AstroTortilla Setup

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Doug
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AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 3:53 pm

I know this is important so I don't want to screw it up.

Here's what I got from the calculator: (http://www.skyatnightmagazine.com/astro ... calculator" onclick="window.open(this.href);return false;)
80MM with Focal Reducer and A8050
Results
FOV: 2.70° x 2.03°
Resolution: 2.95"/pixel
Area: 5.49 sq°
Focal length: 384mm
Focal ratio: f/4.8

EON120mm no Reducer and A8050
Results
FOV: 1.15° x 0.87°
Resolution: 1.26"/pixel
Area: 1.00 sq°
Focal length: 900mm
Focal ratio: f/7.5

This represents my WIDEST (2.7 Degrees) and NARROWEST FOV (0.87 Degree).

According to this http://www.lightvortexastronomy.com/tut ... lving.html" onclick="window.open(this.href);return false;
For the Narrowest, I should take my smallest number, which is 0.87°
The installation suggests we select about 20% of our narrowest field of view
0.87 * 0.20 = 0.174

Now I don't see any choice that low?!!? What should I use here? The lowest value I see is 2-2.8 Arcmin.

Does this mean 0.87 is really a degree?
OK, lets say that's true, it's a degree...
There are 60 Arcminutes in one degree...Right?
So that would be 52.2 Arcminutes,
20% of 52.2 Arcminutes would be 10.44 arcminutes...right?

Take a look at the photo below before I accept it.

Thanks!
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CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008

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Rudeviewer
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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 4:16 pm

That seems correct Doug. It was confusing for me as well.

What program do you use for image acquisition?
Zach
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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 4:48 pm

I use MaximDL.
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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 4:48 pm

Thanks for the double check on the settings Zach!
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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 5:11 pm

No prob, lightvortex setup is a great tool for getting astrotortilla going. He has a limit command where you limit objects down to 100 or so, and I would recommend doing so. It speeds up the process.
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
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Baader RGB/Narrowband filters
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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 5:47 pm

Another question, I took two telescopes, and used the Widest and Narrowest of the combined FOV. Should I do this as combo for both telescopes? Or should I make two different astroTortilla config files for each Telescope?
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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 5:52 pm

Two different scope profiles.
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
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Orion Thin Off-Axis Guider

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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 5:55 pm

Thanks, Yes, I saw that in the example when I continued reading.
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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 5:56 pm

Do you use the 2X2 binning and do you expose at 10 seconds as it recommends?
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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 6:13 pm

Yup sure do. Well I don't use it anymore since I went to SGPro. But yes lol.
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 6:18 pm

I think I got it ready to give it a try.

Do you use EQMOD too?
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CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008

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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 6:30 pm

The astro-physics ascom driver is like a clone of eqmod very similar. Seems pretty easy to use once the little things were figured out.
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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Doug
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Re: AstroTortilla Setup

Post by Doug » Wed Sep 13, 2017 7:17 pm

I'm bring my good OL HC just in case I screw it up. But, I think it's long overdue for me to give it a try. Thanks for your help!
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Re: AstroTortilla Setup

Post by Rudeviewer » Wed Sep 13, 2017 7:20 pm

Post up if you need help!!
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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Re: AstroTortilla Setup

Post by h2opolo » Fri Sep 15, 2017 11:09 am

Pixel scale is pretty much the number one reason for a failed plate solve. Keep an eye on that. Also use the LUM filter for your exposure. I do 2 seconds binned 2x2 and it works fine.

One other thing to remember is to set it for at least 3 or 4 attempts. It will usually be off by a lot on the first try, depending on your mounts tracking, and then get closer and closer. I have mine set to within 50 pixels and 4 attempts.

Lastly if you have any old sync points from a prior night sitting in eqmod delete them out.

Good luck
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Re: AstroTortilla Setup

Post by Rudeviewer » Fri Sep 15, 2017 11:19 am

Astrotortilla is different then sgpro you don't get those options.
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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Re: AstroTortilla Setup

Post by h2opolo » Fri Sep 15, 2017 11:22 am

Oh okay. Sorry. :jumphappy:
Carbon ED 127 FCD 100 SERIES, GSO RC-8, WO ED 102, WO GT71 & Zenith Star 61
Losmandy G11G
NEQ6, Ioptron Sky Guider Pro, Lodestar X2,
QSI 690 & 683, ZWO ASI 294MC, Nikon D750, D5300
Astrodon Ha, SII, OII, LRGB
Shoe size 11.5

Website http://www.redstickastro.com

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Re: AstroTortilla Setup

Post by Rudeviewer » Fri Sep 15, 2017 11:33 am

No worries, but you make a good point, make sure yiibget your pixel scale and field of view correct.....
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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Doug
The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson
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Re: AstroTortilla Setup

Post by Doug » Fri Sep 15, 2017 8:47 pm

Fog... I started... Looked like it might work... Fog
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008

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Rudeviewer
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Re: AstroTortilla Setup

Post by Rudeviewer » Fri Sep 15, 2017 9:53 pm

Haha same here but straight clouds. Got 3 OIII images and then bam!
Zach
Astro-Physics MACH1 GTO
Williams Optics GT81
Astro-Tech 8" RC
WO .8x Reducer/Flattener
ATIK 383l+ Mono
SXFW v2 USB
Baader RGB/Narrowband filters
Lodestar x2
Orion Thin Off-Axis Guider

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