Access to Astronomical Catalogues

J/ApJS/117/587      Observations of double stars.  XVIII. (Heintz 1998)
Observations of double stars. XVIII.
       Heintz W.D.
      <Astrophys. J. Suppl. Ser. 117, 587 (1998)>
      =1998ApJS..117..587H      (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple

Keywords: astrometry - binaries: visual


Abstract:
    Micrometer observations of 1350 pairs in 1995-1997 are listed.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        58     1364   Observations
table2.dat        78       37   Orbits


See also:
            V/39 : 4th Catalog of Orbits of Visual Binaries (Worley+, 1983)
   J/ApJS/74/275 : Observations of double stars. XIV.  (Heintz 1990)
   J/ApJS/83/351 : Observations of double stars. XV.   (Heintz 1992)
   J/ApJS/99/693 : Observations of double stars. XVI.  (Heintz 1995)
  J/ApJS/105/475 : Observations of double stars. XVII. (Heintz 1996)


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

   Bytes Format Units   Label     Explanations

   1-  8  A8    ---     Name      ADS/Name
  10- 11  I2    h       RAh       Right ascension (J2000)
  13- 16  F4.1  min     RAm       Right ascension (J2000)
      18  A1    ---     DE-       Declination sign (J2000)
  19- 20  I2    deg     DEd       Declination (J2000)
  22- 23  I2    arcmin  DEm       Declination (J2000)
  25- 32  F8.3  yr      ObsDate   Observation date
  34- 38  F5.1  deg     PA        Position angle
  40- 43  F4.2  arcsec  Sep       Separation
      45  I1    ---     n_Obs     Number of observations
  47- 50  F4.1  mag     mag1      ? Magnitude of the primary
      51  A1    ---     ---       [-]
  52- 55  F4.1  mag     mag2      ? Magnitude of the secondary
  57- 58  A2    ---     m_Name    Multiplicity index on Name


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

   Bytes Format Units   Label     Explanations

   1-  2  I2    h       RAh       Right ascension (J2000)
   4-  7  F4.1  min     RAm       Right ascension (J2000)
       9  A1    ---     DE-       Declination sign (J2000)
  10- 11  I2    deg     DEd       Declination (J2000)
  13- 14  I2    arcmin  DEm       Declination (J2000)
  16- 23  A8    ---     Name      ADS/Name
  25- 28  F4.1  mag     mag1      ? Magnitude of the primary
      29  A1    ---     ---       [-]
  30- 33  F4.1  mag     mag2      ? Magnitude of the secondary
  35- 40  F6.2  yr      Per       Period
  42- 48  F7.2  yr      T         Time of perihelion passage
  50- 54  F5.3  arcsec  a         Semi-major axis
  56- 60  F5.3  ---     e         Eccentricity
  62- 66  F5.1  deg     i         Inclination angle
  68- 72  F5.1  deg     omega     Longitude of perihelion
  74- 78  F5.1  deg     OMEGA     Longitude of ascending node


Notes:
 Hei 901 = BD +77 932 - The measurements in 1978-1980 ascribed to ADS 6 (Hu 799)
                         belong to this star; the observing chart was in error.
 Hei 903 (07070) - This is near the wide pair BD +1 1692, which may be Bal 1383.

 Observations to be deleted:
 ADS 2630 (in 1987-1995) and ADS 16360 (in 1982), owing to errors in charts.
  I have not relocated the faint pairs then observed.

 Corrected positions:
 Hei 305 = 01260+1315, Hei 437 = 02087+1045, Hei 132 = 07429+6517,
 Hei 58  = 09476+1351, Hei 553 = 17554+1352, Hei 562 = 18449+0253
 (and as reported earlier, Hei 404 = 20225-7112, Hei 287 = 21356+5128).
 ADS 3783 = 05123-0333, ADS 8567 = 12285+7444, Es 2355 = 20359+3331.
 ADS 6193 - First observed by van Biesbroeck. Espin's measurements (catalogued
      as Es 2157) have a declination error of 1deg. and belong to Cou 1887.
 ADS 9497 - My 1994 observation recorded under 9492 belongs to this pair.
 Hei 257 (18055+0312) - The separation in 1992.65 is 1.56 (not 1.09).
 ADS 12279 - My 1987 observation recorded under 12280 belongs to this pair.
 RHW 13 (20425-0233) = BD -3 4990 (not 4991).

History: From ApJS electronic version

(End)                          James Marcout, Patricia Bauer [CDS]  25-Sep-1998