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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:37:09
WDS:
STF2026AB
WDS ID/Discoverer
P:
433.791
Orbital period (years)
a:
2.38112
Semi-major axis (arcseconds)
i:
132.719
Inclination (degrees)
Ω:
13.026
Longitude of ascending node (degrees)
T:
1907.151
Epoch of periastron passage (year)
e:
0.80696
Eccentricity
ω:
193.054
Longitude of periastron (degrees)
Start-Year:
1809.0
Year
End-Year:
2241.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
161557.07+072124.8
Epoch-2000 right ascension and declination
WDS-ID:
16160+0721
WDS designation
Discoverer Code:
STF2026AB
Discover designation and components
ADS number:
9982
Aitken Double Star catalog
HD number:
146413
HD catalog number
Hipparcos number:
79702
Hipparcos catalog number
V1:
9.48
Magnitude of the primary
V2:
9.86
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 3.666 15.4
-------------------------
1809.0 3.075 348.5
1810.0 3.056 348.3
1811.0 3.036 348.0
1812.0 3.016 347.8
1813.0 2.996 347.6
1814.0 2.976 347.4
1815.0 2.956 347.2
1816.0 2.935 347.0
1817.0 2.914 346.8
1818.0 2.894 346.5
1819.0 2.872 346.3
1820.0 2.851 346.1
1821.0 2.829 345.9
1822.0 2.808 345.6
1823.0 2.786 345.4
1824.0 2.763 345.1
1825.0 2.741 344.9
1826.0 2.718 344.6
1827.0 2.696 344.4
1828.0 2.673 344.1
1829.0 2.649 343.8
1830.0 2.626 343.6
1831.0 2.602 343.3
1832.0 2.578 343.0
1833.0 2.554 342.7
1834.0 2.530 342.4
1835.0 2.505 342.1
1836.0 2.480 341.8
1837.0 2.455 341.5
1838.0 2.430 341.2
1839.0 2.404 340.9
1840.0 2.378 340.6
1841.0 2.352 340.2
1842.0 2.326 339.9
1843.0 2.299 339.5
1844.0 2.273 339.2
1845.0 2.246 338.8
1846.0 2.218 338.4
1847.0 2.191 338.0
1848.0 2.163 337.6
1849.0 2.135 337.2
1850.0 2.107 336.8
1851.0 2.078 336.4
1852.0 2.049 335.9
1853.0 2.020 335.5
1854.0 1.990 335.0
1855.0 1.961 334.5
1856.0 1.931 334.0
1857.0 1.901 333.5
1858.0 1.870 333.0
1859.0 1.839 332.4
1860.0 1.808 331.9
1861.0 1.777 331.3
1862.0 1.745 330.7
1863.0 1.713 330.0
1864.0 1.681 329.4
1865.0 1.648 328.7
1866.0 1.616 328.0
1867.0 1.583 327.3
1868.0 1.549 326.5
1869.0 1.516 325.7
1870.0 1.482 324.8
1871.0 1.447 324.0
1872.0 1.413 323.0
1873.0 1.378 322.1
1874.0 1.343 321.1
1875.0 1.308 320.0
1876.0 1.272 318.9
1877.0 1.237 317.7
1878.0 1.201 316.4
1879.0 1.165 315.0
1880.0 1.129 313.6
1881.0 1.092 312.1
1882.0 1.056 310.4
1883.0 1.019 308.7
1884.0 0.983 306.8
1885.0 0.947 304.8
1886.0 0.910 302.6
1887.0 0.875 300.2
1888.0 0.839 297.7
1889.0 0.804 294.9
1890.0 0.770 291.8
1891.0 0.736 288.5
1892.0 0.704 284.8
1893.0 0.673 280.9
1894.0 0.643 276.5
1895.0 0.616 271.7
1896.0 0.590 266.6
1897.0 0.568 260.9
1898.0 0.548 254.8
1899.0 0.531 248.4
1900.0 0.517 241.5
1901.0 0.506 234.2
1902.0 0.497 226.7
1903.0 0.490 219.0
1904.0 0.483 211.0
1905.0 0.476 202.8
1906.0 0.467 194.3
1907.0 0.455 185.5
1908.0 0.442 176.1
1909.0 0.429 166.2
1910.0 0.419 155.6
1911.0 0.413 144.7
1912.0 0.416 133.7
1913.0 0.426 123.0
1914.0 0.446 113.1
1915.0 0.473 104.1
1916.0 0.506 96.2
1917.0 0.544 89.3
1918.0 0.586 83.4
