They showed that the Andromedanebula lay far outside our Milky Way Galaxy.
测量表明,仙女座星云远在我们的银河系之外。
2
For example, Messier object M1 is the CRAB NEBULA and M31 is the ANDROMEDA GALAXY.
例如,梅西耶天体m 1是蟹状星云,而M31是仙女座星系。
3
Many of the brightest deep sky objects also have "popular names" by which they're often referred to, such as "Andromeda Galaxy", "North America Nebula", "Blinking Planetary", and so on.