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This is a list of comets (bodies that travel in elliptical, parabolic, and sometimes hyperbolic orbits and display a tail behind them) listed by type. Comets are sorted into four categories: periodic comets (e.g. Halley's Comet), non-periodic comets (e.g. Comet Hale–Bopp), comets with no meaningful orbit (the Great Comet of 1106), and lost comets (), displayed as either P (periodic), C (non ...
Pages in category "Non-periodic comets" The following 146 pages are in this category, out of 146 total. ... Great Comet of 1402; Great Comet of 1472; C/1490 Y1; Great ...
C/2024 G3 (ATLAS) is a non-periodic comet, which reached perihelion on 13 January 2025, at a distance of 0.09 AU (13 million km) from the Sun. It is potentially the brightest comet of 2025, [6] with an apparent magnitude reaching −3.8 on the day of its perihelion. [5] The comet is visible in the southern hemisphere before and after perihelion.
Periodic comets usually have elongated elliptical orbits, and usually return to the vicinity of the Sun after a number of decades. The official names of non-periodic comets begin with a "C"; the names of periodic comets begin with "P" or a number followed by "P". Comets that have been lost or disappeared have names with a "D". Comets whose ...
The Great Comet of 1577 is a well-known example of a great comet. It passed near Earth as a non-periodic comet and was seen by many, including well-known astronomers Tycho Brahe and Taqi ad-Din. Observations of this comet led to several significant findings regarding cometary science, especially for Brahe.
The comet passed at a distance of 0.0982 astronomical units (14,690,000 km; 9,130,000 mi) from Earth on 4 July, making it the fourth closest known approach of a comet to Earth in the 19th century. [3] Consequently the comet moved away from both the Earth and the Sun, while brightening moonlight hampered observations.
It has the systematic designation C/2020 F3, indicating a non-periodic comet which was the third discovered in the second half of March 2020. Comet NEOWISE made its closest approach to the Sun (perihelion) on July 3, 2020, at a distance of 0.29 AU (43 million km; 27 million mi).
Comet Erasmus, formally designated as C/2020 S3, is a non-periodic comet that became barely visible to the naked eye during the later months of 2020. Its maximum brightness peaked as a 3rd-magnitude object in the night sky, however its proximity to the Sun made it a difficult object to view from the ground.