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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/2017 K4 (ATLAS)

C/2017 K4 (ATLAS)
R.A: 00h 35m 12s   Dec: +24° 44’ 12”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL)  fading
in Andromeda   current altitude less than 30 degrees above the horizon

Comet C/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 17h 23m 34s   Dec: -28° 23’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.5 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet C/2013 YG46 (Spacewatch)

C/2013 YG46 (Spacewatch)
R.A: 05h 19m 37s   Dec: +28° 33’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.5 (JPL) 
in Taurus   object currently below the horizon

Comet C/2015 ER61 (PANSTARRS)

C/2015 ER61 (PANSTARRS)
R.A: 05h 03m 30s   Dec: +19° 59’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL) 
in Taurus   object currently below the horizon

Comet C/2018 E2 (Barros)

C/2018 E2 (Barros)
R.A: 04h 49m 05s   Dec: -12° 28’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.9 (JPL)  fading
in Eridanus   object currently below the horizon

Comet C/2016 Q2 (PANSTARRS)

C/2016 Q2 (PANSTARRS)
R.A: 20h 10m 39s   Dec: +06° 25’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.0 (JPL) 
in Aquila   current altitude greater than 30 degrees above the horizon

Comet C/2017 Y2 (PANSTARRS)

C/2017 Y2 (PANSTARRS)
R.A: 21h 24m 21s   Dec: +40° 32’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.1 (JPL)  brightening
in Cygnus   current altitude greater than 30 degrees above the horizon

Comet 17P/Holmes

17P/Holmes
R.A: 13h 33m 06s   Dec: -24° 44’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  brightening
in Hydra   object currently below the horizon

Comet C/2017 S7 (Lemmon)

C/2017 S6 (Lemmon)
R.A: 03h 54m 35s   Dec: -18° 33’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL) 
in Eridanus   object currently below the horizon

Comet 25D/Neujmin 2

25D/Neujmin 2
R.A: 01h 49m 08s   Dec: +19° 00’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  brightening
in Aries   current altitude less than 30 degrees above the horizon

Comet 53P/Van Biesbroeck

53P/Van Biesbroeck
R.A: 03h 36m 26s   Dec: +11° 24’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.6 (JPL) 
in Taurus   object currently below the horizon

Comet C/2013 X1 (PANSTARRS)

C/2013 X1 (PANSTARRS)
R.A: 12h 30m 40s   Dec: -18° 17’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL) 
in Corvus   object currently below the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 41m 44s   Dec: -19° 22’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL) 
in Capricornus   current altitude less than 30 degrees above the horizon

Comet 269P/Jedicke

269P/Jedicke
R.A: 15h 42m 33s   Dec: -20° 24’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 07h 14m 15s   Dec: +20° 32’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Gemini   object currently below the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 34m 55s   Dec: +42° 18’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL)  fading
in Andromeda   current altitude less than 30 degrees above the horizon

Comet 290P/Jager

290P/Jager
R.A: 18h 56m 52s   Dec: -28° 30’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet C/2016 A3 (PANSTARRS)

C/2016 A3 (PANSTARRS)
R.A: 15h 20m 51s   Dec: -13° 35’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 23h 12m 08s   Dec: +00° 31’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  fading
in Pisces   current altitude less than 30 degrees above the horizon

Comet Encke (2P/Encke)

Encke's Comet
R.A: 22h 05m 08s   Dec: -10° 01’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon
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