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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/2019 J2 (Palomar)

C/2019 J2 (Palomar)
R.A: 12h 32m 03s   Dec: -41° 52’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.1 (JPL) 
in Centaurus   object currently below the horizon

Comet 71P/Clark

71P/Clark
R.A: 07h 06m 03s   Dec: +31° 44’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Gemini   current altitude less than 30 degrees above the horizon

Comet C/2018 Y1 (Iwamoto)

C/2018 Y1 (Iwamoto)
R.A: 00h 08m 52s   Dec: +16° 22’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL) 
in Pegasus   object currently below the horizon

Comet C/2019 J3 (ATLAS)

C/2019 J3 (ATLAS)
R.A: 11h 47m 17s   Dec: +56° 06’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.3 (JPL) 
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet 14P/Wolf

14P/Wolf
R.A: 10h 26m 28s   Dec: -15° 49’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet 49P/Arend-Rigaux

49P/Arend-Rigaux
R.A: 17h 42m 28s   Dec: -12° 20’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL) 
in Serpens   current altitude less than 30 degrees above the horizon

Comet 252P/LINEAR

252P/LINEAR
R.A: 02h 25m 34s   Dec: +04° 45’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.4 (JPL)  brightening
in Cetus   object currently below the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 35m 35s   Dec: -17° 08’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  fading
in Capricornus   object currently below the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 13m 12s   Dec: +36° 46’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.6 (JPL) 
in Triangulum   object currently below the horizon

Comet C/2015 ER61 (PANSTARRS)

C/2015 ER61 (PANSTARRS)
R.A: 05h 47m 42s   Dec: +19° 32’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.6 (JPL) 
in Taurus   current altitude less than 30 degrees above the horizon

Comet 32P/Comas Sola

32P/Comas Sola
R.A: 21h 01m 21s   Dec: -25° 35’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.7 (JPL) 
in Capricornus   object currently below the horizon

Comet 58P/Jackson-Neujmin

58P/Jackson-Neujmin
R.A: 06h 31m 51s   Dec: +08° 01’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  fading
in Monoceros   object currently below the horizon

Comet C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov)
R.A: 17h 08m 54s   Dec: -57° 50’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.9 (JPL)  fading
in Ara   object currently below the horizon

Comet 48P/Johnson

48P/Johnson
R.A: 08h 37m 44s   Dec: +22° 51’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.9 (JPL) 
in Cancer   current altitude less than 30 degrees above the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 20h 41m 08s   Dec: -19° 29’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.0 (JPL) 
in Capricornus   object currently below the horizon

Comet 114P/Wiseman-Skiff

114P/Wiseman-Skiff
R.A: 14h 21m 23s   Dec: -31° 40’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.0 (JPL) 
in Centaurus   current altitude less than 30 degrees above the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 12h 10m 26s   Dec: -13° 18’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.1 (JPL) 
in Corvus   current altitude less than 30 degrees above the horizon

Comet C/2017 T3 (ATLAS)

C/2017 T3 (ATLAS)
R.A: 16h 09m 53s   Dec: +11° 26’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.1 (JPL) 
in Serpens   current altitude greater than 30 degrees above the horizon

Comet C/2019 K5 (Young)

C/2019 K5 (Young)
R.A: 06h 35m 51s   Dec: +05° 57’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.1 (JPL)  fading
in Monoceros   object currently below the horizon

Comet C/2013 X1 (PANSTARRS)

C/2013 X1 (PANSTARRS)
R.A: 11h 51m 08s   Dec: -13° 29’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.2 (JPL) 
in Crater   current altitude less than 30 degrees above the horizon
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