I found the culprit ; the 10 min unguided has no drift !! So I need to re look at the guiding parameters !
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On 19-Feb-2020, at 10:52 AM, Suresh Mohan via Groups.Io <email@example.com> wrote:
I’m using a Mach 1 mount , my gear at present is just a qhy183 M with a Samyang 135 mm lens , I’m presently shooting sh2 308 . I’m wel polar aligned with no DEC drift . I’m noticing a tiny trail only in RA only after it crosses the meridian . However I balance east heavy only with the cw bar horizontal . Should I offset it a little more than the existing east heavy position ?