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Comets

Browse and discover detailed information about 138 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 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 20h 18m 04s   Dec: -24° 23’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.1 (JPL) 
in Capricornus   current altitude less than 30 degrees above the horizon

Comet 15P/Finlay

15P/Finlay
R.A: 12h 42m 12s   Dec: -03° 59’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.1 (JPL) 
in Virgo   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 15h 21m 21s   Dec: -19° 33’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.3 (JPL) 
in Libra   object currently below the horizon

Comet P/2014 L2 (NEOWISE)

P/2014 L2 (NEOWISE)
R.A: 08h 56m 14s   Dec: +15° 12’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.3 (JPL) 
in Cancer   object currently below the horizon

Comet C/2014 Q2 (Lovejoy)

C/2014 Q2 (Lovejoy)
R.A: 17h 45m 28s   Dec: +00° 32’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.8 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 80P/Peters-Hartley

80P/Peters-Hartley
R.A: 04h 07m 22s   Dec: +33° 29’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.0 (JPL)  brightening
in Perseus   current altitude less than 30 degrees above the horizon

Comet C/2015 D4 (Borisov)

C/2015 D4 (Borisov)
R.A: 15h 38m 18s   Dec: +84° 03’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.8 (JPL) 
in Ursa Minor   current altitude greater than 30 degrees above the horizon

Comet 8P/Tuttle

8P/Tuttle
R.A: 19h 19m 24s   Dec: +16° 45’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.0 (JPL)  brightening
in Sagitta   current altitude greater than 30 degrees above the horizon

Comet P/2016 BA14 (PANSTARRS)

P/2016 BA14 (PANSTARRS)
R.A: 22h 59m 04s   Dec: -02° 54’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.2 (JPL) 
in Pisces   current altitude less than 30 degrees above the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 18h 25m 31s   Dec: -26° 56’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.1 (JPL) 
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 22h 54m 50s   Dec: -14° 07’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.1 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 109P/Swift-Tuttle

109P/Swift-Tuttle
R.A: 09h 46m 06s   Dec: -21° 08’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.1 (JPL) 
in Hydra   object currently below the horizon

Comet 45P/Honda-Mrkos-Pajdusakova

45P/Honda-Mrkos-Pajdusakova
R.A: 14h 41m 59s   Dec: -13° 08’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.4 (JPL)  fading
in Libra   object currently below the horizon

Comet C/2017 E1 (Borisov)

C/2017 E1 (Borisov)
R.A: 05h 19m 33s   Dec: +07° 54’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 37.2 (JPL)  fading
in Orion   object currently below the horizon

Comet C/2016 R3 (Borisov)

C/2016 R3 (Borisov)
R.A: 01h 27m 04s   Dec: -56° 04’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 38.4 (JPL)  fading
in Eridanus   object currently below the horizon

Comet C/2017 E4 (Lovejoy)

C/2017 E4 (Lovejoy)
R.A: 04h 32m 18s   Dec: -42° 25’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 44.7 (JPL)  fading
in Caelum   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 34m 06s   Dec: -19° 52’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 48.4 (JPL) 
in Libra   object currently below the horizon

Comet C/2012 S1 (ISON)

C/2012 S1 (ISON)
R.A: 07h 41m 41s   Dec: +37° 26’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Lynx   object currently below the horizon
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