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Charles Messier. The first edition of 1774 covered 45 objects (M1 to M45).The total list published by Messier in 1781 contained 103 objects, but the list was expanded through successive additions by other astronomers, motivated by notes in Messier's and Méchain's texts indicating that at least one of them knew of the additional objects.
Charles Messier (French: [ʃaʁl me.sje]; 26 June 1730 – 12 April 1817) was a French astronomer. He published an astronomical catalogue consisting of 110 nebulae and star clusters , which came to be known as the Messier objects , referred to with the letter M and their number between 1 and 110.
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WISEP — Wide-field Infrared Survey Explorer Preliminary Release Source Catalog; WNC / Winn — Winnecke Catalogue of Double Stars; WNO — Washington Observations (double stars) (U.S. Naval Observatory, Washington D.C.) Wo — Woolley Nearby Star Catalogue; Wolf — Catalogue of High Proper Motion Stars ; Worley — Charles E. Worley (double ...
1712 — Isaac Newton and Edmond Halley publish a catalog based on data from a Royal Astronomer who left all his data under seal, the official version would not be released for another decade. [7] 1725 — Posthumous publication of John Flamsteed's Historia Coelestis Britannica; 1771 — Charles Messier publishes his first list of nebulae
A Messier marathon is an attempt, usually organized by amateur astronomers, to find as many Messier objects as possible during one night. The Messier catalogue was compiled by French astronomer Charles Messier during the late 18th century and consists of 110 relatively bright deep-sky objects (galaxies, nebulae, and star clusters).
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Messier 102 (also known as M102) is a galaxy listed in the Messier Catalogue that cannot be unambiguously identified. Its original discoverer Pierre Méchain retracted his discovery two years after publication and said that it was a duplicate observation of Messier 101 . [ 1 ]