- Andromeda Galaxy - Wikipedia
The Andromeda Galaxy is a barred spiral galaxy [c] and is the nearest major galaxy to the Milky Way It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224
- 仙女星系_百度百科
仙女星系（英语:Andromeda Galaxy;M31;NGC 224；曾被称为仙女座大星云），位于仙女座方位的拥有巨大盘状结构的旋涡星系，梅西耶星表编号为M31，星云星团新总表编号位NGC 224，直径22万光年，距离地球有254万光年，是距银河系最近的大星系。
- Andromeda Galaxy | Description, Location, Distance, Facts - Britannica
Andromeda Galaxy, great spiral galaxy in the constellation Andromeda, the nearest large galaxy It is one of the few visible to the unaided eye, appearing as a milky blur The Andromeda Galaxy is located about 2,480,000 light-years from Earth, and its diameter is approximately 200,000 light-years
- Messier 31 (The Andromeda Galaxy) - NASA Science
Messier 31 M31, also well-known as the Andromeda Galaxy, is the nearest major galaxy to our own, the Milky Way
- The Andromeda galaxy: All you need to know - EarthSky
The Andromeda galaxy is the largest galaxy of the Local Group, which, in addition to the Milky Way, also contains the Triangulum galaxy and about 50 other smaller galaxies
- Andromeda Galaxy: Facts about our closest galactic neighbor
The Andromeda galaxy is the most distant object in the sky that you can see with your unaided eye It's also on a collision course with our Milky Way
- Sharpest ever view of the Andromeda Galaxy - ESA Hubble
This image, captured with the NASA ESA Hubble Space Telescope, is the largest and sharpest image ever taken of the Andromeda galaxy — otherwise known as M31 This is a cropped version of the full image and has 1 5 billion pixels
- 仙女座星系 - 维基百科，自由的百科全书
仙女座星系 （英語： Andromeda Galaxy，國際音標： ˌanˈdrɒmədə ，也稱 梅西耶31 、星表编号为 M31 和 NGC 224，在舊文獻中常常被稱為 仙女座大星雲，中国古代称为 奎宿增廿一）是一個 螺旋星系，距離地球約250萬 光年，是除 麦哲伦云 （银河系的伴星系）以外最近
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