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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:45  ☀️ Transit: 13:03  🌅 Sunset: 19:23

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In Evidence

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Position Calculator
Time: : UTC

Comets

Detailed information about 219 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 P/2016 J3 (STEREO)

P/2016 J3 (STEREO)
R.A: 19h 41m 09s   Dec: -10° 48’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.1 (JPL)  brightening
in Aquila   current altitude less than 30 degrees above the horizon

Comet P/2016 J3 (STEREO = 2021 A3)

P/2016 J3 (STEREO)
R.A: 19h 41m 09s   Dec: -10° 48’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.1 (JPL)  brightening
in Aquila   current altitude less than 30 degrees above the horizon

Comet C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)
R.A: 02h 44m 13s   Dec: -07° 00’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.1 (JPL) 
in Cetus   current altitude less than 30 degrees above the horizon

Comet P/2021 N1 (ZTF)

P/2021 N1 (ZTF)
R.A: 07h 50m 42s   Dec: +19° 32’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.5 (JPL)  fading
in Gemini   object currently below the horizon

Comet 153P/Ikeya-Zhang

153P/Ikeya-Zhang
R.A: 20h 04m 13s   Dec: -31° 42’ 22”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.8 (JPL) 
in Sagittarius   object currently below the horizon

Comet C/1969 Y1 (Bennett)

C/1969 Y1 (Bennett)
R.A: 02h 28m 04s   Dec: +29° 30’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.4 (JPL) 
in Triangulum   current altitude greater than 30 degrees above the horizon

Comet 109P/Swift-Tuttle

109P/Swift-Tuttle
R.A: 09h 36m 08s   Dec: -20° 04’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.7 (JPL) 
in Hydra   object currently below the horizon

Comet C/2021 A4 (NEOWISE)

C/2021 A4 (NEOWISE)
R.A: 21h 51m 21s   Dec: -29° 50’ 36”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 43.6 (JPL)  fading
in Pisces Austrinus   current altitude less than 30 degrees above the horizon

Comet McNaught (C/2006 P1)

C/2006 P1 (McNaught)
R.A: 17h 11m 06s   Dec: -54° 25’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 45.4 (JPL) 
in Ara   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 25m 51s   Dec: -17° 12’ 07”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 46.2 (JPL) 
in Libra   object currently below the horizon

Comet 27P/Crommelin

27P/Crommelin
R.A: 17h 39m 23s   Dec: -17° 03’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 53.7 (JPL) 
in Ophiucus   object currently below the horizon

Comet 205P/Giacobini

205P/Giacobini
R.A: 05h 55m 48s   Dec: +08° 39’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Orion   current altitude less than 30 degrees above the horizon

Comet Great January Comet of 1910 (C/1910 A1)

C/1910 A1 (Great January Comet)
R.A: 20h 04m 49s   Dec: +06° 38’ 15”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Aquila   current altitude less than 30 degrees above the horizon

Comet Skjellerup-Maristany (C/1927 X1)

C/1927 X1 (Skjellerup-Maristany)
R.A: 17h 12m 52s   Dec: -65° 48’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Ara   object currently below the horizon

Comet C/1956 R1 (Arend-Roland)

C/1956 R1 (Arend-Roland)
R.A: 03h 53m 13s   Dec: +68° 46’ 46”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Eclipse comet (Comet C/1948 V1)

C/1948 V1 (Eclipse comet)
R.A: 08h 43m 02s   Dec: -05° 16’ 24”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Hydra   object currently below the horizon

Comet Ikeya-Seki (C/1965 S1)

C/1965 S1 (Ikeya-Seki)
R.A: 06h 43m 25s   Dec: -11° 59’ 03”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Canis Majoris   object currently below the horizon

Comet C/2012 S1 (ISON)

C/2012 S1 (ISON)
R.A: 07h 14m 40s   Dec: +37° 43’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Auriga   current altitude less than 30 degrees above the horizon

Southern Comet (C/1947 X1-A)

C/1947 X1-A (Southern Comet)
R.A: 21h 49m 58s   Dec: -04° 23’ 56”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Aquarius   current altitude less than 30 degrees above the horizon
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