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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:43 
Transit: 13:01 
Sunset: 21:18
wb_twilight   (Nautical Twilight)   What's Visible Now?

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
13P/Olbers
stars

13P/Olbers   radio_button_checked

Magnitude: 6.8 (Observed - COBS) trending_up
Coma Diameter: 2.0'
Tail Length: n/a
Observation Date: 2024-06-22
RA: 08h 01m 16s   Decl: +42° 05’ 54”
in Lynx
12P/Pons-Brooks
stars

12P/Pons-Brooks   radio_button_checked

Magnitude: 7.9 (Observed - COBS) trending_down
Coma Diameter: 10.1'
Tail Length: 10.9'
Observation Date: 2024-06-24
RA: 07h 27m 27s   Decl: -33° 09’ 02”
in Puppis
C/2023 V4 (Camarasa-Duszanowicz)

C/2023 V4 (Camarasa-Duszanowicz)   radio_button_checked

Magnitude: 10.7 (Observed - COBS) trending_down
Coma Diameter: 1.0'
Tail Length: n/a
Observation Date: 2024-06-19
RA: 07h 44m 26s   Decl: +59° 11’ 44”
in Lynx
C/2023 A3 (Tsuchinshan-ATLAS)

C/2023 A3 (Tsuchinshan-ATLAS)   radio_button_checked

Magnitude: 10.9 (Observed - COBS) trending_up
Coma Diameter: 2.1'
Tail Length: 11.4'
Observation Date: 2024-06-24
RA: 11h 24m 06s   Decl: +02° 55’ 11”
in Leo
C/2021 S3 (PANSTARRS)

C/2021 S3 (PANSTARRS)   radio_button_checked

Magnitude: 11.8 (Observed - COBS) trending_down
Coma Diameter: 3.1'
Tail Length: n/a
Observation Date: 2024-06-19
RA: 20h 20m 23s   Decl: +61° 52’ 44”
in Cepheus
154P/Brewington

154P/Brewington   radio_button_checked

Magnitude: 13.5 (Observed - COBS) trending_flat
Coma Diameter: 1.3'
Tail Length: n/a
Observation Date: 2024-06-18
RA: 03h 40m 30s   Decl: +29° 44’ 48”
in Taurus
C/2021 G2 (Atlas)

C/2021 G2 (Atlas)   radio_button_checked

Magnitude: 14.2 (Observed - COBS) trending_flat
Coma Diameter: 1.1'
Tail Length: n/a
Observation Date: 2024-06-20
RA: 12h 05m 33s   Decl: -22° 44’ 48”
in Corvus
C/2020 V2 (ZTF)

C/2020 V2 (ZTF)   radio_button_checked

Magnitude: 14.2 (Observed - COBS) trending_down
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2024-06-18
RA: 00h 38m 54s   Decl: -55° 00’ 41”
in Phoenix
130P/McNaught-Hughes

130P/McNaught-Hughes   radio_button_checked

Magnitude: 15.0 (Observed - COBS) trending_flat
Coma Diameter: 0.8'
Tail Length: n/a
Observation Date: 2024-06-20
RA: 01h 23m 43s   Decl: +02° 25’ 51”
in Cetus
C/2014 UN271 (Bernardinelli-Bernstein)

C/2014 UN271 (Bernardinelli-Bernstein)   radio_button_checked

Magnitude: 15.3 (Observed - COBS) trending_flat
Coma Diameter: 2.1'
Tail Length: n/a
Observation Date: 2024-06-19
RA: 03h 55m 22s   Decl: -62° 23’ 12”
in Reticulum
C/2019 T4 (ATLAS)

C/2019 T4 (ATLAS)   radio_button_checked

Magnitude: 15.4 (Observed - COBS) trending_down
Coma Diameter: 1.6'
Tail Length: n/a
Observation Date: 2024-06-18
RA: 17h 24m 32s   Decl: +33° 09’ 21”
in Hercules
C/2022 N2 (PANSTARRS)

C/2022 N2 (PANSTARRS)   radio_button_checked

Magnitude: 16.3 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2024-06-17
RA: 23h 02m 48s   Decl: -04° 28’ 25”
in Aquarius
C/2022 S4 (Lemmon)

C/2022 S4 (Lemmon)   radio_button_checked

Magnitude: 16.5 (Observed - COBS) trending_up
Coma Diameter: 1.1'
Tail Length: n/a
Observation Date: 2024-06-20
RA: 04h 49m 28s   Decl: -47° 10’ 46”
in Pictor
125P/Spacewatch

125P/Spacewatch   radio_button_checked

Magnitude: 17.0 (Observed - COBS) trending_down
Coma Diameter: 0.3'
Tail Length: n/a
Observation Date: 2024-06-17
RA: 21h 52m 37s   Decl: -03° 26’ 43”
in Aquarius
C/2022 L2 (ATLAS)

C/2022 L2 (ATLAS)   radio_button_checked

Magnitude: 13.6 (Predicted - JPL) trending_down
RA: 09h 44m 34s   Decl: -23° 04’ 10”
in Hydra
C/2022 E2 (ATLAS)

C/2022 E2 (ATLAS)   radio_button_checked

Magnitude: 14.1 (Predicted - JPL) trending_up
RA: 07h 03m 45s   Decl: +36° 20’ 52”
in Auriga
P/2010 H2 (Vales)

P/2010 H2 (Vales)   radio_button_checked

Magnitude: 15.1 (Predicted - JPL) trending_down
RA: 09h 08m 35s   Decl: +28° 21’ 15”
in Cancer
C/2020 K1 (PANSTARRS)

C/2020 K1 (PANSTARRS)   radio_button_checked

Magnitude: 16.1 (Predicted - JPL) trending_down
RA: 06h 08m 49s   Decl: -36° 38’ 46”
in Columba
C/2019 U5 (PANSTARRS)

C/2019 U5 (PANSTARRS)   radio_button_checked

Magnitude: 16.1 (Predicted - JPL) trending_down
RA: 07h 31m 53s   Decl: -31° 56’ 00”
in Puppis
32P/Comas Sola

32P/Comas Sola   radio_button_checked

Magnitude: 16.3 (Predicted - JPL) trending_down
RA: 08h 26m 20s   Decl: +26° 26’ 31”
in Cancer
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