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Comets

This section 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.

Legend of symbols: ⓘ

217P/LINEAR  radio_button_checked

217P/LINEAR

217P/LINEAR  radio_button_checked

Magnitude: 12.9 (Observed - COBS) trending_down
Coma Diameter: 1.2'
Tail Length: 1.1'
Observation Date: 2025-06-26
Apparent: 04h 30m 26s  +13° 47’ 02”
J2000: 04h 28m 59s  +13° 43’ 46”
in Taurus
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29P/Schwassmann-Wachmann  radio_button_checked

29P/Schwassmann-Wachmann

29P/Schwassmann-Wachmann  radio_button_checked

Magnitude: 13.6 (Observed - COBS) trending_flat
Coma Diameter: 2.4'
Tail Length: n/a
Observation Date: 2025-06-27
Apparent: 09h 58m 12s  +08° 47’ 49”
J2000: 09h 56m 51s  +08° 55’ 08”
in Leo
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P/2010 H2 (Vales)  radio_button_checked

P/2010 H2 (Vales)

P/2010 H2 (Vales)  radio_button_checked

Magnitude: 14.2 (Predicted - JPL) trending_down
Apparent: 13h 12m 43s  +00° 47’ 54”
J2000: 13h 11m 25s  +00° 56’ 00”
in Virgo
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C/2021 G2 (Atlas)  radio_button_checked

C/2021 G2 (Atlas)

C/2021 G2 (Atlas)  radio_button_checked

Magnitude: 14.2 (Observed - COBS) trending_down
Coma Diameter: 0.8'
Tail Length: n/a
Observation Date: 2025-06-27
Apparent: 15h 06m 20s  -01° 49’ 48”
J2000: 15h 05m 01s  -01° 43’ 55”
in Libra
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C/2024 E1 (Wierzchos)  radio_button_checked

C/2024 E1 (Wierzchos)

C/2024 E1 (Wierzchos)  radio_button_checked

Magnitude: 14.7 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 16h 52m 25s  +57° 08’ 19”
J2000: 16h 51m 57s  +57° 10’ 48”
in Draco
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C/2014 UN271 (Bernardinelli-Bernstein)  radio_button_checked

C/2014 UN271 (Bernardinelli-Bernstein)

C/2014 UN271 (Bernardinelli-Bernstein)  radio_button_checked

Magnitude: 14.8 (Observed - COBS) trending_flat
Coma Diameter: 0.9'
Tail Length: n/a
Observation Date: 2025-06-25
Apparent: 04h 53m 13s  -65° 59’ 40”
J2000: 04h 53m 08s  -66° 02’ 07”
in Dorado
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C/2022 E2 (ATLAS)  radio_button_checked

C/2022 E2 (ATLAS)

C/2022 E2 (ATLAS)  radio_button_checked

Magnitude: 14.9 (Observed - COBS) trending_flat
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 01h 51m 40s  +53° 03’ 35”
J2000: 01h 50m 01s  +52° 56’ 03”
in Perseus
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C/2022 N2 (PANSTARRS)  radio_button_checked

C/2022 N2 (PANSTARRS)

C/2022 N2 (PANSTARRS)  radio_button_checked

Magnitude: 15.3 (Predicted - JPL) trending_up
Apparent: 02h 32m 22s  +19° 47’ 39”
J2000: 02h 30m 57s  +19° 40’ 56”
in Aries
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C/2025 F2 (SWAN)  radio_button_checked

C/2025 F2 (SWAN)

C/2025 F2 (SWAN)  radio_button_checked

Magnitude: 15.3 (Predicted - JPL) trending_down
Apparent: 06h 01m 51s  -32° 33’ 06”
J2000: 06h 00m 54s  -32° 33’ 03”
in Columba
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C/2024 J2 (Wierzchos)  radio_button_checked

C/2024 J2 (Wierzchos)

