例句與造句

1. Messier 92 is located around above the galactic plane and from the Galactic Center.
2. The heliocentric distance of Messier 92 is.
3. Among the Milky Way population of globular clusters, Messier 92 is among the brighter clusters in terms of absolute magnitude.
4. Characteristic of other globulars, Messier 92 has a very low abundance of elements other than hydrogen and helium; what astronomers term its metallicity.
5. It's difficult to find messier 92 in a sentence. 用messier 92造句挺難的