Double Star Calculator - Orbit

Orbital Elements for STT159AB
WDS: STT159AB WDS ID/Discoverer
P: 262.000 Orbital period (years)
a: 1.19 Semi-major axis (arcseconds)
i: 78.0 Inclination (degrees)
Ω: 43.4 Longitude of ascending node (degrees)
T: 1992.680 Epoch of periastron passage (year)
e: 0.74 Eccentricity
ω: 98.0 Longitude of periastron (degrees)
Start-Year: 1894.0 Year
End-Year: 2156.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT159AB
Position: 065716.60+582523.0 Epoch-2000 right ascension and declination
WDS-ID: 06573+5825 WDS designation
Discoverer Code: STT159AB Discover designation and components
ADS number: 5586 Aitken Double Star catalog
HD number: 50522 HD catalog number
Hipparcos number: 33449 Hipparcos catalog number
V1: 4.45 Magnitude of the primary
V2: 5.5 Magnitude of the secondary
Equinox: Equinox
Date: 2000 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Alz2000a Reference

Double Star Orbit for STT159AB



WDS 6th Orbit including measures of STT159AB

-- 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 STT159AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.702   239.91
--------------------------
1894.00    0.731    11.03
1895.00    0.738    11.53
1896.00    0.745    12.02
1897.00    0.752    12.51
1898.00    0.758    12.99
1899.00    0.765    13.46
1900.00    0.771    13.92
1901.00    0.778    14.37
1902.00    0.784    14.82
1903.00    0.791    15.26
1904.00    0.797    15.69
1905.00    0.803    16.11
1906.00    0.810    16.53
1907.00    0.816    16.94
1908.00    0.822    17.35
1909.00    0.828    17.75
1910.00    0.834    18.14
1911.00    0.840    18.53
1912.00    0.845    18.91
1913.00    0.851    19.29
1914.00    0.857    19.67
1915.00    0.862    20.03
1916.00    0.867    20.40
1917.00    0.873    20.76
1918.00    0.878    21.11
1919.00    0.883    21.46
1920.00    0.888    21.81
1921.00    0.892    22.16
1922.00    0.897    22.50
1923.00    0.902    22.83
1924.00    0.906    23.16
1925.00    0.910    23.49
1926.00    0.914    23.82
1927.00    0.918    24.15
1928.00    0.922    24.47
1929.00    0.926    24.79
1930.00    0.929    25.10
1931.00    0.932    25.42
1932.00    0.936    25.73
1933.00    0.939    26.04
1934.00    0.941    26.35
1935.00    0.944    26.65
1936.00    0.946    26.96
1937.00    0.948    27.26
1938.00    0.950    27.56
1939.00    0.952    27.86
1940.00    0.954    28.16
1941.00    0.955    28.46
1942.00    0.956    28.76
1943.00    0.957    29.06
1944.00    0.957    29.35
1945.00    0.957    29.65
1946.00    0.957    29.95
1947.00    0.957    30.24
1948.00    0.956    30.54
1949.00    0.955    30.84
1950.00    0.954    31.14
1951.00    0.952    31.44
1952.00    0.950    31.74
1953.00    0.948    32.04
1954.00    0.945    32.35
1955.00    0.941    32.65
1956.00    0.938    32.96
1957.00    0.934    33.27
1958.00    0.929    33.58
1959.00    0.924    33.90
1960.00    0.918    34.22
1961.00    0.912    34.55
1962.00    0.905    34.88
1963.00    0.898    35.21
1964.00    0.889    35.55
1965.00    0.881    35.90
1966.00    0.871    36.25
1967.00    0.861    36.62
1968.00    0.850    36.99
1969.00    0.837    37.37
1970.00    0.824    37.77
1971.00    0.810    38.17
1972.00    0.795    38.60
1973.00    0.779    39.03
1974.00    0.761    39.49
1975.00    0.742    39.97
1976.00    0.722    40.48
1977.00    0.699    41.02
1978.00    0.675    41.60
1979.00    0.649    42.22
1980.00    0.621    42.89
1981.00    0.591    43.63
1982.00    0.557    44.46
1983.00    0.521    45.39
1984.00    0.482    46.48
1985.00    0.439    47.76
1986.00    0.391    49.35
1987.00    0.340    51.38
1988.00    0.285    54.19
1989.00    0.225    58.42
1990.00    0.163    65.83
1991.00    0.103    82.26
1992.00    0.065   127.35
1993.00    0.091   179.93
1994.00    0.150   200.13
1995.00    0.211   208.73
1996.00    0.270   213.48
1997.00    0.323   216.59
1998.00    0.371   218.85
1999.00    0.414   220.62
2000.00    0.452   222.07
2001.00    0.486   223.31
2002.00    0.515   224.39
2003.00    0.541   225.37
2004.00    0.564   226.26
