例句與造句

1. On 18 December 2003 he discovered a nova in the Andromeda Galaxy ( Messier 31 ).
2. For instance, the Andromeda Galaxy is Messier 31 and the Whirlpool Galaxy is Messier 51.
3. One of its member'stars', formerly known as n And, is Messier 31-better known as the Andromeda Galaxy.
4. Astronomers knew that a crucial clue lay in the nature of what they called the spiral nebula, of which a prominent example was an object called Messier 31 in the constellation Andromeda.
5. The most famous deep-sky object in Andromeda is the spiral galaxy cataloged as Messier 31 ( M31 ) or NGC 224 but known colloquially as the Andromeda Galaxy for the constellation.
6. It's difficult to find messier 31 in a sentence. 用messier 31造句挺難的
7. In 1925, the astronomer Edwin Hubble set that question to rest in a paper in Ap . J . titled " A Spiral Nebula as a Stellar System, Messier 31 ."