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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 ATLAS reached perihelion, its closest point to the Sun, on Jan. 13. From now on, it will get dimmer in the night sky each day. The view for those of us down on Earth won’t be as clear as ...
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).
On Jan. 13, the comet is expected to reach perihelion (its closest point to the Sun). At this time, the comet will come within approximately 8.3 million miles of the Sun. The same day, it's also ...
A recently discovered comet, named C/2023 A3 Tsuchinshan–ATLAS, makes its closest approach of Earth on Saturday. The comet’s next appearance may be in 80,000 years.
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 ...
A bright comet could be visible in skies across the globe over the coming days for the first time in 160,000 years. Nasa said the future brightness of a comet is "notoriously hard" to predict, but ...
For Mercury, the perihelion precession rate due to general relativistic effects is 43″ per century. By comparison, the precession due to perturbations from the other planets in the Solar System is 532″ per century, whereas the oblateness of the Sun (quadrupole moment) causes a negligible contribution of 0.025″ per century. [10] [11]