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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 C/2018 Y1 (Iwamoto)

C/2018 Y1 (Iwamoto)
C/2018 Y1 (Iwamoto) is brighter than mag 10
R.A: 08h 10m 17s   Dec: +29° 50’ 21”
Observed Magnitude 6.5 (COBS)
Estimated Magnitude 11.0 (JPL)  fading
in Cancer   current altitude greater than 30 degrees above the horizon

Comet 46P/Wirtanen

46P/Wirtanen
46P/Wirtanen is brighter than mag 10
R.A: 09h 33m 39s   Dec: +49° 51’ 03”
Observed Magnitude 8.8 (COBS)
Estimated Magnitude 15.9 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet 38P/Stephan-Oterma

38P/Stephan-Oterma
R.A: 08h 26m 31s   Dec: +47° 13’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 12.8 (JPL)  fading
in Lynx   current altitude greater than 30 degrees above the horizon

Comet 78P/Gehrels 2

78P/Gehrels 2
R.A: 00h 25m 08s   Dec: +03° 13’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.0 (JPL) 
in Pisces   object currently below the horizon

Comet C/2016 M1 (PANSTARRS)

C/2016 M1 (PANSTARRS)
R.A: 03h 19m 55s   Dec: -67° 43’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.1 (JPL)  fading
in Hydrus   object currently below the horizon

Comet C/2016 N6 (PANSTARRS)

C/2016 N6 (PANSTARRS)
R.A: 05h 53m 31s   Dec: -22° 05’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.4 (JPL)  fading
in Lepus   object currently below the horizon

Comet C/2018 N2 (ASASSN)

C/2018 N2 (ASASSN)
R.A: 01h 10m 02s   Dec: -21° 34’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.7 (JPL) 
in Cetus   object currently below the horizon

Comet 60P/Tsuchinshan 2

60P/Tsuchinshan 2
R.A: 11h 45m 48s   Dec: -06° 25’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.8 (JPL)  fading
in Virgo   current altitude less than 30 degrees above the horizon

Comet C/2018 L2 (ATLAS)

C/2018 L2 (ATLAS)
R.A: 21h 31m 05s   Dec: +34° 28’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.9 (JPL)  fading
in Cygnus   object currently below the horizon

Comet C/2017 M4 (ATLAS)

C/2017 M4 (ATLAS)
R.A: 17h 31m 30s   Dec: -18° 35’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.1 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet C/2018 A6 (Gibbs)

C/2018 A6 (Gibbs)
R.A: 10h 17m 30s   Dec: -57° 21’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.3 (JPL)  brightening
in Carina   object currently below the horizon

Comet 29P/Schwassmann-Wachmann 1

29P/Schwassmann-Wachmann 1
R.A: 23h 28m 48s   Dec: +03° 02’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.3 (JPL)  fading
in Pisces   object currently below the horizon

Comet C/2018 A3 (ATLAS)

C/2018 A3 (ATLAS)
R.A: 04h 13m 19s   Dec: +68° 42’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.5 (JPL)  fading
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Comet C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 16h 03m 09s   Dec: +43° 49’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.5 (JPL)  fading
in Hercules   current altitude greater than 30 degrees above the horizon

Comet C/2017 B3 (LINEAR)

C/2017 B3 (LINEAR)
R.A: 21h 56m 52s   Dec: -57° 43’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.6 (JPL) 
in Indus   object currently below the horizon

Comet P/2010 H2 (Vales)

P/2010 H2 (Vales)
R.A: 19h 40m 21s   Dec: -29° 02’ 43”
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: 10h 16m 26s   Dec: +44° 19’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.8 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet C/2017 T2 (PANSTARRS)

C/2017 T2 (PANSTARRS)
R.A: 02h 59m 30s   Dec: +00° 24’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.9 (JPL)  brightening
in Cetus   object currently below the horizon

Comet C/2018 W2 (Africano)

C/2018 W2 (Africano)
R.A: 14h 48m 50s   Dec: +77° 44’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.5 (JPL)  brightening
in Ursa Minor   current altitude greater than 30 degrees above the horizon

Comet 240P/NEAT

240P/NEAT
R.A: 11h 08m 26s   Dec: +42° 08’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.6 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon
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