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Comet C/2021 P4 (ATLAS) - 8 nov. 2021

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

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 2021.11.13 11:52:46

NET Gaia DR2

    CK21P040  C2021 11 08.80235 22 50 46.73 +60 47 15.2          17.5 G      B96

    CK21P040  C2021 11 08.80727 22 50 46.32 +60 47 13.5          18.0 G      B96

    CK21P040  C2021 11 08.81629 22 50 45.56 +60 47 08.6          17.8 G      B96

----- end -----

COD L81

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

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

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

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

C/2021 P4     08/11/2021 19:24:26  17.71  17.52  17.57                        7.2  17.6  B96

C/2021 P4     08/11/2021 19:24:26*  0.15   0.29   0.24                          3   4.0  Gai

                                                                     AFRHO         LOG

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

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

C/2021 P4     08/11/2021 19:24:26    3.16   3.73   8.74  17.70    7    110    15  2.043  B96

Observation made on nov. 8 , while this object was still mentioned on the PCCP of the minorplanetcenter , by use of a my 0.4-m f/3.8 newton telescope in my backyard

Photometry obtained with FOCAS-II software: