circumstellar matter

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• Circumstellar disk — A circumstellar disk is a torus, pancake or ring shaped accumulation of matter composed of gas, dust, planetesimals, asteroids or collision fragments in orbit around a star. Around the youngest stars, they are the reservoirs of material out of… …   Wikipedia

• Gamma Cassiopeiae — Starbox begin name=Gamma Cassiopeiae Starbox observe epoch=J2000 ra=00h 56m 42.5s dec=+60° 43 prime; 00 Prime; appmag v=2.15 constell=Cassiopeia Starbox character class=B0.5 IVe b v= 0.15 u b= 1.08 variable=Gamma Cas Starbox astrometry radial v=… …   Wikipedia

• Astronomical object — Celestial object and Celestial body redirect here. For other uses, see Celestial (disambiguation). This article is about naturally occurring objects. For artificial objects, see Satellite. Astronomical objects or celestial objects are naturally… …   Wikipedia

• Symbiotic variable star — A Symbiotic Variable star is a variable binary star system in which one star has expanded its outer envelope and is shedding mass quickly, and another hot star (often a white dwarf) is ionizing the gas [… …   Wikipedia

• Cygnus X-1 — For other uses, see Cygnus X 1 (disambiguation). HDE 226868 HDE 226868 (not shown) is located next to the star η (lower center) in this map of constellation Cygnus …   Wikipedia

• Ronald A. Parise — Infobox Astronaut name =Ronald Anthony Parise caption =Parise is in the center type =NASA Payload Specialist nationality =American date birth =May 24 1951 place birth =Warren, Ohio date death =May 9 2008 place death =Silver Spring, Maryland… …   Wikipedia

• Sigma Draconis — Starbox begin name=Sigma Draconis Starbox observe epoch=J2000 constell=Draco ra=RA|19|32|21.5908cite web url=http://simbad.u strasbg.fr/simbad/sim id?Ident=NSV%2012176 protocol=html title=SIMBAD Query Result: NSV 12176 Variable Star… …   Wikipedia

• meteorite — meteoritic /mee tee euh rit ik/, meteoritical, meteorital /mee tee euh ruyt l/, adj. /mee tee euh ruyt /, n. 1. a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid. 2. a meteoroid. [1815 25; METEOR + ITE1] * * …   Universalium

• Planet — This article is about the astronomical object. For other uses, see Planet (disambiguation) …   Wikipedia

• Beta Pictoris — Starbox begin name=Beta PictorisStarbox image caption=Map of the Pictor constellation showing the position of Beta Pictoris.Starbox observe epoch=J2000 ra=05h 47m 17.1scite web|url=http://simbad.u strasbg.fr/simbad/sim id?protocol=html… …   Wikipedia

• Cosmic dust — Space dust redirects here. For other uses, see Space dust (disambiguation). Porous chondrite interplanetary dust particle. Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 µm in size. Cosmic dust… …   Wikipedia