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Comets

Browse and discover detailed information about 211 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 226P/Pigott-LINEAR-Kowalski

226P/Pigott-LINEAR-Kowalski
R.A: 16h 54m 19s   Dec: -44° 18’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.3 (JPL)  brightening
in Scorpius   object currently below the horizon

Comet C/2020 S8 (Lemmon)

C/2020 S8 (Lemmon)
R.A: 07h 41m 12s   Dec: -44° 12’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.4 (JPL)  fading
in Puppis   object currently below the horizon

Comet C/2019 U6 (Lemmon)

C/2019 U6 (Lemmon)
R.A: 22h 48m 16s   Dec: +50° 10’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.7 (JPL) 
in Lacerta   current altitude greater than 30 degrees above the horizon

Comet 68P/Klemola

68P/Klemola
R.A: 07h 13m 41s   Dec: +13° 28’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL) 
in Gemini   object currently below the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 00h 07m 32s   Dec: +13° 43’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL) 
in Pegasus   current altitude greater than 30 degrees above the horizon

Comet 333P/LINEAR

333P/LINEAR
R.A: 17h 48m 10s   Dec: -59° 17’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL)  brightening
in Pavo   object currently below the horizon

Comet 209P/LINEAR

209P/LINEAR
R.A: 03h 00m 41s   Dec: +10° 49’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.0 (JPL) 
in Aries   current altitude greater than 30 degrees above the horizon

Comet 249P/LINEAR

249P/LINEAR
R.A: 07h 19m 35s   Dec: +15° 34’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL)  fading
in Gemini   current altitude less than 30 degrees above the horizon

Comet C/2020 R4 (ATLAS)

C/2020 R4 (ATLAS)
R.A: 09h 17m 35s   Dec: +16° 51’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL)  fading
in Cancer   object currently below the horizon

Comet 123P/West-Hartley

123P/West-Hartley
R.A: 22h 32m 42s   Dec: -25° 40’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL)  brightening
in Pisces Austrinus   current altitude less than 30 degrees above the horizon

Comet 332P/Ikeya-Murakami

332P/Ikeya-Murakami
R.A: 18h 37m 16s   Dec: -36° 25’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 114P/Wiseman-Skiff

114P/Wiseman-Skiff
R.A: 16h 17m 00s   Dec: -31° 29’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL) 
in Scorpius   object currently below the horizon

Comet C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov)
R.A: 17h 44m 38s   Dec: -58° 11’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL)  fading
in Pavo   object currently below the horizon

Comet Hale-Bopp (C/1995 O1)

C/1995 O1 (Hale-Bopp)
R.A: 23h 32m 29s   Dec: -84° 24’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL) 
in Octans   object currently below the horizon

Comet Halley (1P/Halley)

Halley's Comet
R.A: 08h 13m 42s   Dec: +03° 07’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL) 
in Hydra   object currently below the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 17h 00m 50s   Dec: -18° 08’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.7 (JPL) 
in Ophiucus   object currently below the horizon

Comet 38P/Stephan-Oterma

38P/Stephan-Oterma
R.A: 14h 54m 27s   Dec: -04° 27’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.8 (JPL) 
in Libra   object currently below the horizon

Comet 260P/McNaught

260P/McNaught
R.A: 11h 03m 03s   Dec: +04° 17’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.9 (JPL)  fading
in Leo   object currently below the horizon

Comet 364P/2018 A2 (PANSTARRS)

364P/2018 A2 (PANSTARRS)
R.A: 06h 35m 07s   Dec: +32° 15’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.0 (JPL) 
in Auriga   current altitude less than 30 degrees above the horizon

Comet 56P/Slaughter-Burnham

56P/Slaughter-Burnham
R.A: 13h 32m 00s   Dec: -16° 41’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.4 (JPL) 
in Virgo   object currently below the horizon
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