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Comets

Browse and discover detailed information about 168 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 51P/Harrington

51P/Harrington
R.A: 12h 10m 18s   Dec: +03° 51’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.7 (JPL) 
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 15P/Finlay

15P/Finlay
R.A: 13h 03m 29s   Dec: -07° 42’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.7 (JPL)  brightening
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 252P/LINEAR

252P/LINEAR
R.A: 00h 54m 25s   Dec: +06° 01’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.8 (JPL) 
in Pisces   object currently below the horizon

Comet C/2018 K1 (Weiland)

C/2018 K1 (Weiland)
R.A: 12h 26m 17s   Dec: +11° 28’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.8 (JPL)  fading
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 10h 20m 07s   Dec: +18° 28’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.9 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet C/2017 S3 (PANSTARRS)

C/2017 S3 (PANSTARRS)
R.A: 12h 29m 45s   Dec: +48° 06’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.9 (JPL)  fading
in Canes Venatici   current altitude greater than 30 degrees above the horizon

Comet C/2017 T1 (Heinze)

C/2017 T1 (Heinze)
R.A: 13h 12m 31s   Dec: -80° 54’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.0 (JPL)  fading
in Chamaleon   object currently below the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 16h 48m 35s   Dec: -17° 48’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.5 (JPL)  fading
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 16h 05m 09s   Dec: -25° 33’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.5 (JPL) 
in Scorpius   current altitude less than 30 degrees above the horizon

Comet C/2017 S2 (PANSTARRS)

C/2017 S2 (PANSTARRS)
R.A: 07h 15m 34s   Dec: +29° 32’ 28”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.9 (JPL) 
in Gemini   current altitude less than 30 degrees above the horizon

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

C/2018 V1 (Machholz-Fujikawa-Iwamoto)
R.A: 15h 48m 15s   Dec: -48° 17’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.9 (JPL)  fading
in Lupus   object currently below the horizon

Comet 134P/Kowal-Vavrova

134P/Kowal-Vavrova
R.A: 01h 31m 53s   Dec: +09° 39’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL) 
in Pisces   object currently below the horizon

Comet 20D/Westphal

20D/Westphal
R.A: 13h 46m 08s   Dec: -49° 30’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.3 (JPL) 
in Centaurus   object currently below the horizon

Comet 41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
R.A: 01h 41m 41s   Dec: +00° 31’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.4 (JPL) 
in Cetus   object currently below the horizon

Comet 8P/Tuttle

8P/Tuttle
R.A: 19h 36m 48s   Dec: +28° 12’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.5 (JPL) 
in Cygnus   current altitude less than 30 degrees above the horizon

Comet 18D/Perrine-Mrkos

18D/Perrine-Mrkos
R.A: 12h 24m 16s   Dec: -13° 40’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.7 (JPL)  fading
in Corvus   current altitude less than 30 degrees above the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 13h 31m 01s   Dec: -23° 10’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.8 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet P/2014 L2 (NEOWISE)

P/2014 L2 (NEOWISE)
R.A: 09h 15m 43s   Dec: +14° 30’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.2 (JPL) 
in Cancer   current altitude greater than 30 degrees above the horizon

Comet 92P/Sanguin

92P/Sanguin
R.A: 10h 15m 11s   Dec: +01° 40’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.7 (JPL) 
in Sextans   current altitude less than 30 degrees above the horizon

Comet 62P/Tsuchinshan 1

62P/Tsuchinshan 1
R.A: 17h 23m 49s   Dec: -23° 50’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.3 (JPL)  fading
in Ophiucus   object currently below the horizon
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