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C8

NGC 559

산개성단 양호 (53/100)
C8 OpenCluster Cassiopeia 관측 가능 난이도 1 Naked eye / Binoculars - Wide field preferred
Credit: Meli thev. License: CC BY-SA 4.0. (Wikimedia Commons)
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특성

등급 9.5
각크기 9.0′
거리 3700 ly
Open Cluster [Distance: 3700 ly]

위치 & 식별자

RA 01h 35m 54.0s
Dec +63° 17' 60.0"
별자리 Cassiopeia
카탈로그 C8

가시성

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C8 소개

설명

NGC 559 is a moderately rich open cluster in Cassiopeia, about 3,700 light-years away. It contains roughly 100 stars spread across 4 arcminutes, with the brightest members at about magnitude 10.

관측 팁

Requires at least a 4-inch telescope to resolve. Located in the rich Milky Way star fields of Cassiopeia. Medium magnification (80-120x) works best. Circumpolar from northern mid-latitudes, best placed in autumn evenings.

역사

Discovered by William Herschel on November 9, 1787. It is one of many open clusters Herschel cataloged in the star-rich region of Cassiopeia.

재미있는 사실

NGC 559 is estimated to be about 200 million years old, making it a middle-aged open cluster. Studies have identified several red giant stars among its members.

커뮤니티 사진 (1)

Credit: Meli thev. License: CC BY-SA 4.0. (Wikimedia Commons)

Credit: Meli thev. License: CC BY-SA 4.0. (Wikimedia Commons)

Skybred Mar 2, 2026