Astronomical catalog

An astronomical catalog or catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery. Astronomical catalogs are usually the result of an astronomical survey of some kind.

Contents 1 Catalogs of historical importance 2 Widely used astronomical catalogs 3 See also 4 References 5 External links

Catalogs of historical importance

• Azophi's Book of Fixed Stars, published in 964, describes more than a thousand stars in detail and provides the first descriptions of Andromeda Galaxy^[1] and the Large Magellanic Cloud.^[2][3]
• Johann Bayer's Uranometria star atlas was published in 1603 with over 1200 stars. Names are made of Greek letters combined with constellation name, for example Alpha Centauri.
• John Flamsteed's Historia coelestis Britannica star atlas, published in 1725, lists stars using 2 digit numbers combined with constellation, for example 61 Cygni.
• Messier Catalog - Nebulae and Star Clusters was published in 1781, with objects M1 — M110.
• New General Catalogue compiled in the 1880s, lists objects NGC 0001 — NGC 7840.
• Henry Draper Catalog published between 1918 and 1924, lists more than 225,000 of the brightest stars, named using HD followed by a 6-digit number.
• Sir Patrick Moore compiled the Caldwell catalogue in 1995 to complement the Messier catalog, listing 109 bright star clusters, nebulae, and galaxies named C1 to C109.
• 2MASS is the most ambitious project to map the night sky to date. Goals included first detection of brown dwarfs, an extensive survey of low mass stars, and cataloguing of all detected stars and galaxies. More than 300 million point sources and 1 million extended sources were catalogued.

Widely used astronomical catalogs

• Hipparcos Catalogue - containing data for about 118,000 stars.
• Tycho-2 Catalogue - containing data for about 2,500,000 stars.
• USNO B1.0 (1,042,618,261 stars/galaxies)
• 6th Orbit Catalog (Orbital elements for double/multiple star systems)
• Washington Double Star Catalog
• Yale Bright Star Catalog

See also

• List of astronomical catalogues
• Star catalogue discusses various types in more detail
• Astrograph - a type of instrument used to produce astronomical catalogues.

References

External links

• Most astronomical catalogues can be queried electronically here
• Clickable Caldwell Object table
• Clickable Messier Object table

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