1919.0 0.630 78.3
1920.0 0.676 73.9
1921.0 0.723 70.0
1922.0 0.771 66.6
1923.0 0.820 63.7
1924.0 0.868 61.0
1925.0 0.916 58.6
1926.0 0.964 56.5
1927.0 1.011 54.6
1928.0 1.059 52.8
1929.0 1.105 51.2
1930.0 1.151 49.7
1931.0 1.197 48.4
1932.0 1.242 47.1
1933.0 1.286 45.9
1934.0 1.330 44.8
1935.0 1.373 43.8
1936.0 1.416 42.8
1937.0 1.458 41.9
1938.0 1.499 41.0
1939.0 1.540 40.2
1940.0 1.581 39.4
1941.0 1.621 38.7
1942.0 1.660 38.0
1943.0 1.698 37.3
1944.0 1.737 36.7
1945.0 1.774 36.1
1946.0 1.811 35.5
1947.0 1.848 34.9
1948.0 1.884 34.4
1949.0 1.920 33.9
1950.0 1.955 33.4
1951.0 1.990 32.9
1952.0 2.024 32.4
1953.0 2.058 32.0
1954.0 2.091 31.5
1955.0 2.124 31.1
1956.0 2.157 30.7
1957.0 2.189 30.3
1958.0 2.221 29.9
1959.0 2.252 29.5
1960.0 2.283 29.2
1961.0 2.314 28.8
1962.0 2.344 28.5
1963.0 2.374 28.1
1964.0 2.403 27.8
1965.0 2.432 27.5
1966.0 2.461 27.1
1967.0 2.489 26.8
1968.0 2.517 26.5
1969.0 2.545 26.2
1970.0 2.572 26.0
1971.0 2.599 25.7
1972.0 2.626 25.4
1973.0 2.653 25.1
1974.0 2.679 24.9
1975.0 2.704 24.6
1976.0 2.730 24.3
1977.0 2.755 24.1
1978.0 2.780 23.8
1979.0 2.804 23.6
1980.0 2.829 23.4
1981.0 2.853 23.1
1982.0 2.876 22.9
1983.0 2.900 22.7
1984.0 2.923 22.5
1985.0 2.946 22.2
1986.0 2.968 22.0
1987.0 2.991 21.8
1988.0 3.013 21.6
1989.0 3.034 21.4
1990.0 3.056 21.2
1991.0 3.077 21.0
1992.0 3.098 20.8
1993.0 3.119 20.6
1994.0 3.140 20.4
1995.0 3.160 20.2
1996.0 3.180 20.0
1997.0 3.200 19.8
1998.0 3.219 19.7
1999.0 3.239 19.5
2000.0 3.258 19.3
2001.0 3.277 19.1
2002.0 3.295 18.9
2003.0 3.314 18.8
2004.0 3.332 18.6
2005.0 3.350 18.4
2006.0 3.368 18.3
2007.0 3.385 18.1
2008.0 3.403 17.9
2009.0 3.420 17.8
2010.0 3.437 17.6
2011.0 3.453 17.5
2012.0 3.470 17.3
2013.0 3.486 17.1
2014.0 3.502 17.0
2015.0 3.518 16.8
2016.0 3.534 16.7
2017.0 3.549 16.5
2018.0 3.564 16.4
2019.0 3.579 16.2
2020.0 3.594 16.1
2021.0 3.609 15.9
2022.0 3.624 15.8
2023.0 3.638 15.7
2024.0 3.652 15.5
2025.0 3.666 15.4
2026.0 3.680 15.2
2027.0 3.693 15.1
2028.0 3.706 15.0
2029.0 3.720 14.8
2030.0 3.733 14.7
2031.0 3.745 14.6
2032.0 3.758 14.4
2033.0 3.770 14.3
2034.0 3.783 14.2
2035.0 3.795 14.0
2036.0 3.807 13.9
2037.0 3.818 13.8
2038.0 3.830 13.6
2039.0 3.841 13.5
2040.0 3.853 13.4
2041.0 3.864 13.3
2042.0 3.874 13.1
2043.0 3.885 13.0
2044.0 3.896 12.9
2045.0 3.906 12.8
2046.0 3.916 12.6
2047.0 3.926 12.5
2048.0 3.936 12.4
2049.0 3.946 12.3
2050.0 3.955 12.1
2051.0 3.965 12.0
2052.0 3.974 11.9
2053.0 3.983 11.8
2054.0 3.992 11.7
2055.0 4.001 11.5
2056.0 4.009 11.4
2057.0 4.018 11.3
2058.0 4.026 11.2
2059.0 4.034 11.1
2060.0 4.042 11.0
2061.0 4.050 10.8
2062.0 4.057 10.7
2063.0 4.065 10.6
2064.0 4.072 10.5
2065.0 4.079 10.4
2066.0 4.086 10.3
2067.0 4.093 10.2
2068.0 4.100 10.1
2069.0 4.106 9.9
2070.0 4.113 9.8
2071.0 4.119 9.7
2072.0 4.125 9.6
2073.0 4.131 9.5
2074.0 4.137 9.4
2075.0 4.142 9.3
2076.0 4.148 9.2
2077.0 4.153 9.1
2078.0 4.158 8.9
2079.0 4.163 8.8
2080.0 4.168 8.7
2081.0 4.173 8.6
2082.0 4.178 8.5
2083.0 4.182 8.4
2084.0 4.186 8.3
2085.0 4.190 8.2
2086.0 4.194 8.1
