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  2. Messier object - Wikipedia

    en.wikipedia.org/wiki/Messier_object

    Méchain later concluded that this object was simply a re-observation of M101, though some sources suggest that the object Méchain observed was the galaxy NGC 5866 and identify that as M102. [ 12 ] Messier's final catalogue was included in the Connaissance des Temps pour l'Année 1784 [ Knowledge of the Times for the Year 1784 ], the French ...

  3. Halley's Comet - Wikipedia

    en.wikipedia.org/wiki/Halley's_Comet

    The confirmation of the comet's return was the first time anything other than planets had been shown to orbit the Sun. [36] It was also one of the earliest successful tests of Newtonian physics, and a clear demonstration of its explanatory power. [37] The comet was first named in Halley's honour by French astronomer Nicolas-Louis de Lacaille in ...

  4. Francis 1st - Wikipedia

    en.wikipedia.org/wiki/Francis_1st

    Francis 1st flatware was produced by Reed & Barton Silversmiths. The original backstamp featured a lion, an eagle, and the letter “R”; Commonly called "Eagle-R-Lion". in about 1950 a new backstamp came into use which reads “Reed and Barton". This flatware was made in the US and is warranted by its production company for 100 years.

  5. 26P/Grigg–Skjellerup - Wikipedia

    en.wikipedia.org/wiki/26P/Grigg–Skjellerup

    Comet Grigg–Skjellerup (formally designated 26P/Grigg–Skjellerup) is a periodic comet. It was visited by the Giotto probe in July 1992. [ 6 ] The spacecraft came as close as 200 km, but could not take pictures because some instruments were damaged from its encounter with Halley's Comet . [ 7 ]

  6. Comet Kohoutek - Wikipedia

    en.wikipedia.org/wiki/Comet_Kohoutek

    Comet Kohoutek (formally designated C/1973 E1 and formerly as 1973 XII and 1973f) [c] is a comet that passed close to the Sun towards the end of 1973. Early predictions of the comet's peak brightness suggested that it had the potential to become one of the brightest comets of the 20th century, capturing the attention of the wider public and the press and earning the comet the moniker of "Comet ...

  7. Observational history of comets - Wikipedia

    en.wikipedia.org/.../Observational_history_of_comets

    A great comet appeared in the sky above Europe on 1577 AD. Tycho Brahe decided to try and estimate the distance to this comet by measuring its parallax, the effect whereby the position or direction of an object appears to differ when viewed from different positions. He proposed that comets (like planets) return to their respective positions in ...

  8. 27P/Crommelin - Wikipedia

    en.wikipedia.org/wiki/27P/Crommelin

    Comet Crommelin, also known as Comet Pons-Coggia-Winnecke-Forbes, is a periodic comet with an orbital period of almost 28 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years). It is named after the British astronomer Andrew C. D. Crommelin who calculated its orbit in 1930.

  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 ...