Posted: Jun 13, 2012 4:11 pm
campermon wrote:
Not sure about the moon been 30% brighter.
edit - the same link also says that it's about 30% brighter.
Depends what is meant by 'brighter', I suppose.
Looking through a telescope of fixed magnification at a small part of it, the 'brightness' will be unchanged, since that doesn't vary with observer distance, but since there is more overall angular area the 'total light output' will be larger in proportion to the increased area.