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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?

Bright Comets

This page provides a comprehensive list of the bright comets currently visible in the sky. This list is updated with new information several times per day. Comets for which there is data from recent observations reported in the Comet Observation database (COBS) are listed first, in order of decreasing brightness. When data from recent observations is not available, the magnitude provided by the JPL Horizons datasets is used as an estimation of the brightness.

Credits for comet observation data: COBS Comet Observation Database – CC BY-NA-SA 4.0

Visibility from selected location
visibility = visible to the naked eye
stars = binocular, brighter than 10th magnitude
radio_button_checked Current altitude ≥ 30°   radio_button_checked Current altitude < 30°   radio_button_checked Below the horizon
 From: Greenwich, United Kingdom edit_location_alt
49P/Arend-Rigaux

49P/Arend-Rigaux   radio_button_checked

Magnitude: 20.8 (Predicted - JPL) trending_up
RA: 22h 03m 22s   Decl: -18° 23’ 28”
in Aquarius
21P/Giacobini-Zinner

21P/Giacobini-Zinner   radio_button_checked

Magnitude: 20.8 (Predicted - JPL) trending_up
RA: 15h 59m 18s   Decl: -01° 54’ 55”
in Serpens
237P/LINEAR

237P/LINEAR   radio_button_checked

Magnitude: 20.9 (Predicted - JPL) trending_down
RA: 23h 43m 40s   Decl: +08° 21’ 14”
in Pegasus
152P/Helin-Lawrence

152P/Helin-Lawrence   radio_button_checked

Magnitude: 20.9 (Predicted - JPL) trending_flat
RA: 00h 40m 20s   Decl: -04° 31’ 38”
in Cetus
118P/Shoemaker-Levy

118P/Shoemaker-Levy   radio_button_checked

Magnitude: 20.9 (Predicted - JPL) trending_flat
RA: 15h 54m 27s   Decl: -08° 49’ 20”
in Libra
326P/Hill

326P/Hill   radio_button_checked

Magnitude: 21.0 (Predicted - JPL) trending_down
RA: 01h 24m 47s   Decl: +06° 59’ 30”
in Pisces
88P/Howell

88P/Howell   radio_button_checked

Magnitude: 21.0 (Predicted - JPL) trending_flat
RA: 08h 13m 00s   Decl: +25° 01’ 50”
in Cancer
C/2020 U4 (PANSTARRS)

C/2020 U4 (PANSTARRS)   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_down
RA: 22h 58m 12s   Decl: +02° 29’ 47”
in Pisces
217P/LINEAR

217P/LINEAR   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_up
RA: 16h 38m 53s   Decl: -09° 15’ 14”
in Ophiucus
333P/LINEAR

333P/LINEAR   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_up
RA: 13h 50m 26s   Decl: -71° 44’ 36”
in Apus
135P/Shoemaker-Levy

135P/Shoemaker-Levy   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_down
RA: 23h 44m 46s   Decl: +01° 17’ 34”
in Pisces
146P/Shoemaker-LINEAR

146P/Shoemaker-LINEAR   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_up
RA: 20h 38m 24s   Decl: -33° 17’ 19”
in Microscopium
C/2022 JK5 (PANSTARRS)

C/2022 JK5 (PANSTARRS)   radio_button_checked

Magnitude: 21.1 (Predicted - JPL) trending_down
RA: 01h 03m 19s   Decl: -03° 00’ 11”
in Cetus
133P/Elst-Pizarro

133P/Elst-Pizarro   radio_button_checked

Magnitude: 21.2 (Predicted - JPL) trending_up
RA: 19h 38m 40s   Decl: -20° 26’ 02”
in Sagittarius
116P/Wild

116P/Wild   radio_button_checked

Magnitude: 21.2 (Predicted - JPL) trending_flat
RA: 22h 04m 07s   Decl: -14° 28’ 12”
in Aquarius
C/2023 S2 (ATLAS)

C/2023 S2 (ATLAS)   radio_button_checked

Magnitude: 21.3 (Predicted - JPL) trending_down
RA: 01h 46m 00s   Decl: +12° 25’ 45”
in Pisces
4P/Faye

4P/Faye   radio_button_checked

Magnitude: 21.4 (Predicted - JPL) trending_flat
RA: 13h 36m 19s   Decl: -08° 58’ 52”
in Virgo
C/2021 D2 (ZTF)

C/2021 D2 (ZTF)   radio_button_checked

Magnitude: 21.4 (Predicted - JPL) trending_down
RA: 07h 39m 03s   Decl: -30° 24’ 15”
in Puppis
75D/Kohoutek (Lost)

75D/Kohoutek (Lost)   radio_button_checked

Magnitude: 21.4 (Predicted - JPL) trending_flat
RA: 17h 54m 30s   Decl: -24° 34’ 19”
in Sagittarius
C/2021 A1 (Leonard)

C/2021 A1 (Leonard)   radio_button_checked

Magnitude: 21.5 (Predicted - JPL) trending_flat
RA: 16h 49m 40s   Decl: -11° 38’ 08”
in Ophiucus
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