Hello,
Is there a way to figure out the acceptable error limit for centering as a function of imaging resolution? I am sure if imaging resolution is 0.38"/pixel verses 1.5"/pixel, the tolerance can be very different.
Thanks
Farzad
Your mount will be able to achieve some centering error expressed as an angle. You can convert that to pixels by dividing it by the imaging resolution. So if your mount centering error is 30" then at 0.38" the error in pixels will be 79 pixels while at 1.5" the error will be 20 pixels.
As for why the tolerance is expresses as a linear dimension - pixels - when it’s really an angle is something that’s always puzzled me.
How does the mount report/express centering error?
Thanks
It doesn’t.
Positions are reported as right ascension in hours and declination in degrees. Both are angles.