Comets in 2025

3I/ATLAS, also known as C/2025 N1 (ATLAS) and previously as A11pl3Z, is an interstellar comet discovered on 1 July 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station. The comet follows an unbound, hyperbolic trajectory past the Sun, and passed by Earth at 1.8 AU, posing no threat. The prefix "3I" designates it as the third confirmed interstellar object passing through the Solar System, after 1I/Oumuamua and 2I/Borisov.

{| class=wikitable style="text-align:center; font-size:11px; float:right; margin:2px" |- bgcolor= style="font-size: smaller;" | colspan="8" style="text-align:center;"|Perihelion distanceat different epochs |- ! Epoch !! Perihelion(AU) |- | 1894 || 1.23 |- | 1900 || 0.93 |- | 1985 || 1.03 |- | 2031 || 1.07 |- | 2078 || 0.97 |}

65P/Gunn is a periodic comet in the Solar System orbiting the Sun every 6.41 years inside the main asteroid belt between the orbits of the planets Mars and Jupiter.

49P/Arend–Rigaux is a periodic comet with a 6.75-year orbit around the Sun. It is the first of three comets discovered by Belgian astronomer Sylvain Arend and the only one for Fernand Rigaux.

47P/Ashbrook–Jackson is a Jupiter-family comet with an 8.35-year orbit around the Sun. It is the only comet discovered by Joseph Ashbrook and the third and final one by Cyril V. Jackson.

48P/Johnson is a periodic comet in the Solar System.

non-periodic comet

non-periodic comet

60P/Tsuchinshan, also known as Tsuchinshan 2, is a Jupiter-family comet with an orbital period of around 6.63 years. Tsuchinshan is the Wade-Giles transliteration corresponding to the pinyin Zǐjīn Shān 紫金山, which is Mandarin Chinese for "Purple Mountain".

210P/Christensen is a Jupiter family comet with an orbital period of 5.7 years. It was discovered by Eric J. Christensen on 26 May 2003 in images taken by the Catalina Sky Survey and recovered in images obtained by STEREO, the first time a single-apparition comet was recovered by a spacecraft.

long-period sungrazing comet which disintegrated after perihelion in 2025

172P/Yeung is a Jupiter-family comet with a 6.59-year orbit around the Sun. It is the first of two comets discovered by Hong Kong/Canadian astronomer, William Kwong Yu Yeung.

{| class=wikitable style="text-align:center" |+ The Outward Migration of 43P !Year (epoch)!!2017!!2020!!2025 |- |Semi-major axis || 3.35 || 4.30 || 4.33 |- |Perihelion || 1.35 || 2.39 || 2.44 |- |Aphelion || 5.34 || 6.20 || 6.22 |}

164P/Christensen is a periodic comet in the Solar System.

parabolic comet

136P/Mueller, also known as Mueller 3, is a periodic comet in the Solar System.

217P/LINEAR is a periodic Jupiter-family comet with an orbital period of 7.83 years. It was discovered by LINEAR on 11 July 2001.

non-periodic comet

non-periodic comet

240P/NEAT is a Jupiter-family comet with an orbital period of 7.61 years. It was discovered by Near Earth Asteroid Tracking (NEAT) on 7 December 2002.

249P/LINEAR is a Jupiter-family comet with an orbital period of 4.61 years. It was discovered by LINEAR on 19 October 2006. It is only active for a brief period around perihelion.