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Date: Sat, 26 Sep 92 05:03:06
From: Space Digest maintainer <digests@isu.isunet.edu>
Reply-To: Space-request@isu.isunet.edu
Subject: Space Digest V15 #250
To: Space Digest Readers
Precedence: bulk
Space Digest Sat, 26 Sep 92 Volume 15 : Issue 250
Today's Topics:
Alan Bean (2 msgs)
Galileo Update - 09/24/92
Ion for Pluto Direct
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----------------------------------------------------------------------
Date: 26 Sep 92 04:02:12 GMT
From: Tanya Sienko <sienko@mrcnext.cso.uiuc.edu>
Subject: Alan Bean
Newsgroups: sci.space
andy@syma.sussex.ac.uk (Andy Clews) writes:
>Does anyone know if a book exists of [reproductions of] former Apollo 12
>astronaut Alan Bean's space-oriented paintings, especially the ones he's
>painted depicting lunar scenes? And, are prints of his paintings available
>from any source (I assume the originals are not for sale :-)
>If you can help, please email me with as much detail as possible.
>Thanks to all for listening.
>--
>Andy Clews, Computing Service, Univ. of Sussex, Brighton BN1 9QJ, England
>JANET: andy@uk.ac.sussex.syma OTHER NETWORKS: andy@syma.sussex.ac.uk
I don't know of any books, but limited edition prints of some of his
paintings are published through the Greenwich Workshop and are sold through
their dealers (typically galleries and frame shops). For the location of
the dealer nearest you, write the Greenwich Workshop at:
The Greenwich Workshop
30 Lindeman Drive
Trumbull, CT 06611
1-800-243-4246
Note that these are limited edition, fine art prints and are thus rather
expensive (perhaps a few hundred dollars) but I know that they also have one
or two relatively inexpensive Alan Bean posters.
The latest painting (still available, I think) is rather special. Called
"In Flight", it depicts Alan Shepard's famous Apollo 14 lunar golf shot.
The print is then signed not only my Alan Bean, but also the three Apollo 14
astronauts, Shepard, Mitchell and Roosa. Limited to 850 signed and numbered
prints, it goes for $385.
I am not connected with the Greenwich Workshop. Just a very satisfied frequent
customer.
------------------------------
Date: 26 Sep 92 04:07:44 GMT
From: Tanya Sienko <sienko@mrcnext.cso.uiuc.edu>
Subject: Alan Bean
Newsgroups: sci.space
[regarding astronaut Alan Bean's space artwork]
I have a flyer for a half hour video documentary about Bean and his art.
It's available from Rudy Inc., 40 Glengarry Ave., Toronto M5M 1C9, Canada.
(416) 489-7760. $19.95 plus shipping and tax.
I have not seen this video, and don't really know anything else about it
at this time (but I'll probably buy it).
------------------------------
Date: 26 Sep 92 14:20:53 GMT
From: Ron Baalke <baalke@kelvin.jpl.nasa.gov>
Subject: Galileo Update - 09/24/92
Newsgroups: sci.space,sci.astro,alt.sci.planetary
In article <1992Sep25.151009.23426@kbsw1>, chris@kbsw1 (Chris Kostanick 806 1044) writes...
>Ron, could you give a brief explanation of the power bus imbalance
>model?
Debris from the Spin Bearing Assembly seems to be causing small currents
to temporarily open up between a 30 volt power supply and the ground chasis.
The voltage imbalances have been occuring since December 1990, and have been
more of a nuisance than a real threat to the Galileo mission.
___ _____ ___
/_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
| | | | __ \ /| | | | Jet Propulsion Lab |
___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Quiet people aren't the
/___| | | | ___/ | |/__ /| Pasadena, CA 91109 | only ones who don't say
|_____|/ |_|/ |_____|/ | much.
------------------------------
Date: 26 Sep 92 03:34:48 GMT
From: Dave Tholen <tholen@galileo.ifa.hawaii.edu>
Subject: Ion for Pluto Direct
Newsgroups: sci.space
Dan Vento writes:
>>The current Pluto flyby mission design calls for chemical rockets and NO
>>Jupiter flyby, and the flight time is about seven years. Your posting seems
>>to be claiming that an ion drive can place twice the payload into orbit around
>>Pluto with a flight time of about 3.5 years. If this were true, I'm quite
>>certain that the Outer Planets Science Working Group would have heard of it.
> 2
> It is true! S=1/2 a t . Even if a is only .001g (about what you get from
> ion engines) t becomes quite small. Run the numbers, you will be surprised!
May I suggest you do the same. Don't forget, this thing is supposed to go
into orbit, so the velocity must be reduced to a very small value before you
get there. Also, don't forget F = ma, because it's supposed to handle twice
the payload. And while you're at it, you'd better add in the development
time necessary to offer a highly reliable ion drive with an operating lifetime
of at least 30,000 hours. If you can't manage continuous duty, then you'll
need to include the time while a = 0.
------------------------------
Xref: crabapple.srv.cs.cmu.edu sci.space:48969 sci.astro:26616 alt.sci.planetary:87
Path: crabapple.srv.cs.cmu.edu!cantaloupe.srv.cs.cmu.edu!rochester!rutgers!sun-barr!olivea!sgigate!odin!triton.mti.sgi.com!wsj
From: Bill Johnson <wsj@triton.mti.sgi.com>
Newsgroups: sci.space,sci.astro,alt.sci.planetary
Subject: Re: Mars Observer Update - 09/25/92 (Launch Day)
Keywords: Mars Observer, JPL, KSC
Message-Id: <1992Sep26.030552.7329@odin.corp.sgi.com>
Date: 26 Sep 92 03:05:52 GMT
References: <1992Sep26.012532.5320@elroy.jpl.nasa.gov>
Sender: Net News <news@odin.corp.sgi.com>
Reply-To: wsj@wpd.sgi.com
Organization: Silicon Graphics, Inc.
Lines: 7
Nntp-Posting-Host: triton.mti.sgi.com
Source-Info: Sender is really news@CRABAPPLE.SRV.CS.CMU.EDU
Source-Info: Sender is really isu@VACATION.VENARI.CS.CMU.EDU
Thank you for this report. You really communicated the excitement and
suspense of the launch!
--
Bill Johnson 10U-178 wsj@mti.sgi.com
Silicon Graphics, Inc. Office:(415) 390-4283
MTI Compilers Fax:(415) 969-2314
------------------------------
End of Space Digest Volume 15 : Issue 250
------------------------------