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It will reach perihelion on 10 March 2025 at 3.432 AU (513.4 million km) from the Sun. [4] [5] It is the second known Solar System comet to become interstellar after experiencing a planetary encounter. [5] [1] C/1980 E1 (Bowell) reached a hyperbolic trajectory after an encounter with Jupiter on 9 December 1980.
C/2024 G3 (ATLAS) is a partially disintegrated non-periodic comet, which reached perihelion on 13 January 2025, at a distance of 0.09 AU (13 million km) from the Sun. Dubbed the Great Comet of 2025 , it is currently the brightest comet of 2025, [ 6 ] with an apparent magnitude reaching −3.8 on the day of its perihelion. [ 5 ]
Comet G3 ATLAS (C/2024) is predicted to be visible from parts of Earth throughout the month. On Jan. 13, the comet is expected to reach perihelion (its closest point to the Sun).
Experts say 2025 will be a particularly good year for the annual meteor shower as it will occur on a moonless night, allowing stargazers to see as many as 120 shooting stars per hour.
Dwarf planet 90377 Sedna will reach its perihelion of 76 AU from the Sun. [34] 2079 August 11 Mercury occults Mars, the first since at least 1708. [31] 2083 A star system known as "V Sagittae" is expected to go nova this year (+/- 11 years). 2084 November 10 Transit of Earth as seen from Mars, the first and the only one in this century. 2085 ...
21P/Giacobini-Zinner will next pass perihelion on 25 March 2025, and will have its closest approach to Earth 4 days before, on 21 March. It is expected to brighten to ...
[57]: 4 Science phases run for a few days both before and after each perihelion. They lasted 11.6 days for the earliest perihelion, and will drop to 9.6 days for the final, closest perihelion. [57]: 8 Much of the rest of each orbit is devoted to transmitting data from the science phase.
Earth at perihelion: 4 January, 17:24: Moon occults Saturn: 5 January, 15:17: Moon occults Neptune: ... This page was last edited on 3 January 2025, at 00:06 (UTC).