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Comets

Browse and discover detailed information about 168 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 297P/Beshore (2008 J2)

297P/Beshore (2008 J2)
R.A: 09h 20m 09s   Dec: +19° 34’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet 17P/Holmes

17P/Holmes
R.A: 14h 29m 38s   Dec: -30° 57’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.9 (JPL) 
in Centaurus   current altitude less than 30 degrees above the horizon

Comet C/2017 S7 (Lemmon)

C/2017 S6 (Lemmon)
R.A: 03h 46m 40s   Dec: -30° 37’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Fornax   object currently below the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 01h 32m 03s   Dec: +12° 26’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Pisces   object currently below the horizon

Comet 38P/Stephan-Oterma

38P/Stephan-Oterma
R.A: 12h 56m 35s   Dec: +09° 16’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  fading
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 18h 38m 37s   Dec: -27° 46’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 08h 50m 02s   Dec: +17° 36’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 48m 56s   Dec: +41° 48’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL) 
in Perseus   current altitude less than 30 degrees above the horizon

Comet 119P/Parker-Hartley

119P/Parker-Hartley
R.A: 17h 14m 06s   Dec: -21° 10’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 10P/Tempel 2

10P/Tempel 2
R.A: 11h 46m 12s   Dec: +09° 36’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL)  brightening
in Virgo   current altitude greater than 30 degrees above the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 35m 37s   Dec: -18° 54’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL) 
in Capricornus   object currently below the horizon

Comet 4P/Faye

4P/Faye
R.A: 16h 16m 42s   Dec: -15° 08’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL) 
in Scorpius   current altitude less than 30 degrees above the horizon

Comet 64P/Swift-Gehrels

64P/Swift-Gehrels
R.A: 11h 03m 30s   Dec: +01° 09’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.8 (JPL)  fading
in Leo   current altitude less than 30 degrees above the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 10h 34m 16s   Dec: -11° 02’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.8 (JPL) 
in Sextans   current altitude less than 30 degrees above the horizon

Comet 110P/Hartley 3

110P/Hartley 3
R.A: 20h 22m 43s   Dec: -12° 36’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL) 
in Capricornus   object currently below the horizon

Comet C/2018 E1 (ATLAS)

C/2018 E1 (ATLAS)
R.A: 11h 56m 35s   Dec: +31° 52’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 18h 04m 55s   Dec: -21° 06’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  fading
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet 77P/Longmore

77P/Longmore
R.A: 01h 46m 25s   Dec: +19° 53’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  brightening
in Aries   object currently below the horizon

Comet 209P/LINEAR

209P/LINEAR
R.A: 18h 55m 11s   Dec: -44° 30’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  fading
in Corona Australis   object currently below the horizon

Comet C/2016 A3 (PANSTARRS)

C/2016 A3 (PANSTARRS)
R.A: 16h 08m 20s   Dec: -14° 06’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  fading
in Scorpius   current altitude less than 30 degrees above the horizon
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