Check my math
Posted 01 November 2012 - 03:52 PM
360 degrees x 60 arc-minutes/degree = 21600 arc-minutes
21600 arc-minutes / 4096 = 5.3
So each click of the encoder is 5.3 arc minutes.
Would that mean the accuracy is 5.3 or would it be some multiple of that, 10.6, 15.9?
Posted 01 November 2012 - 04:28 PM
Posted 01 November 2012 - 06:29 PM
This is on the T-Rex alt-az mount.
I was kind of thinking that as long as I use a high power eyepiece to pick my two alignment stars so I can get them centered properly then I should get targets to be within + or - 5.3 arc minutes of the center of an eyepiece.
The only possible problem I can think of is if the longitude axis and the latitude axis are not exactly 90 degrees apart.
Posted 01 November 2012 - 09:40 PM