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Comets

Browse and discover detailed information about 207 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 246P/NEAT

246P/NEAT
R.A: 20h 30m 13s   Dec: -30° 37’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.5 (JPL)  fading
in Microscopium   object currently below the horizon

Comet P/2010 H2 (Vales)

P/2010 H2 (Vales)
R.A: 01h 24m 06s   Dec: -01° 21’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.6 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet C/2021 O1 (Nishimura)

C/2021 O1 (Nishimura)
R.A: 15h 19m 14s   Dec: -18° 05’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  fading
in Libra   object currently below the horizon

Comet 116P/Wild 4

116P/Wild 4
R.A: 10h 00m 57s   Dec: +16° 44’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet 116P/Wild 4

116P/Wild 4
R.A: 10h 00m 57s   Dec: +16° 44’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet 9P/Tempel 1

9P/Tempel 1
R.A: 14h 34m 22s   Dec: -09° 00’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.7 (JPL)  brightening
in Libra   object currently below the horizon

Comet C/2020 K1 (PANSTARRS)

C/2020 K1 (PANSTARRS)
R.A: 18h 00m 45s   Dec: +20° 35’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.8 (JPL) 
in Hercules   object currently below the horizon

Comet C/2020 T2 (Palomar)

C/2020 T2 (Palomar)
R.A: 18h 49m 47s   Dec: -32° 56’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.8 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 57P/duToit-Neujmin-Delporte

57P/duToit-Neujmin-Delporte
R.A: 20h 34m 28s   Dec: -17° 18’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.8 (JPL)  fading
in Capricornus   object currently below the horizon

Comet 104P/Kowal 2

104P/Kowal 2
R.A: 22h 51m 12s   Dec: -09° 07’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.8 (JPL)  brightening
in Aquarius   object currently below the horizon

Comet 402P/LINEAR

402P/LINEAR
R.A: 06h 31m 20s   Dec: +01° 27’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.9 (JPL) 
in Monoceros   current altitude greater than 30 degrees above the horizon

Comet 70P/Kojima

70P/Kojima
R.A: 11h 07m 42s   Dec: +07° 59’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.9 (JPL)  brightening
in Leo   object currently below the horizon

Comet C/2020 U5 (PANSTARRS)

C/2020 U5 (PANSTARRS)
R.A: 10h 22m 15s   Dec: +78° 28’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.0 (JPL)  brightening
in Draco   current altitude greater than 30 degrees above the horizon

Comet C/2020 O2 (Amaral)

C/2020 O2 (Amaral)
R.A: 17h 33m 55s   Dec: -04° 39’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.1 (JPL) 
in Ophiucus   object currently below the horizon

Comet C/2021 P4 (ATLAS)

C/2021 P4 (ATLAS)
R.A: 22h 30m 37s   Dec: +55° 43’ 56”
Observed Magnitude 17.7 (COBS)
Estimated Magnitude 17.1 (JPL)  brightening
in Lacerta   current altitude greater than 30 degrees above the horizon

Comet C/2020 H6 (ATLAS)

C/2020 H6 (ATLAS)
R.A: 15h 23m 32s   Dec: +07° 19’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.1 (JPL) 
in Serpens   object currently below the horizon

Comet P/2021 N2 (Fuls)

P/2021 N2 (Fuls)
R.A: 02h 02m 55s   Dec: +12° 03’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.1 (JPL) 
in Aries   current altitude greater than 30 degrees above the horizon

Comet 284P/McNaught

284P/McNaught
R.A: 23h 38m 26s   Dec: -13° 34’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.2 (JPL)  fading
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 135P/Shoemaker-Levy 8

135P/Shoemaker-Levy 8
R.A: 14h 22m 52s   Dec: -14° 52’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.2 (JPL) 
in Virgo   object currently below the horizon

Comet C/2019 N1 (ATLAS)

C/2019 N1 (ATLAS)
R.A: 01h 17m 16s   Dec: -62° 13’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.3 (JPL)  fading
in Tucana   object currently below the horizon
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