Double Star Calculator - Orbit

Orbital Elements for STF2205
WDS: STF2205 WDS ID/Discoverer
P: 600.443 Orbital period (years)
a: 2.58966 Semi-major axis (arcseconds)
i: 54.896 Inclination (degrees)
Ω: 19.079 Longitude of ascending node (degrees)
T: 2030.011 Epoch of periastron passage (year)
e: 0.81961 Eccentricity
ω: 78.875 Longitude of periastron (degrees)
Start-Year: 1724.77845 Year
End-Year: 2325.22155 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2205
Position: 174541.03+174300.7 Epoch-2000 right ascension and declination
WDS-ID: 17457+1743 WDS designation
Discoverer Code: STF2205 Discover designation and components
ADS number: 10769 Aitken Double Star catalog
HD number: 161585 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.37 Magnitude of the primary
V2: 9.59 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF2205



WDS 6th Orbit including measures of STF2205

-- 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 STF2205
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.419    48.03
--------------------------
1724.78    2.819   269.36
1725.78    2.817   269.53
1726.78    2.815   269.70
1727.78    2.814   269.86
1728.78    2.812   270.03
1729.78    2.810   270.20
1730.78    2.808   270.37
1731.78    2.806   270.53
1732.78    2.804   270.70
1733.78    2.803   270.87
1734.78    2.801   271.04
1735.78    2.799   271.21
1736.78    2.797   271.38
1737.78    2.795   271.55
1738.78    2.793   271.72
1739.78    2.791   271.89
1740.78    2.788   272.06
1741.78    2.786   272.23
1742.78    2.784   272.40
1743.78    2.782   272.57
1744.78    2.780   272.74
1745.78    2.778   272.91
1746.78    2.775   273.09
1747.78    2.773   273.26
1748.78    2.771   273.43
1749.78    2.768   273.60
1750.78    2.766   273.78
1751.78    2.764   273.95
1752.78    2.761   274.12
1753.78    2.759   274.30
1754.78    2.756   274.47
1755.78    2.754   274.64
1756.78    2.752   274.82
1757.78    2.749   274.99
1758.78    2.746   275.17
1759.78    2.744   275.35
1760.78    2.741   275.52
1761.78    2.739   275.70
1762.78    2.736   275.88
1763.78    2.733   276.05
1764.78    2.731   276.23
1765.78    2.728   276.41
1766.78    2.725   276.59
1767.78    2.722   276.76
1768.78    2.720   276.94
1769.78    2.717   277.12
1770.78    2.714   277.30
1771.78    2.711   277.48
1772.78    2.708   277.66
1773.78    2.705   277.84
1774.78    2.702   278.03
1775.78    2.699   278.21
1776.78    2.696   278.39
1777.78    2.693   278.57
1778.78    2.690   278.75
1779.78    2.687   278.94
1780.78    2.684   279.12
1781.78    2.681   279.30
1782.78    2.678   279.49
1783.78    2.675   279.67
1784.78    2.671   279.86
1785.78    2.668   280.05
1786.78    2.665   280.23
1787.78    2.662   280.42
1788.78    2.658   280.61
1789.78    2.655   280.79
1790.78    2.652   280.98
1791.78    2.648   281.17
1792.78    2.645   281.36
1793.78    2.642   281.55
1794.78    2.638   281.74
1795.78    2.635   281.93
1796.78    2.631   282.12
1797.78    2.628   282.31
1798.78    2.624   282.50
1799.78    2.621   282.70
1800.78    2.617   282.89
1801.78    2.614   283.08
1802.78    2.610   283.28
1803.78    2.606   283.47
1804.78    2.603   283.67
1805.78    2.599   283.86
1806.78    2.595   284.06
1807.78    2.591   284.26
1808.78    2.588   284.46
1809.78    2.584   284.65
1810.78    2.580   284.85
1811.78    2.576   285.05
1812.78    2.572   285.25
