Re: Almost a new owner.... Getting it through my thick head.
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As they say, whatever works for you, if it works, stick with it
I'm still a little confused as to why you seem to downplay plate solve
it is truly a game changer for AP.?
just?to be clear, once you have it running, there is zero model building, zero multi-star alignment, and targets (visual or not) are solved to within pixels of where they need to be (particularly important for multi-night imaging)
and it happens automatically. With apps like NINA, SGP, etc. all that centering is handled for you
with that kind of sophistication, i'm not sure why you would want to do it any other way if you are doing astrophotography?
Derek i think you said you are still working on getting platesolve working, if you send me a raw file i'll work on it with you :)
Derek, that's a great information. I will give that a try on my next outing. Happy Skies
Sent from my Galaxy Tab A
-------- Original message --------
Date: 2/3/20 1:24 PM (GMT-06:00)
Subject: Re: [Losmandy_users_io] Almost a new owner.... Getting it through my thick head.
Umm.. Because that¡¯s how it is supposed to work?? :-))
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Let¡¯s say you put a camera of some kind on the scope.. or (as a visual observer) you installed a Barlow..
Would it still ¡°work¡±? Yes it would, if you have a ¡°plan¡± for when something happens you didn¡¯t expect, namely when the object you are headed to lands outside the FOV..
?There is a very simple trick that everyone should be using.. Yesterday when I read the Gemini-2 website
I saw it there too.. I *always* GOTO a bright object close to my intended target, *then* GOTO the actual target.. Think ¡°Computerized Starhop¡±..
?My point yesterday is that if you are polar aligned ¨C even close enough ¨C you can then image.. Even
if you plate solve, you are using the same exact method..
?For instance.. If *I* was headed to M78 in Orion to nab an image from the startup position, I would
NEVER try to slew straight to M78 (as I use rather small FOV¡¯s), I might GOTO Betelguese.. It would likely be outside my roughly 20x15 arc min FOV.. Turning on the laser would allow me to find it and center it.. SYNCH.. Then maybe I would GOTO Alnitak, center
and SYNCH.. Then I would be pretty confident that when I did a GOTO to M78, it would be near the center of the FOV and certainly at least in the FOV.. SYNCH on it, in case I accidentally press some button that sends the mount off to some other target so I
can return to where I was supposed be.. This is a bright example, but it works just as well for any object your equipment is capable of showing, and doesn¡¯t involve plate solving, model building, Stellarium, or an Ethernet cable.. It is simply, If you want
your GOTO¡¯s to be 100% accurate, make them as short as possible.. i.e. Alnitak to M78, Polaris to M78..
?Technology comes AFTER this point not before.. IMHO..
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Derek
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Derek and Brian, I dont know really why this has worked for me. I set my tripod pointed North by compass, then used the polar scope ( I can't see the other polar alignment
stars most of the time) so I just centered Polaris right in the center of the line convergence in the polar scope? then aligned on bright star. I had very clear skies last night and the only clear skies for the next week, so you know were I was for the Superbowl
LOL...When I went to GoTo the mount was right on target it tracked the Moon perfectly (visual) for more than two hours, waiting for Orion and M42 to crest the tree line, then to Sirus to do a collimation on my SCT. I spent the rest of the night star hopping.
The GoTo fuction worked just fine.? What I am not sure is, I think Gemini remembers from use to use and I guess it keeps learning or I have just been lucky. Happy skies
Sent from my Galaxy Tab A
-- Brian?
Brian Valente portfolio
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