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Comets

Browse and discover detailed information about 171 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 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 10h 58m 30s   Dec: +16° 34’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL)  brightening
in Leo   object currently below the horizon

Comet 51P/Harrington

51P/Harrington
R.A: 12h 55m 54s   Dec: -00° 49’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL) 
in Virgo   object currently below the horizon

Comet 23P/Brorsen-Metcalf

23P/Brorsen-Metcalf
R.A: 17h 14m 16s   Dec: -37° 46’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.6 (JPL) 
in Scorpius   object currently below the horizon

Comet 252P/LINEAR

252P/LINEAR
R.A: 00h 14m 57s   Dec: +00° 53’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.7 (JPL) 
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 23h 33m 49s   Dec: -11° 43’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.9 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 24P/Schaumasse

24P/Schaumasse
R.A: 19h 03m 03s   Dec: -28° 13’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.0 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 16h 58m 33s   Dec: -27° 27’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.3 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet C/2018 K1 (Weiland)

C/2018 K1 (Weiland)
R.A: 12h 48m 05s   Dec: +10° 25’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.4 (JPL) 
in Virgo   object currently below the horizon

Comet C/2017 S6 (Catalina)

C/2017 S6 (Catalina)
R.A: 15h 00m 19s   Dec: -41° 23’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.4 (JPL)  fading
in Centaurus   object currently below the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 17h 29m 29s   Dec: -19° 06’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.6 (JPL) 
in Ophiucus   object currently below the horizon

Comet C/2017 S3 (PANSTARRS)

C/2017 S3 (PANSTARRS)
R.A: 13h 25m 38s   Dec: +49° 07’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.7 (JPL)  fading
in Canes Venatici   current altitude less than 30 degrees above the horizon

Comet C/2017 T1 (Heinze)

C/2017 T1 (Heinze)
R.A: 16h 03m 58s   Dec: -80° 51’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.8 (JPL)  fading
in Apus   object currently below the horizon

Comet C/2017 S2 (PANSTARRS)

C/2017 S2 (PANSTARRS)
R.A: 07h 24m 59s   Dec: +31° 09’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.2 (JPL)  fading
in Gemini   current altitude greater than 30 degrees above the horizon

Comet 8P/Tuttle

8P/Tuttle
R.A: 19h 43m 00s   Dec: +22° 40’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL)  brightening
in Vulpecula   current altitude less than 30 degrees above the horizon

Comet 134P/Kowal-Vavrova

134P/Kowal-Vavrova
R.A: 01h 10m 34s   Dec: +07° 24’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.3 (JPL)  fading
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 20D/Westphal

20D/Westphal
R.A: 13h 59m 58s   Dec: -50° 07’ 55”
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 02m 39s   Dec: -03° 27’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.6 (JPL)  fading
in Cetus   current altitude greater than 30 degrees above the horizon

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

C/2018 V1 (Machholz-Fujikawa-Iwamoto)
R.A: 16h 35m 00s   Dec: -47° 19’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.6 (JPL)  fading
in Norma   object currently below the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 14h 06m 15s   Dec: -26° 21’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.7 (JPL) 
in Hydra   object currently below the horizon

Comet 18D/Perrine-Mrkos

18D/Perrine-Mrkos
R.A: 13h 11m 15s   Dec: -18° 10’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.9 (JPL) 
in Virgo   object currently below the horizon
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