On Mon, 09 Feb 2004, Edward Smith <emarksmi@san.rr.com> wrote:
From what I could gather, what you are doing is using the error in the
tracking to correct your polar alignment. The manual actually has all
of the directions (up, down, left, and right) and how to correct.
I'll have to play with the geometry until I understand it.
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PS Of course your local altitude to the CNP is a function
of your local geographical latitude above the terrestrial
equator, and that is entirely dependent on local altitude,
since you're viewing the Sun's shadow at southing on your
local meridian of geographical longitude. Align two plumb-
bobs to each end of your line and place your scope in the
middle between them. Point your scope north, and south to
ensure its level placement above the southing-struck line.
Again this is primitive, but is easy and faster than most
all other methods of polar alignment. Check out Celestron
and Meade websites for polar alignment & collimation, e.g:
http://www.celestron.com/polar.htm
http://www.celestron.com/tb-trms.htm
http://www.meade.com/sitemap/index.html
Daniel Joseph Min
*DOWNLOAD FREEWARE Shadows Sundial Program:
http://web.fc-net.fr/frb/sundials/gb/defaut.htm
*DOWNLOAD FREEWARE Carte du Ciel:
http://www.stargazing.net/astropc/index.html
*DOWNLOAD FULL-FUNCTION DEMO of SkyMap:
http://www.skymap.com/smp_eval.htm
ftp://ftp.ttp.co.uk/smp9eval.exe
*1965 NASA Dictionary of Technical Terms:
(compare modern dictionary definitions)
http://roland.lerc.nasa.gov/~dglover/dictionary/content.html
*Precision Solar System Data:
http://www.solarviews.com/eng/data1.htm#orb
http://www.solarviews.com/eng/data2.htm#phy
http://www.solarviews.com/eng/homepage.htm
http://solarsystem.nasa.gov/features/planets/planetsfeat.html
http://ssd.jpl.nasa.gov/phys_props_planets.html
http://ssd.jpl.nasa.gov/elem_planets.html
*Precision ACS Int'l Atlas (Shank's):
http://www.astro.com/cgi/aq.cgi
*Precision Julian-to-Gregorian Dates:
http://www.norbyhus.dk/calendar.html
*Precision US Map Coordinates:
http://terraserver.microsoft.com/default.aspx
*TopoZone (cf. terraserver):
http://www.topozone.com/
*Precision Int'l Map Coordinates:
http://www.maporama.com/share/
*Precision UK Street Maps:
http://www.streetmap.co.uk/
*Precision Ancient Babylonian Astronomy:
http://www.spirasolaris.ca/sbb2c.html
*Time Series Analysis & Graphics:
http://www.spirasolaris.ca/time1.html
http://www.spirasolaris.ca/times2.html
*See also:
http://www.spirasolaris.ca/
But be sure to separate facts from opinions,
strict calculations from flights of fantasy;
otherwise, these are very interesting pages.
*Miscellaneous Reference For Periodic Events:
http://climate.gi.alaska.edu/Curtis/astro1.html
*Min's Newsgroup-Archived Home Page On The World Wide Web:
http://groups.google.com/groups?selm=5YTK57VH37948.6355092593@Gilgamesh-frog.org
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2004/01/03 (contact <abuse@cotse.com>) Blue.Jay celebrates
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2004/01/19 <rabbi@thetis.deor.org> Len Sassaman chooses that moment to bring his support to Blue.Jay
http://groups.google.com/groups?selm=Pine.LNX.4.58.0401181826110.31463%40thetis.deor.org&oe=UTF-8&output=gplain
More about the subject will be available http://frogadmin.yi.org/HOS/
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