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Comet 21P/GIACOBINI-ZINNER - 12 july 2018

Photometric data obtained by use of FOCAS-II software:


COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R


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

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

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

21P           12/07/2018 22:35:45  13.06  12.29  11.91  11.66  11.49  11.35  40.8  18.0  B96

21P           12/07/2018 22:35:45*  0.00   0.00   0.01   0.01   0.01   0.01     8   3.5  USN


                                                                     AFRHO         LOG

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

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

21P           12/07/2018 22:35:45    0.75   1.31  37.00  11.76   41    180     4  2.256  B96

Astrometry obtained with Astrometrica


COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.4-m f/3.8 astrograph + CCD

ACK MPCReport file updated 2018.07.13 13:35:29

NET USNO-A2.0

0021P         C2018 07 12.93633 22 06 23.60 +56 52 17.9          13.3 R      B96

0021P         C2018 07 12.94103 22 06 24.68 +56 52 27.4          13.4 R      B96

0021P         C2018 07 12.94478 22 06 25.54 +56 52 34.7          13.4 R      B96

----- end -----


Afρ parameter according to CARA consortium

Afρ-graph (Afρ vs distance to core)  with R-Bessel filter

Af(rho) data available via a request to our CARA-coordinator

comet 21P/GIACOBINI-ZINNER, Erik Bryssinck, BRIXIIS Observatory comet 21P, Erik Bryssinck, BRIXIIS Observatory