Double Star Calculator - Orbit

Orbital Elements for HDS601AA,AB
WDS: HDS601AA,AB WDS ID/Discoverer
P: 285.000 Orbital period (years)
a: 1.637 Semi-major axis (arcseconds)
i: 78.6 Inclination (degrees)
Ω: 335.7 Longitude of ascending node (degrees)
T: 1999.800 Epoch of periastron passage (year)
e: 0.19 Eccentricity
ω: 253.0 Longitude of periastron (degrees)
Start-Year: 1882.5 Year
End-Year: 2167.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS601AA,AB
Position: 043942.61+095219.4 Epoch-2000 right ascension and declination
WDS-ID: 04397+0952 WDS designation
Discoverer Code: HDS601AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 286955 HD catalog number
Hipparcos number: 21710 Hipparcos catalog number
V1: 9.36 Magnitude of the primary
V2: 12.77 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: Flags
Ephemerides: Ephemerides
Code: Tok2021b Reference

Double Star Orbit for HDS601AA,AB



WDS 6th Orbit including measures of HDS601AA,AB

-- 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 HDS601AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.771   317.88
--------------------------
1882.50    0.417    90.96
1883.50    0.429    94.63
1884.50    0.443    98.09
1885.50    0.459   101.32
1886.50    0.476   104.33
1887.50    0.493   107.13
1888.50    0.512   109.73
1889.50    0.532   112.14
1890.50    0.552   114.38
1891.50    0.573   116.46
1892.50    0.594   118.39
1893.50    0.616   120.18
1894.50    0.638   121.85
1895.50    0.661   123.41
1896.50    0.684   124.87
1897.50    0.707   126.23
1898.50    0.730   127.50
1899.50    0.753   128.70
1900.50    0.776   129.82
1901.50    0.799   130.88
1902.50    0.823   131.88
1903.50    0.846   132.82
1904.50    0.869   133.72
1905.50    0.892   134.56
1906.50    0.915   135.37
1907.50    0.937   136.14
1908.50    0.960   136.86
1909.50    0.982   137.56
1910.50    1.005   138.23
1911.50    1.027   138.86
1912.50    1.048   139.47
1913.50    1.070   140.06
1914.50    1.091   140.62
1915.50    1.111   141.17
1916.50    1.132   141.69
1917.50    1.152   142.19
1918.50    1.172   142.68
1919.50    1.191   143.15
1920.50    1.210   143.60
1921.50    1.229   144.05
1922.50    1.247   144.47
1923.50    1.265   144.89
1924.50    1.282   145.30
1925.50    1.299   145.69
1926.50    1.315   146.08
1927.50    1.331   146.45
1928.50    1.346   146.82
1929.50    1.361   147.18
1930.50    1.375   147.53
1931.50    1.388   147.87
1932.50    1.401   148.21
1933.50    1.414   148.54
1934.50    1.426   148.87
1935.50    1.437   149.19
1936.50    1.447   149.50
1937.50    1.457   149.82
1938.50    1.466   150.12
1939.50    1.475   150.43
1940.50    1.483   150.73
1941.50    1.490   151.02
1942.50    1.496   151.32
1943.50    1.502   151.61
1944.50    1.507   151.90
1945.50    1.511   152.19
1946.50    1.514   152.48
1947.50    1.517   152.76
1948.50    1.519   153.05
1949.50    1.520   153.33
1950.50    1.520   153.62
1951.50    1.519   153.90
1952.50    1.518   154.19
1953.50    1.515   154.47
1954.50    1.512   154.76
1955.50    1.508   155.05
1956.50    1.502   155.34
1957.50    1.496   155.63
1958.50    1.490   155.92
1959.50    1.482   156.22
1960.50    1.473   156.52
1961.50    1.463   156.83
1962.50    1.453   157.14
1963.50    1.441   157.45
1964.50    1.429   157.77
1965.50    1.415   158.09
1966.50    1.401   158.42
1967.50    1.385   158.76
1968.50    1.369   159.11
1969.50    1.352   159.46
1970.50    1.333   159.83
1971.50    1.314   160.20
1972.50    1.294   160.59
1973.50    1.273   160.99
1974.50    1.251   161.40
1975.50    1.228   161.83
1976.50    1.204   162.27
1977.50    1.180   162.74
1978.50    1.154   163.22
1979.50    1.127   163.72
1980.50    1.100   164.25
1981.50    1.072   164.81
1982.50    1.043   165.40
1983.50    1.014   166.02
1984.50    0.983   166.68
1985.50    0.952   167.38
1986.50    0.920   168.13
1987.50    0.888   168.93
1988.50    0.855   169.80
1989.50    0.821   170.73
1990.50    0.787   171.75
1991.50    0.753   172.86
1992.50    0.718   174.07
1993.50    0.683   175.41
1994.50    0.647   176.90
1995.50    0.612   178.56
1996.50    0.576   180.42
1997.50    0.541   182.53
1998.50    0.506   184.93
1999.50    0.472   187.68
2000.50    0.438   190.86
2001.50    0.406   194.55
2002.50    0.375   198.87
2003.50    0.346   203.93
2004.50    0.321   209.85
2005.50    0.299   216.73
