open star clusters

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• Open cluster — Galactic cluster redirects here. See also galaxy groups and clusters NGC 265, an open star cluster in the Small Magellanic Cloud An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and… …   Wikipedia

• star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

• Open cluster family — In astronomy, an open cluster family is a group of approximately coeval (age range ∼30 Myr) young open star clusters located in a relatively small region of the Galactic disk (radius ∼250 pc). Introduction Open star clusters do not form in… …   Wikipedia

• Star system — This article is about stars in outer space. For the Hollywood star system, see Star system (film). For a system of planets around a star, see Planetary system. A star system or stellar system is a small number of stars which orbit each other,[1]… …   Wikipedia

• Star cluster — Star clusters are groups of stars which are gravitationally bound. Two distinct types of star cluster can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars, while open clusters generally contain less… …   Wikipedia

• star cluster — Astron. a number of stars of common origin held together as a group by gravitational attraction. Cf. globular cluster, open cluster, stellar association. * * * ▪ astronomy Introduction  either of two general types of stellar assemblages held… …   Universalium

• Star — For other uses, see Star (disambiguation) …   Wikipedia

• Open cluster remnant — In astronomy, an open cluster remnant (OCR) is the final stage in the evolution of an open star cluster. Contents 1 Theory 2 Observations 3 Simulations 4 References …   Wikipedia

• A Catalogue of Nebulae and Clusters of Stars in the Southern Hemisphere observed in New South Wales — Ein astronomischer Katalog ist eine Liste von astronomischen Objekten, die aufgrund gemeinsamer Eigenschaften, wie Morphologie oder Entdeckungsmethode gruppiert werden. Astronomische Kataloge sind üblicherweise das Ergebnis einer astronomischen… …   Deutsch Wikipedia

• Multiple star — Artist s impression of the orbits of HD 188753, a triple star system A multiple star consists of three or more stars which appear from the Earth to be close to one another in the sky. This may result from the stars being physically close and… …   Wikipedia

• open cluster — Astron. a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies. Also, galactic cluster.… …   Universalium