comet 12P/PONS-BROOKS - 15 nov. 2023

Astrometric data for minor planet center

COD B96

CON E. Bryssinck, BRIXIIS Observatory, 9150 Kruibeke , Belgium [erik.bryssinck@telenet.be]

OBS E. Bryssinck

MEA E. Bryssinck

TEL 0.4-m f/3.8 reflector + CCD

ACK MPCReport file updated 2023.11.16 10:31:01

AC2 erik.bryssinck@telenet.be

NET Gaia DR2

0012P C2023 11 15.77516 18 01 01.68 +40 00 12.2 10.3 R B96

0012P C2023 11 15.77846 18 01 01.97 +40 00 10.8 10.3 R B96

0012P C2023 11 15.78021 18 01 02.06 +40 00 10.4 10.8 G B96

0012P C2023 11 15.79843 18 01 03.68 +40 00 03.2 10.8 G B96

0012P C2023 11 15.80913 18 01 04.61 +39 59 59.2 10.8 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 15/11/2023 19:17:26 10.31 9.45 9.24 9.19 9.15 9.13 34.9 17.6 B96

12P 15/11/2023 19:17:26* 0.01 0.00 0.00 0.00 0.01 0.00 2 3.1 Gai

AFRHO LOG

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

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

12P 15/11/2023 19:17:26 2.75 2.57 10.02 10.11 35 43732 1253 4.641 B96

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

telescope: Orion Optics AG16 - astrograph 0.4-m

camera: SBIG STL6303

with CLEAR and Bessel-R (Custom Scientific)

Af(rho) parameter according CARA-approach

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