C47
NGC 6934
천체 데이터
- 카탈로그 지정명
- C47
- 유형
- GlobularCluster
- 별자리
- Delphinus
- 등급
- 8.9
- 적경
- 20h 34m 11.3s
- 적위
- +07° 24' 14.4"
- 거리
- 52,000 광년
- 각크기
- 6
서베이 이미지
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C47 소개
설명
NGC 6934 is a globular cluster in Delphinus, about 50,000 light-years away. It is a moderately concentrated cluster spanning about 5.9 arcminutes with an integrated magnitude of 8.9.
관측 팁
Visible as a small, fuzzy ball in a 4-inch telescope. An 8-inch scope begins to resolve the outer edges into individual stars at 150x+. Located in Delphinus, best observed in summer and autumn evenings.
역사
Discovered by William Herschel on September 24, 1785. It is one of two Caldwell globular clusters in the small constellation Delphinus (along with C42).
재미있는 사실
NGC 6934 contains a relatively high number of RR Lyrae variable stars, which are used as standard candles for measuring distances in astronomy.
커뮤니티 사진 (1)
Credit: en:NASA, en:STScI, en:WikiSky. License: Public domain. (Wikimedia Commons)
Skybred Mar 2, 2026