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🌎  Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 211 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 25D/Neujmin 2 (Lost)

25D/Neujmin 2 (Lost)
R.A: 23h 32m 12s   Dec: -00° 29’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.6 (JPL)  brightening
in Pisces   current altitude greater than 30 degrees above the horizon

Comet 37P/Forbes

37P/Forbes
R.A: 07h 37m 18s   Dec: +23° 23’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.7 (JPL) 
in Gemini   object currently below the horizon

Comet 125P/Spacewatch

125P/Spacewatch
R.A: 05h 19m 02s   Dec: +15° 26’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.0 (JPL) 
in Orion   current altitude less than 30 degrees above the horizon

Comet 154P/Brewington

154P/Brewington
R.A: 16h 08m 37s   Dec: -42° 24’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.1 (JPL)  brightening
in Norma   object currently below the horizon

Comet 207P/NEAT

207P/NEAT
R.A: 21h 46m 18s   Dec: -03° 44’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.1 (JPL)  brightening
in Aquarius   current altitude greater than 30 degrees above the horizon

Comet 252P/LINEAR

252P/LINEAR
R.A: 21h 52m 31s   Dec: -02° 57’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.3 (JPL)  fading
in Aquarius   current altitude greater than 30 degrees above the horizon

Comet C/2020 F3 (NEOWISE)

C/2020 F3 (NEOWISE)
R.A: 14h 54m 41s   Dec: -31° 00’ 39”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.4 (JPL)  fading
in Centaurus   object currently below the horizon

Comet 66P/du Toit

66P/du Toit
R.A: 04h 58m 14s   Dec: +37° 15’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL) 
in Auriga   current altitude less than 30 degrees above the horizon

Comet 40P/Vaisala 1

40P/Vaisala 1
R.A: 01h 48m 03s   Dec: +00° 57’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL) 
in Cetus   current altitude less than 30 degrees above the horizon

Comet 23P/Brorsen-Metcalf

23P/Brorsen-Metcalf
R.A: 17h 25m 10s   Dec: -38° 34’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.5 (JPL) 
in Scorpius   object currently below the horizon

Comet C/2021 D1 (SWAN)

C/2021 D1 (SWAN)
R.A: 09h 23m 21s   Dec: +01° 34’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 27.9 (JPL)  fading
in Hydra   object currently below the horizon

Comet 289P/Blanpain

289P/Blanpain
R.A: 17h 10m 20s   Dec: -23° 38’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.3 (JPL) 
in Ophiucus   object currently below the horizon

Comet 161P/Hartley-IRAS

161P/Hartley-IRAS
R.A: 08h 12m 56s   Dec: -51° 47’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.5 (JPL) 
in Carina   object currently below the horizon

Comet 146P/Shoemaker-LINEAR

146P/Shoemaker-LINEAR
R.A: 14h 14m 38s   Dec: -04° 50’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 28.9 (JPL) 
in Virgo   object currently below the horizon

Comet 24P/Schaumasse

24P/Schaumasse
R.A: 22h 22m 01s   Dec: -21° 12’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.6 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 261P/Larson

261P/Larson
R.A: 10h 29m 52s   Dec: +03° 29’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.6 (JPL)  fading
in Sextans   object currently below the horizon

Comet P/2019 Y2 (Fuls)

P/2019 Y2 (Fuls)
R.A: 22h 52m 34s   Dec: -11° 52’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.6 (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon

Comet 20D/Westphal (Lost)

20D/Westphal (Lost)
R.A: 13h 57m 47s   Dec: -53° 36’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 29.8 (JPL) 
in Centaurus   object currently below the horizon

Comet 18D/Perrine-Mrkos (Lost)

18D/Perrine-Mrkos (Lost)
R.A: 15h 29m 51s   Dec: -19° 59’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.1 (JPL)  brightening
in Libra   object currently below the horizon

Comet 11P/Tempel-Swift-LINEAR

11P/Tempel-Swift-LINEAR
R.A: 11h 46m 23s   Dec: -12° 03’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 30.3 (JPL)  fading
in Crater   object currently below the horizon
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