Andromeda Galaxy
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy located about 2.537 million light-years from Earth in the constellation of Andromeda. It is the nearest spiral galaxy to the Milky Way, our own galaxy, and is the largest galaxy in the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and about 54 other smaller galaxies.
Characteristics of the Andromeda Galaxy
The Andromeda Galaxy is a massive, spiral-shaped galaxy with an estimated mass of around 1.76 trillion solar masses. It has a diameter of about 220,000 light-years, making it the largest galaxy in the Local Group. The galaxy is home to approximately 1 trillion stars, more than twice the number of stars in the Milky Way.
Study Guide
- Location: Where is the Andromeda Galaxy located?
- Size and Mass: What is the estimated size and mass of the Andromeda Galaxy?
- Number of Stars: How many stars are estimated to be in the Andromeda Galaxy?
The Andromeda Galaxy is located in the constellation of Andromeda, approximately 2.537 million light-years from Earth.
The Andromeda Galaxy has a diameter of about 220,000 light-years and an estimated mass of around 1.76 trillion solar masses.
The Andromeda Galaxy is estimated to be home to approximately 1 trillion stars, more than twice the number of stars in the Milky Way.
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