Andromeda Galaxy - Wikipedia
The Andromeda Galaxy is a barred spiral galaxy 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. Andromeda has a D 25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) [8] and is approximately 765 kpc (2.5 million light-years) from ...
Messier 31 (The Andromeda Galaxy) - Science@NASA
M31, also well-known as the Andromeda Galaxy, is the nearest major galaxy to our own, the Milky Way. Assembled from a total of 7,398 exposures taken over 411 individual pointings of the telescope, this image of our nearest major galactic neighbor, M31, is the largest Hubble mosaic to …
Andromeda Galaxy | Description, Location, Distance, & Facts
2024年12月11日 · 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.
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。
The Andromeda galaxy: All you need to know - EarthSky
2024年9月5日 · Excluding the Large and Small Magellanic Clouds, visible from Earth’s Southern Hemisphere, the Andromeda galaxy is the brightest external galaxy visible in our night sky. And, at 2.5 million...
Get to know the Andromeda Galaxy - Astronomy Magazine
2024年9月1日 · The famed Andromeda Galaxy, or M31, draws attention at public star parties not only because it is the nearest major member of the Local Group to our Milky Way, but also because most people are...
October’s Night Sky Notes: Catch Andromeda Rising!
2024年10月1日 · And so, the Andromeda Nebula became known as the Andromeda Galaxy. This illustration shows the location of the 43 quasars scientists used to probe Andromeda’s gaseous halo. These quasars—the very distant, brilliant cores of active galaxies powered by black holes—are scattered far behind the halo, allowing scientists to probe multiple regions.
Hubble’s High-Definition Panoramic View of the Andromeda Galaxy
2015年1月5日 · The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy (M31) is the sharpest large composite image ever taken of our galactic next-door neighbor. Though the galaxy is over 2 million light-years away, The Hubble Space Telescope is powerful enough to resolve individual ...
Andromeda Galaxy - NASA
2013年6月12日 · Andromeda, also known as Messier 31 (M31), is a spiral galaxy located about 2.5 million light years away. It is thought that the Milky Way and Andromeda will collide several billion years from now. The black holes located in both galaxies will then reside in the large, elliptical galaxy that results from this merger.
The Andromeda Galaxy | Images, Facts & Astrophotography Tips
Andromeda was originally thought to be a nebula and was even referred to as the “Great Andromeda Nebula” in 1899. Other than the Large and Small Magellanic clouds (visible from the southern hemisphere), the Andromeda Galaxy is the …