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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
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_down
RA: 15h 26m 54s   Decl: -02° 56’ 16”
in Serpens

157P/Tritton   radio_button_checked

157P/Tritton

157P/Tritton   radio_button_checked

Magnitude: 24.4 (Predicted - JPL) trending_flat
RA: 15h 03m 51s   Decl: -31° 13’ 57”
in Lupus

274P/Tombaugh-Tenagra   radio_button_checked

274P/Tombaugh-Tenagra

274P/Tombaugh-Tenagra   radio_button_checked

Magnitude: 24.5 (Predicted - JPL) trending_flat
RA: 16h 54m 33s   Decl: -18° 45’ 27”
in Ophiucus

123P/West-Hartley   radio_button_checked

123P/West-Hartley

123P/West-Hartley   radio_button_checked

Magnitude: 24.6 (Predicted - JPL) trending_up
RA: 00h 55m 09s   Decl: -04° 09’ 40”
in Cetus

C/2023 X1 (Leonard)   radio_button_checked

C/2023 X1 (Leonard)

C/2023 X1 (Leonard)   radio_button_checked

Magnitude: 24.9 (Predicted - JPL) trending_down
RA: 03h 10m 52s   Decl: +72° 21’ 28”
in Cassiopeia

210P/Christensen   radio_button_checked

210P/Christensen

210P/Christensen   radio_button_checked

Magnitude: 25.0 (Predicted - JPL) trending_up
RA: 18h 59m 18s   Decl: -22° 56’ 11”
in Sagittarius

284P/McNaught   radio_button_checked

284P/McNaught

284P/McNaught   radio_button_checked

Magnitude: 25.0 (Predicted - JPL) trending_down
RA: 09h 01m 32s   Decl: +17° 01’ 35”
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 23m 20s   Decl: -50° 07’ 35”
in Pictor

15P/Finlay   radio_button_checked

15P/Finlay

15P/Finlay   radio_button_checked

Magnitude: 25.1 (Predicted - JPL) trending_flat
RA: 11h 15m 00s   Decl: +07° 17’ 54”
in Leo

260P/McNaught   radio_button_checked

260P/McNaught

260P/McNaught   radio_button_checked

Magnitude: 25.3 (Predicted - JPL) trending_flat
RA: 13h 02m 38s   Decl: -18° 59’ 51”
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 31m 00s   Decl: -28° 21’ 26”
in Libra

16P/Brooks   radio_button_checked

16P/Brooks

16P/Brooks   radio_button_checked

Magnitude: 25.4 (Predicted - JPL) trending_down
RA: 12h 32m 03s   Decl: -00° 17’ 26”
in Virgo

80P/Peters-Hartley   radio_button_checked

80P/Peters-Hartley

80P/Peters-Hartley   radio_button_checked

Magnitude: 25.4 (Predicted - JPL) trending_down
RA: 00h 45m 01s   Decl: +30° 12’ 54”
in Andromeda

398P/Boattini   radio_button_checked

398P/Boattini

398P/Boattini   radio_button_checked

Magnitude: 25.5 (Predicted - JPL) trending_up
RA: 19h 30m 19s   Decl: -16° 08’ 34”
in Sagittarius

51P/Harrington   radio_button_checked

51P/Harrington

51P/Harrington   radio_button_checked

Magnitude: 25.6 (Predicted - JPL) trending_down
RA: 08h 10m 30s   Decl: +23° 54’ 29”
in Cancer

1P/Halley   radio_button_checked

1P/Halley

1P/Halley   radio_button_checked

Magnitude: 25.6 (Predicted - JPL) trending_down
RA: 08h 11m 17s   Decl: +03° 19’ 45”
in Canis Minoris

114P/Wiseman-Skiff   radio_button_checked

114P/Wiseman-Skiff

114P/Wiseman-Skiff   radio_button_checked

Magnitude: 25.9 (Predicted - JPL) trending_up
RA: 19h 32m 47s   Decl: -17° 23’ 17”
in Sagittarius

6P/d'Arrest   radio_button_checked

6P/d'Arrest

6P/d'Arrest   radio_button_checked

Magnitude: 26.0 (Predicted - JPL) trending_flat
RA: 07h 56m 17s   Decl: +16° 50’ 40”
in Cancer

364P/PANSTARRS   radio_button_checked

364P/PANSTARRS

364P/PANSTARRS   radio_button_checked

Magnitude: 26.2 (Predicted - JPL) trending_down
RA: 03h 07m 02s   Decl: +17° 50’ 26”
in Aries

161P/Hartley-IRAS   radio_button_checked

161P/Hartley-IRAS

161P/Hartley-IRAS   radio_button_checked

Magnitude: 26.2 (Predicted - JPL) trending_flat
RA: 06h 39m 06s   Decl: -54° 37’ 01”
in Carina
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