Corpze Posted July 25, 2015 Report Share Posted July 25, 2015 (edited) Hi, i just wan't to get confirmation that the polar error shown in the window "Correction Factors" are shown in degrees? There isn't any mark besides the numbers, but at 2350mm FL and Atik 460 17mm chip, the star moved around 1/8 of the chip size when i moved the star, so to me, it seems that this would be in arc minutes rather than degrees. I am confused. (DDM85, four star align, third polar adjustment.) /Daniel Edit, i started up auto slew and opened up the "Polar adjustment" tool just to check what number it says to me to move the mount, and it is in arc minutes, that seems more reasonable, if that is the case, 0.9 by 0.14 arc minutes seems like a good PA? Edited July 25, 2015 by Corpze Link to comment Share on other sites More sharing options...
GeorgeCarey Posted July 25, 2015 Report Share Posted July 25, 2015 (edited) I have always assumed the value is in arc minutes. Some people say that anything less than 2 minutes is ok. Edited July 25, 2015 by GeorgeCarey Link to comment Share on other sites More sharing options...
Corpze Posted July 25, 2015 Author Report Share Posted July 25, 2015 Yea, that's what i assume as well. Maybe worth a notice to next version of autoslew? Link to comment Share on other sites More sharing options...
MarkS Posted July 25, 2015 Report Share Posted July 25, 2015 It is arcminutes, and when you hit the Polar Align button in Autoslew it tells you.... Mark Link to comment Share on other sites More sharing options...
Corpze Posted July 25, 2015 Author Report Share Posted July 25, 2015 Yes, i noticed that today when I double checked the numbers. What PA error do you use? /Daniel Link to comment Share on other sites More sharing options...
MarkS Posted July 26, 2015 Report Share Posted July 26, 2015 I aim for about 1-2 arcmin. This usually only takes 2 iterations, as I have a good line on Azimuth at my three most used sites. This level of error is perfectly adequate for MLPT tracking with Sequence. Mark Link to comment Share on other sites More sharing options...
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