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Comets

Browse and discover detailed information about 176 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 56P/Slaughter-Burnham

56P/Slaughter-Burnham
R.A: 12h 07m 42s   Dec: -04° 04’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL) 
in Virgo   object currently below the horizon

Comet C/2017 K4 (ATLAS)

C/2017 K4 (ATLAS)
R.A: 03h 35m 58s   Dec: +32° 12’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL)  fading
in Perseus   current altitude greater than 30 degrees above the horizon

Comet C/1995 O1 (Hale-Bopp)

C/1995 O1 (Hale-Bopp)
R.A: 23h 24m 03s   Dec: -83° 55’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL) 
in Octans   object currently below the horizon

Comet C/2013 A1 (Siding Spring)

C/2013 A1 (Siding Spring)
R.A: 10h 06m 46s   Dec: +38° 42’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL) 
in Leo Minor   current altitude less than 30 degrees above the horizon

Comet 66P/du Toit

66P/du Toit
R.A: 03h 09m 14s   Dec: +28° 35’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL) 
in Aries   current altitude greater than 30 degrees above the horizon

Comet 333P/LINEAR

333P/LINEAR
R.A: 19h 29m 02s   Dec: -38° 35’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet Halley (1P/Halley)

Halley's Comet
R.A: 08h 16m 16s   Dec: +02° 29’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet 37P/Forbes

37P/Forbes
R.A: 04h 08m 48s   Dec: +28° 04’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.7 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

Comet 96P/Machholz

96P/Machholz
R.A: 19h 39m 37s   Dec: -32° 53’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.8 (JPL) 
in Sagittarius   object currently below the horizon

Comet 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 23h 15m 22s   Dec: -03° 40’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.3 (JPL)  brightening
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 51P/Harrington

51P/Harrington
R.A: 13h 00m 19s   Dec: +00° 23’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.4 (JPL)  brightening
in Virgo   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 19h 03m 00s   Dec: -30° 04’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.7 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 10h 19m 55s   Dec: +23° 48’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.7 (JPL) 
in Leo   current altitude less than 30 degrees above the horizon

Comet 226P/Pigott-LINEAR-Kowalski

226P/Pigott-LINEAR-Kowalski
R.A: 15h 09m 23s   Dec: -00° 31’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.8 (JPL)  brightening
in Libra   object currently below the horizon

Comet 12P/Pons-Brooks

12P/Pons-Brooks
R.A: 18h 18m 38s   Dec: +17° 21’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.8 (JPL)  brightening
in Hercules   object currently below the horizon

Comet 60P/Tsuchinshan 2

60P/Tsuchinshan 2
R.A: 18h 01m 57s   Dec: -24° 14’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.8 (JPL) 
in Sagittarius   object currently below the horizon

Comet 13P/Olbers

13P/Olbers
R.A: 01h 21m 01s   Dec: -37° 01’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.9 (JPL)  brightening
in Sculptor   object currently below the horizon

Comet C/2018 A1 (PANSTARRS)

C/2018 A1 (PANSTARRS)
R.A: 10h 56m 49s   Dec: -26° 25’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.2 (JPL)  fading
in Hydra   object currently below the horizon

Comet C/2019 H1 (NEOWISE)

C/2019 H1 (NEOWISE)
R.A: 05h 24m 56s   Dec: +83° 57’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.2 (JPL)  fading
in Cepheus   current altitude greater than 30 degrees above the horizon

Comet C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)
R.A: 02h 33m 20s   Dec: -09° 49’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.3 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon
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