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C/2012 L1  (LINEAR)

CBET 3134 issued on  June 5 2012, annouces the discovery of COMET C/2012 L1 (LINEAR) that was discovered by the LINEAR sky Survey and posted on the Minor Planet Center's NEOCP webpage. Several astrometrists including myself have observed this object and observed that this object has comet-like appearance.

My CCD-images obtained , while it was still on the NEOCP, on June 4.3 with a 0.43-m f/6.8 astrograph located at the RAS Observatory (iTelescope network) near Mayhill; this stacked unfiltered images show a coma of size 9" x 16", elongated toward the southwest (p.a. 228 deg).

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 L1     01/07/2012 23:19:23  17.87  17.43  17.43                       10.2  17.9  B96

C/2012 L1     01/07/2012 23:19:23*  0.06   0.11   0.09                          4   3.3  USN

C/2012 L1     07/07/2012 00:10:17  17.54  17.17  17.01  16.99                11.7  17.9  B96

C/2012 L1     07/07/2012 00:10:17*  0.17   0.31   0.32   0.35                   7   3.5  USN

C/2012 L1     23/07/2012 23:21:37  17.82  17.45  17.38  17.43  17.52         13.0  18.6  B96

C/2012 L1     23/07/2012 23:21:37*  0.08   0.10   0.11   0.24   0.30            5   3.6  USN

C/2012 L1     25/07/2012 00:40:05  17.68  17.22  17.20  17.30                11.9  18.2  B96

C/2012 L1     25/07/2012 00:40:05*  0.09   0.07   0.12   0.10                   3   3.6  USN

C/2012 L1     27/07/2012 00:12:55  17.77  17.28  17.30  17.34  17.35  17.24   8.5  16.6  B96

C/2012 L1     27/07/2012 00:12:55*  0.29   0.21   0.17   0.15   0.65   0.55     3   4.2  USN

C/2012 L1     08/08/2012 00:54:35  17.30  17.04  17.01  17.10                 8.9  18.0  B96

C/2012 L1     08/08/2012 00:54:35*  0.04   0.08   0.07   0.12                   5   3.4  USN

C/2012 L1     19/08/2012 03:03:10  16.92  16.54  16.47  16.40  16.48          4.2  16.6  B96

C/2012 L1     19/08/2012 03:03:10*  0.03   0.07   0.11   0.11   0.12            5   4.4  USN

C/2012 L1     23/10/2012 03:26:18  16.14  15.63  15.38  15.22  15.14  15.09   9.7  16.6  B96

C/2012 L1     23/10/2012 03:26:18*  0.01   0.14   0.15   0.14   0.11   0.11     3   3.2  USN

C/2012 L1     17/12/2012 21:51:28  15.76  15.04  14.64  14.38  14.17  14.02  10.7  17.5  B96

C/2012 L1     17/12/2012 21:51:28*  0.03   0.02   0.01   0.01   0.01   0.01     3   3.2  USN

C/2012 L1     11/01/2013 18:53:10  15.75  15.00  14.61  14.42  14.29  14.22   7.8  17.6  B96

C/2012 L1     11/01/2013 18:53:10*  0.16   0.12   0.07   0.06   0.06   0.07     5   3.2  USN

C/2012 L1     17/02/2013 19:42:44  16.71  16.14  16.01                        4.2  16.1  B96

C/2012 L1     17/02/2013 19:42:44*  0.07   0.16   0.06                          3   3.3  CMC

C/2012 L1     04/03/2013 20:01:57  17.33  16.79  16.84                        2.0  17.3  B96

C/2012 L1     04/03/2013 20:01:57*  0.05   0.17   0.19                          3   3.5  CMC

C/2012 L1     14/03/2013 19:26:42  17.11  16.46  16.34  16.29  16.36          4.7  17.4  B96

C/2012 L1     14/03/2013 19:26:42*  0.35   0.14   0.13   0.09   0.11            3   4.3  CMC