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  2. Messier object - Wikipedia

    en.wikipedia.org/wiki/Messier_object

    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.

  3. Astronomical catalogue - Wikipedia

    en.wikipedia.org/wiki/Astronomical_catalogue

    The Messier catalogue: the Messier objects are a set of astronomical objects first listed by French astronomer Charles Messier in 1771. Nebulae and Star Clusters was published in 1781, with objects M1–M110. The New General Catalogue or NGC, compiled in the 1880s by J. L. E. Dreyer, lists objects NGC 0001 – NGC 7840. It is one of the largest ...

  4. File:MessierStarChart.svg - Wikipedia

    en.wikipedia.org/wiki/File:MessierStarChart.svg

    You are free: to share – to copy, ... Simple single page Star Chart for the Messier Objects. SVG format. -- w:Jim Cornmell 11:45, 6 September 2006 (UTC)

  5. Messier marathon - Wikipedia

    en.wikipedia.org/wiki/Messier_marathon

    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 ).

  6. Caldwell catalogue - Wikipedia

    en.wikipedia.org/wiki/Caldwell_catalogue

    While the Messier catalogue is used by amateur astronomers as a list of deep-sky objects for observation, Moore noted that Messier's list was not compiled for that purpose and excluded many of the sky's brightest deep-sky objects, [1] such as the Hyades, the Double Cluster (NGC 869 and NGC 884), and the Sculptor Galaxy (NGC 253). The Messier ...

  7. Bortle scale - Wikipedia

    en.wikipedia.org/wiki/Bortle_scale

    With other constellations such as Scutum, Hercules, Corona Borealis, Scorpius, Bootes, Libra, a hint of Lyra star and a hint of Sagittarius star and Messier objects such as M16 and M24. Light pollution is small, doesn't obscure the stars and visible Milky Way (at the corner) in the exurban night sky over Kepala Batas, Kedah. The light pollution ...

  8. Messier 15 - Wikipedia

    en.wikipedia.org/wiki/Messier_15

    Messier 15 or M15 (also designated NGC 7078 and sometimes known as the Great Pegasus Cluster) is a globular cluster in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier 's catalogue of comet -like objects in 1764.

  9. Whirlpool Galaxy - Wikipedia

    en.wikipedia.org/wiki/Whirlpool_Galaxy

    The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. [6] [7] [8] It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. [9]