2005.00    0.585   227.08
2006.00    0.602   227.86
2007.00    0.618   228.59
2008.00    0.632   229.28
2009.00    0.645   229.95
2010.00    0.655   230.59
2011.00    0.665   231.22
2012.00    0.673   231.82
2013.00    0.680   232.42
2014.00    0.686   233.00
2015.00    0.691   233.58
2016.00    0.695   234.14
2017.00    0.699   234.70
2018.00    0.702   235.26
2019.00    0.704   235.81
2020.00    0.705   236.36
2021.00    0.706   236.90
2022.00    0.706   237.45
2023.00    0.706   238.00
2024.00    0.705   238.54
2025.00    0.704   239.09
2026.00    0.703   239.64
2027.00    0.701   240.19
2028.00    0.699   240.75
2029.00    0.697   241.30
2030.00    0.694   241.87
2031.00    0.691   242.43
2032.00    0.687   243.01
2033.00    0.684   243.59
2034.00    0.680   244.17
2035.00    0.676   244.76
2036.00    0.672   245.36
2037.00    0.668   245.97
2038.00    0.663   246.58
2039.00    0.658   247.21
2040.00    0.653   247.84
2041.00    0.648   248.48
2042.00    0.643   249.13
2043.00    0.638   249.80
2044.00    0.633   250.47
2045.00    0.627   251.16
2046.00    0.622   251.85
2047.00    0.616   252.56
2048.00    0.611   253.29
2049.00    0.605   254.02
2050.00    0.599   254.77
2051.00    0.593   255.54
2052.00    0.587   256.32
2053.00    0.582   257.12
2054.00    0.576   257.93
2055.00    0.570   258.76
2056.00    0.564   259.60
2057.00    0.558   260.47
2058.00    0.552   261.35
2059.00    0.546   262.25
2060.00    0.541   263.17
2061.00    0.535   264.12
2062.00    0.529   265.08
2063.00    0.523   266.06
2064.00    0.518   267.06
2065.00    0.512   268.09
2066.00    0.507   269.14
2067.00    0.501   270.21
2068.00    0.496   271.30
2069.00    0.491   272.42
2070.00    0.486   273.56
2071.00    0.481   274.72
2072.00    0.476   275.91
2073.00    0.471   277.13
2074.00    0.467   278.36
2075.00    0.463   279.62
2076.00    0.458   280.91
2077.00    0.454   282.21
2078.00    0.450   283.54
2079.00    0.447   284.90
2080.00    0.443   286.27
2081.00    0.440   287.67
2082.00    0.437   289.08
2083.00    0.434   290.52
2084.00    0.431   291.98
2085.00    0.429   293.45
2086.00    0.426   294.94
2087.00    0.424   296.44
2088.00    0.423   297.96
2089.00    0.421   299.49
2090.00    0.420   301.03
2091.00    0.419   302.58
2092.00    0.418   304.13
2093.00    0.418   305.69
2094.00    0.417   307.25
2095.00    0.417   308.81
2096.00    0.418   310.37
2097.00    0.418   311.93
2098.00    0.419   313.49
2099.00    0.420   315.03
2100.00    0.421   316.57
2101.00    0.423   318.10
2102.00    0.425   319.61
2103.00    0.427   321.11
2104.00    0.429   322.60
2105.00    0.432   324.07
2106.00    0.434   325.52
2107.00    0.437   326.96
2108.00    0.441   328.37
2109.00    0.444   329.76
2110.00    0.448   331.13
2111.00    0.451   332.48
2112.00    0.455   333.80
2113.00    0.460   335.10
2114.00    0.464   336.38
2115.00    0.469   337.63
2116.00    0.473   338.85
2117.00    0.478   340.06
2118.00    0.483   341.23
2119.00    0.488   342.39
2120.00    0.494   343.51
2121.00    0.499   344.62
2122.00    0.505   345.70
2123.00    0.511   346.75
2124.00    0.516   347.78
2125.00    0.522   348.79
2126.00    0.528   349.78
2127.00    0.535   350.74
2128.00    0.541   351.68
2129.00    0.547   352.60
2130.00    0.553   353.50
2131.00    0.560   354.38
2132.00    0.566   355.24
2133.00    0.573   356.08
2134.00    0.580   356.90
2135.00    0.586   357.70
2136.00    0.593   358.48
2137.00    0.600   359.24
2138.00    0.607   359.99
2139.00    0.614     0.72
2140.00    0.621     1.44
2141.00    0.627     2.13
2142.00    0.634     2.82
2143.00    0.641     3.49
2144.00    0.648     4.14
2145.00    0.655     4.78
2146.00    0.662     5.41
2147.00    0.669     6.02
2148.00    0.676     6.62
2149.00    0.683     7.21
2150.00    0.690     7.79
2151.00    0.697     8.36
2152.00    0.704     8.91
2153.00    0.711     9.46
2154.00    0.718     9.99
2155.00    0.725    10.51






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 15:52:51



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