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cg5 mount setup ???

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#1 jog

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Posted 22 February 2009 - 01:42 PM

Hi all, can someone please take a look at this link and go down to step 5 and explain to me why would Celestron design a mount with the DEC alignment marks off by 180 degree. http://www.macastro....ntent&Itemid=96

Thanks

#2 JIM262

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Posted 22 February 2009 - 02:36 PM

Could it be, because the author is from "down under"?

#3 mclewis1

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Posted 22 February 2009 - 02:57 PM

Southern Hemisphere is the reason but you should also be aware that the index marks are only there as a rough starting point. Their actual position has no bearing on the final pointing accuracy or tracking. Using the marks (either right on, 180° or anything in between) just means that you're starting point is consistent which makes the initial alignment a bit easier.


By the way Geoff's write up is actually very good and contains some great suggestions, just be sure to adapt it for Northern Hemisphere operations if you're on that side of the equator.



#4 jog

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Posted 22 February 2009 - 06:32 PM

Thanks for the quick response. that was my first thought the he lives in the southern hemisphere.






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