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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: 5:09 
Transit: 12:54 
Sunset: 20:41
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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_down
RA: 11h 28m 07s   Decl: +08° 17’ 21”
in Leo

C/2023 F1 (PANSTARRS)   radio_button_checked

C/2023 F1 (PANSTARRS)

C/2023 F1 (PANSTARRS)   radio_button_checked

Magnitude: 35.5 (Predicted - JPL) trending_down
RA: 03h 59m 49s   Decl: -04° 51’ 58”
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 11s   Decl: -32° 00’ 47”
in Sagittarius

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 54m 21s   Decl: -05° 36’ 31”
in Eridanus

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 10m 54s   Decl: +10° 38’ 52”
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 47s   Decl: +29° 35’ 39”
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 26s   Decl: -19° 02’ 58”
in Hydra

255P/Levy   radio_button_checked

255P/Levy

255P/Levy   radio_button_checked

Magnitude: 39.7 (Predicted - JPL) trending_down
RA: 18h 22m 06s   Decl: -25° 54’ 14”
in Sagittarius

72P/Denning-Fujikawa   radio_button_checked

72P/Denning-Fujikawa

72P/Denning-Fujikawa   radio_button_checked

Magnitude: 40.7 (Predicted - JPL) trending_down
RA: 09h 40m 49s   Decl: +23° 11’ 14”
in Leo

55P/Tempel-Tuttle   radio_button_checked

55P/Tempel-Tuttle

55P/Tempel-Tuttle   radio_button_checked

Magnitude: 45.2 (Predicted - JPL) trending_flat
RA: 15h 06m 14s   Decl: -15° 08’ 20”
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 05m 23s   Decl: -54° 39’ 37”
in Ara

27P/Crommelin   radio_button_checked

27P/Crommelin

27P/Crommelin   radio_button_checked

Magnitude: 53.8 (Predicted - JPL) trending_flat
RA: 17h 39m 01s   Decl: -16° 01’ 11”
in Serpens

205P/Giacobini   radio_button_checked

205P/Giacobini

205P/Giacobini   radio_button_checked

Magnitude: N.A.
RA: 08h 19m 38s   Decl: +09° 02’ 26”
in Cancer

5D/Brorsen (Lost)   radio_button_checked

5D/Brorsen (Lost)

5D/Brorsen (Lost)   radio_button_checked

Magnitude: N.A.
RA: 19h 07m 22s   Decl: -22° 50’ 35”
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 46s   Decl: +06° 47’ 24”
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 19s   Decl: -66° 01’ 09”
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 57m 35s   Decl: +68° 37’ 05”
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 52s   Decl: -05° 04’ 50”
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 44m 14s   Decl: -11° 40’ 30”
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 17m 21s   Decl: +37° 09’ 59”
in Auriga
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