2006.50    0.281   224.57
2007.50    0.269   233.27
2008.50    0.264   242.53
2009.50    0.266   251.93
2010.50    0.274   260.99
2011.50    0.288   269.33
2012.50    0.308   276.75
2013.50    0.332   283.19
2014.50    0.359   288.71
2015.50    0.389   293.43
2016.50    0.420   297.45
2017.50    0.453   300.90
2018.50    0.487   303.88
2019.50    0.522   306.46
2020.50    0.558   308.71
2021.50    0.593   310.70
2022.50    0.629   312.46
2023.50    0.665   314.03
2024.50    0.700   315.44
2025.50    0.736   316.72
2026.50    0.771   317.88
2027.50    0.806   318.93
2028.50    0.841   319.90
2029.50    0.875   320.80
2030.50    0.909   321.62
2031.50    0.942   322.39
2032.50    0.975   323.11
2033.50    1.007   323.77
2034.50    1.038   324.40
2035.50    1.069   324.99
2036.50    1.099   325.55
2037.50    1.129   326.08
2038.50    1.158   326.58
2039.50    1.186   327.06
2040.50    1.214   327.52
2041.50    1.241   327.95
2042.50    1.267   328.37
2043.50    1.292   328.77
2044.50    1.317   329.16
2045.50    1.341   329.53
2046.50    1.364   329.89
2047.50    1.387   330.24
2048.50    1.408   330.57
2049.50    1.429   330.90
2050.50    1.449   331.22
2051.50    1.468   331.53
2052.50    1.487   331.83
2053.50    1.505   332.12
2054.50    1.521   332.41
2055.50    1.538   332.69
2056.50    1.553   332.96
2057.50    1.568   333.23
2058.50    1.581   333.50
2059.50    1.594   333.76
2060.50    1.607   334.02
2061.50    1.618   334.27
2062.50    1.629   334.52
2063.50    1.639   334.76
2064.50    1.648   335.01
2065.50    1.657   335.25
2066.50    1.664   335.49
2067.50    1.671   335.72
2068.50    1.678   335.96
2069.50    1.683   336.19
2070.50    1.688   336.42
2071.50    1.692   336.65
2072.50    1.695   336.88
2073.50    1.698   337.11
2074.50    1.700   337.33
2075.50    1.701   337.56
2076.50    1.702   337.79
2077.50    1.702   338.02
2078.50    1.701   338.24
2079.50    1.700   338.47
2080.50    1.698   338.70
2081.50    1.695   338.93
2082.50    1.691   339.15
2083.50    1.688   339.38
2084.50    1.683   339.62
2085.50    1.678   339.85
2086.50    1.672   340.08
2087.50    1.666   340.32
2088.50    1.659   340.56
2089.50    1.651   340.80
2090.50    1.643   341.04
2091.50    1.634   341.28
2092.50    1.625   341.53
2093.50    1.615   341.78
2094.50    1.605   342.03
2095.50    1.594   342.29
2096.50    1.583   342.55
2097.50    1.571   342.82
2098.50    1.558   343.08
2099.50    1.545   343.36
2100.50    1.532   343.63
2101.50    1.518   343.92
2102.50    1.504   344.20
2103.50    1.489   344.50
2104.50    1.474   344.80
2105.50    1.458   345.10
2106.50    1.442   345.41
2107.50    1.426   345.73
2108.50    1.409   346.06
2109.50    1.392   346.40
2110.50    1.374   346.74
2111.50    1.356   347.09
2112.50    1.337   347.45
2113.50    1.319   347.83
2114.50    1.299   348.21
2115.50    1.280   348.61
2116.50    1.260   349.01
2117.50    1.240   349.43
2118.50    1.220   349.87
2119.50    1.199   350.32
2120.50    1.178   350.78
2121.50    1.156   351.26
2122.50    1.135   351.76
2123.50    1.113   352.28
2124.50    1.091   352.83
2125.50    1.069   353.39
2126.50    1.046   353.98
2127.50    1.024   354.59
2128.50    1.001   355.23
2129.50    0.978   355.90
2130.50    0.955   356.61
2131.50    0.931   357.34
2132.50    0.908   358.12
2133.50    0.885   358.94
2134.50    0.861   359.80
2135.50    0.837     0.71
2136.50    0.814     1.68
2137.50    0.790     2.70
2138.50    0.767     3.78
2139.50    0.743     4.93
2140.50    0.720     6.16
2141.50    0.697     7.47
2142.50    0.674     8.87
2143.50    0.651    10.37
2144.50    0.628    11.98
2145.50    0.606    13.70
2146.50    0.584    15.56
2147.50    0.563    17.55
2148.50    0.542    19.70
2149.50    0.522    22.02
2150.50    0.503    24.52
2151.50    0.485    27.21
2152.50    0.467    30.11
2153.50    0.451    33.23
2154.50    0.436    36.57
2155.50    0.423    40.13
2156.50    0.411    43.91
2157.50    0.401    47.90
2158.50    0.393    52.07
2159.50    0.387    56.39
2160.50    0.383    60.83
2161.50    0.381    65.34
2162.50    0.382    69.86
2163.50    0.385    74.34
2164.50    0.389    78.73
2165.50    0.397    82.98
2166.50    0.406    87.07






Disclaimer
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 15:28:28



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