J/AJ/123/1023 Binary star orbits (Seymour+, 2002)
Binary star orbits. II. Preliminary first orbits for 117 systems.
Seymour D.M., Mason B.D., Hartkopf W.I., Wycoff G.L.
<Astron. J. 123, 1023 (2002)>
=2002AJ....123.1023S 2002AJ....123.1023S
ADC_Keywords: Stars, double and multiple
Keywords: binaries: general - binaries: visual
Abstract:
Orbital elements are presented for 117 binary systems with no previous
orbit calculation. For nearly all of these systems, these elements
must be regarded as preliminary, but the ephemerides presented here
should be relatively accurate over the next several decades. Further,
the analysis of these systems should highlight the need for their
continued observation by dedicated programs to improve the veracity of
these elements.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 77 117 Orbital Elements
table2.dat 81 117 Ephemerides
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See also:
I/237 : Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
V/39 : 4th Catalog of Orbits of Visual Binaries (Worley+, 1983)
J/AJ/111/370 : Orbits of 37 close visual systems (Hartkopf+ 1996)
J/A+A/341/121 : Visual binary orbits and masses (Soederhjelm 1999)
J/A+AS/111/229 : CCD measurements of visual binaries (Abad+, 1995)
J/A+AS/107/235 : Photographic observations of visual binaries (Jasinta+, 1994)
J/A+AS/114/487 : Photographic observations of visual binaries (Jasinta+, 1995)
J/A+AS/134/87 : Photographic observations of visual binaries (Jasinta+ 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- WDS WDS designation (J2000)
13- 15 A3 --- DisL Discoverer letter designation
17- 20 I4 --- DisN Discoverer number designation
22- 25 A4 --- Comp Additional system components
27- 33 F7.2 yr Per Orbital period
35- 40 F6.4 arcsec MajAxis Semimajor axis
42- 46 F5.1 deg Inc Orbital inclination
49- 53 F5.1 deg Omega Longitude of nodes
55- 61 F7.2 yr T Time of periastron expressed as a fractional
Besselian year
63- 67 F5.3 --- Eccen Orbital eccentricity
70- 74 F5.1 deg omega Longitude of periastron
77 I1 --- Grade [3/5] Orbit grade (1)
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Note (1): In the Fourth Catalog of Orbits of Visual Binary Stars,
Worley & Heintz (1983, Cat. V/39) assigned grades between 1
("definitive") and 5 ("indeterminate") to the published orbits.
The grades were determined by the quantitative method described in
Hartkopf et al. (2001AJ....122.3472H 2001AJ....122.3472H). This method approximates
objectively the subjective judgments of Worley & Heintz, who, as two
of the three most prolific double star observers of all time, had
personal experience with stars, equipment, and observers that is now
impossible to duplicate.
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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- 11 A11 --- WDS WDS designation (J2000)
13- 15 A3 --- DisL Discoverer letter designation
17- 20 I4 --- DisN Discoverer number designation
22- 25 A4 --- Comp Additional system components
27- 31 F5.1 deg deg02 The 2002.0 predicted position angle (1)
33- 36 F4.2 arcsec rho02 The 2002.0 predicted angular separation
38- 42 F5.1 deg deg04 The 2004.0 predicted position angle (1)
44- 47 F4.2 arcsec rho04 The 2004.0 predicted angular separation
49- 53 F5.1 deg deg06 The 2006.0 predicted position angle (1)
55- 58 F4.2 arcsec rho06 The 2006.0 predicted angular separation
60- 64 F5.1 deg deg08 The 2008.0 predicted position angle (1)
66- 69 F4.2 arcsec rho08 The 2008.0 predicted angular separation
71- 75 F5.1 deg deg10 The 2010.0 predicted position angle (1)
77- 80 F4.2 arcsec rho10 The 2010.0 predicted angular separation
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Note (1): Corrected for precession.
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History:
From electronic version of the journal
References:
Hartkopf et al., Paper I, 1999AJ....117.1023M 1999AJ....117.1023M
Mason et al., Paper III., 2010AJ....140..242M 2010AJ....140..242M
Mason et al., Paper IV., 2010AJ....140..735M 2010AJ....140..735M
Mason et al., Paper V., 2017AJ....154..200M 2017AJ....154..200M
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 25-Apr-2002