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C98

NGC 4609

산개성단 우수 (68/100)
C98 OpenCluster Crux 관측 가능 난이도 1 Naked eye / Binoculars - Wide field preferred
Credit: Roberto Mura. License: CC BY-SA 3.0. (Wikimedia Commons)
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특성

등급 6.9
각크기 5.4′
거리 4200 ly
Open Cluster [Distance: 4200 ly]

위치 & 식별자

RA 12h 42m 17.8s
Dec -62° 59' 49.2"
별자리 Crux
카탈로그 C98

가시성

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C98 소개

설명

NGC 4609 is a small open cluster in Crux, about 4,200 light-years away. It contains about 40 stars within 5 arcminutes and lies just northwest of the Coalsack Nebula (C99), partially projected against the dark cloud.

관측 팁

A compact, moderately rich cluster visible in a 4-inch telescope. Its proximity to the Coalsack Nebula creates a striking contrast between the bright cluster and the dark background. Best from southern latitudes in autumn and winter.

역사

Discovered by James Dunlop in 1826 from Australia. Its position against the Coalsack makes it a popular target when observing the famous dark nebula.

재미있는 사실

NGC 4609 appears to overlap with the Coalsack Nebula, but the cluster lies far beyond the dark cloud. The juxtaposition creates one of the finest examples of a bright cluster seen against a conspicuously dark background.

커뮤니티 사진 (1)

Credit: Roberto Mura. License: CC BY-SA 3.0. (Wikimedia Commons)

Credit: Roberto Mura. License: CC BY-SA 3.0. (Wikimedia Commons)

Skybred Mar 2, 2026