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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: 5:03 
Transit: 12:55 
Sunset: 20:47
wb_twilight   (Astronomical Twilight)   What's Visible Now?

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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

19P/Borrelly   radio_button_checked

19P/Borrelly

19P/Borrelly   radio_button_checked

Magnitude: 24.3 (Predicted - JPL) trending_flat
RA: 15h 24m 12s   Decl: -02° 53’ 58”
in Serpens

157P/Tritton   radio_button_checked

157P/Tritton

157P/Tritton   radio_button_checked

Magnitude: 24.4 (Predicted - JPL) trending_flat
RA: 15h 00m 30s   Decl: -30° 55’ 49”
in Centaurus

274P/Tombaugh-Tenagra   radio_button_checked

274P/Tombaugh-Tenagra

274P/Tombaugh-Tenagra   radio_button_checked

Magnitude: 24.5 (Predicted - JPL) trending_down
RA: 16h 52m 04s   Decl: -18° 46’ 31”
in Ophiucus

123P/West-Hartley   radio_button_checked

123P/West-Hartley

123P/West-Hartley   radio_button_checked

Magnitude: 24.5 (Predicted - JPL) trending_flat
RA: 00h 57m 58s   Decl: -03° 53’ 18”
in Cetus

210P/Christensen   radio_button_checked

210P/Christensen

210P/Christensen   radio_button_checked

Magnitude: 24.9 (Predicted - JPL) trending_up
RA: 18h 57m 31s   Decl: -23° 00’ 47”
in Sagittarius

C/2023 X1 (Leonard)   radio_button_checked

C/2023 X1 (Leonard)

C/2023 X1 (Leonard)   radio_button_checked

Magnitude: 25.0 (Predicted - JPL) trending_down
RA: 03h 18m 02s   Decl: +72° 44’ 37”
in Cassiopeia

284P/McNaught   radio_button_checked

284P/McNaught

284P/McNaught   radio_button_checked

Magnitude: 25.0 (Predicted - JPL) trending_down
RA: 09h 03m 27s   Decl: +16° 57’ 05”
in Cancer

C/2023 A1 (Leonard)   radio_button_checked

C/2023 A1 (Leonard)

C/2023 A1 (Leonard)   radio_button_checked

Magnitude: 25.1 (Predicted - JPL) trending_down
RA: 05h 26m 14s   Decl: -50° 01’ 24”
in Pictor

15P/Finlay   radio_button_checked

15P/Finlay

15P/Finlay   radio_button_checked

Magnitude: 25.1 (Predicted - JPL) trending_down
RA: 11h 14m 35s   Decl: +07° 17’ 47”
in Leo

260P/McNaught   radio_button_checked

260P/McNaught

260P/McNaught   radio_button_checked

Magnitude: 25.3 (Predicted - JPL) trending_flat
RA: 13h 00m 45s   Decl: -18° 46’ 10”
in Virgo

56P/Slaughter-Burnham   radio_button_checked

56P/Slaughter-Burnham

56P/Slaughter-Burnham   radio_button_checked

Magnitude: 25.4 (Predicted - JPL) trending_up
RA: 15h 28m 53s   Decl: -28° 15’ 13”
in Libra

16P/Brooks   radio_button_checked

16P/Brooks

16P/Brooks   radio_button_checked

Magnitude: 25.4 (Predicted - JPL) trending_down
RA: 12h 30m 56s   Decl: -00° 11’ 43”
in Virgo

80P/Peters-Hartley   radio_button_checked

80P/Peters-Hartley

80P/Peters-Hartley   radio_button_checked

Magnitude: 25.5 (Predicted - JPL) trending_flat
RA: 00h 48m 35s   Decl: +30° 41’ 16”
in Andromeda

398P/Boattini   radio_button_checked

398P/Boattini

398P/Boattini   radio_button_checked

Magnitude: 25.5 (Predicted - JPL) trending_up
RA: 19h 29m 20s   Decl: -16° 09’ 18”
in Sagittarius

1P/Halley   radio_button_checked

1P/Halley

1P/Halley   radio_button_checked

Magnitude: 25.6 (Predicted - JPL) trending_flat
RA: 08h 11m 27s   Decl: +03° 20’ 57”
in Canis Minoris

51P/Harrington   radio_button_checked

51P/Harrington

51P/Harrington   radio_button_checked

Magnitude: 25.6 (Predicted - JPL) trending_down
RA: 08h 13m 24s   Decl: +23° 44’ 09”
in Cancer

114P/Wiseman-Skiff   radio_button_checked

114P/Wiseman-Skiff

114P/Wiseman-Skiff   radio_button_checked

Magnitude: 25.9 (Predicted - JPL) trending_up
RA: 19h 31m 49s   Decl: -17° 17’ 16”
in Sagittarius

6P/d'Arrest   radio_button_checked

6P/d'Arrest

6P/d'Arrest   radio_button_checked

Magnitude: 26.1 (Predicted - JPL) trending_down
RA: 07h 58m 20s   Decl: +16° 50’ 39”
in Cancer

161P/Hartley-IRAS   radio_button_checked

161P/Hartley-IRAS

161P/Hartley-IRAS   radio_button_checked

Magnitude: 26.2 (Predicted - JPL) trending_up
RA: 06h 40m 50s   Decl: -54° 17’ 00”
in Carina

364P/PANSTARRS   radio_button_checked

364P/PANSTARRS

364P/PANSTARRS   radio_button_checked

Magnitude: 26.2 (Predicted - JPL) trending_down
RA: 03h 11m 22s   Decl: +18° 11’ 22”
in Aries
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