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Comets

Browse and discover detailed information about 171 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 C/2019 L3 (ATLAS)

C/2019 L3
R.A: 22h 08m 42s   Dec: +41° 31’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL) 
in Lacerta   current altitude less than 30 degrees above the horizon

Comet C/2019 K5 (Young)

C/2019 K5
R.A: 03h 08m 44s   Dec: -01° 46’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  fading
in Eridanus   current altitude less than 30 degrees above the horizon

Comet C/2016 N6 (PANSTARRS)

C/2016 N6 (PANSTARRS)
R.A: 05h 22m 12s   Dec: -55° 46’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  fading
in Pictor   object currently below the horizon

Comet C/2018 A3 (ATLAS)

C/2018 A3 (ATLAS)
R.A: 01h 05m 39s   Dec: +31° 20’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  fading
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 88P/Howell

88P/Howell
R.A: 12h 50m 38s   Dec: -01° 26’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL)  brightening
in Virgo   object currently below the horizon

Comet C/2017 Y2 (PANSTARRS)

C/2017 Y2 (PANSTARRS)
R.A: 19h 34m 38s   Dec: +22° 26’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL) 
in Vulpecula   object currently below the horizon

Comet 65P/Gunn

65P/Gunn
R.A: 02h 08m 12s   Dec: +09° 08’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet C/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 18h 55m 56s   Dec: -26° 37’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL) 
in Sagittarius   object currently below the horizon

Comet 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 10h 54m 11s   Dec: +17° 08’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet 25D/Neujmin 2

25D/Neujmin 2
R.A: 16h 24m 44s   Dec: -24° 53’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL)  fading
in Scorpius   object currently below the horizon

Comet C/2018 R3 (Lemmon)

C/2018 R3 (Lemmon)
R.A: 11h 04m 35s   Dec: -24° 53’ 28”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL)  fading
in Crater   object currently below the horizon

Comet C/2019 T3 (ATLAS)

C/2019 T3
R.A: 02h 36m 43s   Dec: +83° 06’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL) 
in Cepheus   current altitude greater than 30 degrees above the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 14h 43m 33s   Dec: -27° 37’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.8 (JPL)  fading
in Hydra   object currently below the horizon

Comet C/2019 B3 (PANSTARRS)

C/2019 B3 (PANSTARRS)
R.A: 12h 39m 41s   Dec: -53° 48’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.9 (JPL)  brightening
in Centaurus   object currently below the horizon

Comet C/2018 X2 (Fitzsimmons)

C/2018 X2 (Fitzsimmons)
R.A: 13h 52m 40s   Dec: -24° 48’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.9 (JPL)  fading
in Hydra   object currently below the horizon

Comet 74P/Smirnova-Chernykh

74P/Smirnova-Chernykh
R.A: 17h 22m 53s   Dec: -23° 33’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL) 
in Ophiucus   object currently below the horizon

Comet C/2016 A1 (PANSTARRS)

C/2016 A1 (PANSTARRS)
R.A: 00h 05m 20s   Dec: +75° 31’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL) 
in Cepheus   current altitude greater than 30 degrees above the horizon

Comet C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 16h 05m 11s   Dec: +14° 33’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  fading
in Serpens   object currently below the horizon

C/2019 V1 (Borisov)

C/2019 V1
R.A: 05h 39m 03s   Dec: +26° 48’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  brightening
in Taurus   current altitude greater than 30 degrees above the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 22h 46m 31s   Dec: -06° 50’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  brightening
in Aquarius   object currently below the horizon
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