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- Path: sparky!uunet!digex.com!mheney
- From: mheney@access.digex.com (Michael K. Heney)
- Newsgroups: alt.sci.planetary
- Subject: Re: I wonder...
- Date: 23 Dec 1992 12:59:00 GMT
- Organization: Express Access Online Communications, Greenbelt, MD USA
- Lines: 23
- Message-ID: <1h9nqkINNi5k@mirror.digex.com>
- References: <karlw.2w5t@terapin.com>
- NNTP-Posting-Host: access.digex.com
-
- In article <karlw.2w5t@terapin.com> karlw@terapin.com (Karl Williams) writes:
- >Question still comes up in my mind , is it possible for a moon to have moon?
- >well I think that if a slow passing asteroid was pulled into a orbit around a
- >moon it could be called a moon right?
-
- The trivial answer to your question is "Yes". The question is, how long
- will this orbit remain ralatively stable?
-
- Luna could posess satellites; however, because of mascons and the perturbing
- influence of the Earth, the sun, Jupiter, etc, the orbit would deteriorate
- and eventually impact the moon, or wander off away from the moon and into
- Earth orbit.
-
- The biggest problem with an object orbiting a secondary (like Luna) is the
- perturbing influence of the primary (Earth). I suspect that the greater
- the distance and the *larger* the mass ratio between the primary and secondary,
- the easier it would be to have a body in a stable orbit about the secondary.
- But being a mere systems guru, and not an orbital mechanist, I'm not
- positive.
- --
- Mike Heney | Senior Systems Analyst and | Reach for the
- mheney@access.digex.com | Space Activist / Entrepreneur | Stars, eh?
- Kensington, MD (near DC) | * Will Work for Money * |
-