Double Star Calculator - Orbit

Orbital Elements for STT216
WDS: STT216 WDS ID/Discoverer
P: 314.930 Orbital period (years)
a: 1.84 Semi-major axis (arcseconds)
i: 144.6 Inclination (degrees)
Ω: 53.3 Longitude of ascending node (degrees)
T: 1941.240 Epoch of periastron passage (year)
e: 0.544 Eccentricity
ω: 42.1 Longitude of periastron (degrees)
Start-Year: 1867.535 Year
End-Year: 2182.465 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT216
Position: 102243.81+152039.7 Epoch-2000 right ascension and declination
WDS-ID: 10227+1521 WDS designation
Discoverer Code: STT216 Discover designation and components
ADS number: 7744 Aitken Double Star catalog
HD number: 89906 HD catalog number
Hipparcos number: 50829 Hipparcos catalog number
V1: 7.38 Magnitude of the primary
V2: 10.28 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 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: Sca2009c Reference

Double Star Orbit for STT216



WDS 6th Orbit including measures of STT216

-- 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 STT216
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.381   225.52
--------------------------
1867.54    1.828   153.45
1868.54    1.814   152.65
1869.54    1.800   151.84
1870.54    1.786   151.01
1871.54    1.771   150.18
1872.54    1.757   149.33
1873.54    1.743   148.46
1874.54    1.729   147.58
1875.54    1.715   146.69
1876.54    1.700   145.78
1877.54    1.686   144.86
1878.54    1.672   143.92
1879.54    1.657   142.97
1880.54    1.643   141.99
1881.54    1.628   141.00
1882.54    1.614   140.00
1883.54    1.599   138.97
1884.54    1.585   137.93
1885.54    1.571   136.86
1886.54    1.556   135.78
1887.54    1.542   134.68
1888.54    1.527   133.55
1889.54    1.513   132.41
1890.54    1.498   131.24
1891.54    1.484   130.05
1892.54    1.470   128.84
1893.54    1.455   127.60
1894.54    1.441   126.34
1895.54    1.427   125.05
1896.54    1.413   123.74
1897.54    1.398   122.40
1898.54    1.384   121.03
1899.54    1.370   119.63
1900.54    1.356   118.21
1901.54    1.342   116.75
1902.54    1.328   115.27
1903.54    1.315   113.75
1904.54    1.301   112.21
1905.54    1.287   110.63
1906.54    1.273   109.01
1907.54    1.260   107.36
1908.54    1.246   105.67
1909.54    1.233   103.95
1910.54    1.219   102.19
1911.54    1.206   100.39
1912.54    1.192    98.55
1913.54    1.179    96.66
1914.54    1.165    94.74
1915.54    1.152    92.77
1916.54    1.139    90.75
1917.54    1.125    88.68
1918.54    1.112    86.56
1919.54    1.098    84.40
1920.54    1.084    82.17
1921.54    1.071    79.89
1922.54    1.057    77.55
1923.54    1.043    75.15
1924.54    1.028    72.68
1925.54    1.014    70.14
1926.54    0.999    67.53
1927.54    0.984    64.84
1928.54    0.969    62.07
1929.54    0.954    59.20
1930.54    0.938    56.25
1931.54    0.922    53.19
1932.54    0.906    50.02
1933.54    0.890    46.74
1934.54    0.874    43.34
1935.54    0.858    39.81
1936.54    0.842    36.14
1937.54    0.826    32.33
1938.54    0.810    28.37
1939.54    0.796    24.27
1940.54    0.782    20.01
1941.54    0.770    15.62
1942.54    0.759    11.08
1943.54    0.749     6.42
1944.54    0.742     1.66
1945.54    0.737   356.81
1946.54    0.734   351.91
1947.54    0.734   347.00
1948.54    0.737   342.10
1949.54    0.742   337.25
1950.54    0.750   332.49
1951.54    0.760   327.85
1952.54    0.774   323.34
1953.54    0.789   319.01
1954.54    0.807   314.85
1955.54    0.827   310.88
1956.54    0.848   307.10
1957.54    0.871   303.51
1958.54    0.895   300.12
1959.54    0.921   296.91
1960.54    0.947   293.87
1961.54    0.975   291.01
1962.54    1.003   288.30
1963.54    1.031   285.74
1964.54    1.060   283.31
1965.54    1.089   281.02
1966.54    1.119   278.85
1967.54    1.148   276.79
1968.54    1.178   274.83
1969.54    1.207   272.97
1970.54    1.237   271.20
1971.54    1.266   269.51
1972.54    1.295   267.89
1973.54    1.324   266.35
1974.54    1.353   264.87
1975.54    1.382   263.46
1976.54    1.410   262.10
1977.54    1.438   260.79
1978.54    1.466   259.54
1979.54    1.493   258.33
1980.54    1.520   257.16
1981.54    1.547   256.03
1982.54    1.573   254.95
1983.54    1.599   253.89
1984.54    1.624   252.87
1985.54    1.650   251.89
1986.54    1.674   250.93
1987.54    1.699   250.00
1988.54    1.723   249.09
1989.54    1.747   248.21
1990.54    1.770   247.36
1991.54    1.793   246.52
1992.54    1.816   245.71
1993.54    1.838   244.92
1994.54    1.860   244.14
1995.54    1.881   243.39
1996.54    1.902   242.65
1997.54    1.923   241.92
1998.54    1.943   241.21
1999.54    1.963   240.52
2000.54    1.983   239.84
2001.54    2.003   239.17
2002.54    2.022   238.52
2003.54    2.040   237.88
2004.54    2.059   237.25
