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A Complete Guide to the Solar System and the Night Sky
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public Location: Greenwich, United Kingdom
Timezone: Europe/London
Sunrise: 5:06 
Transit: 12:55 
Sunset: 20:44
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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

12P/Pons-Brooks   radio_button_checked

12P/Pons-Brooks
visibility

12P/Pons-Brooks   radio_button_checked

Magnitude: 5.8 (Observed - COBS) trending_down
Coma Diameter: 4.5'
Tail Length: 1.0°
Observation Date: 2024-05-15
RA: 04h 53m 30s   Decl: -08° 15’ 37”
in Eridanus

13P/Olbers   radio_button_checked

13P/Olbers
stars

13P/Olbers   radio_button_checked

Magnitude: 8.5 (Observed - COBS) trending_up
Coma Diameter: 2.5'
Tail Length: n/a
Observation Date: 2024-05-15
RA: 05h 20m 25s   Decl: +32° 04’ 57”
in Auriga

C/2021 S3 (PANSTARRS)   radio_button_checked

C/2021 S3 (PANSTARRS)
stars

C/2021 S3 (PANSTARRS)   radio_button_checked

Magnitude: 11.6 (Observed - COBS) trending_down
Coma Diameter: 1.7'
Tail Length: n/a
Observation Date: 2024-05-14
RA: 20h 33m 01s   Decl: +50° 50’ 16”
in Cygnus

C/2023 A3 (Tsuchinshan-ATLAS)   radio_button_checked

C/2023 A3 (Tsuchinshan-ATLAS)

C/2023 A3 (Tsuchinshan-ATLAS)   radio_button_checked

Magnitude: 11.9 (Observed - COBS) trending_up
Coma Diameter: n/a
Tail Length: n/a
Observation Date: 2024-05-16
RA: 12h 40m 39s   Decl: +01° 14’ 42”
in Virgo

C/2020 V2 (ZTF)   radio_button_checked

C/2020 V2 (ZTF)

C/2020 V2 (ZTF)   radio_button_checked

Magnitude: 13.7 (Observed - COBS) trending_flat
Coma Diameter: 1.6'
Tail Length: 6.3'
Observation Date: 2024-05-15
RA: 00h 32m 44s   Decl: -45° 53’ 40”
in Phoenix

C/2021 G2 (Atlas)   radio_button_checked

C/2021 G2 (Atlas)

C/2021 G2 (Atlas)   radio_button_checked

Magnitude: 13.9 (Observed - COBS) trending_flat
Coma Diameter: 1.6'
Tail Length: 2.9'
Observation Date: 2024-05-15
RA: 11h 52m 21s   Decl: -28° 22’ 33”
in Hydra

29P/Schwassmann-Wachmann   radio_button_checked

29P/Schwassmann-Wachmann

29P/Schwassmann-Wachmann   radio_button_checked

Magnitude: 14.0 (Observed - COBS) trending_down
Coma Diameter: 1.1'
Tail Length: n/a
Observation Date: 2024-05-11
RA: 08h 16m 37s   Decl: +20° 03’ 24”
in Cancer

C/2022 E2 (ATLAS)   radio_button_checked

C/2022 E2 (ATLAS)

C/2022 E2 (ATLAS)   radio_button_checked

Magnitude: 14.0 (Observed - COBS) trending_flat
Coma Diameter: 0.7'
Tail Length: 3.4'
Observation Date: 2024-05-10
RA: 06h 50m 20s   Decl: +33° 36’ 41”
in Gemini

144P/Kushida   radio_button_checked

144P/Kushida

144P/Kushida   radio_button_checked

Magnitude: 14.1 (Observed - COBS) trending_down
Coma Diameter: 1.5'
Tail Length: n/a
Observation Date: 2024-05-13
RA: 09h 10m 13s   Decl: +12° 04’ 27”
in Cancer

32P/Comas Sola   radio_button_checked

32P/Comas Sola

32P/Comas Sola   radio_button_checked

Magnitude: 14.4 (Observed - COBS) trending_down
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2024-05-13
RA: 06h 43m 53s   Decl: +30° 02’ 00”
in Gemini

C/2019 T4 (ATLAS)   radio_button_checked

C/2019 T4 (ATLAS)

C/2019 T4 (ATLAS)   radio_button_checked

Magnitude: 14.5 (Observed - COBS) trending_flat
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-05-12
RA: 17h 40m 44s   Decl: +31° 40’ 06”
in Hercules

C/2022 L2 (ATLAS)   radio_button_checked

C/2022 L2 (ATLAS)

C/2022 L2 (ATLAS)   radio_button_checked

Magnitude: 14.9 (Observed - COBS) trending_down
Coma Diameter: 1.1'
Tail Length: n/a
Observation Date: 2024-05-15
RA: 10h 14m 14s   Decl: -29° 14’ 04”
in Antlia

C/2019 U5 (PANSTARRS)   radio_button_checked

C/2019 U5 (PANSTARRS)

C/2019 U5 (PANSTARRS)   radio_button_checked

Magnitude: 15.1 (Observed - COBS) trending_down
Coma Diameter: 0.5'
Tail Length: n/a
Observation Date: 2024-05-15
RA: 07h 21m 25s   Decl: -33° 33’ 45”
in Puppis

62P/Tsuchinshan   radio_button_checked

62P/Tsuchinshan

62P/Tsuchinshan   radio_button_checked

Magnitude: 15.2 (Observed - COBS) trending_down
Coma Diameter: 2.4'
Tail Length: n/a
Observation Date: 2024-05-13
RA: 12h 11m 06s   Decl: +04° 28’ 43”
in Virgo

C/2020 K1 (PANSTARRS)   radio_button_checked

C/2020 K1 (PANSTARRS)

C/2020 K1 (PANSTARRS)   radio_button_checked

Magnitude: 15.2 (Observed - COBS) trending_down
Coma Diameter: 1.0'
Tail Length: n/a
Observation Date: 2024-05-15
RA: 05h 29m 19s   Decl: -41° 29’ 44”
in Columba

C/2022 U1 (Leonard)   radio_button_checked

C/2022 U1 (Leonard)

C/2022 U1 (Leonard)   radio_button_checked

Magnitude: 16.2 (Observed - COBS) trending_flat
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-05-14
RA: 22h 44m 10s   Decl: +43° 41’ 39”
in Lacerta

65P/Gunn   radio_button_checked

65P/Gunn

65P/Gunn   radio_button_checked

Magnitude: 16.3 (Observed - COBS) trending_down
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2024-05-15
RA: 12h 34m 03s   Decl: +05° 01’ 48”
in Virgo

C/2024 C4 (ATLAS)   radio_button_checked

C/2024 C4 (ATLAS)

C/2024 C4 (ATLAS)   radio_button_checked

Magnitude: 16.6 (Observed - COBS) trending_down
Coma Diameter: 0.7'
Tail Length: n/a
Observation Date: 2024-05-14
RA: 15h 15m 09s   Decl: +30° 45’ 15”
in Corona Borealis

125P/Spacewatch   radio_button_checked

125P/Spacewatch

125P/Spacewatch   radio_button_checked

Magnitude: 17.0 (Observed - COBS) trending_down
Coma Diameter: 0.5'
Tail Length: 1.5'
Observation Date: 2024-05-15
RA: 21h 18m 21s   Decl: -04° 49’ 02”
in Aquarius

37P/Forbes   radio_button_checked

37P/Forbes

37P/Forbes   radio_button_checked

Magnitude: 17.5 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-05-10
RA: 12h 26m 38s   Decl: -18° 49’ 41”
in Corvus
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