Hi Gary, a few more questions if I may.
The CA term seems to be a rather large number at 107.5. My scope is a 10" f5 dobsonian and I collimate my secondary with a laser, and my primary with a barlowed laser, so i would think all should be pretty much spot on.
Does this large CA number suggest a problem in this area?
Does the quality of the initial 2 star alignment affect the quality of results of a subsequent TPAS run (assuming correct object identification)?
Thirdly, would a calculated models usefulness be more consistant and useful if my dob scopes base board was always oriented to the same direction each observing session? I'm thinking of the possibility of an off centre or non square azimuth pivot type error here.
footnote: When you buy an Argo Navis, you not only get the most powerful DSC on the market, you also get superlative after-sales service
