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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 58 1364 Observations
table2.dat 78 37 Orbits
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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
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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
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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