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Comet 12P/PONS-BROOKS - 19 jan. 2024

Photometric data obtained by use of FOCAS-II software

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

COMET         UTC                    +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

------------  -------------------  -----  -----  -----  -----  -----  -----  ----  ----  ---

12P           19/01/2024 18:05:43  12.05  10.96  10.37  10.00   9.79   9.67  23.5  16.5  B96

12P           19/01/2024 18:05:43*  0.02   0.03   0.03   0.03   0.03   0.03     2   3.9  Gai

                                                                     AFRHO         LOG

COMET         UTC                   DELTA    r    BOX "   MAG   RSR    CM    +/-  AFRHO  OBS

------------  -------------------   -----  -----  -----  -----  ---  -----  ----  -----  ---

12P           19/01/2024 18:05:43    2.05   1.75  13.47  11.55   24   2963   126  3.472  B96

image taken from BRIXIIS observatory, Kruibeke, Belgium - MPC B96.

telescope: Orion Optics AG16 - astrograph 0.4-m

camera: SBIG STL6303 with SLOAN r’ photometric filter

Af(rho) parameter according CARA-approach

Af(rho) vs core distance - data from photometric SLOAN r’  filtered CCD-image