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Comets

Browse and discover detailed information about 144 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 96P/Machholz

96P/Machholz
R.A: 19h 15m 19s   Dec: -27° 53’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL) 
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet C/2017 S6 (Catalina)

C/2017 S6 (Catalina)
R.A: 17h 24m 35s   Dec: -46° 14’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL)  fading
in Ara   object currently below the horizon

Comet 11P/Tempel-Swift-LINEAR

11P/Tempel-Swift-LINEAR
R.A: 17h 37m 24s   Dec: -20° 00’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.0 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet 134P/Kowal-Vavrova

134P/Kowal-Vavrova
R.A: 00h 45m 08s   Dec: +05° 16’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL) 
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 17h 30m 30s   Dec: -22° 38’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet C/1995 O1 (Hale-Bopp)

C/1995 O1 (Hale-Bopp)
R.A: 23h 07m 15s   Dec: -84° 01’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.1 (JPL) 
in Octans   object currently below the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 17h 37m 32s   Dec: -20° 00’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 02h 49m 50s   Dec: +32° 57’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL)  brightening
in Triangulum   current altitude greater than 30 degrees above the horizon

Comet 333P/LINEAR

333P/LINEAR
R.A: 19h 46m 15s   Dec: -29° 17’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.3 (JPL) 
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)
R.A: 02h 15m 34s   Dec: -13° 38’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.4 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet Halley (1P/Halley)

Halley's Comet
R.A: 08h 20m 06s   Dec: +02° 00’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL) 
in Hydra   object currently below the horizon

Comet C/2017 T1 (Heinze)

C/2017 T1 (Heinze)
R.A: 20h 31m 45s   Dec: -73° 05’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.5 (JPL)  fading
in Pavo   object currently below the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 13h 52m 17s   Dec: -26° 16’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.7 (JPL)  brightening
in Hydra   object currently below the horizon

Comet 7P/Pons-Winnecke

7P/Pons-Winnecke
R.A: 06h 04m 34s   Dec: +26° 45’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.8 (JPL) 
in Gemini   current altitude less than 30 degrees above the horizon

Comet 226P/Pigott-LINEAR-Kowalski

226P/Pigott-LINEAR-Kowalski
R.A: 14h 41m 10s   Dec: +16° 41’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.2 (JPL) 
in Bootes   object currently below the horizon

Comet C/2017 S2 (PANSTARRS)

C/2017 S2 (PANSTARRS)
R.A: 04h 50m 35s   Dec: +27° 38’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.5 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 51P/Harrington

51P/Harrington
R.A: 11h 55m 33s   Dec: +07° 32’ 28”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.2 (JPL)  brightening
in Virgo   object currently below the horizon

Comet 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 09h 19m 50s   Dec: +24° 12’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.4 (JPL) 
in Cancer   object currently below the horizon

Comet C/2016 S1 (PANSTARRS)

C/2016 S1 (PANSTARRS)
R.A: 16h 01m 37s   Dec: +10° 18’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.1 (JPL)  fading
in Serpens   current altitude less than 30 degrees above the horizon

Comet 15P/Finlay

15P/Finlay
R.A: 13h 16m 59s   Dec: -08° 07’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.1 (JPL)  brightening
in Virgo   object currently below the horizon
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