Double Star Calculator - Orbit

Orbital Elements for STF2525AB
WDS: STF2525AB WDS ID/Discoverer
P: 509.909 Orbital period (years)
a: 1.42361 Semi-major axis (arcseconds)
i: 121.628 Inclination (degrees)
Ω: 98.638 Longitude of ascending node (degrees)
T: 1880.026 Epoch of periastron passage (year)
e: 0.88624 Eccentricity
ω: 352.324 Longitude of periastron (degrees)
Start-Year: 1770.0457000000001 Year
End-Year: 2279.9543 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2525AB
Position: 192633.71+271921.9 Epoch-2000 right ascension and declination
WDS-ID: 19266+2719 WDS designation
Discoverer Code: STF2525AB Discover designation and components
ADS number: 12447 Aitken Double Star catalog
HD number: 183032 HD catalog number
Hipparcos number: 95589 Hipparcos catalog number
V1: 8.19 Magnitude of the primary
V2: 8.39 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF2525AB



WDS 6th Orbit including measures of STF2525AB

-- 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 STF2525AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.268   288.62
--------------------------
1770.05    2.061   274.37
1771.05    2.051   274.28
1772.05    2.041   274.20
1773.05    2.031   274.12
1774.05    2.021   274.03
1775.05    2.011   273.95
1776.05    2.001   273.86
1777.05    1.991   273.77
1778.05    1.980   273.69
1779.05    1.970   273.60
1780.05    1.959   273.51
1781.05    1.949   273.41
1782.05    1.938   273.32
1783.05    1.927   273.23
1784.05    1.916   273.14
1785.05    1.905   273.04
1786.05    1.894   272.94
1787.05    1.882   272.85
1788.05    1.871   272.75
1789.05    1.859   272.65
1790.05    1.847   272.55
1791.05    1.836   272.44
1792.05    1.824   272.34
1793.05    1.812   272.24
1794.05    1.800   272.13
1795.05    1.787   272.02
1796.05    1.775   271.91
1797.05    1.762   271.80
1798.05    1.750   271.69
1799.05    1.737   271.57
1800.05    1.724   271.46
1801.05    1.711   271.34
1802.05    1.698   271.22
1803.05    1.684   271.10
1804.05    1.671   270.97
1805.05    1.657   270.85
1806.05    1.643   270.72
1807.05    1.630   270.59
1808.05    1.616   270.46
1809.05    1.601   270.32
1810.05    1.587   270.19
1811.05    1.573   270.05
1812.05    1.558   269.91
1813.05    1.543   269.76
1814.05    1.528   269.61
1815.05    1.513   269.46
1816.05    1.498   269.31
1817.05    1.482   269.15
1818.05    1.467   268.99
1819.05    1.451   268.83
1820.05    1.435   268.66
1821.05    1.419   268.49
1822.05    1.403   268.32
1823.05    1.386   268.14
1824.05    1.370   267.96
1825.05    1.353   267.77
1826.05    1.336   267.58
1827.05    1.318   267.38
1828.05    1.301   267.18
1829.05    1.283   266.97
1830.05    1.265   266.76
1831.05    1.247   266.53
1832.05    1.229   266.31
1833.05    1.210   266.07
1834.05    1.192   265.83
1835.05    1.173   265.58
1836.05    1.153   265.33
1837.05    1.134   265.06
1838.05    1.114   264.79
1839.05    1.094   264.50
1840.05    1.074   264.21
1841.05    1.053   263.90
1842.05    1.033   263.58
1843.05    1.011   263.25
1844.05    0.990   262.90
1845.05    0.968   262.54
1846.05    0.946   262.16
1847.05    0.924   261.76
1848.05    0.901   261.34
1849.05    0.878   260.90
1850.05    0.855   260.44
1851.05    0.831   259.95
1852.05    0.807   259.43
1853.05    0.782   258.88
1854.05    0.758   258.30
1855.05    0.732   257.67
1856.05    0.706   257.00
1857.05    0.680   256.28
1858.05    0.654   255.49
1859.05    0.626   254.64
1860.05    0.599   253.72
1861.05    0.571   252.70
1862.05    0.542   251.58
1863.05    0.513   250.32
1864.05    0.483   248.92
1865.05    0.452   247.33
1866.05    0.421   245.51
