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Comets

Browse and discover detailed information about 148 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 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 07h 55m 27s   Dec: +28° 53’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL)  fading
in Gemini   current altitude less than 30 degrees above the horizon

Comet C/2019 E3 (ATLAS)

Comet C/2019 E3 (ATLAS)
R.A: 09h 57m 38s   Dec: -35° 48’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL) 
in Antlia   object currently below the horizon

Comet C/2017 Y2 (PANSTARRS)

C/2017 Y2 (PANSTARRS)
R.A: 21h 58m 32s   Dec: +41° 48’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.4 (JPL)  brightening
in Lacerta   current altitude greater than 30 degrees above the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 13h 54m 20s   Dec: +18° 02’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL)  fading
in Bootes   object currently below the horizon

Comet C/2016 Q2 (PANSTARRS)

C/2016 Q2 (PANSTARRS)
R.A: 20h 37m 23s   Dec: +15° 53’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL) 
in Delphinus   current altitude less than 30 degrees above the horizon

Comet 64P/Swift-Gehrels

64P/Swift-Gehrels
R.A: 07h 01m 25s   Dec: +21° 34’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.6 (JPL)  fading
in Gemini   current altitude less than 30 degrees above the horizon

Comet C/2018 E1 (ATLAS)

C/2018 E1 (ATLAS)
R.A: 09h 56m 42s   Dec: +33° 24’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.9 (JPL)  fading
in Leo Minor   current altitude less than 30 degrees above the horizon

Comet C/2019 B1 (Africano)

C/2019 B1 (Africano)
R.A: 05h 02m 20s   Dec: +10° 43’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.9 (JPL)  fading
in Orion   current altitude less than 30 degrees above the horizon

Comet 66P/du Toit

66P/du Toit
R.A: 02h 17m 59s   Dec: +18° 36’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.7 (JPL)  fading
in Aries   current altitude greater than 30 degrees above the horizon

Comet C/2013 YG46 (Spacewatch)

C/2013 YG46 (Spacewatch)
R.A: 05h 26m 06s   Dec: +27° 56’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

Comet 269P/Jedicke

269P/Jedicke
R.A: 16h 06m 21s   Dec: -21° 04’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL) 
in Scorpius   object currently below the horizon

Comet C/2016 A3 (PANSTARRS)

C/2016 A3 (PANSTARRS)
R.A: 16h 02m 48s   Dec: -12° 51’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.9 (JPL) 
in Scorpius   object currently below the horizon

Comet 88P/Howell

88P/Howell
R.A: 09h 00m 18s   Dec: +21° 51’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.9 (JPL) 
in Cancer   object currently below the horizon

Comet C/2015 ER61 (PANSTARRS)

C/2015 ER61 (PANSTARRS)
R.A: 05h 00m 33s   Dec: +20° 12’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

Comet 290P/Jager

290P/Jager
R.A: 19h 47m 00s   Dec: -26° 43’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL)  brightening
in Sagittarius   object currently below the horizon

Comet C/2017 S7 (Lemmon)

C/2017 S6 (Lemmon)
R.A: 03h 38m 52s   Dec: -17° 08’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.0 (JPL)  fading
in Eridanus   current altitude less than 30 degrees above the horizon

Comet Encke (2P/Encke)

Encke's Comet
R.A: 23h 50m 02s   Dec: +01° 41’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL) 
in Pisces   current altitude greater than 30 degrees above the horizon

Comet C/2017 K6 (Jacques)

C/2017 K6 (Jacques)
R.A: 07h 30m 40s   Dec: +60° 03’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL)  fading
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Comet C/2013 X1 (PANSTARRS)

C/2013 X1 (PANSTARRS)
R.A: 11h 48m 56s   Dec: -15° 20’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL) 
in Crater   object currently below the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 22h 06m 29s   Dec: -16° 42’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.3 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon
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