On 20-Feb-2020, at 7:20 PM, Lawrence Lopez <lawlopez3@...> wrote:



Might be locked on to a hot pixel.  What guider program are you using ?

If so might need dark frames or hot and/or cold pixel removal.

Then again what do i know.

On Thu, Feb 20, 2020, 12:24 AM Suresh Mohan <drsureshmohan@...> wrote:

I found the culprit ; the 10 min unguided has no drift !! So I need to re look at the guiding parameters !
Suresh
> On 19-Feb-2020, at 10:52 AM, Suresh Mohan via Groups.Io <drsureshmohan=gmail.com@groups.io> wrote:
>
> 
> Hi ,
> 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  ?
> Thanks
> Suresh
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