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Comets

Browse and discover detailed information about 211 of the most interesting comets. Comets are listed in order of decreasing brightness.

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 274P/Tombaugh-Tenagra

274P/Tombaugh-Tenagra
R.A: 07h 36m 44s   Dec: +32° 00’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  fading
in Gemini   current altitude less than 30 degrees above the horizon

Comet 77P/Longmore

77P/Longmore
R.A: 07h 52m 15s   Dec: +40° 53’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL) 
in Lynx   current altitude less than 30 degrees above the horizon

Comet P/2021 V2 (Fuls)

P/2021 V2 (Fuls)
R.A: 05h 22m 37s   Dec: +17° 08’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  brightening
in Taurus   current altitude less than 30 degrees above the horizon

Comet 157P/Tritton

157P/Tritton
R.A: 01h 49m 51s   Dec: +20° 25’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL)  brightening
in Aries   current altitude greater than 30 degrees above the horizon

Comet C/2020 T2 (Palomar)

C/2020 T2 (Palomar)
R.A: 23h 05m 08s   Dec: -31° 31’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.3 (JPL)  fading
in Pisces Austrinus   current altitude less than 30 degrees above the horizon

Comet C/2021 O1 (Nishimura)

C/2021 O1 (Nishimura)
R.A: 15h 51m 17s   Dec: -33° 38’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.5 (JPL)  fading
in Lupus   object currently below the horizon

Comet 327P/Van Ness

327P/Van Ness
R.A: 22h 04m 42s   Dec: +20° 03’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL)  brightening
in Pegasus   current altitude greater than 30 degrees above the horizon

Comet C/2014 UN271 (Bernardinelli-Bernstein)

C/2014 UN271 (Bernardinelli-Bernstein)
R.A: 02h 40m 57s   Dec: -53° 35’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.7 (JPL) 
in Horologium   object currently below the horizon

Comet 319P/Catalina-McNaught

319P/Catalina-McNaught
R.A: 01h 36m 50s   Dec: +00° 26’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.7 (JPL)  fading
in Cetus   current altitude greater than 30 degrees above the horizon

Comet 28P/Neujmin 1

28P/Neujmin 1
R.A: 05h 42m 44s   Dec: +34° 56’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.7 (JPL)  fading
in Auriga   current altitude less than 30 degrees above the horizon

Comet 378P/McNaught

378P/McNaught
R.A: 01h 43m 39s   Dec: -06° 34’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL) 
in Cetus   current altitude less than 30 degrees above the horizon

Comet 65P/Gunn

65P/Gunn
R.A: 07h 22m 08s   Dec: +28° 58’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  fading
in Gemini   current altitude less than 30 degrees above the horizon

Comet 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 12h 00m 25s   Dec: -11° 10’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  fading
in Virgo   object currently below the horizon

Comet 240P/NEAT

240P/NEAT
R.A: 16h 53m 59s   Dec: -20° 39’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  brightening
in Ophiucus   object currently below the horizon

Comet 284P/McNaught

284P/McNaught
R.A: 03h 48m 01s   Dec: +11° 03’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.8 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 199P/Shoemaker 4

199P/Shoemaker 4
R.A: 13h 28m 15s   Dec: +22° 02’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.0 (JPL)  brightening
in Coma   object currently below the horizon

Comet 204P/LINEAR-NEAT

204P/LINEAR-NEAT
R.A: 02h 32m 37s   Dec: +10° 09’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.2 (JPL)  brightening
in Cetus   current altitude greater than 30 degrees above the horizon

Comet C/2021 A7 (NEOWISE)

C/2021 A7 (NEOWISE)
R.A: 17h 59m 07s   Dec: +69° 40’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.2 (JPL)  fading
in Draco   current altitude greater than 30 degrees above the horizon

Comet 10P/Tempel 2

10P/Tempel 2
R.A: 05h 27m 16s   Dec: +18° 35’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.3 (JPL) 
in Taurus   current altitude less than 30 degrees above the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 09h 10m 47s   Dec: +12° 17’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  fading
in Cancer   object currently below the horizon
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