Inspired by questions about observing Shabbos in outer space, I've been wondering about Kiddush Levanah. Would someone living in space use similar opinions to determine when to sanctify the moon as someone seeking to determine when to observe Shabbos? I'm particularly curious about how someone living on the moon, itself would do Kiddush Levanah.

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    @DanF That is certainly an interesting question, but it is somewhat different from what I'm asking. I'm asking specifically about preforming Kiddush Levanah, itself and not inquiring about an alternative "Kiddush Ha'Aretz". I do, however see how these questions are closely related and that answers will likely rely on some of the same sources. – Ze'ev Feb 8 '17 at 20:01
  • More likely a dupe of judaism.stackexchange.com/q/65874/759 Note Kiddush Levana has nothing to do with times like Shabbat. It's a blessing said on seeing an waxing moon. – Double AA Feb 8 '17 at 20:20
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    @DoubleAA That's also a great question, but once again, not exactly what I'm asking here. That question pertains to saying Kiddush Levana for moons of other planets. I'm still talking about our moon in this question. – Ze'ev Feb 8 '17 at 20:23
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    @DoubleAA I also understand that Kiddush Levanah is unrelated to Shabbos. The connection I'm making is based on the fact that one never observes a waxing moon in space (or on the moon), just as one cannot observe a halachic sunset (to mark zmanim) in space. As one may rely on one's point of departure from the Earth to determine zmanim, I was wondering if one may use one's point of departure as a reference to determine when the moon is observed as waxing. – Ze'ev Feb 8 '17 at 20:42

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