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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: 5:19 
Transit: 12:55 
Sunset: 20:32
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

150P/LONEOS   radio_button_checked

150P/LONEOS

150P/LONEOS   radio_button_checked

Magnitude: 18.4 (Observed - COBS) trending_down
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-04-28
RA: 09h 44m 22s   Decl: -14° 35’ 02”
in Hydra

207P/NEAT   radio_button_checked

207P/NEAT

207P/NEAT   radio_button_checked

Magnitude: 18.8 (Observed - COBS) trending_down
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-05-02
RA: 11h 31m 05s   Decl: +04° 29’ 47”
in Leo

C/2020 F2 (ATLAS)   radio_button_checked

C/2020 F2 (ATLAS)

C/2020 F2 (ATLAS)   radio_button_checked

Magnitude: 18.9 (Observed - COBS) trending_down
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-04-28
RA: 11h 26m 14s   Decl: +22° 15’ 18”
in Leo

103P/Hartley   radio_button_checked

103P/Hartley

103P/Hartley   radio_button_checked

Magnitude: 19.2 (Observed - COBS) trending_down
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-05-02
RA: 08h 54m 18s   Decl: +04° 09’ 19”
in Hydra

C/2020 S4 (PANSTARRS)   radio_button_checked

C/2020 S4 (PANSTARRS)

C/2020 S4 (PANSTARRS)   radio_button_checked

Magnitude: 19.8 (Observed - COBS) trending_down
Coma Diameter: 0.2'
Tail Length: n/a
Observation Date: 2024-05-04
RA: 14h 23m 19s   Decl: +12° 10’ 44”
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 51m 38s   Decl: +34° 06’ 36”
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 28m 51s   Decl: -44° 30’ 31”
in Phoenix

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 09m 41s   Decl: -35° 34’ 38”
in Fornax

P/2010 H2 (Vales)   radio_button_checked

P/2010 H2 (Vales)

P/2010 H2 (Vales)   radio_button_checked

Magnitude: 15.0 (Predicted - JPL) trending_flat
RA: 08h 07m 43s   Decl: +33° 05’ 16”
in Gemini

154P/Brewington   radio_button_checked

154P/Brewington

154P/Brewington   radio_button_checked

Magnitude: 16.2 (Predicted - JPL) trending_up
RA: 01h 16m 46s   Decl: +13° 17’ 59”
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_flat
RA: 05h 27m 30s   Decl: +12° 43’ 33”
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_flat
RA: 12h 21m 41s   Decl: +14° 47’ 03”
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 47s   Decl: -50° 34’ 49”
in Vela

130P/McNaught-Hughes   radio_button_checked

130P/McNaught-Hughes

130P/McNaught-Hughes   radio_button_checked

Magnitude: 17.3 (Predicted - JPL) trending_up
RA: 23h 46m 15s   Decl: -06° 46’ 48”
in Aquarius

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 26m 35s   Decl: -58° 14’ 17”
in Dorado

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 47m 35s   Decl: +16° 19’ 29”
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 43m 25s   Decl: -07° 07’ 02”
in Aquarius

C/2021 Y1 (ATLAS)   radio_button_checked

C/2021 Y1 (ATLAS)

C/2021 Y1 (ATLAS)   radio_button_checked

Magnitude: 17.8 (Predicted - JPL) trending_down
RA: 15h 47m 35s   Decl: -42° 54’ 57”
in Lupus

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 41m 50s   Decl: -63° 14’ 29”
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_down
RA: 03h 37m 16s   Decl: -46° 08’ 56”
in Horologium
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