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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 252P/LINEAR

252P/LINEAR
R.A: 23h 01m 14s   Dec: -03° 23’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.8 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 20h 41m 57s   Dec: -21° 57’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.2 (JPL) 
in Capricornus   object currently below the horizon

Comet 213P/Van Ness

213P/Van Ness
R.A: 04h 38m 59s   Dec: +34° 06’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.3 (JPL)  fading
in Auriga   current altitude greater than 30 degrees above the horizon

Comet 41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
R.A: 23h 34m 15s   Dec: -09° 34’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.8 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 16h 05m 48s   Dec: -22° 27’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL)  brightening
in Scorpius   object currently below the horizon

Comet P/2014 L2 (NEOWISE)

P/2014 L2 (NEOWISE)
R.A: 08h 55m 32s   Dec: +15° 08’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.2 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet 80P/Peters-Hartley

80P/Peters-Hartley
R.A: 03h 33m 48s   Dec: +30° 56’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.9 (JPL) 
in Taurus   current altitude greater than 30 degrees above the horizon

Comet C/2014 Q2 (Lovejoy)

C/2014 Q2 (Lovejoy)
R.A: 18h 00m 07s   Dec: -00° 53’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.2 (JPL)  fading
in Serpens   object currently below the horizon

Comet 8P/Tuttle

8P/Tuttle
R.A: 19h 37m 34s   Dec: +14° 46’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.9 (JPL) 
in Aquila   object currently below the horizon

Comet C/2015 D4 (Borisov)

C/2015 D4 (Borisov)
R.A: 17h 52m 59s   Dec: +83° 17’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.0 (JPL) 
in Draco   current altitude greater than 30 degrees above the horizon

Comet P/2016 BA14 (PANSTARRS)

P/2016 BA14 (PANSTARRS)
R.A: 22h 58m 00s   Dec: -04° 36’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.6 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 19h 20m 17s   Dec: -25° 35’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.7 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet 109P/Swift-Tuttle

109P/Swift-Tuttle
R.A: 09h 45m 56s   Dec: -21° 53’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.1 (JPL) 
in Hydra   object currently below the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 22h 53m 55s   Dec: -13° 40’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.5 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 45P/Honda-Mrkos-Pajdusakova

45P/Honda-Mrkos-Pajdusakova
R.A: 15h 24m 06s   Dec: -16° 07’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.7 (JPL)  fading
in Libra   object currently below the horizon

Comet C/2017 E1 (Borisov)

C/2017 E1 (Borisov)
R.A: 04h 52m 37s   Dec: +06° 45’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 38.0 (JPL)  fading
in Orion   current altitude greater than 30 degrees above the horizon

Comet C/2016 R3 (Borisov)

C/2016 R3 (Borisov)
R.A: 00h 58m 48s   Dec: -52° 58’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 39.0 (JPL)  fading
in Phoenix   object currently below the horizon

Comet C/2017 E4 (Lovejoy)

C/2017 E4 (Lovejoy)
R.A: 03h 50m 37s   Dec: -44° 51’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 45.8 (JPL)  fading
in Horologium   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 44m 48s   Dec: -20° 24’ 28”
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 32m 20s   Dec: +38° 29’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Lynx   current altitude greater than 30 degrees above the horizon
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