Double Star Calculator - Orbit

Orbital Elements for STF412AB
WDS: STF412AB WDS ID/Discoverer
P: 522.160 Orbital period (years)
a: 0.625 Semi-major axis (arcseconds)
i: 157.2 Inclination (degrees)
Ω: 13.0 Longitude of ascending node (degrees)
T: 1911.620 Epoch of periastron passage (year)
e: 0.679 Eccentricity
ω: 238.1 Longitude of periastron (degrees)
Start-Year: 1763.92 Year
End-Year: 2286.08 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF412AB
Position: 033426.62+242752.1 Epoch-2000 right ascension and declination
WDS-ID: 03344+2428 WDS designation
Discoverer Code: STF412AB Discover designation and components
ADS number: 2616 Aitken Double Star catalog
HD number: 22091 HD catalog number
Hipparcos number: 16664 Hipparcos catalog number
V1: 6.60 Magnitude of the primary
V2: 6.86 Magnitude of the secondary
Equinox: 2000 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: Sca2002a Reference

Double Star Orbit for STF412AB



WDS 6th Orbit including measures of STF412AB

-- 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 STF412AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.789   348.10
--------------------------
1763.92    0.835   293.21
1764.92    0.833   292.95
1765.92    0.830   292.69
1766.92    0.828   292.42
1767.92    0.825   292.15
1768.92    0.822   291.89
1769.92    0.820   291.61
1770.92    0.817   291.34
1771.92    0.814   291.07
1772.92    0.812   290.79
1773.92    0.809   290.52
1774.92    0.806   290.24
1775.92    0.803   289.95
1776.92    0.800   289.67
1777.92    0.797   289.39
1778.92    0.795   289.10
1779.92    0.792   288.81
1780.92    0.789   288.52
1781.92    0.786   288.22
1782.92    0.783   287.93
1783.92    0.780   287.63
1784.92    0.777   287.33
1785.92    0.774   287.02
1786.92    0.771   286.72
1787.92    0.767   286.41
1788.92    0.764   286.10
1789.92    0.761   285.78
1790.92    0.758   285.47
1791.92    0.755   285.15
1792.92    0.752   284.83
1793.92    0.748   284.50
1794.92    0.745   284.18
1795.92    0.742   283.85
1796.92    0.738   283.51
1797.92    0.735   283.18
1798.92    0.732   282.84
1799.92    0.728   282.50
1800.92    0.725   282.15
1801.92    0.721   281.80
1802.92    0.718   281.45
1803.92    0.714   281.10
1804.92    0.711   280.74
1805.92    0.707   280.37
1806.92    0.704   280.01
1807.92    0.700   279.64
1808.92    0.696   279.26
1809.92    0.693   278.89
1810.92    0.689   278.50
1811.92    0.685   278.12
1812.92    0.681   277.73
1813.92    0.678   277.33
1814.92    0.674   276.93
1815.92    0.670   276.53
1816.92    0.666   276.12
1817.92    0.662   275.71
1818.92    0.658   275.29
1819.92    0.654   274.87
1820.92    0.650   274.44
1821.92    0.646   274.00
1822.92    0.642   273.56
1823.92    0.638   273.12
1824.92    0.634   272.67
1825.92    0.630   272.21
1826.92    0.626   271.75
1827.92    0.621   271.28
1828.92    0.617   270.81
1829.92    0.613   270.32
1830.92    0.609   269.84
1831.92    0.604   269.34
1832.92    0.600   268.84
1833.92    0.596   268.33
1834.92    0.591   267.81
1835.92    0.587   267.29
1836.92    0.582   266.75
1837.92    0.578   266.21
1838.92    0.573   265.66
1839.92    0.569   265.10
1840.92    0.564   264.53
1841.92    0.560   263.96
1842.92    0.555   263.37
1843.92    0.550   262.77
1844.92    0.545   262.16
1845.92    0.541   261.55
1846.92    0.536   260.92
1847.92    0.531   260.28
1848.92    0.526   259.62
1849.92    0.521   258.96
1850.92    0.516   258.28
1851.92    0.511   257.59
1852.92    0.506   256.89
1853.92    0.501   256.17
1854.92    0.496   255.44
1855.92    0.491   254.69
1856.92    0.486   253.92
1857.92    0.481   253.14
1858.92    0.476   252.35
1859.92    0.470   251.53
1860.92    0.465   250.70
1861.92    0.460   249.85
