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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:52:00
WDS:
STF3128AB
WDS ID/Discoverer
P:
353.894
Orbital period (years)
a:
0.90295
Semi-major axis (arcseconds)
i:
158.548
Inclination (degrees)
Ω:
19.871
Longitude of ascending node (degrees)
T:
1946.890
Epoch of periastron passage (year)
e:
0.94042
Eccentricity
ω:
160.838
Longitude of periastron (degrees)
Start-Year:
1849.0
Year
End-Year:
2201.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
175258.64-075510.2
Epoch-2000 right ascension and declination
WDS-ID:
17530-0755
WDS designation
Discoverer Code:
STF3128AB
Discover designation and components
ADS number:
10858
Aitken Double Star catalog
HD number:
162756
HD catalog number
Hipparcos number:
87533
Hipparcos catalog number
V1:
7.82
Magnitude of the primary
V2:
9.95
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
Date of last observation
Orbit grade:
5
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 1.356 47.9
-------------------------
1849.0 1.516 30.3
1850.0 1.510 30.2
1851.0 1.504 30.1
1852.0 1.498 30.0
1853.0 1.491 29.8
1854.0 1.485 29.7
1855.0 1.478 29.6
1856.0 1.471 29.5
1857.0 1.465 29.4
1858.0 1.458 29.2
1859.0 1.451 29.1
1860.0 1.444 29.0
1861.0 1.436 28.9
1862.0 1.429 28.7
1863.0 1.422 28.6
1864.0 1.414 28.5
1865.0 1.407 28.3
1866.0 1.399 28.2
1867.0 1.391 28.1
1868.0 1.383 27.9
1869.0 1.375 27.8
1870.0 1.367 27.7
1871.0 1.359 27.5
1872.0 1.350 27.4
1873.0 1.342 27.2
1874.0 1.333 27.1
1875.0 1.324 26.9
1876.0 1.315 26.8
1877.0 1.306 26.6
1878.0 1.297 26.5
1879.0 1.288 26.3
1880.0 1.278 26.2
1881.0 1.269 26.0
1882.0 1.259 25.8
1883.0 1.249 25.7
1884.0 1.240 25.5
1885.0 1.229 25.3
1886.0 1.219 25.1
1887.0 1.209 25.0
1888.0 1.198 24.8
1889.0 1.188 24.6
1890.0 1.177 24.4
1891.0 1.166 24.2
1892.0 1.155 24.0
1893.0 1.144 23.8
1894.0 1.132 23.6
1895.0 1.120 23.4
1896.0 1.109 23.2
1897.0 1.097 23.0
1898.0 1.085 22.8
1899.0 1.072 22.5
1900.0 1.060 22.3
1901.0 1.047 22.1
1902.0 1.034 21.8
1903.0 1.021 21.6
1904.0 1.008 21.3
1905.0 0.994 21.1
1906.0 0.981 20.8
1907.0 0.967 20.5
1908.0 0.953 20.2
1909.0 0.938 19.9
1910.0 0.924 19.6
1911.0 0.909 19.3
1912.0 0.894 19.0
1913.0 0.878 18.7
1914.0 0.863 18.3
1915.0 0.847 18.0
1916.0 0.830 17.6
1917.0 0.814 17.2
1918.0 0.797 16.8
1919.0 0.780 16.4
1920.0 0.762 15.9
1921.0 0.745 15.5
1922.0 0.726 15.0
1923.0 0.708 14.5
1924.0 0.689 13.9
1925.0 0.669 13.4
1926.0 0.650 12.8
1927.0 0.629 12.1
1928.0 0.608 11.4
1929.0 0.587 10.7
1930.0 0.565 9.9
1931.0 0.543 9.1
1932.0 0.519 8.1
1933.0 0.495 7.1
1934.0 0.471 6.0
1935.0 0.445 4.7
1936.0 0.419 3.3
1937.0 0.392 1.7
1938.0 0.363 359.9
1939.0 0.333 357.7
1940.0 0.302 355.1
1941.0 0.269 351.9
1942.0 0.234 347.7
1943.0 0.197 342.0
1944.0 0.157 333.5
1945.0 0.114 318.8
1946.0 0.071 286.1
1947.0 0.054 207.8
1948.0 0.082 144.2
1949.0 0.121 117.5
1950.0 0.160 104.0
1951.0 0.197 95.7
1952.0 0.231 89.9
1953.0 0.264 85.6
1954.0 0.295 82.3
1955.0 0.325 79.5
1956.0 0.354 77.3
1957.0 0.381 75.3
1958.0 0.407 73.6
1959.0 0.433 72.1
