What are the arms of a spiral galaxy?

Answer 1

They are objects that are confined to the arms of a galaxy, i.e. objects that only exist within the spiral arms, and are not found (except very rarely) outside of spiral arms. Examples of tracers are structures to do with star formation, like for example open star clusters, giant molecular clouds or supernova remnants.

Answer 2

Spiral arms are 'density waves' of stars that rotate around the galaxy. The stars themselves mostly don't travel at the same speed as the spirals, what we are observing is a wave phenomena not that different from at a football game.

Answer 3

The galaxy is made up of billions of stars.

Some are gathered in the center bulge. The rest make up the disk of the galaxy which is about 200,000 lys in diameter.

Picture Saturn as the bulge and Saturn's rings as the disk of our galaxy (But BIGGER!)

Answer 4

1). the sun

2). the moon

3). the earth

Answer 5

The milky way galaxy has 3 components.The disk containing the spiral arm,the halo,and the nucleus or central bulge

Answer 6

• Galactic Core
• Halo
• Spiral Arms

Answer 7

The PartsOf galaxy Is Natural Gases Nd parts OfChemical stars

Answer 8

Basically the same as the rest of the galaxy: stars, dust, gas, etc.

Answer 9

Im pretty sure its your galaxy too.

Answer 10

spiral arms