1813.78    2.569   285.45
1814.78    2.565   285.65
1815.78    2.561   285.85
1816.78    2.557   286.06
1817.78    2.553   286.26
1818.78    2.549   286.46
1819.78    2.545   286.67
1820.78    2.541   286.87
1821.78    2.537   287.08
1822.78    2.533   287.28
1823.78    2.529   287.49
1824.78    2.524   287.70
1825.78    2.520   287.91
1826.78    2.516   288.12
1827.78    2.512   288.33
1828.78    2.508   288.54
1829.78    2.503   288.75
1830.78    2.499   288.96
1831.78    2.495   289.17
1832.78    2.490   289.38
1833.78    2.486   289.60
1834.78    2.482   289.81
1835.78    2.477   290.03
1836.78    2.473   290.24
1837.78    2.468   290.46
1838.78    2.464   290.68
1839.78    2.460   290.90
1840.78    2.455   291.12
1841.78    2.450   291.34
1842.78    2.446   291.56
1843.78    2.441   291.78
1844.78    2.437   292.00
1845.78    2.432   292.23
1846.78    2.427   292.45
1847.78    2.423   292.68
1848.78    2.418   292.90
1849.78    2.413   293.13
1850.78    2.409   293.36
1851.78    2.404   293.59
1852.78    2.399   293.82
1853.78    2.394   294.05
1854.78    2.389   294.28
1855.78    2.384   294.51
1856.78    2.379   294.74
1857.78    2.375   294.98
1858.78    2.370   295.21
1859.78    2.365   295.45
1860.78    2.360   295.69
1861.78    2.355   295.93
1862.78    2.350   296.17
1863.78    2.344   296.41
1864.78    2.339   296.65
1865.78    2.334   296.89
1866.78    2.329   297.13
1867.78    2.324   297.38
1868.78    2.319   297.62
1869.78    2.313   297.87
1870.78    2.308   298.12
1871.78    2.303   298.37
1872.78    2.298   298.62
1873.78    2.292   298.87
1874.78    2.287   299.12
1875.78    2.282   299.38
1876.78    2.276   299.63
1877.78    2.271   299.89
1878.78    2.265   300.15
1879.78    2.260   300.41
1880.78    2.254   300.67
1881.78    2.249   300.93
1882.78    2.243   301.19
1883.78    2.237   301.45
1884.78    2.232   301.72
1885.78    2.226   301.99
1886.78    2.220   302.25
1887.78    2.215   302.52
1888.78    2.209   302.79
1889.78    2.203   303.07
1890.78    2.197   303.34
1891.78    2.192   303.61
1892.78    2.186   303.89
1893.78    2.180   304.17
1894.78    2.174   304.45
1895.78    2.168   304.73
1896.78    2.162   305.01
1897.78    2.156   305.30
1898.78    2.150   305.58
1899.78    2.144   305.87
1900.78    2.138   306.16
1901.78    2.131   306.45
1902.78    2.125   306.74
1903.78    2.119   307.04
1904.78    2.113   307.33
1905.78    2.107   307.63
1906.78    2.100   307.93
1907.78    2.094   308.23
1908.78    2.088   308.53
1909.78    2.081   308.84
1910.78    2.075   309.14
1911.78    2.068   309.45
1912.78    2.062   309.76
1913.78    2.055   310.08
1914.78    2.049   310.39
1915.78    2.042   310.71
1916.78    2.035   311.03
1917.78    2.029   311.35
1918.78    2.022   311.67
1919.78    2.015   312.00
1920.78    2.008   312.32
1921.78    2.001   312.65
1922.78    1.995   312.98
1923.78    1.988   313.32
1924.78    1.981   313.66
1925.78    1.974   313.99
1926.78    1.967   314.34
1927.78    1.959   314.68
1928.78    1.952   315.03
1929.78    1.945   315.37
1930.78    1.938   315.73
1931.78    1.931   316.08
1932.78    1.923   316.44
1933.78    1.916   316.80
1934.78    1.908   317.16
1935.78    1.901   317.52
1936.78    1.893   317.89
1937.78    1.886   318.26
1938.78    1.878   318.64
1939.78    1.870   319.01
1940.78    1.863   319.39
1941.78    1.855   319.78
