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Comets

Browse and discover detailed information about 218 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 64P/Swift-Gehrels

64P/Swift-Gehrels
R.A: 13h 29m 14s   Dec: -17° 52’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.4 (JPL) 
in Virgo   current altitude less than 30 degrees above the horizon

Comet 132P/Helin-Roman-Alu 2

132P/Helin-Roman-Alu 2
R.A: 10h 08m 52s   Dec: +08° 43’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.5 (JPL)  fading
in Leo   current altitude less than 30 degrees above the horizon

Comet 45P/Honda-Mrkos-Pajdusakova

45P/Honda-Mrkos-Pajdusakova
R.A: 12h 45m 44s   Dec: -01° 40’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL)  fading
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 333P/LINEAR

333P/LINEAR
R.A: 15h 53m 11s   Dec: -52° 52’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.8 (JPL) 
in Norma   object currently below the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 11h 38m 44s   Dec: +11° 21’ 40”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 24.9 (JPL)  fading
in Leo   current altitude greater than 30 degrees above the horizon

Comet 123P/West-Hartley

123P/West-Hartley
R.A: 21h 49m 54s   Dec: -31° 09’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL)  fading
in Pisces Austrinus   object currently below the horizon

Comet 249P/LINEAR

249P/LINEAR
R.A: 08h 57m 34s   Dec: +09° 56’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL) 
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2019 U6 (Lemmon)

C/2019 U6 (Lemmon)
R.A: 21h 56m 56s   Dec: +53° 48’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL) 
in Cygnus   current altitude less than 30 degrees above the horizon

Comet 68P/Klemola

68P/Klemola
R.A: 08h 35m 52s   Dec: +09° 49’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.2 (JPL) 
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto)

C/2018 V1 (Machholz-Fujikawa-Iwamoto)
R.A: 15h 10m 56s   Dec: -50° 59’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL) 
in Lupus   object currently below the horizon

Comet 125P/Spacewatch

125P/Spacewatch
R.A: 07h 33m 51s   Dec: +13° 31’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL)  brightening
in Gemini   current altitude less than 30 degrees above the horizon

Comet Halley (1P/Halley)

Halley's Comet
R.A: 08h 24m 59s   Dec: +02° 29’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.6 (JPL) 
in Hydra   current altitude less than 30 degrees above the horizon

Comet Hale-Bopp (C/1995 O1)

C/1995 O1 (Hale-Bopp)
R.A: 22h 07m 08s   Dec: -85° 53’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.7 (JPL) 
in Octans   object currently below the horizon

Comet 398P/Boattini

398P/Boattini
R.A: 15h 45m 02s   Dec: -11° 07’ 10”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 25.7 (JPL)  fading
in Libra   current altitude less than 30 degrees above the horizon

Comet 25D/Neujmin 2 (Lost)

25D/Neujmin 2 (Lost)
R.A: 23h 04m 38s   Dec: -02° 24’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.0 (JPL) 
in Pisces   object currently below the horizon

Comet 207P/NEAT

207P/NEAT
R.A: 20h 50m 25s   Dec: -07° 46’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.0 (JPL) 
in Aquarius   object currently below the horizon

Comet 201P/LONEOS

201P/LONEOS
R.A: 13h 27m 49s   Dec: -09° 49’ 31”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.1 (JPL)  fading
in Virgo   current altitude less than 30 degrees above the horizon

Comet 37P/Forbes

37P/Forbes
R.A: 09h 31m 21s   Dec: +15° 14’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.1 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov)
R.A: 17h 21m 28s   Dec: -55° 27’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.3 (JPL)  fading
in Ara   object currently below the horizon

Comet 210P/Christensen

210P/Christensen
R.A: 16h 27m 53s   Dec: -18° 53’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 26.5 (JPL)  fading
in Ophiucus   current altitude less than 30 degrees above the horizon
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