Double Star Calculator - Orbit

Orbital Elements for STF3056AB
WDS: STF3056AB WDS ID/Discoverer
P: 545.000 Orbital period (years)
a: 0.623 Semi-major axis (arcseconds)
i: 99.4 Inclination (degrees)
Ω: 136.4 Longitude of ascending node (degrees)
T: 2142.000 Epoch of periastron passage (year)
e: 0.67 Eccentricity
ω: 119.6 Longitude of periastron (degrees)
Start-Year: 1752.5 Year
End-Year: 2297.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF3056AB
Position: 000440.09+341554.7 Epoch-2000 right ascension and declination
WDS-ID: 00047+3416 WDS designation
Discoverer Code: STF3056AB Discover designation and components
ADS number: 32 Aitken Double Star catalog
HD number: 225220 HD catalog number
Hipparcos number: 374 Hipparcos catalog number
V1: 7.72 Magnitude of the primary
V2: 8.08 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Zir2015a Reference

Double Star Orbit for STF3056AB



WDS 6th Orbit including measures of STF3056AB

-- 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 STF3056AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.696   141.15
--------------------------
1752.50    0.182   189.70
1753.50    0.185   188.77
1754.50    0.187   187.87
1755.50    0.190   187.00
1756.50    0.193   186.15
1757.50    0.196   185.33
1758.50    0.198   184.52
1759.50    0.201   183.75
1760.50    0.204   182.99
1761.50    0.207   182.25
1762.50    0.210   181.54
1763.50    0.213   180.84
1764.50    0.216   180.17
1765.50    0.219   179.51
1766.50    0.222   178.87
1767.50    0.225   178.25
1768.50    0.228   177.64
1769.50    0.231   177.05
1770.50    0.234   176.48
1771.50    0.237   175.92
1772.50    0.240   175.37
1773.50    0.244   174.84
1774.50    0.247   174.32
1775.50    0.250   173.82
1776.50    0.253   173.33
1777.50    0.256   172.85
1778.50    0.259   172.38
1779.50    0.263   171.93
1780.50    0.266   171.48
1781.50    0.269   171.04
1782.50    0.272   170.62
1783.50    0.275   170.21
1784.50    0.279   169.80
1785.50    0.282   169.40
1786.50    0.285   169.02
1787.50    0.288   168.64
1788.50    0.291   168.27
1789.50    0.295   167.91
1790.50    0.298   167.55
1791.50    0.301   167.21
1792.50    0.304   166.87
1793.50    0.308   166.53
1794.50    0.311   166.21
1795.50    0.314   165.89
1796.50    0.317   165.58
1797.50    0.320   165.27
1798.50    0.324   164.97
1799.50    0.327   164.68
1800.50    0.330   164.39
1801.50    0.333   164.11
1802.50    0.337   163.83
1803.50    0.340   163.56
1804.50    0.343   163.29
1805.50    0.346   163.03
1806.50    0.349   162.77
1807.50    0.353   162.52
1808.50    0.356   162.27
1809.50    0.359   162.03
1810.50    0.362   161.79
1811.50    0.365   161.56
1812.50    0.368   161.33
1813.50    0.372   161.10
1814.50    0.375   160.88
1815.50    0.378   160.66
1816.50    0.381   160.44
1817.50    0.384   160.23
1818.50    0.387   160.02
1819.50    0.390   159.81
1820.50    0.394   159.61
1821.50    0.397   159.41
1822.50    0.400   159.22
1823.50    0.403   159.02
1824.50    0.406   158.83
1825.50    0.409   158.65
1826.50    0.412   158.46
1827.50    0.415   158.28
1828.50    0.418   158.10
1829.50    0.421   157.93
1830.50    0.424   157.75
1831.50    0.427   157.58
1832.50    0.430   157.41
1833.50    0.433   157.24
1834.50    0.436   157.08
1835.50    0.439   156.92
1836.50    0.442   156.76
1837.50    0.445   156.60
1838.50    0.448   156.44
1839.50    0.451   156.29
1840.50    0.454   156.14
1841.50    0.457   155.99
1842.50    0.460   155.84
1843.50    0.463   155.70
1844.50    0.466   155.55
1845.50    0.469   155.41
1846.50    0.472   155.27
1847.50    0.475   155.13
1848.50    0.477   154.99
1849.50    0.480   154.86
1850.50    0.483   154.72
1851.50    0.486   154.59
1852.50    0.489   154.46
1853.50    0.492   154.33
1854.50    0.494   154.20
1855.50    0.497   154.08
1856.50    0.500   153.95
1857.50    0.503   153.83
