Explanation: What slithers overhead? The dark winding lanes visible in part of the constellation of Ophiuchus belong to the Snake Nebula. Also known as Barnard 72, the Snake Nebula is a series of dark absorption clouds made up of molecular gas and interstellar dust. Interstellar dust grains - composed predominantly of carbon - absorb visible starlight and reradiate much of it in the infrared. This absorption causes stars behind the clouds to be obscured from view, hence the appearance of starless voids on the sky. Molecular clouds like the Snake Nebula are places where new stars are likely to form. The Snake Nebula, pictured above, lies about 650 light-years away and spans the angular width of a full moon.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Snake Nebula - Barnard 72 - absorption nebula - temnaya tumannost' - tumannost' Zmeya Publikacii so slovami: Snake Nebula - Barnard 72 - absorption nebula - temnaya tumannost' - tumannost' Zmeya
Sm. takzhe: LDN 43: tumannost' Kosmicheskaya Letuchaya Mysh' Temnaya bashnya v Skorpione Temnye tumannosti v Hameleone Tumannost' "Temnaya shtuchka" LBN 86: tumannost' Skat-orlyak NGC 4372 i tumannost' Temnaya shtuchka Temnye tumannosti i zvezdoobrazovanie v Tel'ce Vse publikacii na tu zhe temu >>