Hi, my message is adressed to Siril designer.
How to get the coordinates in RA and DC with the dynamic PSF? With the command setmag, I’ve calibrated the field of stars and then exported the data . Coordinates RA et DEC missed in order to calibrate data mag with those of Gaia catalog.
Thank’s for your help.
Lisam
Hello and welcome!
Apparently I activated the output of RA and Dec only in seqfindstar, not in the single-image star finder file creation… I’ll try to fix it for next version.
In the meantime, if you need the coordinates of a single star, you can get them from the PSF window after having drawn a selection around it, right click, PSF.
I will wait the next version. I take part in RAPAS program. We calibrate our images with 3 filters similar to those of GAIA.
Thank you
Excellent! Please tell us if you have other needs or ideas that we could add in Siril for photometry processing or analysis.
Hi Vincent,
I noticed different values of magnitude between the PSF photometry and the Dynamic PSF when I calibrated the magnitude with the tooI setmag. The maximum magnitude with the dynamic PSF is around 15. I think the reason is the catalog reference. As I said, I need Gdr3 and the mags are higher.
kind regards,
Lisam
Hi,
I’ did some tests.The calculation is just different between PSF photometry and dynamic photometry. The first méthod seems more precise because it’s possible to parameter the aperture. For example if I calibrate a star with mag 20.6 with the command setmag , it appears à 17.7 in the table of the Dynamic PSF according to the parameters. I’m going to test it again…
The second question is, if I choose Gaiadr3 in the astrometry parameter, what does it do exactly?
Best regards,
lisam
In Dynamic PSF the stars are automatically detected. So it will be less precise that if you do it manually, by selecting your stars and as you said, setting the annulus size.
About the aperture, in Dynamic PSF this is computed from the fwhm size.
I’ve added this for the new version.