C16
NGC 7243
천체 데이터
- 카탈로그 지정명
- C16
- 유형
- OpenCluster
- 별자리
- Lacerta
- 등급
- 6.4
- 적경
- 22h 15m 00.0s
- 적위
- +49° 53' 60.0"
- 거리
- 2,500 광년
- 각크기
- 21
서베이 이미지
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C16 소개
설명
NGC 7243 is an open cluster in Lacerta, about 2,800 light-years away. It contains around 40 stars spread across 21 arcminutes, with a handful of brighter members at magnitude 8-9 forming distinctive chains and patterns.
관측 팁
A loose, scattered cluster best seen in binoculars or a wide-field telescope at low power. The brightest stars are easy to resolve. Located in a relatively sparse part of the Milky Way. Best observed in autumn evenings.
역사
Discovered by William Herschel in 1788. One of the less famous Herschel discoveries, but a pleasant target for sweeping the autumn Milky Way.
재미있는 사실
NGC 7243 is estimated to be about 100 million years old. Its sparse appearance suggests it is gradually dispersing into the general stellar population of the Milky Way.
커뮤니티 사진 (1)
Credit: Egres73. License: CC BY-SA 3.0. (Wikimedia Commons)
Skybred Mar 2, 2026