Double Star Calculator - Orbit

Orbital Elements for HDS1019AB
WDS: HDS1019AB WDS ID/Discoverer
P: 200.000 Orbital period (years)
a: 0.587 Semi-major axis (arcseconds)
i: 85.1 Inclination (degrees)
Ω: 163.9 Longitude of ascending node (degrees)
T: 2019.420 Epoch of periastron passage (year)
e: 0.979 Eccentricity
ω: 179.1 Longitude of periastron (degrees)
Start-Year: 1925.0 Year
End-Year: 2125.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS1019AB
Position: 071912.43+205736.9 Epoch-2000 right ascension and declination
WDS-ID: 07192+2058 WDS designation
Discoverer Code: HDS1019AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 56762 HD catalog number
Hipparcos number: 35459 Hipparcos catalog number
V1: 8.73 Magnitude of the primary
V2: 12.20 Magnitude of the secondary
Equinox: Equinox
Date: 2021 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2021f Reference

Double Star Orbit for HDS1019AB



WDS 6th Orbit including measures of HDS1019AB

-- 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 HDS1019AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.302   162.10
--------------------------
1925.00    1.159   163.87
1926.00    1.159   163.88
1927.00    1.158   163.88
1928.00    1.156   163.89
1929.00    1.155   163.90
1930.00    1.154   163.91
1931.00    1.152   163.92
1932.00    1.150   163.92
1933.00    1.148   163.93
1934.00    1.146   163.94
1935.00    1.144   163.95
1936.00    1.142   163.96
1937.00    1.139   163.97
1938.00    1.136   163.97
1939.00    1.134   163.98
1940.00    1.131   163.99
1941.00    1.127   164.00
1942.00    1.124   164.01
1943.00    1.121   164.02
1944.00    1.117   164.03
1945.00    1.113   164.03
1946.00    1.109   164.04
1947.00    1.105   164.05
1948.00    1.101   164.06
1949.00    1.096   164.07
1950.00    1.092   164.08
1951.00    1.087   164.09
1952.00    1.082   164.10
1953.00    1.077   164.11
1954.00    1.072   164.12
1955.00    1.066   164.12
1956.00    1.061   164.13
1957.00    1.055   164.14
1958.00    1.049   164.15
1959.00    1.043   164.16
1960.00    1.036   164.17
1961.00    1.030   164.18
1962.00    1.023   164.19
1963.00    1.016   164.20
1964.00    1.009   164.21
1965.00    1.002   164.23
1966.00    0.994   164.24
1967.00    0.987   164.25
1968.00    0.979   164.26
1969.00    0.971   164.27
1970.00    0.962   164.28
1971.00    0.954   164.29
1972.00    0.945   164.30
1973.00    0.936   164.32
1974.00    0.927   164.33
1975.00    0.918   164.34
1976.00    0.908   164.36
1977.00    0.898   164.37
1978.00    0.888   164.38
1979.00    0.878   164.40
1980.00    0.867   164.41
1981.00    0.856   164.42
1982.00    0.845   164.44
1983.00    0.833   164.45
1984.00    0.822   164.47
1985.00    0.810   164.49
1986.00    0.797   164.50
1987.00    0.785   164.52
1988.00    0.772   164.54
1989.00    0.759   164.56
1990.00    0.745   164.58
1991.00    0.731   164.60
1992.00    0.717   164.62
1993.00    0.702   164.64
1994.00    0.687   164.66
1995.00    0.671   164.68
1996.00    0.656   164.71
1997.00    0.639   164.73
1998.00    0.622   164.76
1999.00    0.605   164.79
2000.00    0.587   164.82
2001.00    0.569   164.85
2002.00    0.550   164.89
2003.00    0.530   164.92
2004.00    0.510   164.96
2005.00    0.489   165.01
2006.00    0.467   165.05
2007.00    0.445   165.11
2008.00    0.421   165.16
2009.00    0.397   165.23
2010.00    0.371   165.30
2011.00    0.344   165.39
2012.00    0.315   165.49
2013.00    0.285   165.61
2014.00    0.253   165.76
2015.00    0.218   165.95
2016.00    0.180   166.23
2017.00    0.137   166.66
2018.00    0.087   167.56
2019.00    0.021   172.91
2020.00    0.032   156.83
2021.00    0.093   160.22
2022.00    0.142   161.02
2023.00    0.183   161.44
2024.00    0.221   161.70
2025.00    0.255   161.89
2026.00    0.287   162.04
2027.00    0.317   162.16
2028.00    0.345   162.26
2029.00    0.372   162.34
2030.00    0.397   162.42
2031.00    0.421   162.48
2032.00    0.445   162.54
2033.00    0.467   162.59
2034.00    0.489   162.64
2035.00    0.510   162.68
2036.00    0.530   162.72
2037.00    0.549   162.76
2038.00    0.568   162.79
2039.00    0.586   162.82
2040.00    0.604   162.85
2041.00    0.621   162.88
2042.00    0.638   162.91
2043.00    0.654   162.94
2044.00    0.670   162.96
2045.00    0.686   162.98
2046.00    0.701   163.01
2047.00    0.715   163.03
2048.00    0.730   163.05
2049.00    0.744   163.07
2050.00    0.757   163.09
2051.00    0.770   163.11
2052.00    0.783   163.13
2053.00    0.796   163.14
2054.00    0.808   163.16
2055.00    0.820   163.18
2056.00    0.832   163.19
2057.00    0.843   163.21
2058.00    0.855   163.22
2059.00    0.865   163.24
2060.00    0.876   163.25
2061.00    0.886   163.26
2062.00    0.897   163.28
2063.00    0.906   163.29
2064.00    0.916   163.30
2065.00    0.926   163.32
2066.00    0.935   163.33
2067.00    0.944   163.34
2068.00    0.952   163.35
2069.00    0.961   163.37
2070.00    0.969   163.38
2071.00    0.977   163.39
2072.00    0.985   163.40
2073.00    0.993   163.41
2074.00    1.001   163.42
2075.00    1.008   163.43
2076.00    1.015   163.44
2077.00    1.022   163.45
2078.00    1.029   163.46
2079.00    1.035   163.47
2080.00    1.042   163.48
2081.00    1.048   163.49
2082.00    1.054   163.50
2083.00    1.060   163.51
2084.00    1.065   163.52
2085.00    1.071   163.53
2086.00    1.076   163.54
2087.00    1.081   163.55
2088.00    1.086   163.56
2089.00    1.091   163.57
2090.00    1.095   163.58
2091.00    1.100   163.59
2092.00    1.104   163.60
2093.00    1.108   163.60
2094.00    1.112   163.61
2095.00    1.116   163.62
2096.00    1.120   163.63
2097.00    1.123   163.64
2098.00    1.127   163.65
2099.00    1.130   163.66
2100.00    1.133   163.67
2101.00    1.136   163.67
2102.00    1.138   163.68
2103.00    1.141   163.69
2104.00    1.143   163.70
2105.00    1.146   163.71
2106.00    1.148   163.71
2107.00    1.150   163.72
2108.00    1.152   163.73
2109.00    1.153   163.74
2110.00    1.155   163.75
2111.00    1.156   163.76
2112.00    1.157   163.76
2113.00    1.158   163.77
2114.00    1.159   163.78
2115.00    1.160   163.79
2116.00    1.161   163.80
2117.00    1.161   163.80
2118.00    1.161   163.81
2119.00    1.162   163.82
2120.00    1.162   163.83
2121.00    1.161   163.84
2122.00    1.161   163.84
2123.00    1.161   163.85
2124.00    1.160   163.86






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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 15:56:30



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