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

Comets

Browse and discover detailed information about 199 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 15P/Finlay

15P/Finlay
R.A: 15h 01m 28s   Dec: -20° 36’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  brightening
in Libra   current altitude less than 30 degrees above the horizon

Comet 32P/Comas Sola

32P/Comas Sola
R.A: 20h 12m 47s   Dec: -29° 29’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL) 
in Sagittarius   object currently below the horizon

Comet C/2019 K5 (Young)

C/2019 K5 (Young)
R.A: 07h 11m 10s   Dec: +06° 13’ 40”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.5 (JPL)  fading
in Canis Minoris   current altitude less than 30 degrees above the horizon

Comet 30P/Reinmuth 1

30P/Reinmuth 1
R.A: 19h 41m 37s   Dec: -22° 04’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.6 (JPL) 
in Sagittarius   object currently below the horizon

Comet C/2020 K3 (Leonard)

C/2020 K3 (Leonard)
R.A: 15h 36m 22s   Dec: +04° 47’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.6 (JPL)  fading
in Serpens   current altitude less than 30 degrees above the horizon

Comet 294P/LINEAR

294P/LINEAR
R.A: 19h 58m 11s   Dec: -19° 42’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.7 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet C/2019 K4

C/2019 K4
R.A: 00h 21m 00s   Dec: -68° 52’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  fading
in Tucana   object currently below the horizon

Comet 71P/Clark

71P/Clark
R.A: 07h 51m 09s   Dec: +27° 56’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  brightening
in Gemini   current altitude greater than 30 degrees above the horizon

Comet 14P/Wolf

14P/Wolf
R.A: 10h 19m 00s   Dec: -11° 16’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL) 
in Sextans   current altitude less than 30 degrees above the horizon

Comet C/2018 L2 (ATLAS)

C/2018 L2 (ATLAS)
R.A: 04h 18m 10s   Dec: +22° 56’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  fading
in Taurus   object currently below the horizon

Comet 52P/Harrington-Abell

52P/Harrington-Abell
R.A: 23h 38m 18s   Dec: +05° 23’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  brightening
in Pisces   object currently below the horizon

Comet C/2017 T3 (ATLAS)

C/2017 T3 (ATLAS)
R.A: 15h 37m 55s   Dec: +10° 04’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.8 (JPL)  fading
in Serpens   current altitude greater than 30 degrees above the horizon

Comet 48P/Johnson

48P/Johnson
R.A: 08h 57m 57s   Dec: +19° 11’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.1 (JPL) 
in Cancer   current altitude greater than 30 degrees above the horizon

Comet 123P/West-Hartley

123P/West-Hartley
R.A: 17h 51m 42s   Dec: -34° 27’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.1 (JPL)  fading
in Scorpius   object currently below the horizon

Comet C/2015 B1 (PANSTARRS)

C/2015 B1 (PANSTARRS)
R.A: 19h 02m 59s   Dec: -38° 32’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.2 (JPL)  fading
in Corona Australis   object currently below the horizon

Comet C/2013 X1 (PANSTARRS)

C/2013 X1 (PANSTARRS)
R.A: 11h 51m 03s   Dec: -12° 18’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.2 (JPL) 
in Crater   current altitude less than 30 degrees above the horizon

Comet 53P/Van Biesbroeck

53P/Van Biesbroeck
R.A: 06h 02m 43s   Dec: +17° 00’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.2 (JPL) 
in Orion   current altitude less than 30 degrees above the horizon

Comet 260P/McNaught

260P/McNaught
R.A: 10h 29m 05s   Dec: +17° 02’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.3 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 11h 47m 37s   Dec: -10° 06’ 30”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.4 (JPL) 
in Crater   current altitude less than 30 degrees above the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 18h 38m 59s   Dec: -32° 37’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 23.6 (JPL)  brightening
in Sagittarius   object currently below the horizon
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