April 2004 - Utah-Astronomy - mailman.xmission.com

utahastronomy.com email?
by lucyblue＠xmission.com 21 Apr '04

21 Apr '04

Soo.. would anyone be interested in a whoever(a)utahastronomy.com email address? =D Would be accessable by web or by a POP3 client. I'm looking into the options. Cyn -- http://www.utahdogs.com http://www.cynthiablue.net

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Update On Weekend Weather
by Jim Gibson 18 Apr '04

18 Apr '04

Thursday night The tea leaves say (from Dugway MET) there will be hi cirrus with the wind dieing down in the evening in Northern Utah Friday night We wetted a sheeps nose (with a Chem. Wipe) and spun it on an Ouija board and it came up - The only clear spot in the state will be Blanding (South East Utah). The models (mostly blonds) are showing St. George cloudy Friday as well; with Blanding only clear until mid-night. There will be strong south westerly winds ahead of the front. Saturday night The Tarots say the whole state is washed out Saturday night. --------------------------------- Do you Yahoo!? Yahoo! Tax Center - File online by April 15th

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Weather Friday and Saturday nights
by Jim Gibson 18 Apr '04

18 Apr '04

The models are showing a weather system moving in Friday night. It looks like Castle Dale will be clear until about midnight, then it starts to deteriorate. St. George looks like it will be better longer. Saturday it will be cloudy state wide and it doesnt look like it will be gone by nightfall. I will get a last minute update tomorrow about this time. JG --------------------------------- Do you Yahoo!? Yahoo! Tax Center - File online by April 15th

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Question regarding parallel style Binocular Mounts and Tripods
by A. Gary Thompson 16 Apr '04

16 Apr '04

I'm considering purchasing an Orion Paragon-Plus Binocular Mount & Tripod ($279). Does anyone have input regarding this? Is there a better product available and/or for a better price? I would be using the system for binoculars up to 80 mm. Thanks.

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Re: [Utah-astronomy] Update On Weekend Weather
by UTAHDEB＠aol.com 16 Apr '04

16 Apr '04

Hmmm, sounds like a good weekend to go to the movies. Debbie

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Update On Weekend Weather
by Jim Gibson 15 Apr '04

15 Apr '04

I tried this onec and didn't see it appear. I hope you all don't get this twice. Thursday night The tea leaves say (from Dugway MET) there will be hi cirrus with the wind dieing down in the evening in Northern Utah Friday night We wetted a sheeps nose (with a Chem. Wipe) and spun it on an Ouija board and it came up - The only clear spot in the state will be Blanding (South East Utah). The models (mostly blonds) are showing St. George cloudy Friday as well; with Blanding only clear until mid-night. There will be strong south westerly winds ahead of the front. Saturday night The Tarots says the whole state is washed out Saturday night. --------------------------------- Do you Yahoo!? Yahoo! Tax Center - File online by April 15th

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Fwd: FW: FWD: taxes
by Rob Ratkowski 15 Apr '04

15 Apr '04

> >ZERO GRAVITY > When NASA first started sending up astronauts, they >quickly discovered that ball-point pens would not work >in zero gravity. To combat this problem, NASA >scientists spent a decade and $12 billion developing a >pen that writes in zero gravity, upside down, on >almost any surface including glass and at temperatures >ranging from below freezing to over 300 C. > The Russians used a pencil. > Enjoy paying your taxes--they're due again. PS don't know if the $12 billion is true ....................

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Grim for the weekend
by Michael Carnes 13 Apr '04

13 Apr '04

I've been looking forward to my first trip to the Wedge Overlook this weekend. What I've been seeing on the weather for the last several days does not make me happy. Grrrr...

