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Comets

Browse and discover detailed information about 167 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 17P/Holmes

17P/Holmes
R.A: 13h 28m 44s   Dec: -27° 47’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet C/2017 S7 (Lemmon)

C/2017 S6 (Lemmon)
R.A: 04h 03m 43s   Dec: -24° 05’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL)  brightening
in Eridanus   object currently below the horizon

Comet 119P/Parker-Hartley

119P/Parker-Hartley
R.A: 16h 54m 49s   Dec: -20° 13’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 01h 46m 25s   Dec: +14° 12’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL) 
in Pisces   object currently below the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 08h 53m 48s   Dec: +20° 16’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 48m 34s   Dec: -18° 13’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL) 
in Capricornus   object currently below the horizon

Comet C/2019 H1 (NEOWISE)

C/2019 H1
R.A: 14h 15m 12s   Dec: +48° 31’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL)  fading
in Bootes   current altitude greater than 30 degrees above the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 03h 04m 28s   Dec: +41° 26’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL) 
in Perseus   current altitude less than 30 degrees above the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 09h 40m 50s   Dec: -06° 01’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL)  fading
in Hydra   current altitude less than 30 degrees above the horizon

Comet 4P/Faye

4P/Faye
R.A: 15h 49m 38s   Dec: -13° 06’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 17h 50m 13s   Dec: -20° 03’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL)  fading
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet 297P/Beshore (2008 J2)

297P/Beshore (2008 J2)
R.A: 08h 14m 40s   Dec: +22° 11’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 08h 13m 51s   Dec: +19° 33’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 18h 44m 42s   Dec: -27° 50’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet C/2016 A3 (PANSTARRS)

C/2016 A3 (PANSTARRS)
R.A: 15h 40m 35s   Dec: -12° 06’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet C/2018 E1 (ATLAS)

C/2018 E1 (ATLAS)
R.A: 11h 08m 37s   Dec: +31° 49’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 14h 05m 05s   Dec: +05° 10’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 10P/Tempel 2

10P/Tempel 2
R.A: 10h 50m 58s   Dec: +14° 35’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.8 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet C/2013 X1 (PANSTARRS)

C/2013 X1 (PANSTARRS)
R.A: 11h 47m 20s   Dec: -12° 32’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Crater   current altitude less than 30 degrees above the horizon

Comet 81P/Wild 2

81P/Wild 2
R.A: 00h 09m 31s   Dec: -01° 38’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Pisces   object currently below the horizon
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