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Comets

Browse and discover detailed information about 171 of the most interesting comets. Comets are listed in order of decreasing brightness.

Search Comets:
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 F1 (Grauer)

C/2018 F1 (Grauer)
R.A: 20h 53m 14s   Dec: +06° 56’ 52”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.4 (JPL)  fading
in Delphinus   object currently below the horizon

Comet 48P/Johnson

48P/Johnson
R.A: 06h 12m 06s   Dec: +17° 21’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.5 (JPL)  fading
in Orion   object currently below the horizon

Comet C/2019 J3 (ATLAS)

C/2019 J3 (ATLAS)
R.A: 15h 50m 25s   Dec: +12° 35’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.6 (JPL)  fading
in Serpens   current altitude greater than 30 degrees above the horizon

Comet 10P/Tempel 2

10P/Tempel 2
R.A: 12h 37m 16s   Dec: +06° 04’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL)  brightening
in Virgo   current altitude greater than 30 degrees above the horizon

Comet 22P/Kopff

22P/Kopff
R.A: 08h 57m 49s   Dec: +17° 23’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 20.8 (JPL)  brightening
in Cancer   current altitude less than 30 degrees above the horizon

Comet C/2017 T3 (ATLAS)

C/2017 T3 (ATLAS)
R.A: 15h 50m 06s   Dec: +01° 52’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.1 (JPL)  fading
in Serpens   current altitude greater than 30 degrees above the horizon

Comet C/2017 S7 (Lemmon)

C/2017 S6 (Lemmon)
R.A: 03h 12m 18s   Dec: -34° 00’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.2 (JPL)  fading
in Fornax   object currently below the horizon

Comet P/2017 P1 (PANSTARRS)

P/2017 P1 (PANSTARRS)
R.A: 01h 16m 22s   Dec: +10° 00’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL)  fading
in Pisces   object currently below the horizon

Comet 4P/Faye

4P/Faye
R.A: 17h 05m 42s   Dec: -16° 53’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.4 (JPL)  brightening
in Ophiucus   current altitude less than 30 degrees above the horizon

Comet 119P/Parker-Hartley

119P/Parker-Hartley
R.A: 17h 59m 53s   Dec: -22° 04’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.5 (JPL) 
in Sagittarius   current altitude less than 30 degrees above the horizon

Comet C/2013 US10 (CATALINA)

C/2013 US10 (CATALINA)
R.A: 02h 26m 11s   Dec: +40° 02’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL) 
in Andromeda   current altitude less than 30 degrees above the horizon

Comet C/2019 D1 (Flewelling)

C/2019 D1 (Flewelling)
R.A: 00h 45m 47s   Dec: +20° 09’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.6 (JPL)  fading
in Pisces   object currently below the horizon

Comet C/2019 J1 (Lemmon)

C/2019 J1
R.A: 21h 38m 21s   Dec: -32° 59’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Pisces Austrinus   object currently below the horizon

Comet 38P/Stephan-Oterma

38P/Stephan-Oterma
R.A: 13h 46m 12s   Dec: +05° 22’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL) 
in Virgo   current altitude greater than 30 degrees above the horizon

Comet C/2012 K1 (PANSTARRS)

C/2012 K1 (PANSTARRS)
R.A: 21h 34m 22s   Dec: -18° 33’ 16”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.7 (JPL)  fading
in Capricornus   object currently below the horizon

Comet 9P/Tempel 1

9P/Tempel 1
R.A: 05h 27m 58s   Dec: +26° 15’ 49”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.8 (JPL) 
in Taurus   object currently below the horizon

Comet 21P/Giacobini-Zinner

21P/Giacobini-Zinner
R.A: 11h 03m 17s   Dec: -16° 03’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL) 
in Crater   current altitude less than 30 degrees above the horizon

Comet 64P/Swift-Gehrels

64P/Swift-Gehrels
R.A: 11h 41m 00s   Dec: -04° 34’ 53”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 21.9 (JPL) 
in Virgo   current altitude less than 30 degrees above the horizon

Comet 110P/Hartley 3

110P/Hartley 3
R.A: 20h 53m 13s   Dec: -10° 57’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.0 (JPL) 
in Aquarius   object currently below the horizon

Comet C/2018 E1 (ATLAS)

C/2018 E1 (ATLAS)
R.A: 12h 34m 36s   Dec: +35° 54’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 22.2 (JPL) 
in Canes Venatici   current altitude greater than 30 degrees above the horizon
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