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Comets

Browse and discover detailed information about 197 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/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 22h 44m 51s   Dec: -07° 34’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL)  brightening
in Aquarius   object currently below the horizon

Comet 378P/McNaught

378P/McNaught
R.A: 23h 14m 46s   Dec: -20° 39’ 33”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.9 (JPL) 
in Aquarius   object currently below the horizon

Comet 110P/Hartley 3

110P/Hartley 3
R.A: 03h 17m 08s   Dec: +25° 24’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.0 (JPL)  brightening
in Aries   current altitude greater than 30 degrees above the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 10h 21m 46s   Dec: +14° 31’ 01”
Observed Magnitude 18.0 (COBS)
Estimated Magnitude 18.3 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet 135P/Shoemaker-Levy 8

135P/Shoemaker-Levy 8
R.A: 09h 38m 08s   Dec: +08° 57’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.0 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet 16P/Brooks 2

16P/Brooks 2
R.A: 02h 49m 24s   Dec: +14° 14’ 25”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL) 
in Aries   current altitude less than 30 degrees above the horizon

Comet 402P/LINEAR

402P/LINEAR
R.A: 04h 13m 57s   Dec: -01° 22’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL) 
in Eridanus   current altitude less than 30 degrees above the horizon

Comet C/2020 F2 (ATLAS)

C/2020 F2 (ATLAS)
R.A: 14h 53m 39s   Dec: -08° 10’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL) 
in Libra   object currently below the horizon

Comet 8P/Tuttle

8P/Tuttle
R.A: 02h 32m 39s   Dec: +45° 26’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.2 (JPL)  brightening
in Andromeda   current altitude greater than 30 degrees above the horizon

Comet C/2021 D2 (ZTF)

C/2021 D2 (ZTF)
R.A: 21h 11m 56s   Dec: +52° 24’ 12”
Observed Magnitude 19.5 (COBS)
Estimated Magnitude 18.2 (JPL)  brightening
in Cygnus   current altitude less than 30 degrees above the horizon

Comet 19P/Borrelly

19P/Borrelly
R.A: 22h 53m 03s   Dec: -34° 51’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL)  brightening
in Pisces Austrinus   object currently below the horizon

Comet 106P/Schuster

106P/Schuster
R.A: 01h 08m 34s   Dec: -06° 36’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL)  brightening
in Cetus   object currently below the horizon

Comet 44P/Reinmuth 2

44P/Reinmuth 2
R.A: 16h 47m 40s   Dec: -27° 42’ 28”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL)  brightening
in Scorpius   object currently below the horizon

Comet C/2020 M3 (ATLAS)

C/2020 M3 (ATLAS)
R.A: 08h 26m 20s   Dec: +39° 31’ 14”
Observed Magnitude 18.4 (COBS)
Estimated Magnitude 20.3 (JPL)  fading
in Lynx   current altitude greater than 30 degrees above the horizon

Comet C/2021 E3 (ZTF)

C/2021 E3 (ZTF)
R.A: 20h 59m 09s   Dec: +36° 00’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL)  brightening
in Cygnus   object currently below the horizon

Comet 398P/Boattini

398P/Boattini
R.A: 09h 52m 11s   Dec: +22° 21’ 05”
Observed Magnitude 18.6 (COBS)
Estimated Magnitude 19.8 (JPL)  fading
in Leo   current altitude greater than 30 degrees above the horizon

Comet SWAN (C/2020 F8)

C/2020 F8 (SWAN)
R.A: 04h 29m 17s   Dec: -05° 24’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL)  fading
in Eridanus   current altitude less than 30 degrees above the horizon

Comet 88P/Howell

88P/Howell
R.A: 02h 54m 07s   Dec: +15° 45’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL)  fading
in Aries   current altitude less than 30 degrees above the horizon

Comet 108P/Ciffreo

108P/Ciffreo
R.A: 00h 46m 25s   Dec: -03° 48’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL)  brightening
in Cetus   object currently below the horizon

Comet C/2019 E3 (ATLAS)

C/2019 E3 (ATLAS)
R.A: 08h 47m 07s   Dec: -53° 54’ 02”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL) 
in Vela   object currently below the horizon
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