June 24 2026 APP 2.0.0-beta46 has been released !
Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.
May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
FWHM is easy. Shape...not obvious to me. Is it a measure off eccentricity? Would a perfect score be 1.0, or 0.0? Is the axis of eccentricity in the number somehow?
I was long curious about this too. Â
Mabula provided a definition in this post:
https://www.astropixelprocessor.com/community/main-forum/what-is-fwhm-shape/#post-20704
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Mike
That's certainly a useful overall quality metric. But I have to say the decomposed results would also be very useful. I use those figures for more than just deciding whether or not to include a sub in the integration, after all -- it's also a diagnostic for acquisition problems.
Max/min FWHM is more or less a decent proxy for median FWHM (although I'd certainly like to have that too). But standalone roundness would be very useful indeed. I might have nice round but bloated stars from poor seeing or overexposure, but if they're not round, that's a horse of a different color -- means I gotta fix something in my guiding or tracking.
