25 Amazing and Interesting Facts about Asteroids | Amazing Facts 4U
- The Andromeda is a spiral galaxy which is located at a distance of 2.5 million light years from our galaxy Milky Way.
- The Andromedia galaxy is also known as Messier 31 or in short, M31.
- In the galaxy cluster known as the Local Group, Andromeda is the largest galaxy. The Local Group is a cluster of 54 galaxies including Milky Way.
- Scientists estimate that there are 1 trillion stars in the Andromedia galaxy.
- This galaxy appears in the area of Andromeda constellation and hence it is named as Andromeda galaxy. Andromeda was the name of mythical Greek princess.
- Since it is the nearest spiral galaxy to us, astronomers use the Andromeda Galaxy to understand the origin and evolution of such galaxies.
- The apparent magnitude of brightness of this spiral galaxy is 3.4, which makes it visible to naked eyes from earth on a clear moonless night.
- The Andromeda Galaxy is the most distant object you can spot with the naked eye in the Northern Hemisphere.
- The diameter of Andromedia galaxy is estimated to be 260,000 light years.
- The estimated mass of Andromeda is 400 billion solar masses which is less than Milky Way which is more dense.
- The Andromeda is headed towards Milky Way at a speed of 110 kilometers per second and it will clash with Milky Way in about 3.75 billion years.
- Andromeda has a double nucleus. At the very center or the core of the galaxy is a massive cluster of stars. But at the core, there is also at least one super massive black hole. Apart from the super massive black hole at the center of Andromeda, there are 26 more black holes inside this galaxy.
- Andromeda’s spiral arms are distorted. This distortion is caused by the gravitational tug of the companions M32 and M110.
- Once the Milky Way and the Andromeda galaxy collide together, scientists expect that the resulting entity will be a gigantic elliptical galaxy.
- Radio emission from the Andromeda Galaxy was first detected in 1950.
By Amazing Facts 4U Team