C68
NGC 6729
천체 데이터
- 카탈로그 지정명
- C68
- 유형
- DiffuseNebula
- 별자리
- Corona Australis
- 등급
- 10.0
- 적경
- 19h 08m 01.4s
- 적위
- -36° 57' 07.2"
- 거리
- 400 광년
- 각크기
- 1
서베이 이미지
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C68 소개
설명
NGC 6729 is a reflection and emission nebula in Corona Australis, about 424 light-years away. It is associated with the variable star R Coronae Australis and is part of a small but active star-forming complex that includes the Coronet cluster.
관측 팁
A small, fan-shaped nebula visible in a 6-inch telescope. It varies in brightness along with R CrA. Located near the globular cluster NGC 6723 and the dark nebula complex. Best from southern locations in summer.
역사
Discovered by Johann Friedrich Julius Schmidt in 1861. Like Hubble's Variable Nebula (C46), NGC 6729 changes in brightness and shape as the illuminating star R CrA varies.
재미있는 사실
The Corona Australis star-forming region containing NGC 6729 is one of the nearest active star-formation areas to Earth, at only 424 light-years. Several T Tauri protostars are embedded in the associated molecular cloud.
커뮤니티 사진 (1)
Credit: ESO. License: CC BY 3.0. (Wikimedia Commons)
Skybred Mar 2, 2026