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| how to tell which coatings my Meade 10" SCT has?? | 08 Mar 2004 00:16 GMT | 8 |
I recently purchased a 10" Meade SCT OTA used. The seller wasn't sure what mirror coatings it had as I obtained it from a friend of a friend who wasn't into astronomy. Browsing through Meade's on-line scope manual, it looks to me like all of their SCTs come with EMC coatings as ...
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| Binoculars are go! (Observing report included free!) | 08 Mar 2004 00:09 GMT | 1 |
My current "travel scope" is a pair of Barska 15x70 binoculars on a Velbon camera tripod. Over Christmas I had a chance to try them out in this role at Forster on the NSW North Coast, Australia. Apart from the mozzies, don't you love relative comfort of observing
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| newbie questions on solar observing | 08 Mar 2004 00:05 GMT | 2 |
Hi everyone, I'm very new to solar observing. I've a PST on order & I've few questions regarding these dedicated solar telescope. 1. How long can the scope 'bath' under the sun or, how long each observing session should be restricted to? Will the filter crack if
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| Ray tracing program for Linux | 08 Mar 2004 00:00 GMT | 15 |
Does anyone know of a good ray tracing program for Linux. Failing that, has anyone tried running Oslo or Zemax under Wine? Llanzlan.
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| Definitions Astro "Messier Objects" | 07 Mar 2004 23:55 GMT | 10 |
Ok I looked in two dictionary and could not find "Messier Objects". Would one of you kind astronomers give a layman's definition to me. Thanks in advance Mark F.
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| Astrophotography Photo Development... | 07 Mar 2004 22:48 GMT | 8 |
Heya, I have a roll of 100 speed film that I exposed at the Grand Canyon under partial moon light (http://tycho.usno.navy.mil/gif/moons/m278.gif) and clear skies. My
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| Recent observations of planets | 07 Mar 2004 22:39 GMT | 3 |
Just updated my website with the latest observations of Jupiter,Saturn and Venus: http://planets.lamost.org/EPlanets2003.htm Clear and Steady skies,
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| Comets NEAT & LINEAR - Orbit | 07 Mar 2004 22:28 GMT | 1 |
Anyone know of a good place to find some graphics of where NEAT and LNEAR will be in the sky during late April and May? I need them for our club's publication. I'll give full credit where applicable.
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| Folded Herschelian reflector | 07 Mar 2004 22:12 GMT | 26 |
I'm surprised to find there have been no comments (yet) on the folded Herschelian reflector as described on pages 132-135 of the March 2004 SKY & TELESCOPE. The design is fascinating, and it incorporates an f/25 mirror!
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| If you could have only one kind of eyepiece.... | 07 Mar 2004 22:06 GMT | 6 |
I know, we don't have to choose, but if you could only have one kind of eyepiece, for all focal lengths, which would you pick? We should probably divide the Naglers up according to their type numbers, 1, 2, 4, etc and consider them as different
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| Eyepieces for a 8" newtonian f/5 | 07 Mar 2004 22:04 GMT | 9 |
I have a 28mm kellner (2") eyepiece and want to know which eyepieces to buy next so that I can view the planets in more detail, ie larger image size, more colour etc. What would the NG suggest?
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| reflective eyepieces | 07 Mar 2004 21:41 GMT | 8 |
Okay, so this might sound crazy, however... If we were to assume that it was possible to cheaply produce exoticly shaped first surface mirrors, could they be employed as eyepieces?
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| Lunar observing session: 9-days-old moon (with pics) | 07 Mar 2004 21:38 GMT | 1 |
I added some digital Moon pics to my site of a 9-day-old moon. The images (shot with Nikon Coolpix) are large (in size and bytes) so allow a few seconds to load. You can navigate through the observing report using hyperlinks. In the observing report
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| Celestron CG-5 Advanced Series non-goto equatorial mount? | 07 Mar 2004 21:03 GMT | 8 |
Anyone have any experience with this Chinese-made Great Polaris clone? Is it really sturdy enough to support a C9.25 optical tube well for visual work??? Thank you.
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| Poncet Table tracking | 07 Mar 2004 20:34 GMT | 1 |
All Tonight I setup a poncet table for my dob. It was designed for 30 degrees latitude. My latitude here is aprox 30.31. Anyway after setting the table up. Leveling it and correcting for 7 degrees of
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