full moon
full moon
full moon
Circle, semi-circle, cresent
the moon
The direction is is lit from. When the Moon is lit (by the Sun) from straight on it appears full, when it is lit from behind it appears new, and when it is lit from the side it looks like a semi-circle.
A Full Moon
full moon
full moon
Waxing crescent is the phase that follows the new moon when it appears as a small outer portion of a circle.
Waxing crescent is the phase that follows the new moon when it appears as a small outer portion of a circle.
Waxing crescent is the phase that follows the new moon when it appears as a small outer portion of a circle.
Circle, semi-circle, cresent
the moon
dark side of the moon
The direction is is lit from. When the Moon is lit (by the Sun) from straight on it appears full, when it is lit from behind it appears new, and when it is lit from the side it looks like a semi-circle.
The earth reflectsAnswer:The Earth was found out to be spherical because it always casts a shadow (during eclipses of the Moon) that was either circular or portion of a circle (partial eclipse). There's only one solid shape that always appears to be circular, regardless of view point, and that's a sphere.I'm not sure about the Moon, but I assume that it was pretty much the same process - it always appears as a circle or part of a circle.
waxing is when it's growing, waning is when it's shrinking