1867.05    0.390   243.39
1868.05    0.358   240.90
1869.05    0.326   237.92
1870.05    0.293   234.28
1871.05    0.260   229.72
1872.05    0.228   223.86
1873.05    0.197   216.13
1874.05    0.169   205.68
1875.05    0.146   191.55
1876.05    0.132   173.40
1877.05    0.130   152.88
1878.05    0.138   133.31
1879.05    0.151   116.62
1880.05    0.161   102.41
1881.05    0.164    89.35
1882.05    0.161    76.19
1883.05    0.156    62.28
1884.05    0.154    47.69
1885.05    0.157    33.21
1886.05    0.167    19.88
1887.05    0.182     8.39
1888.05    0.202   358.89
1889.05    0.224   351.17
1890.05    0.248   344.91
1891.05    0.274   339.78
1892.05    0.300   335.54
1893.05    0.326   331.98
1894.05    0.353   328.96
1895.05    0.379   326.36
1896.05    0.406   324.10
1897.05    0.432   322.12
1898.05    0.458   320.37
1899.05    0.484   318.80
1900.05    0.509   317.39
1901.05    0.535   316.11
1902.05    0.560   314.95
1903.05    0.584   313.89
1904.05    0.608   312.91
1905.05    0.632   312.01
1906.05    0.656   311.17
1907.05    0.679   310.39
1908.05    0.702   309.66
1909.05    0.725   308.98
1910.05    0.747   308.34
1911.05    0.770   307.73
1912.05    0.792   307.16
1913.05    0.813   306.62
1914.05    0.835   306.11
1915.05    0.856   305.62
1916.05    0.876   305.16
1917.05    0.897   304.72
1918.05    0.917   304.30
1919.05    0.937   303.89
1920.05    0.957   303.51
1921.05    0.977   303.13
1922.05    0.996   302.78
1923.05    1.016   302.43
1924.05    1.035   302.10
1925.05    1.053   301.78
1926.05    1.072   301.48
1927.05    1.090   301.18
1928.05    1.109   300.89
1929.05    1.127   300.61
1930.05    1.144   300.34
1931.05    1.162   300.08
1932.05    1.179   299.83
1933.05    1.197   299.58
1934.05    1.214   299.34
1935.05    1.231   299.11
1936.05    1.247   298.88
1937.05    1.264   298.66
1938.05    1.280   298.45
1939.05    1.297   298.24
1940.05    1.313   298.03
1941.05    1.329   297.84
1942.05    1.344   297.64
1943.05    1.360   297.45
1944.05    1.375   297.27
1945.05    1.391   297.08
1946.05    1.406   296.91
1947.05    1.421   296.73
1948.05    1.436   296.56
1949.05    1.451   296.39
1950.05    1.465   296.23
1951.05    1.480   296.07
1952.05    1.494   295.91
1953.05    1.508   295.76
1954.05    1.522   295.61
1955.05    1.536   295.46
1956.05    1.550   295.31
1957.05    1.564   295.17
1958.05    1.577   295.03
1959.05    1.591   294.89
1960.05    1.604   294.75
1961.05    1.617   294.62
1962.05    1.630   294.49
1963.05    1.643   294.36
1964.05    1.656   294.23
1965.05    1.669   294.11
1966.05    1.682   293.98
1967.05    1.694   293.86
1968.05    1.706   293.74
1969.05    1.719   293.62
1970.05    1.731   293.50
1971.05    1.743   293.39
1972.05    1.755   293.27
1973.05    1.767   293.16
1974.05    1.779   293.05
1975.05    1.790   292.94
1976.05    1.802   292.84
1977.05    1.813   292.73
1978.05    1.825   292.62
1979.05    1.836   292.52
1980.05    1.847   292.42
1981.05    1.858   292.32
1982.05    1.869   292.22
1983.05    1.880   292.12
1984.05    1.891   292.02
1985.05    1.901   291.92
1986.05    1.912   291.83
1987.05    1.922   291.73
1988.05    1.933   291.64
1989.05    1.943   291.55
1990.05    1.953   291.45
1991.05    1.963   291.36
1992.05    1.973   291.27
1993.05    1.983   291.19
1994.05    1.993   291.10
1995.05    2.003   291.01
1996.05    2.012   290.92
1997.05    2.022   290.84
1998.05    2.032   290.75
1999.05    2.041   290.67
2000.05    2.050   290.59
2001.05    2.060   290.51
2002.05    2.069   290.42
2003.05    2.078   290.34
2004.05    2.087   290.26
2005.05    2.096   290.18
