Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
Hi all,
I have a question for the new available dualband filters for SII/OIII
How do we seperate the SII from the OIII, using the Halfa-OIII extract
Halfa for SII?
Just in case I get myself such a filter I'd like to know
Thanks for any feedback,
Mert
You treat it just as if was Ha. So use the Extract Ha algoritm to extract Sii.
/Stefan
@digitaliz-se Thanks Stefan, that's what I imagined since the central band wavelength is
very similar between halfa and SII
What about an SII/OIII color image? Like the Ha/OIII color. Is that possible? Thanks.
Hi Richard.
See above: Treat it as Ha/OIII - and rename to SII and OIII.
See also here: https://www.astropixelprocessor.com/community/tutorials-workflows/askar-colour-magic-filter-c1-c2-stacking-flow/#post-30580
and here: https://www.astropixelprocessor.com/community/tutorials-workflows/ha-oiii-integration-which-algorithm-in-0raw-fits/#post-32888
I have the Altair 6nm Combo, and following exactly this, I successfully generate:
- Ha and OIIIa from my Ha-OIII Filter
- SII and OIIIb from my SII-OIII Filter.
I then register OIIIa and OIIIb to OIII and have my 3 Narrowband FITS.
Stacking is really good (best) in APP - for all other I use PixInsight.
You need to carefully (re)name, and assign the right flats, darks and bias.
Thanks Michael, that's good to know!
