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Comets

Browse and discover detailed information about 140 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 46P/Wirtanen

46P/Wirtanen
46P/Wirtanen is visible to the naked eye
R.A: 03h 48m 47s   Dec: +17° 04’ 10”
Observed Magnitude 4.5 (COBS)
Estimated Magnitude 9.5 (JPL)  brightening
in Taurus   current altitude less than 30 degrees above the horizon

Comet 64P/Swift-Gehrels

64P/Swift-Gehrels
64P/Swift-Gehrels is brighter than mag 10
R.A: 02h 16m 13s   Dec: +32° 21’ 20”
Observed Magnitude 9.0 (COBS)
Estimated Magnitude 14.8 (JPL)  fading
in Triangulum   current altitude less than 30 degrees above the horizon

Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto)

C/2018 V1 (Machholz-Fujikawa-Iwamoto)
C/2018 V1 (Machholz-Fujikawa-Iwamoto) is brighter than mag 10
R.A: 19h 02m 14s   Dec: -14° 38’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 10.0 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 38P/Stephan-Oterma

38P/Stephan-Oterma
R.A: 08h 26m 19s   Dec: +34° 18’ 22”
Observed Magnitude 10.2 (COBS)
Estimated Magnitude 10.7 (JPL)  fading
in Lynx   current altitude greater than 30 degrees above the horizon

Comet 78P/Gehrels 2

78P/Gehrels 2
R.A: 22h 24m 24s   Dec: -06° 44’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.1 (JPL) 
in Aquarius   object currently below the horizon

Comet C/2016 N6 (PANSTARRS)

C/2016 N6 (PANSTARRS)
R.A: 07h 58m 03s   Dec: -13° 25’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.4 (JPL)  fading
in Puppis   current altitude less than 30 degrees above the horizon

Comet C/2016 M1 (PANSTARRS)

C/2016 M1 (PANSTARRS)
R.A: 16h 39m 55s   Dec: -81° 53’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.5 (JPL)  fading
in Apus   object currently below the horizon

Comet C/2018 L2 (ATLAS)

C/2018 L2 (ATLAS)
R.A: 18h 06m 19s   Dec: +13° 13’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.0 (JPL) 
in Ophiucus   object currently below the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 06h 47m 21s   Dec: -39° 36’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.8 (JPL)  fading
in Puppis   object currently below the horizon

Comet C/2018 N2 (ASASSN)

C/2018 N2 (ASASSN)
R.A: 01h 11m 09s   Dec: -38° 27’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.9 (JPL)  brightening
in Sculptor   object currently below the horizon

Comet 29P/Schwassmann-Wachmann 1

29P/Schwassmann-Wachmann 1
R.A: 22h 51m 38s   Dec: -00° 36’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.1 (JPL) 
in Pisces   object currently below the horizon

Comet C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 15h 00m 02s   Dec: +40° 35’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.1 (JPL)  fading
in Bootes   current altitude greater than 30 degrees above the horizon

Comet 48P/Johnson

48P/Johnson
R.A: 23h 36m 59s   Dec: -16° 41’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.3 (JPL)  fading
in Aquarius   object currently below the horizon

Comet C/2018 A3 (ATLAS)

C/2018 A3 (ATLAS)
R.A: 11h 03m 43s   Dec: +61° 06’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.3 (JPL)  brightening
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet C/2017 M4 (ATLAS)

C/2017 M4 (ATLAS)
R.A: 16h 59m 01s   Dec: -07° 24’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.4 (JPL) 
in Ophiucus   object currently below the horizon

Comet C/2017 B3 (LINEAR)

C/2017 B3 (LINEAR)
R.A: 18h 48m 38s   Dec: -67° 19’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.7 (JPL) 
in Pavo   object currently below the horizon

Comet P/2010 H2 (Vales)

P/2010 H2 (Vales)
R.A: 18h 06m 46s   Dec: -29° 04’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.8 (JPL) 
in Sagittarius   object currently below the horizon

Comet C/2015 O1 (PANSTARRS)

C/2015 O1 (PANSTARRS)
R.A: 11h 50m 21s   Dec: +37° 27’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.8 (JPL) 
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet C/2017 T2 (PANSTARRS)

C/2017 T2 (PANSTARRS)
R.A: 03h 15m 36s   Dec: -05° 17’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.2 (JPL) 
in Eridanus   object currently below the horizon

Comet C/2018 A6 (Gibbs)

C/2018 A6 (Gibbs)
R.A: 11h 30m 23s   Dec: -34° 55’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.3 (JPL)  brightening
in Hydra   object currently below the horizon
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