1862.92    0.454   248.97
1863.92    0.449   248.08
1864.92    0.443   247.16
1865.92    0.438   246.22
1866.92    0.432   245.26
1867.92    0.427   244.28
1868.92    0.421   243.26
1869.92    0.416   242.22
1870.92    0.410   241.15
1871.92    0.404   240.05
1872.92    0.399   238.92
1873.92    0.393   237.76
1874.92    0.387   236.56
1875.92    0.381   235.33
1876.92    0.375   234.05
1877.92    0.369   232.74
1878.92    0.364   231.38
1879.92    0.358   229.98
1880.92    0.352   228.53
1881.92    0.346   227.03
1882.92    0.340   225.48
1883.92    0.333   223.87
1884.92    0.327   222.20
1885.92    0.321   220.46
1886.92    0.315   218.66
1887.92    0.309   216.79
1888.92    0.303   214.84
1889.92    0.297   212.81
1890.92    0.290   210.70
1891.92    0.284   208.49
1892.92    0.278   206.18
1893.92    0.272   203.77
1894.92    0.266   201.25
1895.92    0.260   198.61
1896.92    0.254   195.85
1897.92    0.248   192.95
1898.92    0.242   189.91
1899.92    0.236   186.72
1900.92    0.231   183.37
1901.92    0.225   179.86
1902.92    0.220   176.18
1903.92    0.215   172.32
1904.92    0.210   168.28
1905.92    0.206   164.07
1906.92    0.202   159.68
1907.92    0.198   155.11
1908.92    0.195   150.40
1909.92    0.192   145.54
1910.92    0.190   140.56
1911.92    0.189   135.50
1912.92    0.188   130.38
1913.92    0.188   125.25
1914.92    0.189   120.13
1915.92    0.191   115.07
1916.92    0.193   110.10
1917.92    0.195   105.26
1918.92    0.199   100.57
1919.92    0.203    96.04
1920.92    0.207    91.71
1921.92    0.212    87.57
1922.92    0.218    83.63
1923.92    0.224    79.88
1924.92    0.230    76.33
1925.92    0.236    72.98
1926.92    0.243    69.80
1927.92    0.250    66.79
1928.92    0.257    63.95
1929.92    0.264    61.26
1930.92    0.271    58.72
1931.92    0.279    56.31
1932.92    0.286    54.02
1933.92    0.294    51.86
1934.92    0.301    49.79
1935.92    0.309    47.83
1936.92    0.316    45.97
1937.92    0.324    44.19
1938.92    0.331    42.49
1939.92    0.339    40.87
1940.92    0.346    39.31
1941.92    0.354    37.82
1942.92    0.361    36.40
1943.92    0.368    35.03
1944.92    0.376    33.71
1945.92    0.383    32.44
1946.92    0.390    31.22
1947.92    0.397    30.05
1948.92    0.404    28.91
1949.92    0.411    27.82
1950.92    0.418    26.76
1951.92    0.425    25.73
1952.92    0.432    24.74
1953.92    0.439    23.78
1954.92    0.446    22.85
1955.92    0.452    21.94
1956.92    0.459    21.07
1957.92    0.465    20.21
1958.92    0.472    19.38
1959.92    0.478    18.57
1960.92    0.485    17.79
1961.92    0.491    17.02
1962.92    0.497    16.27
1963.92    0.503    15.54
1964.92    0.509    14.83
1965.92    0.515    14.14
1966.92    0.521    13.46
1967.92    0.527    12.80
1968.92    0.533    12.15
1969.92    0.539    11.51
1970.92    0.545    10.89
1971.92    0.550    10.28
1972.92    0.556     9.69
1973.92    0.561     9.10
1974.92    0.567     8.53
1975.92    0.572     7.97
1976.92    0.578     7.42
1977.92    0.583     6.88
1978.92    0.589     6.35
1979.92    0.594     5.83
1980.92    0.599     5.31
1981.92    0.604     4.81
1982.92    0.609     4.32
1983.92    0.614     3.83
1984.92    0.619     3.35
1985.92    0.624     2.88
1986.92    0.629     2.41
1987.92    0.634     1.96
1988.92    0.639     1.51
1989.92    0.644     1.06
1990.92    0.648     0.63
1991.92    0.653     0.20
1992.92    0.658   359.77
1993.92    0.662   359.35
1994.92    0.667   358.94
1995.92    0.671   358.53
1996.92    0.676   358.13
1997.92    0.680   357.73
1998.92    0.684   357.34
1999.92    0.689   356.96
2000.92    0.693   356.57
2001.92    0.697   356.20
2002.92    0.701   355.82
2003.92    0.706   355.46
2004.92    0.710   355.09
