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Comets

Browse and discover detailed information about 214 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 255P/Levy

255P/Levy
R.A: 07h 19m 26s   Dec: +26° 02’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 11.0 (JPL)  brightening
in Gemini   current altitude greater than 30 degrees above the horizon

Comet C/2017 K2 (PANSTARRS)

C/2017 K2 (PANSTARRS)
R.A: 16h 08m 12s   Dec: -17° 01’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 11.0 (JPL) 
in Scorpius   object currently below the horizon

Comet C/2021 P4 (ATLAS)

C/2021 P4 (ATLAS)
R.A: 10h 38m 19s   Dec: +00° 30’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 12.7 (JPL)  fading
in Sextans   current altitude greater than 30 degrees above the horizon

Comet 51P/Harrington

51P/Harrington
R.A: 22h 40m 05s   Dec: -20° 43’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 12.9 (JPL)  brightening
in Aquarius   object currently below the horizon

Comet ZTF (C/2020 V2)

C/2020 V2 (ZTF)
R.A: 10h 12m 52s   Dec: +52° 43’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.4 (JPL)  brightening
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet C/2022 E3 (ZTF)

C/2022 E3 (ZTF)
R.A: 16h 55m 17s   Dec: +34° 53’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 13.6 (JPL)  brightening
in Hercules   current altitude less than 30 degrees above the horizon

Comet C/2019 L3 (ATLAS)

C/2019 L3 (ATLAS)
R.A: 08h 51m 42s   Dec: -02° 34’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.0 (JPL) 
in Hydra   current altitude greater than 30 degrees above the horizon

Comet C/2020 K1 (PANSTARRS)

C/2020 K1 (PANSTARRS)
R.A: 17h 23m 59s   Dec: +03° 49’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.1 (JPL) 
in Ophiucus   object currently below the horizon

Comet C/2019 T4 (ATLAS)

C/2019 T4 (ATLAS)
R.A: 12h 42m 48s   Dec: -03° 03’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.1 (JPL)  fading
in Virgo   current altitude less than 30 degrees above the horizon

5D/Brorsen (Lost)

5D/Brorsen (Lost)
R.A: 23h 09m 35s   Dec: -31° 26’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.3 (JPL)  brightening
in Sculptor   object currently below the horizon

Comet C/2021 E3 (ZTF)

C/2021 E3 (ZTF)
R.A: 09h 50m 37s   Dec: -41° 24’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.4 (JPL)  fading
in Vela   object currently below the horizon

Comet 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 18h 24m 53s   Dec: -32° 23’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 14.7 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 01h 41m 07s   Dec: +04° 05’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.2 (JPL)  fading
in Pisces   object currently below the horizon

Comet 81P/Wild 2

81P/Wild 2
R.A: 08h 25m 33s   Dec: +18° 24’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.3 (JPL)  brightening
in Cancer   current altitude greater than 30 degrees above the horizon

Comet C/2020 Y2 (ATLAS)

C/2020 Y2 (ATLAS)
R.A: 06h 48m 34s   Dec: -41° 00’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.6 (JPL) 
in Puppis   object currently below the horizon

Comet 116P/Wild 4

116P/Wild 4
R.A: 12h 24m 08s   Dec: -02° 49’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 15.8 (JPL)  fading
in Virgo   current altitude less than 30 degrees above the horizon

Comet 9P/Tempel 1

9P/Tempel 1
R.A: 22h 55m 24s   Dec: -27° 31’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.1 (JPL)  fading
in Pisces Austrinus   object currently below the horizon

Comet 29P/Schwassmann-Wachmann 1

29P/Schwassmann-Wachmann 1
R.A: 06h 29m 08s   Dec: +29° 04’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.3 (JPL) 
in Auriga   current altitude greater than 30 degrees above the horizon

Comet 135P/Shoemaker-Levy 8

135P/Shoemaker-Levy 8
R.A: 16h 25m 06s   Dec: -15° 43’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.4 (JPL)  fading
in Ophiucus   object currently below the horizon

Comet C/2020 F5 (MASTER)

C/2020 F5 (MASTER)
R.A: 00h 01m 26s   Dec: +14° 07’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 16.5 (JPL) 
in Pegasus   object currently below the horizon
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