Re: Re[2]: Mirror in space
Douglas Gray (dhgray1@hotmail.com)
Fri, 24 Jul 1998 15:16:41 GMT
I would be grateful if anyone could tell me how I can receive the emails
through a digest rather than individual messages. As there are so many,
they are cloggin up my inbox.
Thanks
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>
>Jim Varney wrote:
>
>>IMHO the Leonids are overrated as a danger to spacecraft. Even if the
>>great 1966 display of 100,000 meteors per hour is repeated, the actual
flux
>>of meteors is surprisingly thin. I did a very rough calculation and
found
>>that 100,000 meteors per hour works out to less than one meteor per
square
>>mile at LEO heights.
>
>>So my guess is the thin mylar mirror will end up with a few holes but
won't
>>be destroyed.
>
>I agree with Jim's assesment of the Leonid "threat". There's an awful
lot of
>space up there, and satellites (even Mir) are pretty small targets on
that
>scale.
>
>>Even though I don't think the meteoroids will be the demise of the
mirror,
>>I would still like to see this monstrosity fail. This project is an
>>example of gross light pollution and we should all condemn it as such.
My
>>wish will be for the mylar to be hopelessly ripped and tangled when
>>unfurled. Then I'll join you on the floor for a good laugh!
>
>Agreed 100 percent!! This is a just plain stupid idea, and the threat
to
>ground-based astronomy would be very real if this hare-brained scheme
were to
>gain an ounce of credibility. thankfully I hear that there are
bankroll
>problems which may ground the development of this plan. I don't mind
the
>occasional -8 mag Iridium flare, but to have a -14 mag steady beacon
beaming
>down would certainly ruin my night....
>
>Geoff
>
>+=========================================================================+
>| Geoff Chester grc@spica.usno.navy.mil Public Affairs
Office |
>| US Naval
Observatory |
>| (202) 762-1438 3450 Massachusetts Avenue,
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>| (202) 762-1516 (FAX) Washington, DC
20392 |
>|-------------------------------------------------------------------------|
>| "Each passing hour brings the Solar System 43,000 miles closer to the
|
>| globular cluster M13 in Hercules; yet there are still some misfits
who |
>| insist there's no such thing as progress!" -- Ransom K. Fern
|
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>
>
>
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