What are facts about the galaxy?

Answer 1

1. An average glaxaie's speed is about 140 miles a second ! :]

2.Galaxies are classified by elliptical, spiral, and irregular.

3. Galaxies are a huge group of single stars, star clusters, star systems, dust and gas bound together by gravity.

4. Irregular galaxies are typically smaller than other types of galaxies.

5. A galaxies classification is determined by shape, color, size, or temperature.

Answer 2

the Milky Way is a barred spiral galaxy of type SBbc and has a total mass of around 10¹² Suns ("solar masses"). The Gallactic disc extends to about 15 kpc from the centre of the Galaxy, where a triaxial bulge of radius 3 kpc and mass 10¹⁰ solar masses contains a black hole with a mass of around 3 x 10⁶ solar masses. A comparitively diffuse halo of stars surrounds the disc extending to around 20 kpc from the Gallactic centre, and the visible Galaxy rests in a halo of dark matter whose extent is unknown but appears to reach as far as the nearest galaxy.
Galaxies are sprawling space systems composed of dust,gas, and countless stars. The number of galaxies cannot be counted--the observable universe alone may contain 100 billion. Some of these distant systems are similar to our own Milky Way galaxy, while others are quite different.
Well, there are more galaxys and the planets in each galaxys are asame