C3
NGC 4236
천체 데이터
- 카탈로그 지정명
- C3
- 유형
- Galaxy
- 별자리
- Draco
- 등급
- 9.7
- 적경
- 12h 16m 42.0s
- 적위
- +69° 28' 01.2"
- 거리
- 7,000,000 광년
- 각크기
- 21
서베이 이미지
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C3 소개
설명
NGC 4236 is a barred spiral galaxy in Draco, about 11.7 million light-years away and a member of the M81 group. It is one of the largest galaxies in angular size (over 20 arcminutes long) but has very low surface brightness.
관측 팁
A difficult target due to extremely low surface brightness. A dark sky site is essential. Use a wide-field telescope at low power to detect this elongated smudge. Averted vision is necessary. Best viewed in spring evenings when Draco is well placed.
역사
Discovered by William Herschel on April 6, 1793. Its membership in the M81 galaxy group was confirmed through distance measurements.
재미있는 사실
NGC 4236 is one of the galaxies nearest to the Milky Way yet one of the hardest to observe because its light is spread over such a large area. Photographs reveal beautiful HII star-forming regions along its spiral arms.
커뮤니티 사진 (1)
Credit: Mattrsmith77. License: CC BY 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026