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CodeTalker: Chart Generator from Ephemeris Service and Star Catalogs

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#1 ButterFly

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Posted 16 February 2024 - 01:56 AM

Introducing CodeTalker - a star chart generator that talks to an ephemeris service, like JPL Horizons, and star catalogs, like GAIA DR3.

 

I created this software so I can get data right from JPL Horizons and plot it against GAIA DR3 stars.  Faint moons are hard to get right with software alone, and fasteroids (an asteroid that moves more than a few arcseconds per minute) move very fast against the sky.  I wanted something that could do both, creating a star chart that goes as deep as I need it to, with the position of the target based on my Latitude, Longitude, and Elevation.  For fasteroids in particular, I also really needed an "Update" button, so I can follow the thing between the time I get oriented in the field, and when I spot it, and every so often thereafter.

 

I can also export plots for later use, but I much prefer to use it at the scope.  Here is an example for 2005 EK70, moving at about 11"/min at present:

 

187026 (2005 EK70)_20240215.jpg

 

This object will get below 13th magnitude in a few days, so it will be fun to follow over the next few days.

 

For my particular telescope, eyepiece, and mount type (a dob), I have the program generate the proper field of view, and set the proper flips and rotation angle to match my eyepiece view.  It has helped a lot at the scope, and I offer for your use and modification, subject to GNU GPL v3.0.

 

There is a manual along with it, with an initial walk through to help get your bearings.

 

Here is a link to the installer and the manual for the latest version: https://drive.google...x1UJFBsITQFFXFE

 

As the program updates, so will the installer, and if necessary, so will the manual.


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#2 ButterFly

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Posted 16 February 2024 - 01:57 AM

Latest Source: https://drive.google...GeorLoGsc6gSDvi

 

The Source will be updated to the link above as it changes.



#3 ButterFly

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Posted 16 February 2024 - 02:01 AM

Should any errors occur, please send me the text of the error messages via PM so I can fix any bugs.  Let me know what you were doing when it happened, and whether you can recreate the error.  That will help out a lot!

 

I'll post an update if one is available, to the link in the first post.  Digging down several posts for the latest version is not fun.  Adding that a new version is available should bump the thread upward, while leaving the latest version in the first post.



#4 CHnuschti

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Posted 16 February 2024 - 04:09 PM

Great contribution for "end-users", thank you for your efforts. The manual is very detailed.

 

regards



#5 ButterFly

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Posted 19 February 2024 - 05:23 PM

Bug fix:  Latitude, Longitude, Elevation change not registered

 

Version 24.2.19 available at link in first post.



#6 ButterFly

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Posted 25 February 2024 - 04:40 PM

Bug Fix: Fixed exception after error message when trying to get asteroid orbital elements from IMCCE

 

Version 24.2.25 available at link in first post.

 

Thanks for the reports.


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#7 jrkorman

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Posted 27 February 2024 - 01:08 AM

Looks quite interesting! May I suggest posting this to the "Software and Computers" forum!



#8 ButterFly

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Posted 27 February 2024 - 01:33 AM

Looks quite interesting! May I suggest posting this to the "Software and Computers" forum!

It's a better fit in solar system.  It has SIMBAD and DSS support, but that's really tangential to the Ephemeris service support.  I did find the GAIA depth very helpful for M31's globs closer to the core.  SkySafari just wasn't cutting it.



#9 ButterFly

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Posted 12 March 2024 - 05:38 PM

Bug Fix: Fixed Simbad plus signs in identifier not working, ie SBSG 1116+518

 

Version 24.3.12 available at link in first post.

 

Thanks for the reports.



#10 ButterFly

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Posted 20 April 2024 - 02:19 PM

v24.4.20
Added Repeating SIMBAD ID when it fails to retrieve single object
Added 15 days default paths for SkyCharts
Added Site Selection
Added Range to ephemeris
Fixed Exception handling for failed Syncs
Fixed blank DSS Label while Fetching Image
Fixed ESA server error message
Fixed Longitude error message
Fixed ephemeris intervals

 

Version 24.4.20 available at link in first post.



#11 ButterFly

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Posted 04 May 2024 - 09:25 PM

v24.5.4
Added Presets of one day, week, and month to ephemeris generator
Fixed cryptic exception message when ephemeris end time earlier than start time

 

Version 24.5.4 available at link in first post.




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