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A Complete Guide to the Solar System and the Night Sky
FAQ
FAQ
public Location: Greenwich, United Kingdom
Timezone: Europe/London
Sunrise: 5:24 
Transit: 12:55 
Sunset: 20:27
sunny   (Daytime)   What's Visible Now?

Solar System Object Locator

Use this form to visualize the position of Solar System objects at given date and time on an interactive sky map.
Time: : UTC

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

58P/Jackson-Neujmin   radio_button_checked

58P/Jackson-Neujmin

58P/Jackson-Neujmin   radio_button_checked

Magnitude: 34.7 (Predicted - JPL) trending_flat
RA: 11h 29m 40s   Decl: +08° 09’ 02”
in Leo

C/2023 F1 (PANSTARRS)   radio_button_checked

C/2023 F1 (PANSTARRS)

C/2023 F1 (PANSTARRS)   radio_button_checked

Magnitude: 35.1 (Predicted - JPL) trending_down
RA: 03h 55m 48s   Decl: -05° 36’ 36”
in Eridanus

C/2016 U1 (NEOWISE)   radio_button_checked

C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)   radio_button_checked

Magnitude: 36.0 (Predicted - JPL) trending_flat
RA: 02h 52m 48s   Decl: -05° 43’ 02”
in Eridanus

153P/Ikeya-Zhang   radio_button_checked

153P/Ikeya-Zhang

153P/Ikeya-Zhang   radio_button_checked

Magnitude: 36.0 (Predicted - JPL) trending_flat
RA: 20h 05m 30s   Decl: -31° 57’ 18”
in Sagittarius

P/2021 N1 (ZTF)   radio_button_checked

P/2021 N1 (ZTF)

P/2021 N1 (ZTF)   radio_button_checked

Magnitude: 36.3 (Predicted - JPL) trending_down
RA: 09h 08m 55s   Decl: +10° 43’ 07”
in Cancer

C/1969 Y1 (Bennett)   radio_button_checked

C/1969 Y1 (Bennett)

C/1969 Y1 (Bennett)   radio_button_checked

Magnitude: 36.5 (Predicted - JPL) trending_flat
RA: 02h 30m 18s   Decl: +29° 33’ 25”
in Triangulum

109P/Swift-Tuttle   radio_button_checked

109P/Swift-Tuttle

109P/Swift-Tuttle   radio_button_checked

Magnitude: 36.9 (Predicted - JPL) trending_flat
RA: 09h 34m 28s   Decl: -19° 10’ 23”
in Hydra

255P/Levy   radio_button_checked

255P/Levy

255P/Levy   radio_button_checked

Magnitude: 39.7 (Predicted - JPL) trending_flat
RA: 18h 26m 39s   Decl: -25° 55’ 41”
in Sagittarius

72P/Denning-Fujikawa   radio_button_checked

72P/Denning-Fujikawa

72P/Denning-Fujikawa   radio_button_checked

Magnitude: 40.4 (Predicted - JPL) trending_down
RA: 09h 37m 34s   Decl: +23° 53’ 07”
in Leo

55P/Tempel-Tuttle   radio_button_checked

55P/Tempel-Tuttle

55P/Tempel-Tuttle   radio_button_checked

Magnitude: 45.3 (Predicted - JPL) trending_up
RA: 15h 08m 52s   Decl: -15° 20’ 09”
in Libra

C/2006 P1 (McNaught)   radio_button_checked

C/2006 P1 (McNaught)

C/2006 P1 (McNaught)   radio_button_checked

Magnitude: 45.9 (Predicted - JPL) trending_flat
RA: 17h 06m 48s   Decl: -54° 37’ 15”
in Ara

27P/Crommelin   radio_button_checked

27P/Crommelin

27P/Crommelin   radio_button_checked

Magnitude: 53.8 (Predicted - JPL) trending_flat
RA: 17h 40m 37s   Decl: -16° 05’ 19”
in Ophiucus

205P/Giacobini   radio_button_checked

205P/Giacobini

205P/Giacobini   radio_button_checked

Magnitude: N.A.
RA: 08h 15m 43s   Decl: +08° 54’ 00”
in Cancer

5D/Brorsen (Lost)   radio_button_checked

5D/Brorsen (Lost)

5D/Brorsen (Lost)   radio_button_checked

Magnitude: N.A.
RA: 19h 11m 10s   Decl: -22° 33’ 41”
in Sagittarius

C/1910 A1 (Great January Comet)   radio_button_checked

C/1910 A1 (Great January Comet)

C/1910 A1 (Great January Comet)   radio_button_checked

Magnitude: N.A.
RA: 20h 04m 51s   Decl: +06° 45’ 56”
in Aquila

C/1927 X1 (Skjellerup-Maristany)   radio_button_checked

C/1927 X1 (Skjellerup-Maristany)

C/1927 X1 (Skjellerup-Maristany)   radio_button_checked

Magnitude: N.A.
RA: 17h 10m 57s   Decl: -65° 59’ 51”
in Ara

C/1956 R1 (Arend-Roland)   radio_button_checked

C/1956 R1 (Arend-Roland)

C/1956 R1 (Arend-Roland)   radio_button_checked

Magnitude: N.A.
RA: 03h 56m 37s   Decl: +68° 37’ 17”
in Camelopardalis

C/1948 V1 (Eclipse comet)   radio_button_checked

C/1948 V1 (Eclipse comet)

C/1948 V1 (Eclipse comet)   radio_button_checked

Magnitude: N.A.
RA: 08h 42m 47s   Decl: -05° 06’ 37”
in Hydra

C/1965 S1 (Ikeya-Seki)   radio_button_checked

C/1965 S1 (Ikeya-Seki)

C/1965 S1 (Ikeya-Seki)   radio_button_checked

Magnitude: N.A.
RA: 06h 43m 57s   Decl: -11° 43’ 15”
in Canis Majoris

C/2012 S1 (ISON)   radio_button_checked

C/2012 S1 (ISON)

C/2012 S1 (ISON)   radio_button_checked

Magnitude: N.A.
RA: 07h 16m 33s   Decl: +37° 15’ 15”
in Auriga
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