1942.78    1.847   320.16
1943.78    1.839   320.55
1944.78    1.831   320.95
1945.78    1.823   321.34
1946.78    1.815   321.74
1947.78    1.807   322.15
1948.78    1.799   322.56
1949.78    1.790   322.97
1950.78    1.782   323.38
1951.78    1.774   323.80
1952.78    1.765   324.22
1953.78    1.757   324.65
1954.78    1.748   325.08
1955.78    1.739   325.52
1956.78    1.731   325.96
1957.78    1.722   326.40
1958.78    1.713   326.85
1959.78    1.704   327.31
1960.78    1.695   327.77
1961.78    1.685   328.23
1962.78    1.676   328.70
1963.78    1.667   329.17
1964.78    1.657   329.65
1965.78    1.648   330.14
1966.78    1.638   330.63
1967.78    1.628   331.13
1968.78    1.618   331.63
1969.78    1.608   332.14
1970.78    1.598   332.65
1971.78    1.588   333.17
1972.78    1.577   333.70
1973.78    1.567   334.24
1974.78    1.556   334.78
1975.78    1.546   335.33
1976.78    1.535   335.89
1977.78    1.524   336.46
1978.78    1.512   337.03
1979.78    1.501   337.62
1980.78    1.489   338.21
1981.78    1.478   338.81
1982.78    1.466   339.42
1983.78    1.454   340.05
1984.78    1.441   340.68
1985.78    1.429   341.32
1986.78    1.416   341.98
1987.78    1.403   342.64
1988.78    1.390   343.32
1989.78    1.377   344.01
1990.78    1.363   344.72
1991.78    1.349   345.44
1992.78    1.335   346.18
1993.78    1.320   346.93
1994.78    1.305   347.70
1995.78    1.290   348.48
1996.78    1.274   349.29
1997.78    1.258   350.12
1998.78    1.242   350.96
1999.78    1.225   351.83
2000.78    1.208   352.73
2001.78    1.190   353.65
2002.78    1.172   354.60
2003.78    1.153   355.58
2004.78    1.134   356.59
2005.78    1.114   357.64
2006.78    1.093   358.73
2007.78    1.072   359.86
2008.78    1.049     1.04
2009.78    1.026     2.27
2010.78    1.002     3.56
2011.78    0.977     4.91
2012.78    0.951     6.33
2013.78    0.924     7.84
2014.78    0.895     9.44
2015.78    0.865    11.16
2016.78    0.833    12.99
2017.78    0.800    14.98
2018.78    0.764    17.15
2019.78    0.727    19.53
2020.78    0.687    22.18
2021.78    0.646    25.16
2022.78    0.601    28.57
2023.78    0.555    32.55
2024.78    0.506    37.27
2025.78    0.455    43.02
2026.78    0.405    50.20
2027.78    0.356    59.40
2028.78    0.314    71.28
2029.78    0.283    86.29
2030.78    0.271   103.79
2031.78    0.279   121.54
2032.78    0.307   137.12
2033.78    0.349   149.53
2034.78    0.399   159.08
2035.78    0.452   166.44
2036.78    0.506   172.23
2037.78    0.561   176.90
2038.78    0.614   180.75
2039.78    0.665   183.99
2040.78    0.715   186.78
2041.78    0.763   189.20
2042.78    0.810   191.34
2043.78    0.854   193.26
2044.78    0.897   194.98
2045.78    0.939   196.56
2046.78    0.979   198.00
2047.78    1.017   199.33
2048.78    1.054   200.56
2049.78    1.090   201.72
2050.78    1.125   202.80
2051.78    1.158   203.81
2052.78    1.191   204.77
2053.78    1.222   205.68
2054.78    1.253   206.55
2055.78    1.283   207.37
2056.78    1.312   208.16
2057.78    1.340   208.91
2058.78    1.367   209.64
2059.78    1.394   210.33
2060.78    1.420   211.00
2061.78    1.445   211.65
2062.78    1.470   212.27
2063.78    1.494   212.87
2064.78    1.518   213.46
2065.78    1.541   214.02
2066.78    1.563   214.57
2067.78    1.585   215.11
2068.78    1.607   215.63
2069.78    1.628   216.14
2070.78    1.648   216.63