1858.50    0.505   153.70
1859.50    0.508   153.58
1860.50    0.511   153.46
1861.50    0.514   153.35
1862.50    0.516   153.23
1863.50    0.519   153.11
1864.50    0.522   153.00
1865.50    0.524   152.88
1866.50    0.527   152.77
1867.50    0.529   152.66
1868.50    0.532   152.55
1869.50    0.535   152.44
1870.50    0.537   152.33
1871.50    0.540   152.22
1872.50    0.542   152.12
1873.50    0.545   152.01
1874.50    0.548   151.91
1875.50    0.550   151.81
1876.50    0.553   151.70
1877.50    0.555   151.60
1878.50    0.558   151.50
1879.50    0.560   151.40
1880.50    0.562   151.30
1881.50    0.565   151.21
1882.50    0.567   151.11
1883.50    0.570   151.01
1884.50    0.572   150.92
1885.50    0.574   150.82
1886.50    0.577   150.73
1887.50    0.579   150.64
1888.50    0.582   150.54
1889.50    0.584   150.45
1890.50    0.586   150.36
1891.50    0.588   150.27
1892.50    0.591   150.18
1893.50    0.593   150.09
1894.50    0.595   150.01
1895.50    0.597   149.92
1896.50    0.600   149.83
1897.50    0.602   149.74
1898.50    0.604   149.66
1899.50    0.606   149.57
1900.50    0.608   149.49
1901.50    0.610   149.41
1902.50    0.613   149.32
1903.50    0.615   149.24
1904.50    0.617   149.16
1905.50    0.619   149.08
1906.50    0.621   149.00
1907.50    0.623   148.92
1908.50    0.625   148.84
1909.50    0.627   148.76
1910.50    0.629   148.68
1911.50    0.631   148.60
1912.50    0.633   148.52
1913.50    0.635   148.44
1914.50    0.637   148.37
1915.50    0.638   148.29
1916.50    0.640   148.21
1917.50    0.642   148.14
1918.50    0.644   148.06
1919.50    0.646   147.99
1920.50    0.648   147.91
1921.50    0.649   147.84
1922.50    0.651   147.77
1923.50    0.653   147.69
1924.50    0.655   147.62
1925.50    0.656   147.55
1926.50    0.658   147.48
1927.50    0.660   147.41
1928.50    0.661   147.33
1929.50    0.663   147.26
1930.50    0.664   147.19
1931.50    0.666   147.12
1932.50    0.668   147.05
1933.50    0.669   146.98
1934.50    0.671   146.91
1935.50    0.672   146.84
1936.50    0.674   146.78
1937.50    0.675   146.71
1938.50    0.676   146.64
1939.50    0.678   146.57
1940.50    0.679   146.50
1941.50    0.681   146.44
1942.50    0.682   146.37
1943.50    0.683   146.30
1944.50    0.685   146.24
1945.50    0.686   146.17
1946.50    0.687   146.10
1947.50    0.688   146.04
1948.50    0.690   145.97
1949.50    0.691   145.91
1950.50    0.692   145.84
1951.50    0.693   145.78
1952.50    0.694   145.71
1953.50    0.695   145.65
1954.50    0.696   145.58
1955.50    0.697   145.52
1956.50    0.698   145.46
1957.50    0.699   145.39
1958.50    0.700   145.33
1959.50    0.701   145.27
1960.50    0.702   145.20
1961.50    0.703   145.14
1962.50    0.704   145.08
1963.50    0.705   145.02
1964.50    0.706   144.95
1965.50    0.706   144.89
1966.50    0.707   144.83
1967.50    0.708   144.77
1968.50    0.709   144.70
1969.50    0.709   144.64
1970.50    0.710   144.58
1971.50    0.711   144.52
1972.50    0.711   144.46
1973.50    0.712   144.40
1974.50    0.712   144.33
1975.50    0.713   144.27
1976.50    0.714   144.21
1977.50    0.714   144.15
1978.50    0.714   144.09
1979.50    0.715   144.03
1980.50    0.715   143.97
1981.50    0.716   143.91
1982.50    0.716   143.85
1983.50    0.716   143.79
1984.50    0.716   143.73
1985.50    0.717   143.67
1986.50    0.717   143.61
1987.50    0.717   143.54
1988.50    0.717   143.48
1989.50    0.717   143.42
1990.50    0.717   143.36
1991.50    0.718   143.30
1992.50    0.718   143.24
1993.50    0.718   143.18
1994.50    0.717   143.12
1995.50    0.717   143.06
1996.50    0.717   143.00
1997.50    0.717   142.94
1998.50    0.717   142.88
1999.50    0.717   142.82
2000.50    0.716   142.76
2001.50    0.716   142.70
2002.50    0.716   142.64
2003.50    0.716   142.58
2004.50    0.715   142.52
2005.50    0.715   142.46
2006.50    0.714   142.39
