Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 210 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 C/2016 A1 (PANSTARRS)

C/2016 A1 (PANSTARRS)
R.A: 22h 43m 22s   Dec: +57° 32’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.5 (JPL)  fading
in Cepheus   current altitude less than 30 degrees above the horizon

Comet 354P/LINEAR

354P/LINEAR
R.A: 13h 48m 32s   Dec: -15° 45’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.5 (JPL)  brightening
in Virgo   current altitude less than 30 degrees above the horizon

Comet C/2020 K8 (Catalina-ATLAS)

C/2020 K8 (Catalina-ATLAS)
R.A: 15h 23m 00s   Dec: -04° 07’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.6 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet 78P/Gehrels 2

78P/Gehrels 2
R.A: 12h 40m 22s   Dec: -08° 08’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.7 (JPL)  brightening
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 116P/Wild 4

116P/Wild 4
R.A: 03h 38m 33s   Dec: +22° 46’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL) 
in Taurus   object currently below the horizon

Comet C/2018 W2 (Africano)

C/2018 W2 (Africano)
R.A: 17h 17m 41s   Dec: -79° 48’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL)  fading
in Apus   object currently below the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 20h 02m 42s   Dec: -35° 56’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet C/2018 A3 (ATLAS)

C/2018 A3 (ATLAS)
R.A: 00h 24m 22s   Dec: +01° 39’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL)  fading
in Pisces   object currently below the horizon

Comet 68P/Klemola

68P/Klemola
R.A: 04h 57m 40s   Dec: +09° 15’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL)  fading
in Orion   object currently below the horizon

Comet C/2015 V2 (Johnson)

C/2015 V2 (Johnson)
R.A: 02h 09m 03s   Dec: -30° 05’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL) 
in Fornax   object currently below the horizon

Comet C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 16h 42m 14s   Dec: +03° 05’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet P/2017 S5 (ATLAS)

P/2017 S5 (ATLAS)
R.A: 13h 42m 22s   Dec: -21° 36’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL)  brightening
in Virgo   current altitude less than 30 degrees above the horizon

Comet 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 00h 09m 32s   Dec: +08° 16’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  brightening
in Pisces   object currently below the horizon

Comet 77P/Longmore

77P/Longmore
R.A: 02h 51m 35s   Dec: +38° 26’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  fading
in Perseus   current altitude less than 30 degrees above the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 03h 09m 20s   Dec: +15° 20’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL) 
in Aries   object currently below the horizon

Comet C/2020 F3 (NEOWISE)

C/2020 F3 (NEOWISE)
R.A: 16h 38m 05s   Dec: -24° 47’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL)  fading
in Ophiucus   object currently below the horizon

Comet 81P/Wild 2

81P/Wild 2
R.A: 01h 00m 13s   Dec: +03° 17’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Pisces   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 21h 00m 55s   Dec: -25° 36’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL)  brightening
in Capricornus   object currently below the horizon

Comet C/2020 N2 (ATLAS)

C/2020 N2 (ATLAS)
R.A: 15h 59m 32s   Dec: -09° 26’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet 249P/LINEAR

249P/LINEAR
R.A: 04h 58m 59s   Dec: +16° 42’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL)  fading
in Taurus   object currently below the horizon
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