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  2. C/2014 UN271 (Bernardinelli–Bernstein) - Wikipedia

    en.wikipedia.org/wiki/C/2014_UN271_(Bernardinelli...

    Even at its minimum estimated diameter, C/2014 UN 271 is the largest Oort cloud comet discovered, being more than 50 times larger than a typical comet which is less than 2 km (1.2 mi) in diameter. The previous largest known long-period comet was C/2002 VQ 94 (LINEAR) with a diameter of 96 km (60 mi), [35] followed by Comet Hale–Bopp at 74 km ...

  3. Lists of comets - Wikipedia

    en.wikipedia.org/wiki/Lists_of_comets

    Coin showing Caesar's Comet as a star with eight rays, tail upward. Non-periodic comets are seen only once. They are usually on near-parabolic orbits that will not return to the vicinity of the Sun for thousands of years, if ever.

  4. List of long-period comets - Wikipedia

    en.wikipedia.org/wiki/List_of_long-period_comets

    The following list is of comets with very long orbital periods, defined as between 200 and 1000 years.These comets come from the Kuiper belt and scattered disk, beyond the orbit of Pluto, with possible origins in the Oort cloud for many.

  5. NASA spots ‘record-breaking’ comet hurtling toward ... - AOL

    www.aol.com/nasa-spots-record-breaking-comet...

    The space agency said it’s the biggest comet nucleus ever recorded with an estimated diameter of 80 miles. On the whole, it’s bigger than the state of Rhode Island.

  6. Great comet - Wikipedia

    en.wikipedia.org/wiki/Great_comet

    Comet McNaught as the Great Comet of 2007. A great comet is a comet that becomes exceptionally bright. There is no official definition; often the term is attached to comets such as Halley's Comet, which during certain appearances are bright enough to be noticed by casual observers who are not looking for them, and become well known outside the astronomical community.

  7. The mega-comet hurtling through our solar system is 85, yes ...

    www.aol.com/mega-comet-hurtling-solar-system...

    Named Comet Bernardinelli-Bernstein, it was perhaps the largest comet ever detected, likely some 10 times larger than the 6-mile-wide object that pummeled Earth and triggered the dinosaurs ...

  8. 4 billion-year-old comet, largest ever seen, set to pass ...

    www.aol.com/news/largest-comet-ever-seen...

    A huge comet with a solid center more than twice the width of Rhode Island is on an orbital path that will swing it inside our cosmic neighborhood, astronomers 4 billion-year-old comet, largest ...

  9. List of periodic comets - Wikipedia

    en.wikipedia.org/wiki/List_of_periodic_comets

    In comet nomenclature, the letter before the "/" is either "C" (a non-periodic comet), "P" (a periodic comet), "D" (a comet that has been lost or has disintegrated), "X" (a comet for which no reliable orbit could be calculated —usually historical comets), "I" for an interstellar object, or "A" for an object that was either mistakenly ...