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Charles Messier
Charles Messier

Charles Messier (June 26, 1730 – April 12, 1817) was a French astronomer most notable for publishing an astronomical catalog consisting of deep sky objects such as nebulae and star clusters that came to be known as the 103 "Messier objects". Events 363 - Roman Emperor Julian is killed during the retreat from the Sassanid Empire. Year 1730 ( MDCCXXX) was a Common year starting on Sunday (link will display the full calendar of the Gregorian calendar (or a Events 467 - Anthemius is elevated to Emperor of the Western Roman Empire. Year 1817 ( MDCCCXVII) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common This article is about the country For a topic outline on this subject see List of basic France topics. Astronomy (from the Greek words astron (ἄστρον "star" and nomos (νόμος "law" is the scientific study An astronomical catalog or catalogue is a list or tabulation of Astronomical objects typically grouped together because they share a common type morphology origin Deep sky or Deep Sky Object (DSO for short which differs from Deep space, is a term used by amateur astronomers to describe mostly faint Astronomical objects outside A nebula (from Latin: "mist" pl nebulae or nebulæ, with ligature or nebulas) is an Interstellar cloud of Star clusters are groups of Stars which are gravitationally bound The Messier objects are a set of Astronomical objects first listed by French astronomer Charles Messier in his "Catalogue des Nébuleuses The purpose of the catalogue was to help comet hunters (like himself) and other astronomical observers to distinguish between permanent and transient objects in the sky. A comet is a small Solar System body that orbits the Sun and when close enough to the Sun exhibits a visible coma (atmosphere or a tail —

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Messier's life

Messier was born in Badonviller in the Lorraine region of France, the 10th of 12 children of catchpole Nicolas Messier and Francoise b. Badonviller (Badenweiler is a Town and commune of the Meurthe-et-Moselle département, in the Lorraine région Lorraine (Lothringen is one of the 26 régions of France. It is the only administrative region with two cities of equal importance Metz and Nancy This article is about the country For a topic outline on this subject see List of basic France topics. Catchpole is a rare Surname derived from a law enforcement implement found in Medieval England. Grandblaise. Six of his brothers and sisters died young, and in 1741, his father died. Charles' interest in astronomy was stimulated by the appearance of a great six-tailed comet in 1744 and by an annular solar eclipse visible from his hometown on July 25, 1748. A solar eclipse occurs when the Moon passes between the Sun and the Earth so that the Sun is wholly or partially obscured Events 285 - Diocletian appoints Maximian as Caesar, co-ruler Year 1748 ( MDCCXLVIII) was a Leap year starting on Monday (link will display the full calendar of the Gregorian calendar (or a

In 1751 he entered the employ of Joseph Nicolas Delisle, the astronomer of the French Navy, who instructed him to keep careful records of his observations. Joseph-Nicolas Delisle ( April 4, 1688 Paris - 1768 Paris) was a French Astronomer. The French Navy, officially the Marine nationale ( National Navy) and often called La Royale ( The Royal Navy) is the maritime arm Messier's first documented observation was that of the Mercury transit of May 6, 1753. Transit of Mercury Closeup - Nov 8 2006jpg|right|thumb|300px|Close-up of Mercury during the Nov Events 1527 - Spanish and German troops sack Rome; some consider this the end of the Renaissance. Year 1753 ( MDCCLIII) was a Common year starting on Monday (link will display the full calendar of the Gregorian calendar (or a Common year

In 1764, he was made a fellow of the Royal Society, and on June 30, 1770, he was elected to the French Academy of Sciences

Messier discovered thirteen comets [1]:


