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Snake Nebula (Barnard 72)


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Snake Nebula (へび星雲, 蛇星雲)
Dark Nebula (暗黒星雲)
Nb DN


別名 (Other names)
Barnard 72 (B72)

星座 (Constellation)
へびつかい座 (Oph) (Ophiuchus)


距離 (Distance)
650光年 (650 light-years)

Snake Nebula (Barnard 72) is a dark nebula located 650 light years from the Earth in the constellation Ophiuchus.

Snake Nebula (Barnard 72) : Picture

Snake in the Dark
Snake in the Dark
(C) NASA
Dark nebulae snake across a gorgeous expanse of stars in this telescopic view toward the pronounceable constellation Ophiuchus and the center of our Milky Way Galaxy. In fact, the twisting central shape seen here is well known as the Snake Nebula. It is also listed as Barnard 72 (B72), one of 182 dark markings of the sky cataloged in the early 20th century by astronomer E. E. Barnard. Unlike bright emission nebulae and star clusters, Barnard's nebulae are interstellar dark clouds of obscuring gas and dust. Their shapes are visible in cosmic silhouette because they lie in the foreground along the line of sight to rich star fields and glowing stellar nurseries near the plane of our Galaxy. Many of Barnard's dark nebulae are themselves likely sites of future star formation. Barnard 72 is about 650 light years away. With bluish star 44 Ophiuchi at bottom left, the intriguing star field spans nearly 2 degrees or almost 20 light-years at the estimated distance of the Snake Nebula.

Snake in the Dark
Snake in the Dark
(C) NASA
The Snake Nebula from CFHT The Snake Nebula in Ophiuchus
The Snake Nebula from CFHT
(C) NASA
The Snake Nebula in Ophiuchus
(C) NASA
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