Quote:
Originally Posted by Zeke
I didn't check but how long were the astronauts on the surface? They must have seen the sun move as we see it, but just only. A moon day is 30 days long. I guess they really were more or less in the same shadow for the duration.
|
If we define a "day" as the amount of time it takes the sun to return to the same point on the moon's horizon after the moon completes a new revolution around Earth, then every lunar day lasts for 29.5 Earth days. This means that — on every orbit — the moon gets a little over two weeks' worth of daylight followed by an equal amount of nighttime. In other words, almost any given spot on the moon sees two weeks of continuous daylight followed by two weeks of continuous darkness.