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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

C/2020 S4 (PANSTARRS)   radio_button_checked

C/2020 S4 (PANSTARRS)

C/2020 S4 (PANSTARRS)   radio_button_checked

Magnitude: 19.8 (Observed - COBS) trending_flat
Coma Diameter: 0.2'
Tail Length: n/a
Observation Date: 2024-05-04
RA: 14h 24m 28s   Decl: +12° 10’ 14”
in Bootes

C/2023 V4 (Camarasa-Duszanowicz)   radio_button_checked

C/2023 V4 (Camarasa-Duszanowicz)

C/2023 V4 (Camarasa-Duszanowicz)   radio_button_checked

Magnitude: 14.2 (Predicted - JPL) trending_up
RA: 03h 45m 21s   Decl: +32° 26’ 35”
in Perseus

C/2020 V2 (ZTF)   radio_button_checked

C/2020 V2 (ZTF)

C/2020 V2 (ZTF)   radio_button_checked

Magnitude: 14.8 (Predicted - JPL) trending_flat
RA: 00h 27m 27s   Decl: -44° 05’ 41”
in Phoenix

P/2010 H2 (Vales)   radio_button_checked

P/2010 H2 (Vales)

P/2010 H2 (Vales)   radio_button_checked

Magnitude: 15.0 (Predicted - JPL) trending_down
RA: 08h 04m 50s   Decl: +33° 18’ 40”
in Lynx

C/2022 S4 (Lemmon)   radio_button_checked

C/2022 S4 (Lemmon)

C/2022 S4 (Lemmon)   radio_button_checked

Magnitude: 15.0 (Predicted - JPL) trending_up
RA: 03h 05m 29s   Decl: -35° 09’ 57”
in Fornax

154P/Brewington   radio_button_checked

154P/Brewington

154P/Brewington   radio_button_checked

Magnitude: 16.2 (Predicted - JPL) trending_up
RA: 01h 09m 32s   Decl: +12° 14’ 57”
in Pisces

C/2017 K2 (PANSTARRS)   radio_button_checked

C/2017 K2 (PANSTARRS)

C/2017 K2 (PANSTARRS)   radio_button_checked

Magnitude: 16.6 (Predicted - JPL) trending_down
RA: 05h 26m 04s   Decl: +12° 31’ 56”
in Orion

P/2023 B1 (PANSTARRS)   radio_button_checked

P/2023 B1 (PANSTARRS)

P/2023 B1 (PANSTARRS)   radio_button_checked

Magnitude: 17.0 (Predicted - JPL) trending_down
RA: 12h 22m 20s   Decl: +14° 49’ 43”
in Coma

C/2019 L3 (ATLAS)   radio_button_checked

C/2019 L3 (ATLAS)

C/2019 L3 (ATLAS)   radio_button_checked

Magnitude: 17.1 (Predicted - JPL) trending_flat
RA: 10h 35m 55s   Decl: -50° 48’ 19”
in Vela

150P/LONEOS   radio_button_checked

150P/LONEOS

150P/LONEOS   radio_button_checked

Magnitude: 17.3 (Predicted - JPL) trending_down
RA: 09h 39m 21s   Decl: -14° 37’ 30”
in Hydra

C/2022 A3 (Lemmon-ATLAS)   radio_button_checked

C/2022 A3 (Lemmon-ATLAS)

C/2022 A3 (Lemmon-ATLAS)   radio_button_checked

Magnitude: 17.3 (Predicted - JPL) trending_down
RA: 04h 25m 12s   Decl: -58° 21’ 33”
in Dorado

130P/McNaught-Hughes   radio_button_checked

130P/McNaught-Hughes

130P/McNaught-Hughes   radio_button_checked

Magnitude: 17.3 (Predicted - JPL) trending_flat
RA: 23h 40m 08s   Decl: -07° 21’ 56”
in Aquarius

C/2021 X1 (Maury-Attard)   radio_button_checked

C/2021 X1 (Maury-Attard)

C/2021 X1 (Maury-Attard)   radio_button_checked

Magnitude: 17.4 (Predicted - JPL) trending_flat
RA: 22h 48m 04s   Decl: +15° 59’ 34”
in Pegasus

C/2022 N2 (PANSTARRS)   radio_button_checked

C/2022 N2 (PANSTARRS)

C/2022 N2 (PANSTARRS)   radio_button_checked

Magnitude: 17.4 (Predicted - JPL) trending_up
RA: 22h 41m 49s   Decl: -07° 18’ 30”
in Aquarius

37P/Forbes   radio_button_checked

37P/Forbes

37P/Forbes   radio_button_checked

Magnitude: 17.6 (Predicted - JPL) trending_up
RA: 12h 32m 28s   Decl: -19° 46’ 36”
in Corvus

C/2021 Y1 (ATLAS)   radio_button_checked

C/2021 Y1 (ATLAS)

C/2021 Y1 (ATLAS)   radio_button_checked

Magnitude: 17.7 (Predicted - JPL) trending_flat
RA: 15h 50m 40s   Decl: -43° 18’ 55”
in Norma

C/2019 E3 (ATLAS)   radio_button_checked

C/2019 E3 (ATLAS)

C/2019 E3 (ATLAS)   radio_button_checked

Magnitude: 17.8 (Predicted - JPL) trending_flat
RA: 02h 40m 31s   Decl: -63° 18’ 14”
in Horologium

C/2022 E3 (ZTF)   radio_button_checked

C/2022 E3 (ZTF)

C/2022 E3 (ZTF)   radio_button_checked

Magnitude: 17.8 (Predicted - JPL) trending_flat
RA: 03h 35m 27s   Decl: -46° 10’ 33”
in Horologium

C/2023 T3 (Fuls)   radio_button_checked

C/2023 T3 (Fuls)

C/2023 T3 (Fuls)   radio_button_checked

Magnitude: 17.8 (Predicted - JPL) trending_flat
RA: 07h 59m 37s   Decl: -05° 35’ 03”
in Monoceros

P/2023 M4 (ATLAS)   radio_button_checked

P/2023 M4 (ATLAS)

P/2023 M4 (ATLAS)   radio_button_checked

Magnitude: 17.9 (Predicted - JPL) trending_flat
RA: 23h 34m 45s   Decl: +02° 58’ 16”
in Pisces
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