- Utah-Astronomy - mailman.xmission.com

Signal sender?
by Patrick Wiggins 23 Jan '05

23 Jan '05

I've reorganized my observatory and find I no longer need the signal sender I bought to transmit audio and video from the observatory into the house. Here's a description: http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=&… I think I spent about $80 for it but I'd be willing to part with it for much less than that. Anyone interested? Patrick

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Auction sites.
by B. Bettilyon 23 Jan '05

23 Jan '05

Other than E Bay, does anyone have some good astronomy auction sites to visit? Barney

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Ad Astra, Johnny Carson
by Chuck Hards 23 Jan '05

23 Jan '05

Johnny Carson died this morning. He had an interest in astronomy, owned a Celestron, IIRC. (As did comedian Charlie Callas...is Callas still living? Vfft-vfft...) Today he's conversing with Carl Sagan, once again... __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail

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Want topographic maps?
by Patrick Wiggins 23 Jan '05

23 Jan '05

Cleaning out the garage I came across several topo maps I don't need. Free to anyone who wants them. 1:125 000 Great Salt Lake and Vicinity 1:24 000 7.5 minute series quadrangle Dromedary Peak Mount Aire Mountain Dell Brighton Sugarhouse Griffith Peak Charleston Peak Mirror Lake Salt Lake City North Fort Douglas

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Re: Dark sky friendly porch lights
by Chuck Hards 22 Jan '05

22 Jan '05

Paul, all lights contribute to light pollution, but the ones defined as "friendly" emit their light in a narrow band of wavelengths that are more easily filtered-out at the telescope. Visually they are still an eyesore. You hit upon the real solution, the fixture. Full-cut-off means that none of the light, whatever the wavelength, is directed upwards. All of it is directed down. The guideline is usually that if the source itself can be seen directly (the bulb, tube, whatever) its not a friendly fixture. IDA has all the minute details, I've only painted the picture with an extremely broad brush (or roller!). Paul wrote: > Any ideas? Maybe a common fixture that can be easily > adapted. I think I > am game for just about any solution as long as my > wife doesn't think it > is ugly.... __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail

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Dark sky friendly porch lights
by Paul Johnson 22 Jan '05

22 Jan '05

My porch light seems to have broken and now I have an excuse to upgrade to one that doesn't add to our light pollution woes. I have looked online at the IDA website and found most (if not all) of the lights featured there are rather expensive. Does anyone know of a good source for non light polluting fixtures in SLC. I live in Tooele and had planned on checking out the selection at Lowes or Home Depot but I don't have much time to shop around too much. I also live on a budget (like everyone else) and would rather save my money for telescope and computer equipment so I hate to pay too much for something I can get cheaper somewhere else. Any ideas? Maybe a common fixture that can be easily adapted. I think I am game for just about any solution as long as my wife doesn't think it is ugly.... Paul.

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ISS Moon transit tomorrow (Friday)
by Patrick Wiggins 21 Jan '05

21 Jan '05

Place yourself along the path indicated below tomorrow between 2041 and 2042 MST and you've got a pretty good chance of seeing ISS pass in front of the Moon. Looks like Flying J out by SPOC will be a good place to observe from. Patrick A - travel distance (kilometers) and direction B - date C - time D - elevation angle of the ISS E - azimuth angle of the ISS ( + is East from North; - is W from N) F - range (kilometers) G - latitude for observing the transit H - longitude I - elevation above Mean Sea Level (meters) J - how far (kilometers) can I be from the centerline? For other than solar transits: K - lunar transits: is space station sunlit? planetary encounters: 1=Mercury; 2=Venus; 4=Mars; 5=Jupiter; 6=Saturn L - sun elevation angle M - sun/moon or sun/planet separation angle A------- B----- C----- D--- E----- F--- G------- H-------- I--- J---- K L---- M---- 26.2 NW 21 Jan 204130 67.6 119.3 393 40.8243 -112.4896 1506 1.8 n -35.2 144.1 19.3 NW 21 Jan 204131 67.7 119.4 393 40.7846 -112.4193 1280 1.8 n -35.2 144.1 12.7 N 21 Jan 204132 67.7 119.4 391 40.7445 -112.3481 1265 1.8 n -35.3 144.1 7.9 N 21 Jan 204133 67.8 119.4 391 40.7044 -112.2770 1283 1.8 n -35.4 144.1 7.4 NE 33.35 40.6894 -112.2501 1.8 9.0 E 21 Jan 204134 67.9 119.5 391 40.6618 -112.2005 2581 1.8 n -35.4 144.1 14.3 E 21 Jan 204135 67.9 119.5 391 40.6228 -112.1325 1890 1.8 n -35.5 144.1 21.1 E 21 Jan 204136 68.0 119.5 391 40.5831 -112.0630 1568 1.8 n -35.5 144.1

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RE: [Utah-astronomy] Is this a great hobby or what?
by Dale Hooper 21 Jan '05

21 Jan '05

I agree with you - the yahoo groups are great places to share and obtain good info. The SNR on most of the groups is fairly good - as opposed to the usenet. The usenet used to be great - but now, for example, most of the messages on sci.physics.relativity are from total nut cases that want to tell you how wrong Einstein was. -----Original Message----- From: utah-astronomy-bounces+dale.hooper=sdl.usu.edu(a)mailman.xmission.com [mailto:utah-astronomy-bounces+dale.hooper=sdl.usu.edu@mailman.xmission. com] On Behalf Of daniel turner Sent: Friday, January 21, 2005 4:54 PM To: utah-astronomy(a)mailman.xmission.com; uvaa(a)mailman.xmission.com Subject: [Utah-astronomy] Is this a great hobby or what? I belong to several of the Yahoo astronomy discussion groups and one of my favorites is the one on planetary nebulae. It can be dead quiet for six weeks and suddenly errupt into a passionate debate about whether post asymtotic giant branch stars actually overlap the proto planetary nebulae as a group. There is lots of heavy hitting technical jargon, my favorite phrase today is "axisymmetric superwind mass loss". If you can't get enough of geek jargon, try the Yahoo group discussions on astronomy. Daniel Turner __________________________________ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250 _______________________________________________ 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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Is this a great hobby or what?
by daniel turner 21 Jan '05

21 Jan '05

I belong to several of the Yahoo astronomy discussion groups and one of my favorites is the one on planetary nebulae. It can be dead quiet for six weeks and suddenly errupt into a passionate debate about whether post asymtotic giant branch stars actually overlap the proto planetary nebulae as a group. There is lots of heavy hitting technical jargon, my favorite phrase today is "axisymmetric superwind mass loss". If you can't get enough of geek jargon, try the Yahoo group discussions on astronomy. Daniel Turner __________________________________ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250

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Re: Motion on Titan
by Chuck Hards 21 Jan '05

21 Jan '05

Sorry about that last repeat of the digest! Why is the delete key right next to the enter key? Argh! Joe, I love the way you pore over every image from each new mission, looking for anything unusual. Now THATS investigative journalism at work! One day, you just might find something that a thousand engineers and technicians missed. On that day, "The Bauman Effect" will enter the scientific lexicon forever! __________________________________ Do you Yahoo!? All your favorites on one personal page Try My Yahoo! http://my.yahoo.com

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