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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
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat'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

255P/Levy   radio_button_checked

Magnitude: 38.2 (Predicted - JPL) trending_down
RA: 16h 57m 44s   Decl: -26° 12’ 29”
in Ophiucus
C/2006 P1 (McNaught)

C/2006 P1 (McNaught)   radio_button_checked

Magnitude: 45.8 (Predicted - JPL) trending_down
RA: 17h 00m 21s   Decl: -53° 08’ 13”
in Ara

55P/Tempel-Tuttle   radio_button_checked

Magnitude: 45.9 (Predicted - JPL) trending_up
RA: 15h 15m 58s   Decl: -16° 20’ 03”
in Libra

27P/Crommelin   radio_button_checked

Magnitude: 53.9 (Predicted - JPL) trending_flat
RA: 17h 27m 12s   Decl: -16° 53’ 51”
in Ophiucus

205P/Giacobini   radio_button_checked

Magnitude: N.A.
RA: 09h 00m 50s   Decl: +02° 28’ 25”
in Hydra
5D/Brorsen (Lost)

5D/Brorsen (Lost)   radio_button_checked

Magnitude: N.A. trending_down
RA: 17h 27m 08s   Decl: -20° 50’ 24”
in Ophiucus
C/1910 A1 (Great January Comet)

C/1910 A1 (Great January Comet)   radio_button_checked

Magnitude: N.A.
RA: 20h 01m 55s   Decl: +06° 26’ 09”
in Aquila
C/1927 X1 (Skjellerup-Maristany)

C/1927 X1 (Skjellerup-Maristany)   radio_button_checked

Magnitude: N.A.
RA: 17h 07m 51s   Decl: -65° 21’ 42”
in Ara
C/1956 R1 (Arend-Roland)

C/1956 R1 (Arend-Roland)   radio_button_checked

Magnitude: N.A.
RA: 03h 57m 18s   Decl: +69° 32’ 17”
in Camelopardalis
C/1948 V1 (Eclipse comet)

C/1948 V1 (Eclipse comet)   radio_button_checked

Magnitude: N.A.
RA: 08h 46m 50s   Decl: -05° 30’ 48”
in Hydra
C/1965 S1 (Ikeya-Seki)

C/1965 S1 (Ikeya-Seki)   radio_button_checked

Magnitude: N.A.
RA: 06h 47m 57s   Decl: -12° 24’ 44”
in Canis Majoris
C/2012 S1 (ISON)

C/2012 S1 (ISON)   radio_button_checked

Magnitude: N.A.
RA: 07h 32m 01s   Decl: +37° 32’ 02”
in Lynx
C/1947 X1-A (Southern Comet)

C/1947 X1-A (Southern Comet)   radio_button_checked

Magnitude: N.A.
RA: 21h 46m 23s   Decl: -04° 39’ 54”
in Aquarius
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