Double Star Calculator - Orbit

Orbital Elements for HDS1260AB
WDS: HDS1260AB WDS ID/Discoverer
P: 125.000 Orbital period (years)
a: 0.783 Semi-major axis (arcseconds)
i: 160.0 Inclination (degrees)
Ω: 26.3 Longitude of ascending node (degrees)
T: 2020.050 Epoch of periastron passage (year)
e: 0.292 Eccentricity
ω: 235.0 Longitude of periastron (degrees)
Start-Year: 1962.5 Year
End-Year: 2087.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS1260AB
Position: 084441.00-212548.0 Epoch-2000 right ascension and declination
WDS-ID: 08447-2126 WDS designation
Discoverer Code: HDS1260AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 42910 Hipparcos catalog number
V1: 10.31 Magnitude of the primary
V2: 13.83 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2023c Reference

Double Star Orbit for HDS1260AB



WDS 6th Orbit including measures of HDS1260AB

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of HDS1260AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.542   116.85
--------------------------
1962.50    0.959   324.57
1963.50    0.956   322.84
1964.50    0.953   321.10
1965.50    0.949   319.34
1966.50    0.945   317.57
1967.50    0.941   315.79
1968.50    0.936   313.99
1969.50    0.932   312.17
1970.50    0.927   310.33
1971.50    0.921   308.47
1972.50    0.916   306.59
1973.50    0.911   304.69
1974.50    0.905   302.76
1975.50    0.899   300.81
1976.50    0.893   298.83
1977.50    0.886   296.83
1978.50    0.880   294.79
1979.50    0.873   292.73
1980.50    0.866   290.63
1981.50    0.859   288.50
1982.50    0.852   286.33
1983.50    0.845   284.12
1984.50    0.837   281.88
1985.50    0.830   279.59
1986.50    0.822   277.27
1987.50    0.814   274.89
1988.50    0.806   272.47
1989.50    0.798   270.01
1990.50    0.789   267.49
1991.50    0.781   264.91
1992.50    0.772   262.28
1993.50    0.764   259.59
1994.50    0.755   256.84
1995.50    0.746   254.02
1996.50    0.737   251.14
1997.50    0.728   248.18
1998.50    0.719   245.15
1999.50    0.709   242.04
2000.50    0.700   238.84
2001.50    0.690   235.56
2002.50    0.681   232.18
2003.50    0.671   228.71
2004.50    0.661   225.13
2005.50    0.651   221.45
2006.50    0.641   217.65
2007.50    0.631   213.73
2008.50    0.622   209.68
2009.50    0.612   205.51
2010.50    0.602   201.20
2011.50    0.592   196.75
2012.50    0.583   192.15
2013.50    0.574   187.41
2014.50    0.565   182.52
2015.50    0.558   177.49
2016.50    0.550   172.31
2017.50    0.544   167.01
2018.50    0.538   161.58
2019.50    0.534   156.06
2020.50    0.531   150.46
2021.50    0.529   144.81
2022.50    0.529   139.14
2023.50    0.530   133.48
2024.50    0.533   127.85
2025.50    0.537   122.30
2026.50    0.542   116.85
2027.50    0.549   111.52
2028.50    0.558   106.34
2029.50    0.567   101.33
2030.50    0.578    96.48
2031.50    0.589    91.82
2032.50    0.601    87.34
2033.50    0.614    83.04
2034.50    0.627    78.92
2035.50    0.641    74.98
2036.50    0.655    71.20
2037.50    0.669    67.58
2038.50    0.683    64.11
2039.50    0.697    60.77
2040.50    0.711    57.58
2041.50    0.725    54.50
2042.50    0.739    51.54
2043.50    0.753    48.69
2044.50    0.766    45.94
2045.50    0.779    43.28
2046.50    0.791    40.70
2047.50    0.803    38.20
2048.50    0.815    35.78
2049.50    0.827    33.43
2050.50    0.838    31.14
2051.50    0.848    28.90
2052.50    0.858    26.72
2053.50    0.868    24.59
2054.50    0.877    22.51
2055.50    0.886    20.47
2056.50    0.895    18.47
2057.50    0.903    16.50
2058.50    0.910    14.57
2059.50    0.917    12.67
2060.50    0.924    10.80
2061.50    0.930     8.95
2062.50    0.936     7.13
2063.50    0.941     5.33
2064.50    0.946     3.55
2065.50    0.951     1.78
2066.50    0.955     0.03
2067.50    0.959   358.30
2068.50    0.962   356.58
2069.50    0.965   354.87
2070.50    0.968   353.17
2071.50    0.970   351.48
2072.50    0.972   349.80
2073.50    0.973   348.12
2074.50    0.974   346.44
2075.50    0.975   344.77
2076.50    0.975   343.11
2077.50    0.976   341.44
2078.50    0.975   339.77
2079.50    0.975   338.10
2080.50    0.974   336.43
2081.50    0.973   334.76
2082.50    0.971   333.08
2083.50    0.969   331.39
2084.50    0.967   329.70
2085.50    0.965   328.00
2086.50    0.962   326.29






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This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:10:13



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