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- Newsgroups: sci.space
- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsi!pauln
- From: pauln@cbnewsi.cb.att.com (paul.h.nelson)
- Subject: Re: ROTATION OF THE MOON
- Organization: AT&T
- Date: Thu, 19 Nov 1992 18:55:10 GMT
- Message-ID: <1992Nov19.185510.15578@cbnewsi.cb.att.com>
- References: <10160@ncrwat.Waterloo.NCR.COM> <1992Nov18.163804.1213@sunspot.noao.edu>
- Lines: 7
-
- Since the moon is gradually receding from the earth, due to tidal effects,
- can we extrapolate backwards in time and postulate how close it has been
- to the earth and when?
-
- ALso, can we pick a lower bound earth orbit, where the moon would have broken
- up and fallen into the earth, and use that as an UPPER bound for the
- age of the earth-moon system?
-