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From: friesen@psivax.UUCP (Stanley Friesen)
Newsgroups: net.space
Subject: Re: Voyager, on to Uranus.
Message-ID: <671@psivax.UUCP>
Date: Wed, 21-Aug-85 16:17:26 EDT
Article-I.D.: psivax.671
Posted: Wed Aug 21 16:17:26 1985
Date-Received: Sun, 25-Aug-85 01:37:38 EDT
References: <1792@aecom.UUCP> <1746@bmcg.UUCP> <1049@ames.UUCP>
Reply-To: friesen@psivax.UUCP (Stanley Friesen)
Distribution: na
Organization: Pacesetter Systems Inc., Sylmar, CA
Lines: 27
Summary: 

In article <464@utastro.UUCP> ethan@utastro.UUCP (Ethan Vishniac) writes:
>
>Actually, something about this puzzles me.  Assuming that the space velocity
>of AC +79 3888 is only known to within 1 km/sec I get that even we aimed
>something at that star we would expect to miss by 13% of a light year.
>This is about a trillion kilometers (about 8000 AU).  Admittedly there
>may be no other use for the manuveuring fuel than aiming at AC +79 3888,
>but no one could reasonably expect anyone there to notice it as it goes
>by.  I'm not much on velocity determinations, but isn't this basically
>right?
>-- 
	Well, there is another reason why no-one is likely to notice
them. If I remember my stellar naming conventions and relative
magnitudes correctly, that star is likely to be a *very* dim type 'M'
dwarf. A planet would have to be closer to it than Mercury is th the
Sun to even have a hope of liquid water, let alone a reasinable
atmosphere, so - *no* life at all to notice anything. Sigh, wouldn't
Tau Ceti have been better? :-)

	Well, I guess it *could* be a low end type 'K' - still not
much hope for life though.
-- 

				Sarima (Stanley Friesen)

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