comet 12P/PONS-BROOKS - 28 nov. 2023

Astrometric data for minor planet center

COD B96

CON E. Bryssinck, BRIXIIS Observatory, 9150 Kruibeke , Belgium

OBS E. Bryssinck

MEA E. Bryssinck

TEL 0.4-m f/3.8 reflector + CCD

ACK MPCReport file updated 2023.11.30 14:14:24

NET Gaia DR2

0012P C2023 11 28.72502 18 21 56.95 +38 49 40.6 14.1 R B96

0012P C2023 11 28.72830 18 21 57.26 +38 49 39.4 14.1 R B96

0012P C2023 11 28.73157 18 21 57.62 +38 49 39.7 14.1 R B96

0012P C2023 11 28.73332 18 21 57.82 +38 49 38.0 14.6 G B96

0012P C2023 11 28.74641 18 21 59.20 +38 49 33.9 14.6 G B96

0012P C2023 11 28.75950 18 22 00.58 +38 49 30.9 14.6 G B96

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Photometric data obtained by use of FOCAS-II software

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

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

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

12P 28/11/2023 18:04:15 13.89 12.91 12.34 11.94 11.62 11.35 27.3 17.1 B96

12P 28/11/2023 18:04:15* 0.00 0.02 0.04 0.05 0.04 0.05 2 3.8 Gai

AFRHO LOG

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

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

12P 28/11/2023 18:04:15 2.63 2.42 10.50 13.82 27 1146 42 3.059 B96

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

telescope: Orion Optics AG16 - astrograph 0.4-m

camera: SBIG STL6303

with clear + Bessel-R (Custom Scientific)

Af(rho) parameter according CARA-approach

Af(rho) vs core distance - data from photometric R-filtered CCD-image