2071.78    1.669   217.11
2072.78    1.688   217.58
2073.78    1.708   218.04
2074.78    1.727   218.49
2075.78    1.746   218.93
2076.78    1.764   219.36
2077.78    1.782   219.78
2078.78    1.799   220.19
2079.78    1.817   220.60
2080.78    1.834   221.00
2081.78    1.851   221.39
2082.78    1.867   221.77
2083.78    1.883   222.15
2084.78    1.899   222.52
2085.78    1.914   222.88
2086.78    1.930   223.24
2087.78    1.945   223.59
2088.78    1.960   223.94
2089.78    1.974   224.28
2090.78    1.988   224.62
2091.78    2.003   224.95
2092.78    2.016   225.28
2093.78    2.030   225.61
2094.78    2.044   225.92
2095.78    2.057   226.24
2096.78    2.070   226.55
2097.78    2.083   226.86
2098.78    2.095   227.16
2099.78    2.108   227.46
2100.78    2.120   227.76
2101.78    2.132   228.05
2102.78    2.144   228.34
2103.78    2.156   228.63
2104.78    2.167   228.91
2105.78    2.179   229.19
2106.78    2.190   229.47
2107.78    2.201   229.74
2108.78    2.212   230.02
2109.78    2.223   230.29
2110.78    2.233   230.55
2111.78    2.244   230.82
2112.78    2.254   231.08
2113.78    2.264   231.34
2114.78    2.274   231.60
2115.78    2.284   231.85
2116.78    2.294   232.10
2117.78    2.303   232.35
2118.78    2.313   232.60
2119.78    2.322   232.85
2120.78    2.331   233.09
2121.78    2.340   233.34
2122.78    2.349   233.58
2123.78    2.358   233.82
2124.78    2.367   234.06
2125.78    2.375   234.29
2126.78    2.384   234.52
2127.78    2.392   234.76
2128.78    2.401   234.99
2129.78    2.409   235.22
2130.78    2.417   235.44
2131.78    2.425   235.67
2132.78    2.433   235.89
2133.78    2.440   236.12
2134.78    2.448   236.34
2135.78    2.455   236.56
2136.78    2.463   236.78
2137.78    2.470   237.00
2138.78    2.477   237.21
2139.78    2.485   237.43
2140.78    2.492   237.64
2141.78    2.498   237.86
2142.78    2.505   238.07
2143.78    2.512   238.28
2144.78    2.519   238.49
2145.78    2.525   238.70
2146.78    2.532   238.90
2147.78    2.538   239.11
2148.78    2.545   239.31
2149.78    2.551   239.52
2150.78    2.557   239.72
2151.78    2.563   239.92
2152.78    2.569   240.12
2153.78    2.575   240.32
2154.78    2.581   240.52
2155.78    2.586   240.72
2156.78    2.592   240.92
2157.78    2.598   241.12
2158.78    2.603   241.31
2159.78    2.609   241.51
2160.78    2.614   241.70
2161.78    2.619   241.90
2162.78    2.624   242.09
2163.78    2.630   242.28
2164.78    2.635   242.47
2165.78    2.640   242.66
2166.78    2.645   242.85
2167.78    2.649   243.04
2168.78    2.654   243.23
2169.78    2.659   243.42
2170.78    2.664   243.60
2171.78    2.668   243.79
2172.78    2.673   243.98
2173.78    2.677   244.16
2174.78    2.682   244.35
2175.78    2.686   244.53
2176.78    2.690   244.71
2177.78    2.694   244.90
2178.78    2.698   245.08
2179.78    2.703   245.26
2180.78    2.707   245.44
2181.78    2.711   245.62
2182.78    2.714   245.80
2183.78    2.718   245.98
2184.78    2.722   246.16
2185.78    2.726   246.34
2186.78    2.729   246.52
2187.78    2.733   246.69
2188.78    2.737   246.87
2189.78    2.740   247.05
2190.78    2.743   247.22
2191.78    2.747   247.40
2192.78    2.750   247.58
2193.78    2.753   247.75
2194.78    2.757   247.92
2195.78    2.760   248.10
2196.78    2.763   248.27
2197.78    2.766   248.45
2198.78    2.769   248.62
2199.78    2.772   248.79
2200.78    2.775   248.96
