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Subject: Re: Alignment Report ver3.20L 2star site=unknown
From: LAVANHOE
Reply To: mapug@shore.net
Date: Fri Nov 18 02:36:49 1994
Hi,
I understand some action by all of us is required. However, weather conditions here were very bad over the last couple of weeks.
It may be interesting to know that I have an 8" LX200 that is permanently mounted (see CCD Astronomy fall 1994 - Letters to the Editor). I never succeeded in aligning onto Regulus (which is the name of my observatory, by the way). The errors are between 10' and 40', way higher than what I use to see (below 10').
My contribution is to follow Luc Vanhoeck
______________________________ Reply Separator _________________________________ Subject: Alignment Report ver3.20L 2star site=unknown Author: rapr@med.pitt.edu (Robert Preston) at INTERNET Date: 18/11/94 1:08
Hey, LXers! Either no one is observing, or this is a dead topic, since I've received no returns of alignment reports from you-all yet. Below is a pretty crappy one I did (in a half-awake state, apparently) this morning. The awful alignment on Mars after SYNCing on nearby Regulus suggests that the SYNC function may not engage under the "unknown site" alignment condition. OTOH, maybe my 'scope is malfunctioning, or something. This will need further testing, or clarification by Meade; there's nothing about the SYNC function in the user manual, as far as I can tell, except in the permanently mounted polar config- uration. LX200 Alignment Accuracy Survey Report ALIGNMENT DETAILS: 1. observer..............................: Robert Preston 2. city/state/country....................: Pittsburgh PA USA 3. date/time.............................: 11/17/94 11:00 UT 4. approx. lat. & long...................: 40N 80W 5. ambient temperature...................: 10 C 6. phase of moon (for obsessives only)...: Full, minus one day 7. aperture..............................: 8" 8. focal ratio...........................: f10 9. purchase date and N(ew)/U(sed)........: 7/94 N 10. software version #....................: 3.20L 11. mount type (perm./tripod).............: tripod 12. 'scope clock sync'd w/reference? (y/n): n 13. alignment type alt/az (y/n): y if yes, do lines 14-18 14. site (known or unknown)...........: unknown 15. if scope was leveled, how.........: not level at all, by LX200 bubble (e.g., LX200 bubble level, carpenter's level, etc) 16. ID (name or number) 1st align star: Arcturus 17. ID (name or number) 2nd align star: Sirius (or "none" if 1 star used) 18. centering method..................: finder crosshairs (finder prealigned w/ main scope) (e.g., finder or main 'scope, with/without crosshairs, etc.) 19. alignment type polar (y/n): n if yes, do lines 20-26 20. is smart drive trained? (y/n).....: 21. if 20=yes, # of UPDATEs done..: 22. is dec. backlash compensated (y/n): (if "refined" polar alignment done, give data for next two lines) 23. number of pole-star centerings....: 24. times between pole-star centerings: (if "precise" polar alignment done, give data for next two lines) 25. no. of drifts obs'd at meridian...: 26. no. of drifts obs'd at horizon....: ALIGNMENT RESULTS: 27. if HP NOT engaged (for pre-HP versions, if not SYNCed): name "GOTO" target approx. error at target, arcsecs a. Regulus 600 +/- 60 b. - c. - d. - 28. if HP engaged (for pre-HP versions, if SYNCed on some star) (HP/SYNC): SYNC name SYNC star name GOTO target approx. error at target, arcsecs a. Regulus Procyon 600 +/- 60 b. Regulus Mars 900 +/- 60 (despite close Regulus!) c. Regulus Venus 800 +/- 80 d. -