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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

217P/LINEAR  radio_button_checked

Magnitude: 13.3 (Observed - COBS) trending_down
Coma Diameter: 0.9'
Tail Length: n/a
Observation Date: 2025-07-06
Apparent: 05h 25m 14s  +15° 25’ 42”
J2000: 05h 23m 46s  +15° 24’ 23”
in Orion
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P/2010 H2 (Vales)

P/2010 H2 (Vales)  radio_button_checked

Magnitude: 14.4 (Predicted - JPL) trending_down
Apparent: 13h 22m 11s  -01° 35’ 35”
J2000: 13h 20m 53s  -01° 27’ 35”
in Virgo
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65P/Gunn

65P/Gunn  radio_button_checked

Magnitude: 14.5 (Observed - COBS) trending_flat
Coma Diameter: 1.5'
Tail Length: n/a
Observation Date: 2025-07-06
Apparent: 18h 28m 17s  -32° 09’ 56”
J2000: 18h 26m 37s  -32° 10’ 57”
in Sagittarius
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C/2021 G2 (Atlas)

C/2021 G2 (Atlas)  radio_button_checked

Magnitude: 14.7 (Observed - COBS) trending_down
Coma Diameter: 0.7'
Tail Length: n/a
Observation Date: 2025-07-10
Apparent: 15h 06m 11s  -01° 06’ 29”
J2000: 15h 04m 52s  -01° 00’ 36”
in Libra
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C/2024 E1 (Wierzchos)

C/2024 E1 (Wierzchos)  radio_button_checked

Magnitude: 15.1 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-07-12
Apparent: 16h 23m 56s  +53° 55’ 31”
J2000: 16h 23m 21s  +53° 59’ 00”
in Draco
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C/2022 N2 (PANSTARRS)

C/2022 N2 (PANSTARRS)  radio_button_checked

Magnitude: 15.1 (Predicted - JPL) trending_up
Apparent: 02h 50m 46s  +21° 29’ 37”
J2000: 02h 49m 19s  +21° 23’ 20”
in Aries
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240P/NEAT

240P/NEAT  radio_button_checked

Magnitude: 15.2 (Observed - COBS) trending_up
Coma Diameter: 0.4'
Tail Length: 1.1'
Observation Date: 2025-07-12
Apparent: 02h 55m 27s  -04° 26’ 06”
J2000: 02h 54m 10s  -04° 32’ 16”
in Eridanus
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C/2022 E2 (ATLAS)

C/2022 E2 (ATLAS)  radio_button_checked

Magnitude: 15.4 (Predicted - JPL) trending_flat
Apparent: 01h 42m 15s  +54° 45’ 32”
J2000: 01h 40m 36s  +54° 37’ 49”
in Perseus
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C/2025 K1 (ATLAS)

C/2025 K1 (ATLAS)  radio_button_checked

Magnitude: 15.4 (Observed - COBS) trending_up
Coma Diameter: 0.5'
Tail Length: 0.8'
Observation Date: 2025-07-07
Apparent: 21h 30m 28s  +23° 41’ 52”
J2000: 21h 29m 19s  +23° 35’ 06”
in Pegasus
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C/2024 J3 (ATLAS)

C/2024 J3 (ATLAS)  radio_button_checked

Magnitude: 15.5 (Observed - COBS) trending_flat
Coma Diameter: 0.3'
Tail Length: n/a
Observation Date: 2025-07-14
Apparent: 19h 07m 29s  -16° 26’ 45”
J2000: 19h 06m 01s  -16° 29’ 12”
in Sagittarius
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C/2024 J2 (Wierzchos)

C/2024 J2 (Wierzchos)  radio_button_checked

Magnitude: 15.6 (Predicted - JPL) trending_down
Apparent: 02h 52m 27s  -03° 17’ 55”
J2000: 02h 51m 09s  -03° 24’ 10”
in Eridanus
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C/2023 R1 (PANSTARRS)

C/2023 R1 (PANSTARRS)  radio_button_checked

Magnitude: 15.8 (Predicted - JPL) trending_up
Apparent: 21h 41m 54s  +25° 37’ 47”
J2000: 21h 40m 44s  +25° 30’ 46”
in Pegasus
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C/2022 QE78 (ATLAS)

C/2022 QE78 (ATLAS)  radio_button_checked

Magnitude: 15.8 (Predicted - JPL) trending_flat
Apparent: 07h 47m 04s  +18° 15’ 07”
J2000: 07h 45m 35s  +18° 18’ 56”
in Gemini
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48P/Johnson

48P/Johnson  radio_button_checked

Magnitude: 15.9 (Observed - COBS) trending_flat
Coma Diameter: 0.6'
Tail Length: n/a
Observation Date: 2025-07-06
Apparent: 03h 00m 34s  +05° 06’ 43”
J2000: 02h 59m 13s  +05° 00’ 41”
in Cetus
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C/2023 A3 (Tsuchinshan-ATLAS)

C/2023 A3 (Tsuchinshan-ATLAS)  radio_button_checked

Magnitude: 16.2 (Observed - COBS) trending_down
Coma Diameter: 0.4'
Tail Length: n/a
Observation Date: 2025-07-11
Apparent: 18h 38m 25s  +27° 47’ 33”
J2000: 18h 37m 24s  +27° 46’ 09”
in Lyra
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C/2024 L5 (ATLAS)

C/2024 L5 (ATLAS)  radio_button_checked

Magnitude: 16.2 (Observed - COBS) trending_down
Coma Diameter: 0.2'
Tail Length: n/a
Observation Date: 2025-07-14
Apparent: 11h 02m 53s  -02° 29’ 11”
J2000: 11h 01m 35s  -02° 20’ 55”
in Leo
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C/2023 C2 (ATLAS)

C/2023 C2 (ATLAS)  radio_button_checked

Magnitude: 16.3 (Predicted - JPL) trending_flat
Apparent: 23h 43m 14s  +50° 01’ 19”
J2000: 23h 41m 59s  +49° 52’ 49”
in Cassiopeia
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C/2024 A1 (ATLAS)

C/2024 A1 (ATLAS)  radio_button_checked

Magnitude: 16.6 (Predicted - JPL) trending_flat
Apparent: 07h 38m 09s  +20° 37’ 54”
J2000: 07h 36m 39s  +20° 41’ 25”
in Gemini
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C/2025 F2 (SWAN)

C/2025 F2 (SWAN)  radio_button_checked

Magnitude: 16.6 (Predicted - JPL) trending_down
Apparent: 06h 19m 04s  -41° 29’ 46”
J2000: 06h 18m 16s  -41° 29’ 04”
in Columba
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60P/Tsuchinshan

60P/Tsuchinshan  radio_button_checked

Magnitude: 16.8 (Predicted - JPL) trending_up
Apparent: 08h 02m 24s  +19° 11’ 19”
J2000: 08h 00m 55s  +19° 15’ 38”
in Cancer
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