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

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/2018 W1 (Catalina)

C/2018 W1 (Catalina)
R.A: 16h 23m 14s   Dec: -01° 33’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.4 (JPL) 
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet C/2019 J1 (Lemmon)

C/2019 J1 (Lemmon)
R.A: 00h 51m 47s   Dec: -19° 29’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.8 (JPL)  fading
in Cetus   object currently below the horizon

Comet P/2016 BA14 (PANSTARRS)

P/2016 BA14 (PANSTARRS)
R.A: 02h 42m 42s   Dec: -05° 37’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.9 (JPL)  brightening
in Cetus   object currently below the horizon

Comet 226P/Pigott-LINEAR-Kowalski

226P/Pigott-LINEAR-Kowalski
R.A: 15h 51m 36s   Dec: -16° 28’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.0 (JPL)  brightening
in Libra   current altitude less than 30 degrees above the horizon

Comet 364P/2018 A2 (PANSTARRS)

364P/2018 A2 (PANSTARRS)
R.A: 04h 31m 29s   Dec: +29° 49’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.4 (JPL)  fading
in Taurus   current altitude less than 30 degrees above the horizon

Comet 23P/Brorsen-Metcalf

23P/Brorsen-Metcalf
R.A: 17h 25m 08s   Dec: -37° 56’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.6 (JPL) 
in Scorpius   object currently below the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 15h 50m 59s   Dec: -17° 56’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.7 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 00h 19m 05s   Dec: -07° 26’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.1 (JPL)  fading
in Cetus   object currently below the horizon

Comet C/2017 K4 (ATLAS)

C/2017 K4 (ATLAS)
R.A: 04h 26m 17s   Dec: +34° 18’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.3 (JPL)  fading
in Perseus   current altitude less than 30 degrees above the horizon

Comet 26P/Grigg-Skjellerup

26P/Grigg-Skjellerup
R.A: 01h 00m 55s   Dec: +07° 57’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.3 (JPL)  fading
in Pisces   object currently below the horizon

Comet C/2018 A1 (PANSTARRS)

C/2018 A1 (PANSTARRS)
R.A: 11h 38m 33s   Dec: -35° 26’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.9 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet C/2019 D1 (Flewelling)

C/2019 D1 (Flewelling)
R.A: 03h 37m 39s   Dec: +11° 20’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.9 (JPL)  fading
in Taurus   object currently below the horizon

Comet C/2019 Y1 (ATLAS)

C/2019 Y1 (ATLAS)
R.A: 14h 46m 29s   Dec: -21° 57’ 43”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.0 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet 24P/Schaumasse

24P/Schaumasse
R.A: 20h 43m 50s   Dec: -25° 55’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.6 (JPL) 
in Capricornus   object currently below the horizon

Comet 41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
R.A: 02h 10m 44s   Dec: +03° 20’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.7 (JPL) 
in Cetus   object currently below the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 15h 14m 36s   Dec: -34° 04’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.8 (JPL)  brightening
in Lupus   object currently below the horizon

Comet 46P/Wirtanen

46P/Wirtanen
R.A: 17h 01m 46s   Dec: -20° 06’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.0 (JPL) 
in Ophiucus   object currently below the horizon

Comet 209P/LINEAR

209P/LINEAR
R.A: 00h 48m 40s   Dec: -09° 57’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL)  fading
in Cetus   object currently below the horizon

Comet 20D/Westphal

20D/Westphal
R.A: 14h 11m 38s   Dec: -52° 17’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL) 
in Centaurus   object currently below the horizon

Comet 60P/Tsuchinshan 2

60P/Tsuchinshan 2
R.A: 19h 00m 45s   Dec: -22° 03’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.4 (JPL) 
in Sagittarius   object currently below the horizon
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