Explanation: M7 is one of the most prominent open clusters of stars on the sky. The cluster, dominated by bright blue stars, can be seen with the naked eye in a dark sky in the tail of the constellation of the Scorpion (Scorpius). M7 contains about 100 stars in total, is about 200 million years old, spans 25 light-years across, and lies about 1000 light-years away. The above deep exposure was taken last month over several nights from Yalbraith, NSW, Australia. The M7 star cluster has been known since ancient times, being noted by Ptolemy in the year 130 AD. Also visible are a dark dust cloud and literally millions of unrelated stars towards the Galactic center.

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

Publikacii s klyuchevymi slovami: M 7 - open cluster - Rasseyannoe skoplenie - Skorpion Publikacii so slovami: M 7 - open cluster - Rasseyannoe skoplenie - Skorpion
Sm. takzhe: Pleyady: zvezdnoe skoplenie Sem' sester NGC 602: zvezdy protiv stolbov Temnaya bashnya v Skorpione NGC 7789: Roza Karoliny NGC 602: zvezdnoe skoplenie Ustrica Skoplenie 37 Dvoinoe skoplenie v Persee Vse publikacii na tu zhe temu >>