Basic Astronomy

Our galaxy | Milky way

Milky way is our home galaxy. It is a normal spiral galaxy.

Size of milky way is about 120,000 light year. There is over 200 billion stars in the galaxy.

Milky way
Edge on panaromic view of Milkyway.

As most other galaxies, a giant super massive black hole is sitting in the center of Milky way. The name of the center black hole is Sagittarius A*.

Milky way is a middle weight galaxy. The largest known galaxy IC 1101 has over 100 trillion stars and other big galaxies can have more than a trillion stars.

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