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1 vote
1 answer
65 views

Moon's libration from Mathematica data

Wolfram Mathematica provides "TransitTime" option (for the Moon in particular). Knowing this time moment, you can get the position of the moon at upper culmination (for example, for each day ...
lesobrod's user avatar
  • 123
6 votes
1 answer
812 views

How to search SIMBAD using identifiers?

I'm trying to get some data about the moon from SIMBAD (specifically, radiation spectrum in certain wavelengths), and I encountered an unexpected problem: I can't find the Moon. In SIMBAD, I can ...
Yoav Zack's user avatar
  • 163
8 votes
1 answer
135 views

How open is China in sharing data from the Chang'e 4 mission?

It's really good to see that man (well, machine) has gone back to the moon again. Chang'e 4 is studying potential mantle material from the lunar depths and will be conducting radio astronomy in ...
user avatar
4 votes
3 answers
2k views

Observed lunar distance data?

Where can I find free/open data for the observed (not calculated/theoretical) distance between the Earth & Moon? I want to see the observed distance of the Moon, hour by hour.
Dingredient's user avatar
4 votes
1 answer
289 views

Why is the moon's motion more complicated than that of those planets?

I am of course not an expert on astronomy. But from the literature, I have the impression that the lunar motion is very complicated. It seems that Kepler can make sense of the motion of the planets ...
J.Bates's user avatar
  • 143