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IAUC nr.9214, issued on 2011, June 06, announces the discovery of a new comet (discovery magnitude 16.3) by Robert H. McNaught through the 0.5-m Uppsala Schmidt + CCD at Siding Spring, on images obtained on 2011, June 3.7. The new comet has been designated C/2011 L3 (McNAUGHT).

Comet C/2011 L3 (MCNAUGHT)

Photometric data obtained from FOCAS-II software:

COD B96

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

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

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

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

C/2011 L3     24/09/2011 20:57:24  18.46  17.61  17.36  17.37                 5.8  17.7  B96

C/2011 L3     24/09/2011 20:57:24*  0.11   0.12   0.22   0.25                   2   2.9  Gai

                                                                     AFRHO         LOG

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

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

C/2011 L3     Orbital elements not found

FoCAs 3.66

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs