Search found 3 matches

by Jim_Ritscher
Tue Sep 24, 2019 9:16 pm
Forum: Polar Alignment
Topic: PA Tracking or no?
Replies: 4
Views: 312

Re: PA Tracking or no?

Thank you.
Jim
by Jim_Ritscher
Sun Sep 22, 2019 12:25 am
Forum: Polar Alignment
Topic: PA Tracking or no?
Replies: 4
Views: 312

Re: PA Tracking or no?

Robin, Thanks for the response. Let me push back a little and see what you think. Perhaps my thinking (or calculation) is way off here. • Say tracking is off. • The earth moves 15° in one hour. • That’s 15 arc minutes in one minute, • and 15 arc seconds in one second. For my guide scope, one pixel c...
by Jim_Ritscher
Fri Sep 20, 2019 4:45 pm
Forum: Polar Alignment
Topic: PA Tracking or no?
Replies: 4
Views: 312

PA Tracking or no?

I was told that you should turn off tracking during polar alignment. Is this true? I'm using a ZWO 60 mm (focal length 280 mm) guide scope with a ASI 120 camera, which gives me a horizontal angle of view of about 1°. Without tracking, during a two second exposure, I can see the stars move. My mount ...