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Comets

Browse and discover detailed information about 147 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 45P/Honda-Mrkos-Pajdusakova

45P/Honda-Mrkos-Pajdusakova
R.A: 15h 51m 05s   Dec: -17° 07’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.6 (JPL) 
in Libra   object currently below the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 23h 37m 21s   Dec: -09° 00’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 37.0 (JPL) 
in Aquarius   object currently below the horizon

Comet C/2017 E1 (Borisov)

C/2017 E1 (Borisov)
R.A: 04h 40m 19s   Dec: +09° 16’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 39.7 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

Comet C/2016 R3 (Borisov)

C/2016 R3 (Borisov)
R.A: 01h 26m 18s   Dec: -44° 40’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 39.9 (JPL)  fading
in Phoenix   object currently below the horizon

Comet C/2017 E4 (Lovejoy)

C/2017 E4 (Lovejoy)
R.A: 03h 41m 09s   Dec: -36° 59’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 47.7 (JPL)  fading
in Eridanus   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 48m 28s   Dec: -20° 31’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 48.1 (JPL)  brightening
in Scorpius   object currently below the horizon

Comet C/2012 S1 (ISON)

C/2012 S1 (ISON)
R.A: 07h 08m 42s   Dec: +38° 24’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Auriga   current altitude greater than 30 degrees above the horizon
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