Re: Obsession with SC/AN user guide on groups.io
¿ªÔÆÌåÓýI've texted Gary asking to chime in as I felt he'd dispel all rumors/misconceptions. Particularly one of my own.? After my initial alignment, I'll do a goto BACK to Polaris, center it with a reticle and (re)align. (I forget the actual function name. I believe it's align) After that, I then do a goto BACK to whatever happened to be my 2nd alignment star from the initial alignment procedure,? center it using my reticle, and then (re)align that star. (I always try to pick a star as far away as possible from Polaris BTW. That seems to work for me)? I do 3 or 4 iterations of this procedure and I swear I can see an improvement in pointing accuracy. Each goto results in a more and more accurate centering of the stars. Afterwards, gotos to objects all over the sky are almost always in the center of even 300x (8 & 10 Ethos) plus powered eyepieces.? I hope Gary can clarify this. I do this and I swear by it.? -Dragan 25" f/5 #610 "Toto"? 30" f/4.5 OMI EVO? Sent from my Samsung Note 10+ -------- Original message -------- From: "G.Salton" <g.salton14@...> Date: 9/4/20 9:25 PM (GMT-06:00) Subject: Re: [ObsessionUsers] Obsession with SC/AN user guide on groups.io 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:
|
Dragan Nikin