Responses
The galaxy contains a large percent of hydrogen.
The galaxy contains a large percent of hydrogen.
The galaxy is moving toward the viewer.
The galaxy is moving toward the viewer.
The galaxy is moving away from the viewer.
The galaxy is moving away from the viewer.
The galaxy contains a small percent of hydrogen.
1 answer
When an emission line of helium from a galaxy is shifted toward red, it means that:
The galaxy is moving away from the viewer.
This phenomenon is known as redshift, which occurs when light emitted from an object in space is stretched to longer wavelengths as the object moves away.
1 answer
5 answers
7 answers
1 answer