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A time-lapse of comet C/2023 A3 (Tsuchinshan–ATLAS) captured on 10 May 2024. By January 2024, the comet had brightened to an apparent magnitude of 13.6 and according to Bob King, author in Sky & Telescope magazine, was visible through 15-inch telescopes at ×142 magnification. [10]
C/2024 L5 (ATLAS) is a comet that was discovered on 14 June 2024 as A117uUD by the Asteroid Terrestrial-impact Last Alert System (ATLAS), South Africa, Sutherland. It will reach perihelion on 10 March 2025 at 3.432 AU (513.4 million km ) from the Sun. [ 4 ] [ 5 ]
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" may also be an incomplete reference to a comet co-discovered by the Asteroid Terrestrial-impact Last Alert System survey. These include: C/2019 F1 (ATLAS–Africano) C/2020 K8 (Catalina–ATLAS) C/2022 A3 (Lemmon–ATLAS) C/2023 A3 (Tsuchinshan–ATLAS), also known as the Great Comet of 2024
By definition, a hyperbolic orbit means that the comet will only travel through the Solar System once, with the Sun acting as a gravitational slingshot, sending the comet hurtling out of the Solar System entirely unless its eccentricity is otherwise changed. Comets orbiting in this way still originate from the Solar System, however.
A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing.This produces an extended, gravitationally unbound atmosphere or coma surrounding the nucleus, and sometimes a tail of gas and dust gas blown out from the coma.
The Oort Cloud comet called C/2023 A3 Tsuchinshan-ATLAS will make its first close pass by Earth in mid-October and won’t be back for another 80,000 years Image credits: Gerald Rhemann Image ...
C/2024 S1 (ATLAS) (previously had the temporary designation A11bP7I) was a sungrazing comet that was discovered from the ATLAS–HKO in Hawaii on 27 September 2024. The comet passed its perihelion on 28 October 2024, at a distance of about 0.008 AU (1.2 million km; 0.74 million mi) from the barycenter of the Solar System, [ 1 ] and disintegrated.