V/39 4th Catalog of Orbits of Visual Binaries (Worley+, 1983)
The Fourth Catalog of Orbits of Visual Binary Stars
Worley C.E., Heintz W.D.
<Publ. U.S. Naval Obs. (2) 24, part VII (1983)>
=1983PUSNO..24g...1W 1983PUSNO..24g...1W (SIMBAD/NED RefCode)
ADC_Keywords: Binaries, orbits ; Stars, double and multiple
Description:
The Finsen-Worley Catalog (1970), supplemented by all subsequently
published orbits known to Worley and Heintz as of 1 July 1982
formed the basis for the present compilation. Practically all
stars having visual orbits were reobserved in the preceding
decade, often repeatedly either with micrometers or with speckle
interferometers. Astrometric solutions are included but only if
they were judged to be relatively certain. Orbits with period
greater than 4000 years and hyperbolic orbits were rejected as
being unreliable. The catalog contains 928 orbits of 847 systems
(counting triples as two systems). There are 23 orbits of
unresolved systems.
The catalog contains for each system the names of the star and
the components involved, the 1900 position, the ADS number, the
magnitude and spectral type for each component, the orbital
elements, the equinox of the node, the quality of the orbit, the
date of the last observation, the inclusive dates for which an
ephemeris is given by the author, the computer of the orbit, and a
reference.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
intro.doc 80 263 Introduction to the Catalogue
catalog.dat 262 933 4th Catalogue of Orbits of Visual Binary Stars
notes.dat 79 612 Notes about flagged orbits
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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2- 3 I2 h RAh Hours RA, 1900.0
5- 8 F4.1 min RAm Minutes RA, 1900.0
11 A1 --- DE- Sign Dec, 1900.0
12- 13 I2 deg DEd Degrees Dec, 1900.0
15- 16 I2 arcmin DEm Minutes Dec, 1900.0
17 A1 --- Note [*] '*' indicates a note in file "notes"
20- 25 A6 --- ADS Aitken's Double Star Catalog (ADS) designation
27- 31 F5.2 mag MagA ? Magnitude of component A
32 A1 --- n_MagA [V] 'V' if MagA is variable
34- 38 F5.2 mag MagB ? Magnitude of component B
39 A1 --- n_MagB [V] 'V' if MagB is variable
42- 50 F9.4 a Period Period of the binary star orbit
51- 57 F7.3 arcsec Axis ? Semi-major axis of the orbit
60- 65 F6.2 deg Incl [0/180] Inclination (i) of the orbit
68- 73 F6.2 deg Omega [0/360[? Position of the Node
74 A1 --- n_Omega [*] '*' if Omega is identified as the
ascending node
78 A1 --- n_Grade [A] 'A' indicates ambiguities (see intro)
79 I1 --- Grade [1/5]? The grade from 1 (definitive) to
5 (indeterminate), see file intro
82- 85 I4 a DateObs ? Date of last observation used in computation
89-132 A44 --- Author Computer of the orbit
133-159 A27 --- Name Common names of the star
160-166 A7 --- SpTypeA Spectral type of component A
167-173 A7 --- SpTypeB Spectral type of component B (1)
175-182 F8.3 a PeriT ? Time of periastron passage
184-189 F6.3 --- Ecc [0/1]? Eccentricity
192-197 F6.2 deg omega [0/360[? Longitude of Peri reckoned from Omega
200-203 I4 a Eqomega ? Equinox of Omega
210-218 A9 --- Ephem Inclusive dates of ephemeris
221-262 A42 --- Ref Text of bibliographic reference
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Note (1): An '*' following this value indicates the spectral types
have been inferred from a combined spectrum and a known
magnitude difference.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- RADec Name based on 1900 position, form "HHMMm+DDMM"
13- 79 A67 --- Note Notes
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References:
Finsen, W.S. and Worley, C.E., 1970, Republic Obser.. Circ. 7, 203
Historical Notes:
* From the "Selected Astronomical Catalogs" Vol. 1 CD-ROM (1992), directory
/combined/binorbit
* 02-Mar-1995: hours of RA (29) in record # 793 corrected
* 23-Sep-1996: aligned record #642 (Gail L. Schneider)
* 16-Oct-1996: corrected the "Note" flag (catalog) and
RADec values (notes) to ensure the correspondance.
(End) Francois Ochsenbein [CDS Catalogues Service] 02-Mar-1995