2006.05    2.104   290.10
2007.05    2.113   290.03
2008.05    2.122   289.95
2009.05    2.130   289.87
2010.05    2.139   289.80
2011.05    2.147   289.72
2012.05    2.156   289.64
2013.05    2.164   289.57
2014.05    2.172   289.50
2015.05    2.180   289.42
2016.05    2.188   289.35
2017.05    2.196   289.28
2018.05    2.204   289.21
2019.05    2.212   289.13
2020.05    2.220   289.06
2021.05    2.227   288.99
2022.05    2.235   288.92
2023.05    2.242   288.85
2024.05    2.250   288.79
2025.05    2.257   288.72
2026.05    2.264   288.65
2027.05    2.272   288.58
2028.05    2.279   288.51
2029.05    2.286   288.45
2030.05    2.293   288.38
2031.05    2.300   288.32
2032.05    2.307   288.25
2033.05    2.313   288.18
2034.05    2.320   288.12
2035.05    2.327   288.06
2036.05    2.333   287.99
2037.05    2.340   287.93
2038.05    2.346   287.86
2039.05    2.353   287.80
2040.05    2.359   287.74
2041.05    2.365   287.68
2042.05    2.371   287.61
2043.05    2.377   287.55
2044.05    2.383   287.49
2045.05    2.389   287.43
2046.05    2.395   287.37
2047.05    2.401   287.31
2048.05    2.407   287.25
2049.05    2.412   287.19
2050.05    2.418   287.13
2051.05    2.423   287.07
2052.05    2.429   287.01
2053.05    2.434   286.95
2054.05    2.440   286.89
2055.05    2.445   286.84
2056.05    2.450   286.78
2057.05    2.455   286.72
2058.05    2.460   286.66
2059.05    2.465   286.61
2060.05    2.470   286.55
2061.05    2.475   286.49
2062.05    2.480   286.43
2063.05    2.485   286.38
2064.05    2.490   286.32
2065.05    2.494   286.27
2066.05    2.499   286.21
2067.05    2.503   286.15
2068.05    2.508   286.10
2069.05    2.512   286.04
2070.05    2.516   285.99
2071.05    2.521   285.93
2072.05    2.525   285.88
2073.05    2.529   285.83
2074.05    2.533   285.77
2075.05    2.537   285.72
2076.05    2.541   285.66
2077.05    2.545   285.61
2078.05    2.549   285.56
2079.05    2.553   285.50
2080.05    2.556   285.45
2081.05    2.560   285.40
2082.05    2.564   285.34
2083.05    2.567   285.29
2084.05    2.570   285.24
2085.05    2.574   285.18
2086.05    2.577   285.13
2087.05    2.580   285.08
2088.05    2.584   285.03
2089.05    2.587   284.98
2090.05    2.590   284.92
2091.05    2.593   284.87
2092.05    2.596   284.82
2093.05    2.599   284.77
2094.05    2.602   284.72
2095.05    2.605   284.67
2096.05    2.607   284.62
2097.05    2.610   284.56
2098.05    2.613   284.51
2099.05    2.615   284.46
2100.05    2.618   284.41
2101.05    2.620   284.36
2102.05    2.622   284.31
2103.05    2.625   284.26
2104.05    2.627   284.21
2105.05    2.629   284.16
2106.05    2.631   284.11
2107.05    2.633   284.06
2108.05    2.635   284.01
2109.05    2.637   283.96
2110.05    2.639   283.91
2111.05    2.641   283.86
2112.05    2.643   283.81
2113.05    2.645   283.76
2114.05    2.646   283.71
2115.05    2.648   283.66
2116.05    2.649   283.61
2117.05    2.651   283.56
2118.05    2.652   283.51
2119.05    2.654   283.46
2120.05    2.655   283.41
2121.05    2.656   283.36
2122.05    2.658   283.31
2123.05    2.659   283.27
2124.05    2.660   283.22
2125.05    2.661   283.17
2126.05    2.662   283.12
2127.05    2.663   283.07
2128.05    2.664   283.02
2129.05    2.664   282.97
2130.05    2.665   282.92
2131.05    2.666   282.87
2132.05    2.666   282.82
2133.05    2.667   282.78
2134.05    2.667   282.73
2135.05    2.668   282.68
2136.05    2.668   282.63
2137.05    2.669   282.58
2138.05    2.669   282.53
2139.05    2.669   282.48
2140.05    2.669   282.43
2141.05    2.669   282.38
2142.05    2.669   282.34
2143.05    2.669   282.29
2144.05    2.669   282.24
2145.05    2.669   282.19
