I am trying to determine the lunar surface near or far side daytime illumination levels in Lux or foot-candles but there seems to be no directly measured values available. I did find this information on the levels as measured from earth, so it should be possible to work backwards to arrive at those values I presume. My math is very rusty indeed though, so thought I'd put the question to some experts. How bright is moonlight? https://academic.oup.com/astrogeo/article/58/1/1.31/2938119

  • $\begingroup$ This is certainly on-topic here but it is possible that it would receive more helpful results in Space Exploration SE where there are many users familliar with how to find measured data on the Moon. $\endgroup$
    – uhoh
    Apr 18, 2020 at 0:42
  • 1
    $\begingroup$ I see you've now done so, but I realize that I should have said something about deleting this here first. In Stack Exchange cross-posting the same question in multiple sites is strongly discouraged, one reason is that it leads to answer fragmentation. It's a good idea to delete one of these instances. Thanks! $\endgroup$
    – uhoh
    Apr 18, 2020 at 3:34


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