|
You can do a similar thing with a DSLR and 1 minute exposures. Pick a high zenith star. Stop tracking for 30 secs to get a short star trail then double speed west to get and angle. Look at the exposure an correct on this.
I've done it by stop tracking and then just moving the mount along the RA axis. A swing E & W with the handpiece will show the RA alignment track, stop tarcking with show the difference as the star moves S or N
|