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Multiband photometric observations and their evaluation to instrumentalmagnitudes were performed using standard Johnson-Cousins filters (B, V, Rc) aswell r and g Sloan filters, and not standard ones (R, G, B, and Clear filters).These were recorded from 9 observatories and from the MicroObservatory RoboticTelescope Network. The results describe the rapid ascent towards the maximum(2.5 magnitudes about in five days in the B filter) and the slow decrease afterthe maximum (0.0425 +/- 0.02 magnitudes/day in the B filter). The resultshighlight the strong variation of the B-V colour indices during the first 50days (from -0.20 +/- 0.02 to +0.85 +/- 0.02) and V-R (from 0 +/- 0.01 to +0.50+/- 0.01) after the explosion, presumably corresponding to the cooling of thestellar photosphere. At 50 days after the explosion the magnitude decrease fromthe maximum was observed to continue where it faded by 2.5 magnitudes (Bfilter), thus we propose SN 2023ixf is a Type II, subtype L, supernova (SNe).

Multiband Photometry Evolution in the First Weeks of SN 2023ixf, a possible II-L Subtype Supernova