2005.54    2.076   236.63
2006.54    2.094   236.02
2007.54    2.111   235.42
2008.54    2.128   234.83
2009.54    2.145   234.25
2010.54    2.161   233.68
2011.54    2.177   233.12
2012.54    2.193   232.57
2013.54    2.208   232.02
2014.54    2.224   231.48
2015.54    2.238   230.95
2016.54    2.253   230.42
2017.54    2.267   229.91
2018.54    2.281   229.39
2019.54    2.294   228.89
2020.54    2.308   228.39
2021.54    2.321   227.89
2022.54    2.333   227.40
2023.54    2.346   226.92
2024.54    2.358   226.44
2025.54    2.370   225.97
2026.54    2.381   225.50
2027.54    2.393   225.03
2028.54    2.404   224.57
2029.54    2.414   224.12
2030.54    2.425   223.67
2031.54    2.435   223.22
2032.54    2.445   222.77
2033.54    2.455   222.33
2034.54    2.464   221.90
2035.54    2.474   221.46
2036.54    2.483   221.03
2037.54    2.491   220.60
2038.54    2.500   220.18
2039.54    2.508   219.75
2040.54    2.516   219.33
2041.54    2.524   218.92
2042.54    2.531   218.50
2043.54    2.538   218.09
2044.54    2.545   217.68
2045.54    2.552   217.27
2046.54    2.559   216.87
2047.54    2.565   216.47
2048.53    2.571   216.06
2049.53    2.577   215.67
2050.53    2.583   215.27
2051.53    2.588   214.87
2052.53    2.593   214.48
2053.53    2.598   214.08
2054.53    2.603   213.69
2055.53    2.608   213.30
2056.53    2.612   212.91
2057.53    2.616   212.53
2058.53    2.620   212.14
2059.53    2.624   211.76
2060.53    2.627   211.37
2061.53    2.631   210.99
2062.53    2.634   210.61
2063.53    2.637   210.23
2064.53    2.639   209.84
2065.53    2.642   209.47
2066.53    2.644   209.09
2067.53    2.646   208.71
2068.53    2.648   208.33
2069.53    2.650   207.95
2070.53    2.651   207.58
2071.53    2.652   207.20
2072.53    2.654   206.82
2073.53    2.654   206.45
2074.53    2.655   206.07
2075.53    2.656   205.70
2076.53    2.656   205.32
2077.53    2.656   204.95
2078.53    2.656   204.57
2079.53    2.656   204.20
2080.53    2.656   203.82
2081.53    2.655   203.45
2082.53    2.654   203.07
2083.53    2.653   202.69
2084.53    2.652   202.32
2085.53    2.651   201.94
2086.53    2.650   201.56
2087.53    2.648   201.19
2088.53    2.646   200.81
2089.53    2.644   200.43
2090.53    2.642   200.05
2091.53    2.640   199.67
2092.53    2.637   199.29
2093.53    2.634   198.91
2094.53    2.632   198.53
2095.53    2.629   198.15
2096.53    2.625   197.76
2097.53    2.622   197.38
2098.53    2.619   196.99
2099.53    2.615   196.61
2100.53    2.611   196.22
2101.53    2.607   195.83
2102.53    2.603   195.44
2103.53    2.599   195.05
2104.53    2.594   194.66
2105.53    2.589   194.26
2106.53    2.585   193.87
2107.53    2.580   193.47
2108.53    2.575   193.07
2109.53    2.569   192.67
2110.53    2.564   192.27
2111.53    2.558   191.87
2112.53    2.553   191.46
2113.53    2.547   191.05
2114.53    2.541   190.64
2115.53    2.535   190.23
2116.53    2.528   189.82
2117.53    2.522   189.40
2118.53    2.515   188.99
2119.53    2.508   188.57
2120.53    2.501   188.15
2121.53    2.494   187.72
2122.53    2.487   187.29
2123.53    2.480   186.87
2124.53    2.472   186.43
2125.53    2.465   186.00
2126.53    2.457   185.56
2127.53    2.449   185.12
2128.53    2.441   184.68
2129.53    2.433   184.23
2130.53    2.424   183.79
2131.53    2.416   183.33
2132.53    2.407   182.88
2133.53    2.398   182.42
2134.53    2.390   181.96
2135.53    2.381   181.49
2136.53    2.371   181.02
2137.53    2.362   180.55
2138.53    2.353   180.07
2139.53    2.343   179.59
2140.53    2.333   179.11
2141.53    2.324   178.62
2142.53    2.314   178.13
2143.53    2.304   177.63
2144.53    2.293   177.13
2145.53    2.283   176.63
2146.53    2.273   176.12
2147.53    2.262   175.60
2148.53    2.252   175.08
2149.53    2.241   174.56
2150.53    2.230   174.03
2151.53    2.219   173.49
2152.53    2.208   172.95
2153.53    2.196   172.41
2154.53    2.185   171.85
2155.53    2.174   171.30
2156.53    2.162   170.73
2157.53    2.150   170.16
2158.53    2.138   169.59
2159.53    2.126   169.01
2160.53    2.114   168.42
2161.53    2.102   167.82
2162.53    2.090   167.22
2163.53    2.078   166.61
2164.53    2.065   165.99
2165.53    2.053   165.37
2166.53    2.040   164.74
2167.53    2.027   164.10
2168.53    2.015   163.45
2169.53    2.002   162.79
2170.53    1.989   162.13
2171.53    1.976   161.45
2172.53    1.962   160.77
2173.53    1.949   160.08
2174.53    1.936   159.38
2175.53    1.922   158.67
2176.53    1.909   157.95
2177.53    1.895   157.21
2178.53    1.882   156.47
2179.53    1.868   155.72
2180.53    1.854   154.96
2181.53    1.840   154.18






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 16:27:14



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