His catalogue

The first version of Messier's catalogue contained 45 objects and was published in 1774 in the journal of the French Academy of Sciences in Paris. The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660 Events 350 - Roman usurper Nepotianus, of the Constantinian dynasty, is defeated and killed by troops of the Usurper Year 1770 ( MDCCLXX) was a Common year starting on Monday (see link for calendar of the Gregorian calendar (or a Common year starting on Friday The French Academy of Sciences ( French: Académie des sciences) is a Learned society, founded in 1666 by Louis XIV at the Anders Johan Lexell ( December 24 1740 &ndash December 11 1784 ( Julian calendar: November 30) was a Finland-Swedish Pierre François André Méchain ( August 16, 1744 &ndash September 20, 1804) was a French Astronomer and surveyor The French Academy of Sciences ( French: Académie des sciences) is a Learned society, founded in 1666 by Louis XIV at the Paris (ˈpærɨs in English; in French) is the Capital of France and the country's largest city By the time the final version of the catalogue was published in 1781, the list of Messier objects had grown to 103. The Messier objects are a set of astronomical objects catalogued by Charles Messier in his "Catalogue des Nébuleuses et des Amas d'Étoiles" ("Catalogue of Nebulae On several different occasions between 1921 and 1966, astronomers and historians discovered evidence of another seven deep-sky objects that were observed either by Messier or his friend and assistant Pierre Mechain shortly after the final version was published. Pierre François André Méchain ( August 16, 1744 &ndash September 20, 1804) was a French Astronomer and surveyor These seven objects, M104 through M110, are accepted by many astronomers as "official" Messier objects. The Sombrero Galaxy (also known as M 104 or NGC 4594) is an unbarred Spiral galaxy in the Constellation Messier 110 (also known as M110 and NGC 205) is a Dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy. The objects' designations, from M1 to M110, are still in use by professional and amateur astronomers today. The Crab Nebula  (catalogue designations M 1 NGC 1952 Taurus A is a Supernova remnant and Pulsar wind nebula in the Constellation Amateur astronomy, a subset of Astronomy, is a Hobby whose participants enjoy studying and observing celestial objects

The catalog is not scientifically organized by object type or by location (as the later New General Catalogue would be). The New General Catalogue ( NGC) is the best-known catalogue of Deep sky objects in Amateur astronomy. Nonetheless, the Messier catalog comprises examples of every known deep sky object, including galaxies, planetary nebulae, open clusters, and globular clusters. A galaxy is a massive gravitationally bound system consisting of Stars an Interstellar medium of gas and dust, and Dark matter A planetary nebula is an Emission nebula consisting of a glowing shell of Gas and plasma formed by certain types of Stars when they die An open cluster is a group of up to a few thousand Stars that were formed from the same Giant molecular cloud, and are still loosely gravitationally A globular cluster is a spherical collection of Stars that orbits a galactic core as a Satellite. Because these objects were accessible to the relatively small aperture telescope (approximately 102 mm, or 4 inches) used by Messier to study the sky, they are among the most spectacular deep sky objects available to modern amateur astronomers using much better equipment. A telescope is an instrument designed for the observation of remote objects and the collection of Electromagnetic radiation. Deep sky or Deep Sky Object (DSO for short which differs from Deep space, is a term used by amateur astronomers to describe mostly faint Astronomical objects outside Furthermore, almost all of the Messier objects are among the closest to our planet in their respective classes, which makes them heavily studied with professional class instruments that today can resolve very small and visually spectacular details in them. Professional astronomers still refer to objects by their Messier designation, and in amateur astronomy they are among the most frequently visited deep sky objects.

Many of the objects in the Messier catalog were discovered by his assistant Pierre Mechain. Pierre François André Méchain ( August 16, 1744 &ndash September 20, 1804) was a French Astronomer and surveyor

The Messier crater on the Moon and the asteroid 7359 Messier were named in his honor. Messier is a relatively young lunar Impact crater located on the Mare Fecunditatis. Asteroids, sometimes called Minor planets or planetoids', are bodies—primarily of the inner Solar System —that are smaller than planets but 7359 Messier (1996 BH is a Main-belt Asteroid discovered on January 16, 1996 by Klet at Klet

Footnotes

  1. ^ Maik Meyer. Catalog of comet discoveries

Sources

External links

See also

The Messier objects are a set of Astronomical objects first listed by French astronomer Charles Messier in his "Catalogue des Nébuleuses The Messier objects are a set of astronomical objects catalogued by Charles Messier in his "Catalogue des Nébuleuses et des Amas d'Étoiles" ("Catalogue of Nebulae A Messier marathon is an attempt usually organized by Amateur Astronomers to find as many Messier objects as possible during one night
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