2007.50    0.714   142.33
2008.50    0.713   142.27
2009.50    0.713   142.21
2010.50    0.712   142.15
2011.50    0.711   142.09
2012.50    0.711   142.03
2013.50    0.710   141.97
2014.50    0.709   141.90
2015.50    0.708   141.84
2016.50    0.707   141.78
2017.50    0.707   141.72
2018.50    0.706   141.66
2019.50    0.705   141.59
2020.50    0.704   141.53
2021.50    0.703   141.47
2022.50    0.701   141.40
2023.50    0.700   141.34
2024.50    0.699   141.28
2025.50    0.698   141.21
2026.50    0.696   141.15
2027.50    0.695   141.09
2028.50    0.694   141.02
2029.50    0.692   140.96
2030.50    0.691   140.89
2031.50    0.689   140.83
2032.50    0.688   140.76
2033.50    0.686   140.69
2034.50    0.684   140.63
2035.50    0.683   140.56
2036.50    0.681   140.50
2037.50    0.679   140.43
2038.50    0.677   140.36
2039.50    0.675   140.29
2040.50    0.673   140.22
2041.50    0.671   140.16
2042.50    0.669   140.09
2043.50    0.667   140.02
2044.50    0.665   139.95
2045.50    0.662   139.88
2046.50    0.660   139.80
2047.50    0.658   139.73
2048.50    0.655   139.66
2049.50    0.653   139.59
2050.50    0.650   139.51
2051.50    0.647   139.44
2052.50    0.645   139.37
2053.50    0.642   139.29
2054.50    0.639   139.22
2055.50    0.636   139.14
2056.50    0.633   139.06
2057.50    0.630   138.98
2058.50    0.627   138.90
2059.50    0.624   138.83
2060.50    0.620   138.75
2061.50    0.617   138.66
2062.50    0.614   138.58
2063.50    0.610   138.50
2064.50    0.606   138.41
2065.50    0.603   138.33
2066.50    0.599   138.24
2067.50    0.595   138.16
2068.50    0.591   138.07
2069.50    0.587   137.98
2070.50    0.583   137.89
2071.50    0.579   137.80
2072.50    0.575   137.70
2073.50    0.570   137.61
2074.50    0.566   137.51
2075.50    0.561   137.41
2076.50    0.557   137.31
2077.50    0.552   137.21
2078.50    0.547   137.11
2079.50    0.542   137.00
2080.50    0.537   136.90
2081.50    0.532   136.79
2082.50    0.526   136.68
2083.50    0.521   136.56
2084.50    0.515   136.45
2085.50    0.510   136.33
2086.50    0.504   136.21
2087.50    0.498   136.09
2088.50    0.492   135.96
2089.50    0.486   135.83
2090.50    0.480   135.70
2091.50    0.473   135.56
2092.50    0.467   135.42
2093.50    0.460   135.27
2094.50    0.453   135.12
2095.50    0.446   134.97
2096.50    0.439   134.81
2097.50    0.432   134.65
2098.50    0.424   134.48
2099.50    0.417   134.30
2100.50    0.409   134.12
2101.50    0.401   133.93
2102.50    0.393   133.73
2103.50    0.384   133.53
2104.50    0.376   133.31
2105.50    0.367   133.09
2106.50    0.358   132.85
2107.50    0.349   132.60
2108.50    0.340   132.34
2109.50    0.330   132.06
2110.50    0.321   131.77
2111.50    0.311   131.46
2112.50    0.301   131.13
2113.50    0.290   130.77
2114.50    0.280   130.39
2115.50    0.269   129.97
2116.50    0.258   129.52
2117.50    0.246   129.03
2118.50    0.235   128.50
2119.50    0.223   127.90
2120.50    0.211   127.24
2121.50    0.199   126.50
2122.50    0.186   125.66
2123.50    0.173   124.69
2124.50    0.160   123.58
2125.50    0.147   122.26
2126.50    0.134   120.68
2127.50    0.120   118.75
2128.50    0.107   116.33
2129.50    0.093   113.21
2130.50    0.080   109.04
2131.50    0.067   103.22
2132.50    0.055    94.72
2133.50    0.044    81.84
2134.50    0.037    62.71
2135.50    0.036    38.57
2136.50    0.040    16.23
2137.50    0.049     0.20
2138.50    0.060   349.64
2139.50    0.073   342.55
2140.50    0.086   337.58
2141.50    0.099   333.92
2142.50    0.112   331.13
2143.50    0.125   328.92
2144.50    0.138   327.11
2145.50    0.150   325.61
2146.50    0.162   324.33
2147.50    0.173   323.22
2148.50    0.184   322.25
2149.50    0.194   321.38
2150.50    0.204   320.59
2151.50    0.213   319.88
2152.50    0.222   319.22
2153.50    0.230   318.61
2154.50    0.237   318.04
