 05s   Dec: -19° 38’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.4 (JPL)  fading
in Lepus   object currently below the horizon

Comet C/2018 F4 (PANSTARRS)

C/2018 F4 (PANSTARRS)
R.A: 14h 11m 10s   Dec: -47° 43’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.5 (JPL)  brightening
in Centaurus   object currently below the horizon

Comet 74P/Smirnova-Chernykh

74P/Smirnova-Chernykh
R.A: 15h 51m 06s   Dec: -16° 11’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.5 (JPL)  brightening
in Libra   object currently below the horizon

Comet C/2017 T3 (ATLAS)

C/2017 T3 (ATLAS)
R.A: 16h 28m 12s   Dec: -13° 54’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.5 (JPL)  fading
in Ophiucus   object currently below the horizon

Comet C/2016 A1 (PANSTARRS)

C/2016 A1 (PANSTARRS)
R.A: 04h 18m 51s   Dec: +70° 05’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.6 (JPL)  fading
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Comet C/2019 B1 (Africano)

C/2019 B1 (Africano)
R.A: 05h 40m 52s   Dec: +53° 22’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL)  fading
in Auriga   current altitude greater than 30 degrees above the horizon

Comet C/2018 F1 (Grauer)

C/2018 F1 (Grauer)
R.A: 18h 56m 39s   Dec: +16° 54’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL) 
in Hercules   current altitude greater than 30 degrees above the horizon

Comet C/2017 K2 (PANSTARRS)

C/2017 K2 (PANSTARRS)
R.A: 18h 09m 33s   Dec: +53° 17’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  brightening
in Draco   current altitude greater than 30 degrees above the horizon

Comet 65P/Gunn

65P/Gunn
R.A: 00h 14m 01s   Dec: -05° 03’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL)  fading
in Pisces   current altitude less than 30 degrees above the horizon

Comet C/2015 V2 (Johnson)

C/2015 V2 (Johnson)
R.A: 01h 14m 49s   Dec: -38° 41’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL) 
in Sculptor   object currently below the horizon

Comet C/2016 N4 (MASTER)

C/2016 N4 (MASTER)
R.A: 12h 26m 26s   Dec: +48° 33’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL)  fading
in Canes Venatici   current altitude less than 30 degrees above the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 14h 34m 43s   Dec: +10° 37’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL)  fading
in Bootes   object currently below the horizon

Comet C/2018 E1 (ATLAS)

C/2018 E1 (ATLAS)
R.A: 10h 25m 58s   Dec: +25° 03’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.9 (JPL)  fading
in Leo   object currently below the horizon

Comet 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 07h 54m 28s   Dec: +30° 15’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL) 
in Gemini   object currently below the horizon

Comet C/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 18h 14m 18s   Dec: -28° 46’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet 25D/Neujmin 2

25D/Neujmin 2
R.A: 02h 27m 43s   Dec: +19° 10’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL)  brightening
in Aries   current altitude greater than 30 degrees above the horizon
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