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I have been trying to get my SW 250P (f/4.7) to the best possible collimation as I couldn't manage to focus on any of the planets so far. I just collimated the scope to ready it up for tonight's session. Your feedback is much appreciated!
Hey guys,im currently on a school trip and brought my celestron firstscope with, tonight we ll be trying some dsos and maybe saturn and jupiter,the telescope itself is not collimated and dirty (on the mirrors)So I wanted to ask.in the scope, there is no primary adjustment screws,only the ones to take it off .Does that mean that its set , allowing me to take it off wash it and back on without having to recollimate the primary?
Guys , i am so frustrated .I can't collimate my newt. I m here with my chesire eyepiece trying to adjust the secondary but when i turn the centre screw, the mirror moves a lot and then shifts back to where it was. And turning the little screws arouns it ddnt so much either. I don't have much time before my session (2 hrs) pls help
As a farely new member and astronomer, I've decided to seek help for collimation.
The task seems pretty daunting at first but I think I got the basics down.
Unfortunately I cannot find any answers for the questions I have, so here it is: Is it 'normal' to see the focuser's end?
As you can see in the attached picture (poor quality, let me know if I should do another) we can see a rectangle at the left, the focuser.
I don't think I should be seeing this and I don't know what causes the problem since the secondary 'seems' to be aligned and the doughnut is dead center.
I'm using a XT10 and the focuser is all the way in.
Thanks for your precious time,
I have a GSO 6" f/4 Astrograph, and there's always been this issue with elongated stars on one edge. I've checked collimation and it is perfect, but for the elongation on one corner. Could someone please throw some light on what's happening