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J/A+AS/136/293      Sirius photographic observations         (Jasinta+, 1999)
The photographic observations on the components of Sirius
       Jasinta D.M.D., Hidayat B.
      <Astron. Astrophys. Suppl. Ser. 136, 293 (1999)>
      =1999A&AS..136..293J      (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Positional data

Keywords: astrometry - binaries: visual - stars: individual: Sirius


Abstract:
    A series of photographic observations on the components of Sirius was
    carried out in the years 1976-1986 at the Bosscha Observatory. We
    present the analysis and the results of the measurements.
Objects:
    ----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ----------------------------------------------------------
    06 45 10.8   -16 41 58   Sirius
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        89       54   Individual observational data on Sirius
table2.dat        40       11   Weighted means of observations on Sirius


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label    Explanations

   1-  4  I4    ---       Plate    Plate number
   7- 14  F8.3  yr        Epoch    Epoch of observation
  16- 20  F5.3  arcsec   DRAcosDE  Mean value of {DELTA}αcosδ
  22- 24  I3    mas    e_DRAcosDE  Mean error of DRAcosDE
  26- 30  F5.3  arcsec    DDE      Mean position of {DELTA}δ
  32- 34  I3    mas       e_DDE    Mean error of DDE
  36- 40  F5.2  deg       PA       Position angle
  42- 44  I3    0.01deg   e_PA     Mean error of position angle
  46- 51  F6.3  arcsec    Sep      Measured separation
  53- 55  I3    mas       e_Sep    Mean error of measured separation
  57- 62  F6.4  ---       Cont     ? Contraction of emulsion
  64- 66  I3    0.0001    e_Cont   ? Mean error of contraction of emulsion
  68- 73  F6.3  arcsec    SepCor   ? Corrected separation
  75- 77  I3    mas      e_SepCor  ? Mean error of corrected separation
      79  I1    ---       q_PA     ? Weight of position angle
      82  I1    ---      q_SepCor  ? Weight of corrected separation
  85- 86  I2    ---       Nimages  Number of images
  88- 89  A2    ---       Obs      Observer


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

   Bytes Format Units   Label       Explanations

   1-  8  F8.3  yr      EpPA        Mean epoch for position angle
  10- 14  F5.2  deg     PA          Mean value of position angle
  16- 17  I2    ---     q_PA        ? Weight of mean value of position angle
  19- 26  F8.3  yr      EpSepCor    Mean epoch for corrected separation
  28- 33  F6.3  arcsec  SepCor      Mean value of corrected separation
  35- 36  I2    ---     q_SepCor    ? Weight of mean value of SepCor
      38  I1    ---     Nplates     Number of plates


Acknowledgements: D.M.D. Jasinta 


References:
    van Albada G.B., 1956, Contr. Bosscha Obs. no. 3
    Van Albada-Van Dien E., 1977A&AS...29..305V
(End)                                         Patricia Bauer [CDS]   14-Jan-1999