Fabio has been working on further upgrades to AstroArt, releasing his SP4.
Version 7.0 SP4 - June 8, 2020
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* New feature. Full-frame autoguide on multiple stars.
* New feature. Syncronization between two sessions for sequences.
* New feature. Focusing with a spectrum reference line.
* New feature. Focusing with the Bahtinov mask.
* New feature. "Connect all" command for instrumentation.
* Improved. Some incompatible DATE-OBS FITS keywords are supported.
* Improved. More options for autoguide.
* Improved. More script functions.
* Bug fix. Apply Macro on 8 bit files changed the extension in some cases.
* Bug fix. Percentage of rejected pixels by sigma not shown in the Log.
The full frame multi star guider options may be of interest to many.
https://www.astroart-forum.net/forum...ce4b8e91#p2052
Of interest to those doing spectroscopy:
From the menu, it's also possible to focus on a
spectrum reference line, where the width of the line is used to estimate focus.