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  2. Halley's Comet - Wikipedia

    en.wikipedia.org/wiki/Halley's_Comet

    Halley's calculations enabled the comet's earlier appearances to be found in the historical record. The following table sets out the astronomical designations for every apparition of Halley's Comet from 240 BC, the earliest documented sighting. [7] [167] In the designations, "1P/" refers to Halley's Comet; the first periodic comet discovered.

  3. Johann Georg Palitzsch - Wikipedia

    en.wikipedia.org/wiki/Johann_Georg_Palitzsch

    Johann Georg Palitzsch. Johann Georg Palitzsch (11 June 1723 in Prohlis [] [modern Dresden], Electorate of Saxony, Holy Roman Empire) – 21 February 1788 in Prohlis) was a German astronomer who became famous for recovering Comet 1P/Halley (better known as Halley's Comet) on Christmas Day, 1758. [1]

  4. 13P/Olbers - Wikipedia

    en.wikipedia.org/wiki/13P/Olbers

    13P/Olbers is a periodic comet with an orbital period of 69 years. It fits the classical definition of a Halley-type comet with a period between 20 and 200 years. [5] The comet last passed perihelion 30 June 2024 and it was previously seen in 1956.

  5. List of Halley-type comets - Wikipedia

    en.wikipedia.org/wiki/List_of_Halley-type_comets

    Minor planets in comet-like orbits similar to HTCs that never come close enough to the Sun to outgas are called centaurs. HTCs are named after the first discovered member, and the first discovered periodic comet, Halley's Comet, which orbits the Sun in about 75 years, and passing as far as the orbit of Neptune.

  6. Orionids - Wikipedia

    en.wikipedia.org/wiki/Orionids

    The Orionids meteor shower is produced by Halley's Comet, which was named after the astronomer Edmund Halley and last passed through the inner Solar System in 1986 on its 75–76 year orbit. [10] When the comet passes through the Solar System, the Sun sublimates some of the ice, allowing rock particles to break away from the comet.

  7. Comet likely last seen when Neanderthals walked Earth could ...

    www.aol.com/comet-may-not-seen-again-184312682.html

    The comet’s next appearance may be in 80,000 years. ... Sky-gazers won’t want to miss the event since it may be the last time the comet will be seen in the night sky for another 80,000 years ...

  8. 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 ...

  9. Portal:1980s/Selected article/48 - Wikipedia

    en.wikipedia.org/wiki/Portal:1980s/Selected...

    The comet's periodicity was first determined in 1705 by English astronomer Edmond Halley, after whom it is now named. During its 1986 apparition, Halley's Comet became the first comet to be observed in detail by spacecraft, providing the first observational data on the structure of a comet nucleus and the mechanism of coma and tail formation.