Explanation: This pretty starfield spans about three full moons (1.5 degrees) across the heroic northern constellation of Perseus. It holds the famous pair of open star clusters, h and Chi Persei. Also cataloged as NGC 869 (top) and NGC 884, both clusters are about 7,000 light-years away and contain stars much younger and hotter than the Sun. Separated by only a few hundred light-years, the clusters are both 13 million years young based on the ages of their individual stars, evidence that they were likely a product of the same star-forming region. Always a rewarding sight in binoculars, the Double Cluster is even visible to the unaided eye from dark locations.

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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: open cluster - Rasseyannoe skoplenie Publikacii so slovami: open cluster - Rasseyannoe skoplenie
Sm. takzhe: Pleyady: zvezdnoe skoplenie Sem' sester NGC 602: zvezdy protiv stolbov NGC 7789: Roza Karoliny NGC 602: zvezdnoe skoplenie Ustrica Skoplenie 37 Dvoinoe zvezdnoe skoplenie v Persee NGC 7380: tumannost' Koldun Vse publikacii na tu zhe temu >>