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  2. Lists of comets - Wikipedia

    en.wikipedia.org/wiki/Lists_of_comets

    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 ...

  3. List of comets by type - Wikipedia

    en.wikipedia.org/wiki/List_of_comets_by_type

    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 ...

  4. List of numbered comets - Wikipedia

    en.wikipedia.org/wiki/List_of_numbered_comets

    This is a list of periodic comets that were numbered by the Minor Planet Center after having been observed on at least two occasions. Their orbital periods vary from 3.2 to 366 years. As of October 2023 [update] there are 471 numbered comets (1P–471P). [ 1 ]

  5. Category:Lists of comets - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_comets

    Download as PDF; Printable version; Appearance. move to sidebar hide. Help. Pages in category "Lists of comets" The following 14 pages are in this category, out of 14 ...

  6. 5 of the rarest astronomical events—and when you'll next see them

    www.aol.com/5-rarest-astronomical-events-mdash...

    Halley's discovery was the first to prove comets could make periodic return visits to our night sky, disproving the idea that all comets only move through our solar system once. Halley's Comet ...

  7. List of periodic comets - Wikipedia

    en.wikipedia.org/wiki/List_of_periodic_comets

    Periodic comets (also known as short-period comets) are comets with orbital periods of less than 200 years or that have been observed during more than a single perihelion passage [1] (e.g. 153P/Ikeya–Zhang). "Periodic comet" is also sometimes used to mean any comet with a periodic orbit, even if greater than 200 years.

  8. This comet is making its 80,000-year orbit around Earth. Here ...

    www.aol.com/news/comet-making-80-000-orbit...

    The approach of Comet Tsuchinshan–ATLAS has particularly excited astronomers because it is a long-period comet, meaning the comet takes more than 200 years — or 80,000 years in this case ...

  9. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.