2146.05    2.669   282.14
2147.05    2.669   282.09
2148.05    2.668   282.04
2149.05    2.668   281.99
2150.05    2.667   281.95
2151.05    2.667   281.90
2152.05    2.666   281.85
2153.05    2.666   281.80
2154.05    2.665   281.75
2155.05    2.664   281.70
2156.05    2.664   281.65
2157.05    2.663   281.60
2158.05    2.662   281.55
2159.05    2.661   281.51
2160.05    2.660   281.46
2161.05    2.659   281.41
2162.05    2.658   281.36
2163.05    2.656   281.31
2164.05    2.655   281.26
2165.05    2.654   281.21
2166.05    2.652   281.16
2167.05    2.651   281.11
2168.05    2.649   281.06
2169.05    2.648   281.01
2170.05    2.646   280.96
2171.05    2.645   280.91
2172.05    2.643   280.86
2173.05    2.641   280.81
2174.05    2.639   280.76
2175.05    2.637   280.71
2176.05    2.635   280.66
2177.05    2.633   280.61
2178.05    2.631   280.56
2179.05    2.629   280.51
2180.05    2.627   280.46
2181.05    2.624   280.41
2182.05    2.622   280.36
2183.05    2.620   280.31
2184.05    2.617   280.26
2185.05    2.615   280.21
2186.05    2.612   280.16
2187.05    2.609   280.11
2188.05    2.607   280.06
2189.05    2.604   280.01
2190.05    2.601   279.95
2191.05    2.598   279.90
2192.05    2.595   279.85
2193.05    2.592   279.80
2194.05    2.589   279.75
2195.05    2.586   279.70
2196.05    2.583   279.64
2197.05    2.579   279.59
2198.05    2.576   279.54
2199.05    2.573   279.49
2200.05    2.569   279.43
2201.05    2.566   279.38
2202.05    2.562   279.33
2203.05    2.558   279.28
2204.05    2.555   279.22
2205.05    2.551   279.17
2206.05    2.547   279.12
2207.05    2.543   279.06
2208.05    2.539   279.01
2209.05    2.535   278.95
2210.05    2.531   278.90
2211.05    2.527   278.85
2212.05    2.522   278.79
2213.05    2.518   278.74
2214.05    2.514   278.68
2215.05    2.509   278.63
2216.05    2.505   278.57
2217.05    2.500   278.52
2218.05    2.495   278.46
2219.05    2.491   278.40
2220.05    2.486   278.35
2221.05    2.481   278.29
2222.05    2.476   278.23
2223.05    2.471   278.18
2224.05    2.466   278.12
2225.05    2.461   278.06
2226.05    2.455   278.01
2227.05    2.450   277.95
2228.05    2.445   277.89
2229.05    2.439   277.83
2230.05    2.434   277.77
2231.05    2.428   277.71
2232.05    2.423   277.66
2233.05    2.417   277.60
2234.05    2.411   277.54
2235.05    2.405   277.48
2236.05    2.399   277.42
2237.05    2.393   277.36
2238.05    2.387   277.29
2239.05    2.381   277.23
2240.05    2.375   277.17
2241.05    2.369   277.11
2242.05    2.362   277.05
2243.05    2.356   276.99
2244.05    2.349   276.92
2245.05    2.343   276.86
2246.05    2.336   276.80
2247.05    2.329   276.73
2248.05    2.322   276.67
2249.05    2.315   276.60
2250.05    2.308   276.54
2251.05    2.301   276.47
2252.05    2.294   276.41
2253.05    2.287   276.34
2254.05    2.280   276.27
2255.05    2.272   276.21
2256.05    2.265   276.14
2257.05    2.257   276.07
2258.05    2.250   276.00
2259.05    2.242   275.93
2260.05    2.234   275.86
2261.05    2.226   275.80
2262.05    2.218   275.72
2263.05    2.210   275.65
2264.05    2.202   275.58
2265.05    2.194   275.51
2266.05    2.186   275.44
2267.05    2.177   275.36
2268.05    2.169   275.29
2269.05    2.160   275.22
2270.05    2.151   275.14
2271.05    2.143   275.07
2272.05    2.134   274.99
2273.05    2.125   274.91
2274.05    2.116   274.84
2275.05    2.107   274.76
2276.05    2.098   274.68
2277.05    2.088   274.60
2278.05    2.079   274.52
2279.05    2.069   274.44






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 18:04:14



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