UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
Hi Mabula,
You mentioned this in one of your tutorials. How would you go about using an RGB image to color calibrate the stars in a Narrowband image?
Dear @Whixson,
I am not entirely sure what you mean here. Do you mean that one would use a broadband image to correct a narrowband image?
Regarding Star Color calibration with the Black Body models: it can't be done on narrowband data. A Black Body model needs broadband data to be able to work properly.
So in the case of Narrowband data, you will need to use the RGB balance model in the Star Color Calibraiton tool. Then use HSL Selective Color for final tweaks 😉
Mabula