1 point 2. Why does the sun and the moon appear to be the same size from Earth?
The sun is 400x wider than the moon, but the moon is also 400x closer to the Earth
than the sun
The moon is bigger than the sun.
The sun changes size throughout Earth's orbit.
They are the same size.

The sun is 400x wider than the moon, but the moon is also 400x closer to the Earth

Explanation:

Although the the sun is roughly 400x wider than the moon, the moon is aproximately 400x closer to the Earth, and that is why seen from earth, sun and the moon appear to be the same size.

So answer is the sun is 400x wider than the moon, but the moon is also 400x closer to the Earth.

EXTRA:

There is a fenomenom called blood moon, when that happens, the moon appears to be bigger then normal (and it has a red glow about it).

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !