comet C/2011 J2 - 23 sept. 2014

C/2011 J2 (LINEAR) - 23 sept. 2014 (with B-component)

Astrometry for minor planet center:

COD U69

CON iTelescope.net SRO Observatory Auberry California USA

OBS E.Bryssinck

MEA E.Bryssinck

TEL 0.62-m f/6.5 astrograph + CCD

ACK MPCReport file updated 2014.09.23 19:39:04

AC2 erik.bryssinck@...

NET USNO-A2.0

CK11J020 C2014 09 23.34990 23 25 14.97 +45 58 41.3 17.7 N U69

CK11J020 C2014 09 23.35057 23 25 14.88 +45 58 40.2 18.3 N U69

CK11J020 C2014 09 23.35118 23 25 14.82 +45 58 39.7 17.7 N U69

CK11J020 C2014 09 23.35182 23 25 14.83 +45 58 39.4 17.8 N U69

CK11J020 C2014 09 23.35245 23 25 14.71 +45 58 38.3 17.9 N U69

CK11J020 C2014 09 23.35310 23 25 14.66 +45 58 37.4 17.9 N U69

CK11J020 C2014 09 23.35377 23 25 14.59 +45 58 37.0 17.8 N U69

CK11J020 C2014 09 23.35442 23 25 14.53 +45 58 36.3 17.8 N U69

CK11J02b KC2014 09 23.35118 23 25 15.14 +45 58 50.6 19.9 N U69

CK11J02b KC2014 09 23.35311 23 25 14.97 +45 58 48.5 19.6 N U69

----- end -----

As follow-up, this second nucleus was observed by use of my 0.6-m f/6.8 astrograph and Clear filter from California USA.

Photometric data obtained by use of FOCAS-II software

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

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

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

C/2011 J2 23/09/2014 08:28:29 16.11 15.47 15.16 14.99 14.92 14.90 7.4 19.4 U69

C/2011 J2 23/09/2014 08:28:29* 0.06 0.08 0.07 0.06 0.03 0.05 4 1.7 USN

AFRHO LOG

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

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

C/2011 J2 23/09/2014 08:28:29 3.49 4.24 7.91 16.18 7 708 96 2.850 U69