Access to Astronomical Catalogues

← Click to display the menu
J/AJ/131/2681          Orbits for three visual binaries        (Tamazian+, 2006)

Orbits and differential photometry for visual binaries A 1529, HU 610, and COU 2031. Tamazian V.S., Docobo J.A. <Astron. J., 131, 2681-2686 (2006)> =2006AJ....131.2681T
ADC_Keywords: Stars, double and multiple ; Binaries, orbits Keywords: astrometry - binaries: visual - stars: individual (HIP 14029, HIP 21454, HIP 22196) Abstract: The first orbit for visual binary A 1529 and improved orbital elements for HU 610 and COU 2031 based on new speckle measurements with the 6m telescope of the Special Astrophysical Observatory (Russia) are presented. On the basis of simultaneously obtained differential photometry data, individual masses and spectral types are roughly estimated. Description: The new speckle observations were carried out in 2004 December with the 6m telescope of the Special Astrophysical Observatory (Russia). Objects: ----------------------------------------------- RA (2000) DE Designation(s) ----------------------------------------------- 03 00 38.0 +47 53 06 A 1529 = ** A 1529 04 36 24.8 +34 12 34 HU 610 = ** HU 610 04 46 26.9 +42 20 55 COU 2031 = ** COU 2031 ----------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 61 78 Measurements and observational residuals refs.dat 152 40 References
See also: I/209 : Catalogue of 2700 double stars (Couteau, 1995) J/A+AS/106/377 : Double star measurements (Couteau+, 1994) J/A+AS/126/1 : Double stars measurements (Gili+ 1997) J/AJ/108/2299 : ICCD speckle obs. of binary stars. XI. (Hartkopf+ 1994) J/AJ/119/3084 : ICCD speckle obs. of binary stars. XXIII. (Hartkopf+, 2000) J/AJ/127/1181 : Binary speckle measurements at Calar Alto (Docobo+, 2004) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Star Star name (1) 10- 18 F9.4 yr Obs.Date Epoch of the observation (YYYY.yyyy) 20- 22 A3 --- V/I [vis int HIP] Type of measurement (2) 24- 28 F5.1 deg theta ? Position angle 30 A1 --- f_theta [bc] Flag on theta (3) 32- 34 I3 mas rho ? Separation 36- 37 I2 --- Ref Astrometric data reference 39- 43 F5.1 deg (O-C)T This paper (O-C)_theta_ residual (4) 44 A1 --- f_(O-C)T [)] Predicted value of (O-C)T (5) 46- 48 I3 mas (O-C)R This paper (O-C)_rho_ residual (4) 49 A1 --- f_(O-C)R [)] Predicted value of (O-C)R (5) 51- 55 F5.1 deg O(O-C)T ? Other orbits (O-C)_theta_ residual (4) 56 A1 --- f_O(O-C)T [)] Predicted value of O(O-C)T (5) 58- 60 I3 mas O(O-C)R ? Other orbits (O-C)_rho_ residual (4) 61 A1 --- f_O(O-C)R [)] Predicted value of O(O-C)R (5)
Note (1): Other relevant data for each star: -------------------------------------------------------------------------- Name magnitude differences Other orbit reference -------------------------------------------------------------------------- A 1529 1.53 ± 0.03 No other orbits HU 610 0.33 ± 0.13 Baize (1961JO.....44..254B) COU 2031 0.92 ± 0.06 Mante (2004, IAU Commission 26, Circ. 152) -------------------------------------------------------------------------- Note (2): Type of measurement, defined as follows: vis = visual; int = interferometric; HIP = from Hipparcos. Note (3): Flag on theta, defined as follows: b = pair unresolved; c = Quadrant changed. Note (4): The weighted rms of the residuals for each star are: --------------------------------------- Name (O-C)T (O-C)R O(O-C)T O(O-C)R --------------------------------------- A 1529 1.6 6.5 --- ---- HU 610 4.5 17.5 6.5 19.9 COU 2031 2.4 5.2 28.8 18.4 COU 2031* 2.5 5.6 5.4 16.9 --------------------------------------- where "*" indicates without the 2004.9907 measurement. Note (5): In case of unresolved observation.
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number 4- 22 A19 --- Bibcode Bibcode 24- 45 A22 --- Aut Author's name 47-152 A106 --- Com Comment
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 17-Aug-2007
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact