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Comets

Browse and discover detailed information about 143 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 E4 (Lovejoy)

C/2017 E4 (Lovejoy)
R.A: 03h 35m 00s   Dec: -42° 51’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 46.5 (JPL)  fading
in Eridanus   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 49m 31s   Dec: -20° 37’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 48.3 (JPL)  brightening
in Scorpius   current altitude less than 30 degrees above the horizon

Comet C/2012 S1 (ISON)

C/2012 S1 (ISON)
R.A: 07h 22m 26s   Dec: +38° 49’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Auriga   current altitude less than 30 degrees above the horizon
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