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Comet C/2012 T5 (BRESSI)

CBET 3258: COMET C/2012 T5 (BRESSI)

     T. H. Bressi reports his discovery of a diffuse comet with an apparent faint tail about 9" long in p.a. 260 degrees on CCD mosaic images taken with the Spacewatch 0.9-m f/3 reflector at Kitt Peak (discovery observations tabulated below); follow-up observations by Bressi with the Spacewatch 1.8-m f/2.7 reflector on Oct. 16.3 UT show the comet to be diffuse with a broad tail extending about 10" in p.a. about 27 deg….

.....  E. Bryssinck (Kruibeke, Belgium; 0.4-m f/3.8 astrograph; Oct. 16.9) writes that nine stacked, unfiltered images reveal a coma of size 12" x 16", elongated toward p.a. about 285 deg, with a very faint tail extending for approximately 18" in p.a. 273 degrees.  L. Buzzi (Varese, Italy; 0.38-m f/6.8 reflector; Oct. 17.0) reports that a stack .....

Photometric data obtained from FOCAS-II software

COD B96

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

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

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

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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

C/2012 T5     16/10/2012 22:12:46  18.25  17.58  17.43  17.40                 2.6  17.1  B96

C/2012 T5     16/10/2012 22:12:46*  0.11   0.18   0.42   0.55                   2   3.4  CMC