2155.50    0.244   317.50
2156.50    0.251   316.99
2157.50    0.257   316.51
2158.50    0.262   316.05
2159.50    0.267   315.60
2160.50    0.272   315.18
2161.50    0.276   314.76
2162.50    0.280   314.36
2163.50    0.283   313.97
2164.50    0.286   313.59
2165.50    0.289   313.21
2166.50    0.292   312.84
2167.50    0.294   312.48
2168.50    0.296   312.12
2169.50    0.297   311.77
2170.50    0.299   311.42
2171.50    0.300   311.07
2172.50    0.301   310.73
2173.50    0.301   310.39
2174.50    0.302   310.04
2175.50    0.302   309.70
2176.50    0.302   309.36
2177.50    0.302   309.02
2178.50    0.302   308.68
2179.50    0.302   308.34
2180.50    0.301   308.00
2181.50    0.301   307.66
2182.50    0.300   307.31
2183.50    0.299   306.96
2184.50    0.298   306.61
2185.50    0.297   306.26
2186.50    0.295   305.91
2187.50    0.294   305.55
2188.50    0.293   305.19
2189.50    0.291   304.82
2190.50    0.289   304.45
2191.50    0.288   304.08
2192.50    0.286   303.70
2193.50    0.284   303.32
2194.50    0.282   302.93
2195.50    0.280   302.54
2196.50    0.278   302.14
2197.50    0.276   301.73
2198.50    0.274   301.32
2199.50    0.272   300.90
2200.50    0.269   300.48
2201.50    0.267   300.05
2202.50    0.265   299.61
2203.50    0.262   299.16
2204.50    0.260   298.70
2205.50    0.257   298.24
2206.50    0.255   297.76
2207.50    0.252   297.28
2208.50    0.250   296.78
2209.50    0.247   296.28
2210.50    0.244   295.77
2211.50    0.242   295.24
2212.50    0.239   294.70
2213.50    0.236   294.15
2214.50    0.234   293.59
2215.50    0.231   293.01
2216.50    0.228   292.43
2217.50    0.226   291.82
2218.50    0.223   291.20
2219.50    0.220   290.57
2220.50    0.217   289.92
2221.50    0.215   289.26
2222.50    0.212   288.57
2223.50    0.209   287.87
2224.50    0.207   287.15
2225.50    0.204   286.42
2226.50    0.201   285.66
2227.50    0.198   284.88
2228.50    0.196   284.08
2229.50    0.193   283.26
2230.50    0.191   282.41
2231.50    0.188   281.54
2232.50    0.185   280.65
2233.50    0.183   279.73
2234.50    0.180   278.79
2235.50    0.178   277.82
2236.50    0.175   276.82
2237.50    0.173   275.80
2238.50    0.170   274.74
2239.50    0.168   273.66
2240.50    0.166   272.54
2241.50    0.164   271.39
2242.50    0.161   270.22
2243.50    0.159   269.01
2244.50    0.157   267.77
2245.50    0.155   266.49
2246.50    0.153   265.18
2247.50    0.151   263.84
2248.50    0.150   262.47
2249.50    0.148   261.06
2250.50    0.146   259.63
2251.50    0.145   258.16
2252.50    0.143   256.65
2253.50    0.142   255.12
2254.50    0.140   253.56
2255.50    0.139   251.97
2256.50    0.138   250.36
2257.50    0.137   248.72
2258.50    0.136   247.05
2259.50    0.136   245.37
2260.50    0.135   243.67
2261.50    0.134   241.95
2262.50    0.134   240.22
2263.50    0.133   238.48
2264.50    0.133   236.73
2265.50    0.133   234.98
2266.50    0.133   233.23
2267.50    0.133   231.48
2268.50    0.134   229.73
2269.50    0.134   227.99
2270.50    0.134   226.26
2271.50    0.135   224.55
2272.50    0.136   222.85
2273.50    0.136   221.17
2274.50    0.137   219.51
2275.50    0.138   217.88
2276.50    0.140   216.27
2277.50    0.141   214.69
2278.50    0.142   213.13
2279.50    0.144   211.61
2280.50    0.145   210.11
2281.50    0.147   208.65
2282.50    0.148   207.22
2283.50    0.150   205.83
2284.50    0.152   204.46
2285.50    0.154   203.13
2286.50    0.156   201.84
2287.50    0.158   200.58
2288.50    0.160   199.35
2289.50    0.162   198.15
2290.50    0.165   196.99
2291.50    0.167   195.85
2292.50    0.169   194.75
2293.50    0.172   193.68
2294.50    0.174   192.64
2295.50    0.177   191.63
2296.50    0.179   190.65






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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 14:34:45



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