Re: Lunar Geosynch orbit question !

From: Jim King (jim@jimking.net)
Date: Wed Jun 27 2001 - 13:57:01 PDT

  • Next message: Rick Baldridge: "Re: Lunar Geosynch orbit question !"

    Since the Moon always keeps the same face towards the Earth wouldn't a
    "lunasynch" sat be at the L2 Earth-Moon Lagrange point?  L2 is an unstable
    orbit, so sort of propulsion would be required to stay there.  I wonder if
    it would be cheaper/easier in the long run to put the telescope on the
    Moon's surface?
    
    Nice explanation of Lagrange points:
    http://map.gsfc.nasa.gov/m_mm/ob_techorbit1.html
    
    Anybody know the distance from the Moon of the Earth-Moon L2?  Would a sat
    Earth-Moon L2 ever be visible from the Earth?
    
    Jim
    
    ----- Original Message -----
    From: "Musson Bruce E" <bruce_musson@dofasco.ca>
    To: <Seesat-L@blackadder.lmsal.com>
    Sent: Wednesday, June 27, 2001 10:16 AM
    Subject: Lunar Geosynch orbit question !
    
    
    > Can a satellite be put into Geosynchronous orbit around the Moon, or is
    the
    > Earth's gravity just too much of an influence.
    > My non-professional gut feeling says, "No problem"... and what I'm wishing
    > for is ... wait for it...
    > "A geosynch telescope, watching the dark side, and available to those of
    us,
    > that do Internet Astronomy, among other things.
    > I've sent the question to this group because you have the satellite
    know-how
    > :-)
    > (Just had a thought,... are there ALREADY geosynch's around the Moon?)
    > Thank you.
    > Bruce Musson
    > Ancaster, Ontario, Canada
    > 43.263N 79.8103W
    >
    >
    >
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