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An M17 try with axis issues still
Seeing was very good this morning but what ruined it
was a persistent axis problem with the GSO focuser
and Baader MPCC/ QHY8 combo.
At such a short F ratio either collimation and / or off
axis tilt in the image train is still causing this trailing of stars.
By rotating the entire QHY-8 I can minimise it but not totally
eliminate it. The result here shows the tilt at about the halfway
point of the severity.
If rotation changes the level of this tilt, does that mean it's
NOT collimation?
Steve
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