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Comets

Browse and discover detailed information about 168 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/2017 K2 (PANSTARRS)

C/2017 K2 (PANSTARRS)
R.A: 17h 12m 43s   Dec: +49° 19’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.3 (JPL) 
in Hercules   current altitude less than 30 degrees above the horizon

Comet C/2018 A3 (ATLAS)

C/2018 A3 (ATLAS)
R.A: 02h 41m 27s   Dec: +47° 23’ 20”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.5 (JPL)  fading
in Perseus   current altitude greater than 30 degrees above the horizon

Comet C/2018 R3 (Lemmon)

C/2018 R3 (Lemmon)
R.A: 10h 50m 39s   Dec: -04° 04’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.6 (JPL)  fading
in Sextans   current altitude less than 30 degrees above the horizon

Comet C/2016 N6 (PANSTARRS)

C/2016 N6 (PANSTARRS)
R.A: 06h 37m 39s   Dec: -45° 47’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.6 (JPL)  fading
in Puppis   object currently below the horizon

Comet 261P/Larson

261P/Larson
R.A: 03h 46m 07s   Dec: +29° 16’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.7 (JPL)  fading
in Taurus   current altitude greater than 30 degrees above the horizon

Comet C/2019 K4

C/2019 K4
R.A: 23h 18m 57s   Dec: -11° 38’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.7 (JPL)  fading
in Aquarius   object currently below the horizon

Comet C/2015 O1 (PANSTARRS)

C/2015 O1 (PANSTARRS)
R.A: 09h 20m 49s   Dec: +24° 16’ 18”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.8 (JPL) 
in Cancer   current altitude greater than 30 degrees above the horizon

Comet C/2019 L3 (ATLAS)

C/2019 L3
R.A: 22h 05m 09s   Dec: +45° 57’ 44”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 17.9 (JPL) 
in Lacerta   current altitude less than 30 degrees above the horizon

Comet C/2019 F1 (ATLAS-Africano)

C/2019 F1
R.A: 14h 05m 31s   Dec: -04° 20’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.0 (JPL)  brightening
in Virgo   object currently below the horizon

Comet C/2018 X2 (Fitzsimmons)

C/2018 X2 (Fitzsimmons)
R.A: 12h 19m 24s   Dec: -08° 58’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.1 (JPL)  fading
in Virgo   current altitude less than 30 degrees above the horizon

Comet 65P/Gunn

65P/Gunn
R.A: 02h 42m 01s   Dec: +10° 22’ 50”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.3 (JPL) 
in Cetus   current altitude less than 30 degrees above the horizon

Comet C/2017 Y2 (PANSTARRS)

C/2017 Y2 (PANSTARRS)
R.A: 19h 32m 48s   Dec: +32° 28’ 01”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL) 
in Cygnus   object currently below the horizon

Comet C/2014 F3 (Sheppard-Trujillo)

C/2014 F3 (Sheppard-Trujillo)
R.A: 18h 13m 23s   Dec: -27° 54’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.4 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
R.A: 15h 23m 06s   Dec: +19° 16’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.5 (JPL)  fading
in Serpens   current altitude less than 30 degrees above the horizon

Comet 74P/Smirnova-Chernykh

74P/Smirnova-Chernykh
R.A: 16h 11m 21s   Dec: -20° 48’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.6 (JPL)  fading
in Scorpius   object currently below the horizon

Comet C/2016 A1 (PANSTARRS)

C/2016 A1 (PANSTARRS)
R.A: 03h 40m 31s   Dec: +81° 16’ 47”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 18.7 (JPL) 
in Cepheus   current altitude greater than 30 degrees above the horizon

Comet C/2019 J2 (Palomar)

C/2019 J2
R.A: 14h 24m 01s   Dec: +08° 51’ 32”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.0 (JPL)  fading
in Bootes   current altitude less than 30 degrees above the horizon

Comet 117P/Helin-Roman-Alu 1

117P/Helin-Roman-Alu 1
R.A: 10h 22m 17s   Dec: +18° 27’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL) 
in Leo   current altitude greater than 30 degrees above the horizon

Comet Encke (2P/Encke)

Encke's Comet
R.A: 23h 12m 31s   Dec: +02° 40’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL)  fading
in Pisces   object currently below the horizon

Comet C/2019 B3 (PANSTARRS)

C/2019 B3 (PANSTARRS)
R.A: 12h 08m 59s   Dec: -45° 03’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 19.1 (JPL) 
in Centaurus   object currently below the horizon
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