C/2024 J2 (Wierzchos)  radio_button_checked

Magnitude: 15.3 (Predicted - JPL) trending_down
Apparent: 02h 32m 02s  +02° 31’ 46”
J2000: 02h 30m 43s  +02° 25’ 03”
in Cetus
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C/2023 C2 (ATLAS)  radio_button_checked

C/2023 C2 (ATLAS)

C/2023 C2 (ATLAS)  radio_button_checked

Magnitude: 15.4 (Observed - COBS) trending_down
Coma Diameter: 0.8'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 23h 42m 35s  +45° 18’ 12”
J2000: 23h 41m 19s  +45° 09’ 43”
in Andromeda
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C/2023 A3 (Tsuchinshan-ATLAS)  radio_button_checked

C/2023 A3 (Tsuchinshan-ATLAS)

C/2023 A3 (Tsuchinshan-ATLAS)  radio_button_checked

Magnitude: 15.6 (Observed - COBS) trending_down
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2025-06-27
Apparent: 19h 02m 03s  +28° 57’ 25”
J2000: 19h 01m 02s  +28° 55’ 10”
in Lyra
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65P/Gunn  radio_button_checked

65P/Gunn

65P/Gunn  radio_button_checked

Magnitude: 15.7 (Predicted - JPL) trending_flat
Apparent: 18h 41m 03s  -31° 26’ 43”
J2000: 18h 39m 24s  -31° 28’ 12”
in Sagittarius
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C/2022 QE78 (ATLAS)  radio_button_checked

C/2022 QE78 (ATLAS)

C/2022 QE78 (ATLAS)  radio_button_checked

Magnitude: 15.8 (Predicted - JPL) trending_flat
Apparent: 07h 31m 05s  +17° 57’ 18”
J2000: 07h 29m 36s  +18° 00’ 34”
in Gemini
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C/2024 J3 (ATLAS)  radio_button_checked

C/2024 J3 (ATLAS)

C/2024 J3 (ATLAS)  radio_button_checked

Magnitude: 16.2 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 19h 20m 47s  -17° 43’ 26”
J2000: 19h 19m 19s  -17° 46’ 21”
in Sagittarius
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C/2025 K1 (ATLAS)  radio_button_checked

C/2025 K1 (ATLAS)

C/2025 K1 (ATLAS)  radio_button_checked

Magnitude: 16.2 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 22h 11m 34s  +20° 46’ 18”
J2000: 22h 10m 21s  +20° 38’ 44”
in Pegasus
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240P/NEAT  radio_button_checked

240P/NEAT

240P/NEAT  radio_button_checked

Magnitude: 16.4 (Predicted - JPL) trending_up
Apparent: 02h 29m 45s  -06° 05’ 10”
J2000: 02h 28m 29s  -06° 11’ 57”
in Cetus
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C/2023 R1 (PANSTARRS)  radio_button_checked

C/2023 R1 (PANSTARRS)

C/2023 R1 (PANSTARRS)  radio_button_checked

Magnitude: 16.5 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-06-26
Apparent: 22h 05m 27s  +25° 27’ 38”
J2000: 22h 04m 16s  +25° 20’ 10”
in Pegasus
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C/2024 A1 (ATLAS)  radio_button_checked

C/2024 A1 (ATLAS)

C/2024 A1 (ATLAS)  radio_button_checked

Magnitude: 16.5 (Predicted - JPL) trending_down
Apparent: 07h 23m 32s  +18° 43’ 11”
J2000: 07h 22m 02s  +18° 46’ 12”
in Gemini
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C/2023 H5 (Lemmon)  radio_button_checked

C/2023 H5 (Lemmon)

C/2023 H5 (Lemmon)  radio_button_checked

Magnitude: 16.6 (Observed - COBS) trending_flat
Coma Diameter: 0.6'
Tail Length: 1.7'
Observation Date: 2025-06-23
Apparent: 10h 55m 20s  +64° 10’ 24”
J2000: 10h 53m 41s  +64° 18’ 34”
in Ursa Major
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