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RE: [Utah-astronomy] seeking advice
by Michael Carnes 13 Apr '04

13 Apr '04

Joe, Blowing it off is the safest thing to do. If you've got crud on the inside of the corrector or on the secondary, you can tape a plastic soda straw to the end of a blow bulb (use the type of straw that has the bending zone). You can then insert this through the mirror cell (where the diagonal goes in), and carefully maneuver the end of the straw into place under the corrector. Unless you've got negative pressure near the mirror cell, this still means that the dust is only displaced inside the scope, but with a little luck it will land on the inside of the tube. Of course, if it lands on the mirror, you haven't really improved anything. I successfully used this technique to get a nasty blob off the secondary in my 5". But as most others have said, little tiny specks of dust won't really cause a lot of harm. Michael -----Original Message----- From: "Don J. Colton" <djcolton(a)piol.com> Sent: Apr 13, 2004 9:16 AM To: Utah Astronomy <utah-astronomy(a)mailman.xmission.com> Subject: RE: [Utah-astronomy] seeking advice Hi Joe Just blow it off with a hand bulb blower like they sell at camera stores. Do not use compressed air. Do not use any liquids they just make it worse. I have never seen any improvement when using the scope after cleaning. Clear Skies Don Colton -----Original Message----- From: utah-astronomy-bounces+djcolton=piol.com(a)mailman.xmission.com [mailto:utah-astronomy-bounces+djcolton=piol.com@mailman.xmission.com]On Behalf Of Joe Bauman Sent: Tuesday, April 13, 2004 8:50 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] seeking advice Hi Brent, Maybe I didn't pharse that right. It's an SCT. I don't want to clean the mirror, just the surface of the glass on top, immediately under the lens cap. I thought that was the corrector plate, but maybe I'm wrong! -- Joe _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy(a)mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy(a)mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com

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RE: [Utah-astronomy] seeking advice
by Dale Hooper 13 Apr '04

13 Apr '04

Joe, I've cleaned my corrector plate a couple times over the 6 years that I've had my 10" LX200. Here are a few good references. I've, of course, always waited until there was a pretty bad "dirty film" on the corrector before cleaning it. You could also search the archives at mapug.com According to "thee" LX200 guru - Doc G., the correctors on the LX's are pretty resilient. However, keep in mind what Dr. Clay says..."Although we are attempting to obtain the best possible light transmission efficiency from our optics by cleaning them free of deposits, film and debris, lock firmly in your memory that cleaning coated optical surfaces is the single-most damaging action that will be done to them, short of actual physical damage or breakage. No matter how careful, how delicate, nor what cleaning solution is used.....every time cleaned will result in a microscopically-reduced optical performance than before cleaning." http://easyweb.easynet.co.uk/~chrish/lx_corre.htm http://m1.aol.com/kewtasheck/corrector.html http://www.arksky.org/asoclean.htm > -----Original Message----- > From: Joe Bauman [mailto:bau@desnews.com] > Sent: Tuesday, April 13, 2004 8:13 AM > To: Utah Astronomy > Subject: [Utah-astronomy] seeking advice > > > Hi, I'm hoping one of our list folks can give me some information as > soon as convenient. I'm planning to head out for some > astrophotography soon, and as I was working on some problems (like > making a hyperfocal lens), I had the telescope set up during the > daytime. This gave me a good look at the corrector plate and it was > fairly dusty. The last time I cleaned a corrector plate was with my > old Celestron 8" and I really screwed things up -- I took the > corrector off and failed to note its alignment, so I got it back on > wrong. I was never again able to collimate it well. Now with my new > 12" I don't want to make mistakes and I won't be taking the corrector > off. > > What I would like someone to tell me -- particularly an experienced > old hand like Patrick, Chuck, Siegfried, Bruce, etc., etc. -- is a > good, safe, quick way to clean the dust from the surface of the > corrector. Any suggestions? Or does anyone have any stories to share > on this? > > Thanks very much, Joe > > _______________________________________________ > Utah-Astronomy mailing list > Utah-Astronomy(a)mailman.xmission.com > http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > Visit the Photo Gallery: http://www.utahastronomy.com > >

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