2201.78    2.778   249.14
2202.78    2.780   249.31
2203.78    2.783   249.48
2204.78    2.786   249.65
2205.78    2.788   249.82
2206.78    2.791   249.99
2207.78    2.794   250.16
2208.78    2.796   250.33
2209.78    2.798   250.50
2210.78    2.801   250.67
2211.78    2.803   250.84
2212.78    2.805   251.00
2213.78    2.808   251.17
2214.78    2.810   251.34
2215.78    2.812   251.51
2216.78    2.814   251.68
2217.78    2.816   251.84
2218.78    2.818   252.01
2219.78    2.820   252.18
2220.78    2.822   252.34
2221.78    2.824   252.51
2222.78    2.826   252.68
2223.78    2.828   252.84
2224.78    2.829   253.01
2225.78    2.831   253.17
2226.78    2.833   253.34
2227.78    2.834   253.50
2228.78    2.836   253.67
2229.78    2.838   253.83
2230.78    2.839   254.00
2231.78    2.840   254.16
2232.78    2.842   254.32
2233.78    2.843   254.49
2234.78    2.845   254.65
2235.78    2.846   254.82
2236.78    2.847   254.98
2237.78    2.848   255.14
2238.78    2.849   255.31
2239.78    2.851   255.47
2240.78    2.852   255.63
2241.78    2.853   255.79
2242.78    2.854   255.96
2243.78    2.855   256.12
2244.78    2.856   256.28
2245.78    2.857   256.45
2246.78    2.857   256.61
2247.78    2.858   256.77
2248.78    2.859   256.93
2249.78    2.860   257.09
2250.78    2.860   257.26
2251.78    2.861   257.42
2252.78    2.862   257.58
2253.78    2.862   257.74
2254.78    2.863   257.90
2255.78    2.863   258.06
2256.78    2.864   258.23
2257.78    2.864   258.39
2258.78    2.865   258.55
2259.78    2.865   258.71
2260.78    2.865   258.87
2261.78    2.866   259.03
2262.78    2.866   259.19
2263.78    2.866   259.36
2264.78    2.866   259.52
2265.78    2.867   259.68
2266.78    2.867   259.84
2267.78    2.867   260.00
2268.78    2.867   260.16
2269.78    2.867   260.32
2270.78    2.867   260.48
2271.78    2.867   260.65
2272.78    2.867   260.81
2273.78    2.867   260.97
2274.78    2.866   261.13
2275.78    2.866   261.29
2276.78    2.866   261.45
2277.78    2.866   261.61
2278.78    2.865   261.77
2279.78    2.865   261.94
2280.78    2.865   262.10
2281.78    2.864   262.26
2282.78    2.864   262.42
2283.78    2.864   262.58
2284.78    2.863   262.74
2285.78    2.863   262.90
2286.78    2.862   263.07
2287.78    2.862   263.23
2288.78    2.861   263.39
2289.78    2.860   263.55
2290.78    2.860   263.71
2291.78    2.859   263.88
2292.78    2.858   264.04
2293.78    2.857   264.20
2294.78    2.857   264.36
2295.78    2.856   264.52
2296.78    2.855   264.69
2297.78    2.854   264.85
2298.78    2.853   265.01
2299.78    2.852   265.17
2300.78    2.851   265.34
2301.78    2.850   265.50
2302.78    2.849   265.66
2303.78    2.848   265.83
2304.78    2.847   265.99
2305.78    2.846   266.15
2306.78    2.845   266.32
2307.78    2.844   266.48
2308.78    2.843   266.65
2309.78    2.841   266.81
2310.78    2.840   266.97
2311.78    2.839   267.14
2312.78    2.837   267.30
2313.78    2.836   267.47
2314.78    2.835   267.63
2315.78    2.833   267.80
2316.78    2.832   267.96
2317.78    2.830   268.13
2318.78    2.829   268.29
2319.78    2.827   268.46
2320.78    2.826   268.62
2321.78    2.824   268.79
2322.78    2.823   268.96
2323.78    2.821   269.12
2324.78    2.820   269.29






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 17:42:45



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