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Questions regarding Earth's only natural satellite. For questions about the natural satellites of other planets, use the tag [natural-satellite].

1 vote

Meteorites bring water

It would have to be a big meteorite to supply the quantaties we have here and therefore support the nuclear break down theory.ie- hydrogen to helium etc. In respect of delivery by cosmic objects, the …
James K's user avatar
  • 129k
-1 votes

What range of exit pupils work for observing the full moon?

Since the magnification is determined by focal length of the objective/focal length of eyepiece it is difficult to have an eye-piece with the same f ratio as the objective. Assuming pupil aprature 0.2 …
Colin Shorey's user avatar
0 votes
2 answers
343 views

Do we have knowledge of the geology of the moon?

With reference to the Ebb and Flow lunar satellites, was there any data about its geology? Is there a central core, or is it homogenous?
1 vote

Is it safe to view moon at daytime through telescope

I have found a good time to view the moon is before the sky is fully light,say 8am.The pupil of the eye will no be fully dilated and better eye/lens will give improved resolution(f ratio).In addition …
Colin Shorey's user avatar
0 votes

Tide on the Moon

There would be a tide of approximately 28 days due to centrifuge effect,the water being free flowing,about the mid point centre of gravity of the 2 masses. Our tides are monthly but appear daily due t …
Colin Shorey's user avatar