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Comets

Browse and discover detailed information about 176 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 (ATLAS)
R.A: 23h 27m 36s   Dec: +43° 40’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.6 (JPL)  brightening
in Andromeda   current altitude less than 30 degrees above the horizon

Comet C/2016 M1 (PANSTARRS)

C/2016 M1 (PANSTARRS)
R.A: 05h 32m 42s   Dec: -18° 06’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL)  fading
in Lepus   object currently below the horizon

Comet 249P/LINEAR

249P/LINEAR
R.A: 10h 55m 26s   Dec: -11° 42’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL)  brightening
in Crater   current altitude less than 30 degrees above the horizon

Comet 114P/Wiseman-Skiff

114P/Wiseman-Skiff
R.A: 06h 04m 36s   Dec: +11° 32’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.9 (JPL)  fading
in Orion   current altitude less than 30 degrees above the horizon

Comet C/2017 Y2 (PANSTARRS)

C/2017 Y2 (PANSTARRS)
R.A: 20h 02m 56s   Dec: +21° 14’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.9 (JPL) 
in Sagitta   object currently below the horizon

Comet 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 10h 14m 18s   Dec: +22° 08’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.0 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet 68P/Klemola

68P/Klemola
R.A: 01h 36m 04s   Dec: +05° 05’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.0 (JPL)  fading
in Pisces   object currently below the horizon

Comet C/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 20h 21m 20s   Dec: -22° 59’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL) 
in Capricornus   object currently below the horizon

Comet C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov)
R.A: 12h 44m 09s   Dec: -69° 57’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  fading
in Musca   object currently below the horizon

Comet 28P/Neujmin 1

28P/Neujmin 1
R.A: 15h 02m 18s   Dec: -32° 46’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  brightening
in Lupus   object currently below the horizon

Comet 297P/Beshore (2008 J2)

297P/Beshore (2008 J2)
R.A: 09h 14m 27s   Dec: +27° 04’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL) 
in Cancer   current altitude greater than 30 degrees above the horizon

Comet C/2018 W2 (Africano)

C/2018 W2 (Africano)
R.A: 00h 02m 20s   Dec: -53° 52’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL) 
in Phoenix   object currently below the horizon

Comet C/2019 T4 (ATLAS)

C/2019 T4 (ATLAS)
R.A: 06h 11m 15s   Dec: -30° 17’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL) 
in Columba   object currently below the horizon

Comet 78P/Gehrels 2

78P/Gehrels 2
R.A: 08h 48m 22s   Dec: +10° 35’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL)  fading
in Cancer   current altitude greater than 30 degrees above the horizon

Comet C/2019 B3 (PANSTARRS)

C/2019 B3 (PANSTARRS)
R.A: 11h 38m 29s   Dec: -67° 49’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL) 
in Musca   object currently below the horizon

Comet C/2015 O1 (PANSTARRS)

C/2015 O1 (PANSTARRS)
R.A: 07h 40m 26s   Dec: +22° 35’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL)  fading
in Gemini   current altitude greater than 30 degrees above the horizon

Comet 17P/Holmes

17P/Holmes
R.A: 18h 34m 57s   Dec: -42° 29’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL)  brightening
in Corona Australis   object currently below the horizon

Comet C/2019 T3 (ATLAS)

C/2019 T3 (ATLAS)
R.A: 01h 22m 35s   Dec: +67° 29’ 34”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL) 
in Cassiopeia   current altitude greater than 30 degrees above the horizon

Comet 10P/Tempel 2

10P/Tempel 2
R.A: 12h 35m 21s   Dec: +13° 31’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL)  brightening
in Coma   current altitude greater than 30 degrees above the horizon

Comet 74P/Smirnova-Chernykh

74P/Smirnova-Chernykh
R.A: 19h 12m 33s   Dec: -24° 14’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.8 (JPL)  brightening
in Sagittarius   object currently below the horizon
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