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Author Topic: Interesting bit of kit  (Read 1677 times)

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Offline dciobota

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Interesting bit of kit
« on: 19:32:01, 08 August, 2013 »
  Not sure exactly where to put this thread, so here it goes lol.  Bumped into this on the Celestron site, maybe you guys have already seen it:

http://www.telescopes.com/telescope-accessories/general-accessories/celestronstarsenseaccessoryforautomaticalignment.cfm

 I've been out of touch for the past few years and seem to be behind on a lot of astro developments.  Now, this may be a typical Celestron product, long in promise and a bit short on delivery, but it really does sound like a very interesting idea!  :-)

 If I recall correctly, one of the things the eqmod software does is alignment using its own routines.  Back when I was developing the android Celestron hand controller I wanted to do the same thing, using some iterative matrix calculations.  But, this seems to go more towards software like TPoint I think, where it does essentially plate solves to calculate the transformation matrix.  I love this idea.

 Actually, I could get excited enough about this idea to write something to take a star field image from a guide cam, plate solve it, update the pointing matrix, and iterate again until some optimum model accuracy is obtained.  That would've fixed my last imaging session where I totally missed M8 and imaged some obscure nebula instead lol.

 What do you guys think?  Has this been already done (ok other than maybe TPoint)?  Is there an open software effort for it?  Is it worth doing? 
What about this particular accessory?

 I know, I was excited about the NexGuide too before I started working with it.  ;)
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Offline chris.bailey

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Re: Interesting bit of kit
« Reply #1 on: 20:26:54, 08 August, 2013 »
Daniel

Not too sure how it does it. The SkyX AllSky star database to do blind plate solves is >2Gb but having collected 30-40 samples it gives leverages TPoint to give instruction of how many clicks to adjust Alt and Az to align the RA axis with the refracted pole. I just can't see this little bit of kit doing the same thing in 2minutes. Mmm

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Offline dciobota

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Re: Interesting bit of kit
« Reply #2 on: 22:22:24, 08 August, 2013 »
 I know, I'm a bit of a skeptic on this also.  But they do say you can do iterative point and solve to get a very accurate model, just by blind pointing all over the sky.

 Btw to you and anyone really, I've seen AstroTortilla mentioned repeatedly over the years as one of the best for plate solving.  I tried and tried but never could get anything but that searching square moving all over the place and no solution at the end.  Astrometry.net though works really well for me.  Has anyone gotten AstroTortilla to work?
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Offline Einari

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Re: Interesting bit of kit
« Reply #3 on: 08:23:36, 09 August, 2013 »
Daniel, I do know people who use AstroTortilla with success.
And also I do now the guys who wrote the software (they still haven't convinced me to try it).
These guys are very helpful so I'm sure it'll work for you too.

Have you looked at the FAQ/discussion pages ?
http://sourceforge.net/p/astrotortilla/home/FAQ/
http://sourceforge.net/p/astrotortilla/discussion/
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Offline dciobota

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Re: Interesting bit of kit
« Reply #4 on: 17:06:18, 09 August, 2013 »
 Hey, thanks for those links Tapio!  I'll have a look at them when I get home.  I'm very interested in getting AstroTortilla to work as the Astrometry.net results are very good, surprisingly good in fact for blind solving.
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