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Bill,
It's not a J2000/ J now type problem. The offset (which I'm about to accurately measure) is in both RA and Dec.
I think the EQMod DxSA and DxSB settings should (!!??) provide a shift offset which may help....we'll see.
Paul,
The FOV of the spectroscope slit plate is only 9.8 x 7.4 arc min and double images caused by internal reflection from the plate make it unsuitable for plate solving.
I have used the 60mm electronic finder (105 x 80 arc min) on some difficult targets to plate solve the field and then superimpose the solved image on CdC (using UCAC4) to positively identify faint targets .
The custom park position is set by the motor counters (in Alt Az) rather than RA/ Dec but appears to give the same numbers each time.....
Last edited by Merlin66; 23-08-2019 at 10:31 AM.
Reason: added info
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