2005.92    0.714   354.73
2006.92    0.718   354.38
2007.92    0.722   354.02
2008.92    0.726   353.68
2009.92    0.730   353.33
2010.92    0.734   352.99
2011.92    0.737   352.66
2012.92    0.741   352.32
2013.92    0.745   351.99
2014.92    0.749   351.67
2015.92    0.752   351.34
2016.92    0.756   351.02
2017.92    0.760   350.70
2018.92    0.763   350.39
2019.92    0.767   350.08
2020.92    0.770   349.77
2021.92    0.774   349.46
2022.92    0.777   349.16
2023.92    0.781   348.86
2024.92    0.784   348.56
2025.92    0.787   348.27
2026.92    0.791   347.97
2027.92    0.794   347.68
2028.92    0.797   347.40
2029.92    0.800   347.11
2030.92    0.804   346.83
2031.92    0.807   346.55
2032.92    0.810   346.27
2033.92    0.813   345.99
2034.92    0.816   345.72
2035.92    0.819   345.44
2036.92    0.822   345.17
2037.92    0.825   344.90
2038.92    0.828   344.64
2039.92    0.831   344.37
2040.92    0.834   344.11
2041.92    0.836   343.85
2042.92    0.839   343.59
2043.92    0.842   343.33
2044.92    0.845   343.07
2045.92    0.847   342.82
2046.92    0.850   342.56
2047.92    0.853   342.31
2048.92    0.855   342.06
2049.92    0.858   341.81
2050.92    0.860   341.57
2051.92    0.863   341.32
2052.92    0.865   341.08
2053.92    0.868   340.84
2054.92    0.870   340.59
2055.92    0.873   340.35
2056.92    0.875   340.12
2057.92    0.878   339.88
2058.92    0.880   339.64
2059.92    0.882   339.41
2060.92    0.884   339.17
2061.92    0.887   338.94
2062.92    0.889   338.71
2063.92    0.891   338.48
2064.92    0.893   338.25
2065.92    0.895   338.02
2066.92    0.898   337.80
2067.92    0.900   337.57
2068.92    0.902   337.35
2069.92    0.904   337.12
2070.92    0.906   336.90
2071.92    0.908   336.68
2072.92    0.910   336.46
2073.92    0.912   336.24
2074.92    0.914   336.02
2075.92    0.916   335.80
2076.92    0.917   335.58
2077.92    0.919   335.37
2078.92    0.921   335.15
2079.92    0.923   334.94
2080.92    0.925   334.72
2081.92    0.926   334.51
2082.92    0.928   334.30
2083.92    0.930   334.09
2084.92    0.931   333.88
2085.92    0.933   333.67
2086.92    0.935   333.46
2087.92    0.936   333.25
2088.92    0.938   333.04
2089.92    0.939   332.84
2090.92    0.941   332.63
2091.92    0.942   332.42
2092.92    0.944   332.22
2093.92    0.945   332.02
2094.92    0.947   331.81
2095.92    0.948   331.61
2096.92    0.950   331.41
2097.92    0.951   331.20
2098.92    0.952   331.00
2099.92    0.954   330.80
2100.92    0.955   330.60
2101.92    0.956   330.40
2102.92    0.957   330.20
2103.92    0.959   330.00
2104.92    0.960   329.81
2105.92    0.961   329.61
2106.92    0.962   329.41
2107.92    0.963   329.22
2108.92    0.964   329.02
2109.92    0.965   328.82
2110.92    0.966   328.63
2111.92    0.967   328.43
2112.92    0.969   328.24
2113.92    0.970   328.04
2114.92    0.970   327.85
2115.92    0.971   327.66
2116.92    0.972   327.46
2117.92    0.973   327.27
2118.92    0.974   327.08
2119.92    0.975   326.89
2120.92    0.976   326.70
2121.92    0.977   326.50
2122.92    0.977   326.31
2123.92    0.978   326.12
2124.92    0.979   325.93
2125.92    0.980   325.74
2126.92    0.980   325.55
2127.92    0.981   325.36
2128.92    0.982   325.17
2129.92    0.982   324.99
2130.92    0.983   324.80
2131.92    0.984   324.61
2132.92    0.984   324.42
2133.92    0.985   324.23
2134.92    0.985   324.04
2135.92    0.986   323.86
2136.92    0.986   323.67
2137.92    0.987   323.48
2138.92    0.987   323.30
2139.92    0.988   323.11
2140.92    0.988   322.92
2141.92    0.989   322.74
2142.92    0.989   322.55
2143.92    0.989   322.36
2144.92    0.990   322.18
2145.92    0.990   321.99
2146.92    0.990   321.80
2147.92    0.991   321.62
