Finnally, I found the time to process the data I acaquired during the maximum birightness of SN 2023 ixf.
During 25th May and 1st June I took images in four nights, in total 203x 4min subs. I integrated each series separately and then registered and integrated the four masters. The total exposre was 13.5 hours with my Vixen R200SS with Corrector PH and a a Lacerta DeepSkyPro 2600c camera.
From each series' master I determined the brightness of the SN and compared my data to those from
www.rochesterastronomy.org. using PI AperturePhotometry. I used the flux data and calculated the magnitude using the equation mag1 = mag - 2.5*log10(flux1/flux2) where mag1 and flux1 are the data of the supernova, while mag2 and flux2 are the values of the reference stars. PI found 50 reference stars. The error bar is the standard deviation of the measurement on about 50 stars on each image. Thats's the same procedure I used for SN2022hrs in M60 last year (
SN2022hrs).
I hope you like it
CS, Ulli
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