Re: Obsession with SC/AN user guide on groups.io
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Others may be smarter than me, but my understanding is that if you just two a 2 star align, sampling an additional star with ALIGN STAR will not help.? I only used a 2 star align for years and my pointing performance was "dissa-pointing".
But you could resample your original 2 stars you used for the two star align (do a GOTO, use SAMPLE MNT ERROR, not ALIGN STAR, see p. 56 of guide) and sample an additional 2 stars near the area you are observing, which would be 4 sampled stars.? From this compute?and use the IE term (page 59), and your pointing should be better. It's rather quick to do this once you get the hang of it and the pointing performance of the scope will be much better. I usually end up sampling 6 or 8 stars in the area I will be observing (since it is quick to do GOTO to the custom catalog stars in the guide) and only use the IE term with good pointing performance, it only takes a few minutes once you have done the 2 star align.
Greg
On Fri, Sep 4, 2020 at 8:54 PM Roger Greenwood < roger@...> wrote:
So this may be a pretty basic question. And in my busy life(unfortunately lots not Astro-related) here is my question:
Can I add to alignment accuracy by going to "align star" on a 3rd alignment star during the night whilst observing? I would think this would be a capability other than "local sync" that I haven't had great luck with,
-Roger
18" Classic AN/SC/FSA
?Thanks everyone for the supportive comments.? Let me know if anything could be presented in a clearer way, or if there are any tricks or tips anyone would like to add. Gary K ,Gary M and Dave K have contributed since nice components to the total
system to use it is a shame not to use it to its full potential.
Greg
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