Hubble
- 글 2,189
- 업데이트 한 달 전
The Crab Nebula is also classified as “Messier 1” – the first object in the Messier catalog, a list of cosmic objects compiled by astronomer Charles Messier.
In fact, some astronomers will even attempt a #MessierMarathon: a challenge to find all the catalog’s objects in a night!
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