2087.0 4.198 8.0
2088.0 4.202 7.9
2089.0 4.206 7.8
2090.0 4.209 7.7
2091.0 4.212 7.6
2092.0 4.216 7.4
2093.0 4.219 7.3
2094.0 4.222 7.2
2095.0 4.224 7.1
2096.0 4.227 7.0
2097.0 4.229 6.9
2098.0 4.232 6.8
2099.0 4.234 6.7
2100.0 4.236 6.6
2101.0 4.238 6.5
2102.0 4.239 6.4
2103.0 4.241 6.3
2104.0 4.243 6.2
2105.0 4.244 6.1
2106.0 4.245 6.0
2107.0 4.246 5.9
2108.0 4.247 5.8
2109.0 4.248 5.7
2110.0 4.248 5.6
2111.0 4.249 5.4
2112.0 4.249 5.3
2113.0 4.250 5.2
2114.0 4.250 5.1
2115.0 4.250 5.0
2116.0 4.249 4.9
2117.0 4.249 4.8
2118.0 4.249 4.7
2119.0 4.248 4.6
2120.0 4.247 4.5
2121.0 4.246 4.4
2122.0 4.245 4.3
2123.0 4.244 4.2
2124.0 4.243 4.1
2125.0 4.242 4.0
2126.0 4.240 3.9
2127.0 4.238 3.8
2128.0 4.236 3.7
2129.0 4.235 3.6
2130.0 4.232 3.5
2131.0 4.230 3.4
2132.0 4.228 3.3
2133.0 4.225 3.1
2134.0 4.223 3.0
2135.0 4.220 2.9
2136.0 4.217 2.8
2137.0 4.214 2.7
2138.0 4.211 2.6
2139.0 4.207 2.5
2140.0 4.204 2.4
2141.0 4.200 2.3
2142.0 4.197 2.2
2143.0 4.193 2.1
2144.0 4.189 2.0
2145.0 4.185 1.9
2146.0 4.180 1.8
2147.0 4.176 1.7
2148.0 4.171 1.5
2149.0 4.167 1.4
2150.0 4.162 1.3
2151.0 4.157 1.2
2152.0 4.152 1.1
2153.0 4.146 1.0
2154.0 4.141 0.9
2155.0 4.135 0.8
2156.0 4.130 0.7
2157.0 4.124 0.6
2158.0 4.118 0.4
2159.0 4.112 0.3
2160.0 4.106 0.2
2161.0 4.099 0.1
2162.0 4.093 360.0
2163.0 4.086 359.9
2164.0 4.080 359.8
2165.0 4.073 359.7
2166.0 4.066 359.5
2167.0 4.058 359.4
2168.0 4.051 359.3
2169.0 4.044 359.2
2170.0 4.036 359.1
2171.0 4.028 359.0
2172.0 4.020 358.9
2173.0 4.012 358.7
2174.0 4.004 358.6
2175.0 3.996 358.5
2176.0 3.987 358.4
2177.0 3.979 358.3
2178.0 3.970 358.1
2179.0 3.961 358.0
2180.0 3.952 357.9
2181.0 3.943 357.8
2182.0 3.934 357.7
2183.0 3.924 357.5
2184.0 3.914 357.4
2185.0 3.905 357.3
2186.0 3.895 357.2
2187.0 3.885 357.0
2188.0 3.875 356.9
2189.0 3.864 356.8
2190.0 3.854 356.7
2191.0 3.843 356.5
2192.0 3.832 356.4
2193.0 3.821 356.3
2194.0 3.810 356.2
2195.0 3.799 356.0
2196.0 3.788 355.9
2197.0 3.776 355.8
2198.0 3.764 355.6
2199.0 3.753 355.5
2200.0 3.741 355.4
2201.0 3.728 355.2
2202.0 3.716 355.1
2203.0 3.704 355.0
2204.0 3.691 354.8
2205.0 3.678 354.7
2206.0 3.665 354.5
2207.0 3.652 354.4
2208.0 3.639 354.3
2209.0 3.626 354.1
2210.0 3.612 354.0
2211.0 3.598 353.8
2212.0 3.584 353.7
2213.0 3.570 353.5
2214.0 3.556 353.4
2215.0 3.542 353.2
2216.0 3.527 353.1
2217.0 3.513 352.9
2218.0 3.498 352.8
2219.0 3.483 352.6
2220.0 3.468 352.5
2221.0 3.452 352.3
2222.0 3.437 352.1
2223.0 3.421 352.0
2224.0 3.405 351.8
2225.0 3.389 351.7
2226.0 3.373 351.5
2227.0 3.357 351.3
2228.0 3.340 351.2
2229.0 3.324 351.0
2230.0 3.307 350.8
2231.0 3.290 350.6
2232.0 3.272 350.5
2233.0 3.255 350.3
2234.0 3.237 350.1
2235.0 3.220 349.9
2236.0 3.202 349.8
2237.0 3.184 349.6
2238.0 3.165 349.4
2239.0 3.147 349.2
2240.0 3.128 349.0
This result is provided without warranty. For all terms, see the Full Disclaimer .
Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0 .
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 .
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