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Comets

Browse and discover detailed information about 140 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 O1 (ATLAS)

C/2018 O1 (ATLAS)
R.A: 15h 34m 03s   Dec: -31° 35’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL)  fading
in Lupus   object currently below the horizon

Comet C/1995 O1 (Hale-Bopp)

C/1995 O1 (Hale-Bopp)
R.A: 22h 22m 02s   Dec: -85° 12’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL) 
in Octans   object currently below the horizon

Comet 333P/LINEAR

333P/LINEAR
R.A: 19h 10m 18s   Dec: -28° 48’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL)  fading
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet C/2017 S2 (PANSTARRS)

C/2017 S2 (PANSTARRS)
R.A: 05h 06m 08s   Dec: +27° 16’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL)  fading
in Taurus   object currently below the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 16h 45m 22s   Dec: -20° 23’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.4 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 16h 46m 31s   Dec: -19° 53’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.4 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 18h 21m 05s   Dec: -23° 57’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.4 (JPL)  brightening
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet Halley (1P/Halley)

Halley's Comet
R.A: 08h 28m 06s   Dec: +01° 37’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL) 
in Hydra   object currently below the horizon

Comet 11P/Tempel-Swift-LINEAR

11P/Tempel-Swift-LINEAR
R.A: 16h 35m 14s   Dec: -20° 05’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 7P/Pons-Winnecke

7P/Pons-Winnecke
R.A: 06h 49m 00s   Dec: +24° 56’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.8 (JPL) 
in Gemini   object currently below the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 02h 38m 02s   Dec: +40° 19’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.8 (JPL)  brightening
in Andromeda   current altitude less than 30 degrees above the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 13h 44m 28s   Dec: -23° 14’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.0 (JPL) 
in Hydra   object currently below the horizon

Comet 226P/Pigott-LINEAR-Kowalski

226P/Pigott-LINEAR-Kowalski
R.A: 14h 21m 46s   Dec: +14° 41’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.3 (JPL) 
in Bootes   current altitude less than 30 degrees above the horizon

Comet 51P/Harrington

51P/Harrington
R.A: 12h 03m 22s   Dec: +05° 27’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL)  brightening
in Virgo   object currently below the horizon

Comet C/2016 S1 (PANSTARRS)

C/2016 S1 (PANSTARRS)
R.A: 15h 35m 59s   Dec: +02° 53’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.6 (JPL)  fading
in Serpens   current altitude less than 30 degrees above the horizon

Comet 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 09h 54m 13s   Dec: +19° 59’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.7 (JPL) 
in Leo   object currently below the horizon

Comet C/2017 P2 (PANSTARRS)

C/2017 P2 (PANSTARRS)
R.A: 00h 40m 20s   Dec: -27° 30’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.1 (JPL)  fading
in Sculptor   object currently below the horizon

Comet 92P/Sanguin

92P/Sanguin
R.A: 10h 02m 55s   Dec: -00° 54’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.4 (JPL)  brightening
in Sextans   object currently below the horizon

Comet 12P/Pons-Brooks

12P/Pons-Brooks
R.A: 17h 52m 18s   Dec: +11° 49’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.4 (JPL) 
in Ophiucus   current altitude greater than 30 degrees above the horizon

Comet 15P/Finlay

15P/Finlay
R.A: 13h 11m 40s   Dec: -07° 14’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.8 (JPL)  brightening
in Virgo   object currently below the horizon
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