C76
NGC 6231
천체 데이터
- 카탈로그 지정명
- C76
- 유형
- OpenCluster
- 별자리
- Scorpius
- 등급
- 2.6
- 적경
- 16h 54m 20.2s
- 적위
- -41° 49' 58.8"
- 거리
- 5,900 광년
- 각크기
- 15
서베이 이미지
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C76 소개
설명
NGC 6231 is a bright, compact open cluster in Scorpius, about 5,900 light-years away. At magnitude 2.6 it is visible to the naked eye, and it forms the core of the much larger Scorpius OB1 association. The cluster contains numerous hot O- and B-type stars.
관측 팁
Stunning in binoculars and small telescopes. Located just north of the Scorpion's tail near Zeta Scorpii. A telescope at 40-80x reveals dozens of bright blue-white stars. Best in summer evenings from locations with a good southern horizon.
역사
Known since antiquity as a bright patch near the Scorpion's stinger. Giovanni Battista Hodierna first resolved it as a cluster before 1654. Sometimes called the Northern Jewel Box for its brightness and rich star field.
재미있는 사실
NGC 6231 is only about 3.2 million years old, one of the youngest clusters visible to the naked eye. Its O-type stars will burn through their fuel and explode as supernovae within the next few million years.
커뮤니티 사진 (1)
Credit: Lithopsian. License: CC BY 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026