Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 199 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 40P/Vaisala 1

40P/Vaisala 1
R.A: 00h 19m 57s   Dec: -08° 47’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.8 (JPL) 
in Cetus   object currently below the horizon

Comet C/2018 A1 (PANSTARRS)

C/2018 A1 (PANSTARRS)
R.A: 11h 34m 04s   Dec: -28° 41’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.7 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet 209P/LINEAR

209P/LINEAR
R.A: 00h 56m 27s   Dec: -16° 52’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.8 (JPL)  fading
in Cetus   object currently below the horizon

Comet P/2016 BA14 (PANSTARRS)

P/2016 BA14 (PANSTARRS)
R.A: 03h 42m 53s   Dec: -01° 49’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.0 (JPL)  brightening
in Eridanus   object currently below the horizon

Comet 24P/Schaumasse

24P/Schaumasse
R.A: 19h 54m 57s   Dec: -29° 05’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.2 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 60P/Tsuchinshan 2

60P/Tsuchinshan 2
R.A: 17h 35m 26s   Dec: -22° 58’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.6 (JPL)  fading
in Ophiucus   object currently below the horizon

Comet 41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
R.A: 02h 45m 11s   Dec: +04° 03’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.7 (JPL) 
in Cetus   object currently below the horizon

Comet 46P/Wirtanen

46P/Wirtanen
R.A: 15h 46m 03s   Dec: -16° 29’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.0 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet 20D/Westphal

20D/Westphal
R.A: 13h 58m 10s   Dec: -50° 14’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.2 (JPL) 
in Centaurus   object currently below the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 14h 26m 36s   Dec: -29° 11’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.2 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet 134P/Kowal-Vavrova

134P/Kowal-Vavrova
R.A: 01h 52m 58s   Dec: +10° 50’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.7 (JPL)  fading
in Aries   object currently below the horizon

Comet C/2018 K1 (Weiland)

C/2018 K1 (Weiland)
R.A: 11h 52m 52s   Dec: +16° 42’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.1 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet C/2017 T1 (Heinze)

C/2017 T1 (Heinze)
R.A: 12h 33m 29s   Dec: -83° 33’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.2 (JPL)  fading
in Octans   object currently below the horizon

Comet 18D/Perrine-Mrkos

18D/Perrine-Mrkos
R.A: 13h 51m 03s   Dec: -18° 23’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.7 (JPL) 
in Virgo   current altitude less than 30 degrees above the horizon

Comet P/2014 L2 (NEOWISE)

P/2014 L2 (NEOWISE)
R.A: 09h 54m 19s   Dec: +11° 59’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.7 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet C/2017 S3 (PANSTARRS)

C/2017 S3 (PANSTARRS)
R.A: 13h 13m 59s   Dec: +53° 43’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.8 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet 92P/Sanguin

92P/Sanguin
R.A: 11h 01m 40s   Dec: -00° 32’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.1 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)
R.A: 02h 48m 31s   Dec: -11° 37’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.1 (JPL) 
in Eridanus   object currently below the horizon

Comet McNaught (C/2006 P1)

C/2006 P1 (McNaught)
R.A: 16h 51m 54s   Dec: -53° 37’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.1 (JPL) 
in Ara   object currently below the horizon

Comet 80P/Peters-Hartley

80P/Peters-Hartley
R.A: 06h 32m 48s   Dec: +17° 54’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.4 (JPL)  brightening
in Gemini   current altitude less than 30 degrees above the horizon
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