Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
Explanation:
Answer The gravity and the sun
Have a good day
Answer:
Probably we should call for help meanwhile you help him for some time till they arrive
<em><u>Hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u /></em><em><u>!</u></em><em><u>!</u></em>
Answer: Permeable
Explanation: In the picture you can see that only the red ones can pass through.
