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出典:Wikipedia
出典:『Wikipedia』 (2011/05/12 23:42 UTC 版)
The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus. At an estimated distance of 131 ± 3 parsecs, this cloud is one of the closest star-forming regions to the Solar System.
Rho Ophiuchi cloud complex