(the brightest region in Orion Nebula)

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• Orion Nebula — The entire Orion Nebula in visible light. Credit: NASA/ESA Observation data: J2000 epoch …   Wikipedia

• Orion Nebula — noun A diffuse nebula visible in the night sky below Orions Belt; it is approximately 40 light years across. It is one of the brightest nebulae visible to the naked eye and is the closest region of stellar formation to Earth. Syn: M42, NGC …   Wiktionary

• nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula …   Universalium

• Orion (constellation) — For other uses, see Orion (disambiguation). Orion Constellation List of stars in Orion Abbreviation Ori Genitive Orionis …   Wikipedia

• Orion variable — An Orion variable is a variable star which exhibits irregular and eruptive variations in its luminosity and is typically associated with diffuse nebulae. It is thought that these are young stars which will later become regular, non variable stars …   Wikipedia

• H II region — An H II region (also known as emission nebula) is a cloud of glowing gas and plasma, sometimes several hundred light years across, in which star formation is taking place. Young, hot, blue stars which have formed from the gas emit copious amounts …   Wikipedia

• Carina Nebula — An image of NGC 3372 taken with an amateur telescope Observation data: J2000.0 epoch Type Emission …   Wikipedia

• Stars and planetary systems in fiction — The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars …   Wikipedia

• Circumpolar star — The northern circumpolar stars revolving around the north celestial pole. Note that Polaris, the bright star near the center, is almost stationary. Polaris is circumpolar and can be seen at all times of the year. (The graphic shows how the… …   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

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