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J/PASP/121/699      BVR photometry of V343 Ori               (Yang+, 2009)
BVR observations and period variation of the neglected contact binary
V343 Orionis.
    Yang Y.-G.
   <Publ. Astron. Soc. Pac., 121, 699-707 (2009)>
   =2009PASP..121..699Y
ADC_Keywords: Stars, variable ; Photometry, UBVRI


Abstract:
    BVR light curves of V343 Orionis were observed with the 85cm
    telescope at Xinglong Station of the National Astronomical
    Observatories of the Chinese Academy of Sciences, in 2007 and 2008.
    Using the Wilson-Devinney program, the photometric solution of V343
    Ori was first deduced from those observations. Photometric results
    indicated that V343 Ori is an A-subtype W Ursae Majoris binary, whose
    mass ratio and overcontact degree are q=0.253(±0.004) and
    f=86.9%(±2.1%), respectively.

Description:
    Photometric observations for V343 Ori were performed in 2007 December
    and 2008 October, using the 85cm telescope at Xinglong Station of
    National Astronomical Observatories of the Chinese Academy of Sciences
    (NAOC).
Objects:
    ---------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ---------------------------------------------------
    06 05 00.3   +12 33 05   V343 Ori = V* V343 Ori
    ---------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        21     2407   BVR-band observations for eclipsing binary V343 Ori


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

       1  A1    ---     Band      [BVR] Observed band
   3- 14  F12.4 d       HJD       Heliocentric Julian date
  16- 21  F6.3  mag     Dmag      Differential magnitude in Band (1)

Note (1): Coordinates of the Variable, Comparison, and Check stars:
     Variable   : RA=06:05:00.3, DE=+12:33:04.8 (J2000) (V343 Ori)
     Comparison : RA=06:05:16.5, DE=+12:37:58.0 (J2000) (GSC 725-895)
     Check      : RA=06:04:58.7, DE=+12:30:14.6 (J2000) (GSC 725-450)


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    30-Dec-2009