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Posts Made By: Andrew Riehl

May 13, 2003 10:45 PM Forum: Off Topic Discussions

Andrew....having terrible time w/"Raunchy"

Posted By Andrew Riehl
whenever I used a ronchi screen for testing, I would insert an eypiece directly into the focuser (no diagonal) then center a bright star in the field of view. Then I'd remove the eyepiece and hold the screen directly up to the open rear of the focuser. Never had a problem seeing lines that way...

May 13, 2003 11:09 PM Forum: Off Topic Discussions

Gun control survey...

Posted By Andrew Riehl
heck; that kind of thing went on 7 years ago when I was in High School. Granted I went to a comparitively smaller, more rural school than most did at the time, but anyway...
A few of us used to go hunting after school. One day one of the local cops was patrolling the parking lot looking for kids smoking on school property, stuff like that. He noticed the shotgun case in my one partner's open trunk. He asked him, " what's in the case?" My pal said "a shotgun--I'm going hunting right after school" The officer paused a second or two and said "can I see your hunting license then?" My buddy showed it to him and the officer said 'ok, good luck'. Do that today, and you'll be locked up for 10-20 years.

May 15, 2003 10:23 PM Forum: Off Topic Discussions

Andrew et.al., two ranchi shots.... :-(

Posted By Andrew Riehl
Hi larry...to me it looks either undercorrected or has a turned edge-- you should probably be a little closer to focus so as to have fewer lines in the image...I found a good diagram of what to look for on APM's site...
http://www.apm-us.com/amateur/chromacorr_correction.htm

May 15, 2003 10:27 PM Forum: Equipment Talk

C8 to LXD-55 mount

Posted By Andrew Riehl
should be no problem to find one; just look for the cg-5 dovetail bar used on the 8" g8 scopes (mounted to a cg-5 gem). My guess is you can find one used in no time flat. I'm 99.9% sure the lxd-55 head is identical to a cg-5/GP (dovetailwise at least)

May 16, 2003 01:02 AM Forum: Equipment Talk

Need a good mount for AP 130 f8.35 HELP

Posted By Andrew Riehl
obviously the NJP would be better, but would cost a lot more. Personally I believe an em-200 would be more than adequate. I ccd with my 130 f/8 on an old g-11 and am nothing but happy with the setup; the em200 would be even smoother, although perhaps not as rigid(?).

May 20, 2003 11:05 PM Forum: Off Topic Discussions

Do we have substance yet?.

Posted By Andrew Riehl
well larry, an optical science guy I'm not. Perhaps you should zip an email off to Markus Ludes and ask him. I just don't want to give you wrong advice bud. Best of luck...

May 20, 2003 11:15 PM Forum: Equipment Talk

Autoguiding Help

Posted By Andrew Riehl
What exactly is the problem you're having? couple of questions:
1. Are you using a relay box?
2. what are your minimum and maximum move settings?
3. are you able to get a good autoguider calibration?
4. If you give a 'move' command to the camera, does the scope respond?
5. Are you set to "camera relays"?
6. What other kind of info are you looking for on ccd0ps? I think I'm one of the few people left that uses it darn near exclusively for acquisition.

May 21, 2003 12:48 AM Forum: Off Topic Discussions

Anti-Spam

Posted By Andrew Riehl
Guess you forgot to train it to keep you out of the off-topic forum-- Oops!

smile

May 22, 2003 12:07 AM Forum: Off Topic Discussions

Re: Storm Windows

Posted By Andrew Riehl
You can always tell a house built by a contractor for his family, friends, etc. The extra insulation weighs as much as the wood does...

May 22, 2003 11:08 PM Forum: Equipment Talk

How do you lock the primary mirror on a C 9.25

Posted By Andrew Riehl
Installing mirror lock knobs involves disassembling the whole scope. an example (on a c-11, but in practice would be the same on a 9.25) can be found at:
http://personalpages.bellsouth.net/r/r/rritter2/Celestron_C11_Mods/#Section_4

Is a locking primary a must for ccd imaging? No matter what Meade says, the answer is no. Granted it's always wise to take certain precautions (i.e. guiding off-axis(not with a guide scope), trying not to image across the meridian, etc.); but is a mirror lock necessary? It never was for me....

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