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 comet 304P/ORY - (= 2008 Q2 = P/2014 L4 )

Photometric data obtained by use of FOCAS-II software

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

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

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

304P          19/10/2014 02:43:30  18.67  18.16  18.12  18.05  18.00          5.3  18.0  B96

304P          19/10/2014 02:43:30*  0.27   0.17   0.20   0.23   0.26            4   3.6  Gai

                                                                     AFRHO         LOG

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

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

304P          19/10/2014 02:43:30    1.26   1.57  21.87  18.27    5      2     0  0.269  B96

Discovery:

An apparently asteroidal object discovered by Michel Ory (Delemont, Switzerland), on CCD images obtained with a 0.61-m f/3.9 reflector at Vicques; on 2008 aug. 27.09 with magnitude about 18, which was posted on the Minor Planet Center's 'NEOCP' webpage, has been found by other CCD observers to be cometary.  A. Knoefel (Schoenbrunn, Germany) reports an apparent faint coma.  L. Buzzi (Varese, Italy,) notes a 12" coma elongated to the southwest, adding that his inspection of stacked astrographic images taken by R. Holmes (Charleston, IL, U.S.A., Aug. 28.28) reveals a coma about 20" wide that is elongated in p.a. 240 deg.  A. C. Gilmore and P. M. Kilmartin remark that two stacked 120-s CCD frames taken with the 1.0-m f/7.7 reflector at Mt. John on Aug. 28.6 show a condensed, circular coma of diameter 14" with no tail. ( IAUC 8967 )

Recovery :

Hidetaka Sato recovered comet 2008 Q2 in images taken with the iTelescope 0.51m astrograph at Siding Spring on 2014 June 2.79. The comet is very close to the prediction by B. G. Marsden on MPC 65935. Comet was assigned as 2014 L4 and later numbered as 304P/ORY.  It has a period of 5.8 years. ( CBET 3906 )