Date: Sat, 26 Sep 92 05:03:06 From: Space Digest maintainer 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 Welcome to the Space Digest!! Please send your messages to "space@isu.isunet.edu", and (un)subscription requests of the form "Subscribe Space " to one of these addresses: listserv@uga (BITNET), rice::boyle (SPAN/NSInet), utadnx::utspan::rice::boyle (THENET), or space-REQUEST@isu.isunet.edu (Internet). ---------------------------------------------------------------------- Date: 26 Sep 92 04:02:12 GMT From: Tanya Sienko 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 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 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 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 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 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 ------------------------------