2148.92    0.991   321.43
2149.92    0.991   321.25
2150.92    0.991   321.06
2151.92    0.992   320.88
2152.92    0.992   320.69
2153.92    0.992   320.51
2154.92    0.992   320.32
2155.92    0.992   320.14
2156.92    0.992   319.95
2157.92    0.992   319.77
2158.92    0.992   319.58
2159.92    0.992   319.39
2160.92    0.992   319.21
2161.92    0.992   319.02
2162.92    0.992   318.84
2163.92    0.992   318.65
2164.92    0.992   318.47
2165.92    0.992   318.28
2166.92    0.992   318.10
2167.92    0.992   317.91
2168.92    0.992   317.73
2169.92    0.992   317.54
2170.92    0.991   317.36
2171.92    0.991   317.17
2172.92    0.991   316.99
2173.92    0.991   316.80
2174.92    0.990   316.62
2175.92    0.990   316.43
2176.92    0.990   316.24
2177.92    0.989   316.06
2178.92    0.989   315.87
2179.92    0.989   315.68
2180.92    0.988   315.50
2181.92    0.988   315.31
2182.92    0.988   315.12
2183.92    0.987   314.94
2184.92    0.987   314.75
2185.92    0.986   314.56
2186.92    0.986   314.38
2187.92    0.985   314.19
2188.92    0.985   314.00
2189.92    0.984   313.81
2190.92    0.983   313.62
2191.92    0.983   313.43
2192.92    0.982   313.25
2193.92    0.982   313.06
2194.92    0.981   312.87
2195.92    0.980   312.68
2196.92    0.979   312.49
2197.92    0.979   312.30
2198.92    0.978   312.11
2199.92    0.977   311.92
2200.92    0.976   311.73
2201.92    0.976   311.53
2202.92    0.975   311.34
2203.92    0.974   311.15
2204.92    0.973   310.96
2205.92    0.972   310.77
2206.92    0.971   310.57
2207.92    0.970   310.38
2208.92    0.969   310.19
2209.92    0.969   309.99
2210.92    0.968   309.80
2211.92    0.967   309.60
2212.92    0.966   309.41
2213.92    0.964   309.21
2214.92    0.963   309.02
2215.92    0.962   308.82
2216.92    0.961   308.62
2217.92    0.960   308.42
2218.92    0.959   308.23
2219.92    0.958   308.03
2220.92    0.957   307.83
2221.92    0.955   307.63
2222.92    0.954   307.43
2223.92    0.953   307.23
2224.92    0.952   307.03
2225.92    0.950   306.83
2226.92    0.949   306.62
2227.92    0.948   306.42
2228.92    0.946   306.22
2229.92    0.945   306.01
2230.92    0.944   305.81
2231.92    0.942   305.61
2232.92    0.941   305.40
2233.92    0.939   305.19
2234.92    0.938   304.99
2235.92    0.937   304.78
2236.92    0.935   304.57
2237.92    0.933   304.36
2238.92    0.932   304.15
2239.92    0.930   303.94
2240.92    0.929   303.73
2241.92    0.927   303.52
2242.92    0.926   303.31
2243.92    0.924   303.09
2244.92    0.922   302.88
2245.92    0.921   302.67
2246.92    0.919   302.45
2247.92    0.917   302.23
2248.92    0.915   302.02
2249.92    0.914   301.80
2250.92    0.912   301.58
2251.92    0.910   301.36
2252.92    0.908   301.14
2253.92    0.906   300.92
2254.92    0.904   300.70
2255.92    0.903   300.47
2256.92    0.901   300.25
2257.92    0.899   300.02
2258.92    0.897   299.80
2259.92    0.895   299.57
2260.92    0.893   299.34
2261.92    0.891   299.11
2262.92    0.889   298.88
2263.92    0.887   298.65
2264.92    0.885   298.42
2265.92    0.883   298.19
2266.92    0.880   297.95
2267.92    0.878   297.72
2268.92    0.876   297.48
2269.92    0.874   297.24
2270.92    0.872   297.00
2271.92    0.869   296.76
2272.92    0.867   296.52
2273.92    0.865   296.28
2274.92    0.863   296.03
2275.92    0.860   295.79
2276.92    0.858   295.54
2277.92    0.856   295.29
2278.92    0.853   295.04
2279.92    0.851   294.79
2280.92    0.848   294.54
2281.92    0.846   294.28
2282.92    0.843   294.03
2283.92    0.841   293.77
2284.92    0.838   293.51
2285.92    0.836   293.25






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 15:12:27



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