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Old 26-09-2016, 10:12 AM
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Tinderboxsky (Steve)
I can see clearly now ...

Tinderboxsky is offline
 
Join Date: Feb 2012
Location: Kingston TAS
Posts: 1,100
I agree.
There is another little trick that may work for you if you are finding it tricky to judge if the star is in the centre of the field of view. Simply refocus the star into a large diffuse disk. For some it is easier to judge centring this rather than an in focus point of light.

Cheers

Steve

Quote:
Originally Posted by The_bluester View Post
I am not sure how touchy the dob mount is, but I would try doing the alignment differently.

First get the base as level as you can (Do it with a small spirit level, just a plastic Bunnings job would do fine) then I would first find your first star with the 32mm EP but then change to the 10mm and then the 10mmin the barlow to refine the centring of the star. Do the same with the second alignment star, use the low power EP to rough centre it if it is not in view at the higher power, but use the high power EP and barlow to centre it as closely as you can.

I have found with both the goto mounts I have had (A Celestron CPC and now an Orion Atlas pro AZ-EQ mount) the care taken with the alignment, starting with making sure it is level really does pay you back in goto and tracking accuracy all night.
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