What does it mean when an emission line of helium from a galaxy is shifted toward red?(1 point)
The galaxy contains a small percent of hydrogen.
The galaxy contains a large percent of hydrogen.>>>
The galaxy is moving away from the viewer.
The galaxy is moving toward the viewer.
5 answers
The galaxy is moving away from the viewer.
yo thanks that was really fast!!
That is known as the Doppler effect.
woah really! i have heard of the name Doppler effect but i never knew it was that
1) A
2) B
3) C
4) C
5) C, D
2) B
3) C
4) C
5) C, D
1 answer