Star A is brighter, since brightness increases as the number decreases.
Our solar system is heliocentric, which means everything revolves around the sun. Geocentric would mean everything revolved around the earth.
I think that you got it right that is what we did in science class to test that out :)
Answer:
b) the Earth's orbit around the sun
Explanation:
plz mark me as brainlist
hope it HELPS..!!