1960.0 0.458 70.8
1961.0 0.481 69.6
1962.0 0.505 68.5
1963.0 0.527 67.5
1964.0 0.549 66.6
1965.0 0.571 65.8
1966.0 0.591 65.0
1967.0 0.612 64.3
1968.0 0.632 63.6
1969.0 0.651 63.0
1970.0 0.670 62.4
1971.0 0.689 61.8
1972.0 0.707 61.3
1973.0 0.725 60.8
1974.0 0.743 60.3
1975.0 0.760 59.8
1976.0 0.777 59.4
1977.0 0.794 58.9
1978.0 0.810 58.5
1979.0 0.826 58.1
1980.0 0.842 57.8
1981.0 0.857 57.4
1982.0 0.873 57.1
1983.0 0.888 56.7
1984.0 0.902 56.4
1985.0 0.917 56.1
1986.0 0.931 55.8
1987.0 0.945 55.5
1988.0 0.959 55.2
1989.0 0.973 54.9
1990.0 0.986 54.6
1991.0 1.000 54.4
1992.0 1.013 54.1
1993.0 1.026 53.8
1994.0 1.038 53.6
1995.0 1.051 53.4
1996.0 1.063 53.1
1997.0 1.075 52.9
1998.0 1.087 52.7
1999.0 1.099 52.4
2000.0 1.111 52.2
2001.0 1.122 52.0
2002.0 1.134 51.8
2003.0 1.145 51.6
2004.0 1.156 51.4
2005.0 1.167 51.2
2006.0 1.177 51.0
2007.0 1.188 50.8
2008.0 1.198 50.7
2009.0 1.209 50.5
2010.0 1.219 50.3
2011.0 1.229 50.1
2012.0 1.239 49.9
2013.0 1.248 49.8
2014.0 1.258 49.6
2015.0 1.268 49.4
2016.0 1.277 49.3
2017.0 1.286 49.1
2018.0 1.295 49.0
2019.0 1.304 48.8
2020.0 1.313 48.7
2021.0 1.322 48.5
2022.0 1.331 48.4
2023.0 1.339 48.2
2024.0 1.348 48.1
2025.0 1.356 47.9
2026.0 1.364 47.8
2027.0 1.372 47.6
2028.0 1.380 47.5
2029.0 1.388 47.4
2030.0 1.396 47.2
2031.0 1.403 47.1
2032.0 1.411 47.0
2033.0 1.418 46.8
2034.0 1.426 46.7
2035.0 1.433 46.6
2036.0 1.440 46.4
2037.0 1.447 46.3
2038.0 1.454 46.2
2039.0 1.461 46.1
2040.0 1.468 45.9
2041.0 1.474 45.8
2042.0 1.481 45.7
2043.0 1.487 45.6
2044.0 1.494 45.5
2045.0 1.500 45.4
2046.0 1.506 45.2
2047.0 1.512 45.1
2048.0 1.518 45.0
2049.0 1.524 44.9
2050.0 1.530 44.8
2051.0 1.536 44.7
2052.0 1.541 44.6
2053.0 1.547 44.4
2054.0 1.552 44.3
2055.0 1.558 44.2
2056.0 1.563 44.1
2057.0 1.568 44.0
2058.0 1.573 43.9
2059.0 1.578 43.8
2060.0 1.583 43.7
2061.0 1.588 43.6
2062.0 1.593 43.5
2063.0 1.598 43.4
2064.0 1.602 43.3
2065.0 1.607 43.2
2066.0 1.611 43.1
2067.0 1.616 43.0
2068.0 1.620 42.9
2069.0 1.624 42.8
2070.0 1.628 42.7
2071.0 1.632 42.6
2072.0 1.636 42.5
2073.0 1.640 42.4
2074.0 1.644 42.3
2075.0 1.648 42.2
2076.0 1.651 42.1
2077.0 1.655 42.0
2078.0 1.658 41.9
2079.0 1.662 41.8
2080.0 1.665 41.7
2081.0 1.668 41.6
2082.0 1.672 41.5
2083.0 1.675 41.4
2084.0 1.678 41.3
2085.0 1.681 41.2
2086.0 1.684 41.2
2087.0 1.687 41.1
2088.0 1.689 41.0
2089.0 1.692 40.9
2090.0 1.695 40.8
2091.0 1.697 40.7
2092.0 1.699 40.6
2093.0 1.702 40.5
2094.0 1.704 40.4
2095.0 1.706 40.3
2096.0 1.709 40.2
2097.0 1.711 40.1
2098.0 1.713 40.1
2099.0 1.715 40.0
2100.0 1.716 39.9
2101.0 1.718 39.8
2102.0 1.720 39.7
2103.0 1.722 39.6
2104.0 1.723 39.5
2105.0 1.725 39.4
2106.0 1.726 39.3
2107.0 1.727 39.3
2108.0 1.729 39.2
2109.0 1.730 39.1
2110.0 1.731 39.0
2111.0 1.732 38.9
2112.0 1.733 38.8
2113.0 1.734 38.7
2114.0 1.735 38.6
2115.0 1.736 38.6
2116.0 1.736 38.5
2117.0 1.737 38.4
2118.0 1.738 38.3
2119.0 1.738 38.2
2120.0 1.738 38.1
2121.0 1.739 38.0
2122.0 1.739 38.0
2123.0 1.739 37.9
2124.0 1.739 37.8
2125.0 1.740 37.7
2126.0 1.740 37.6
2127.0 1.739 37.5
2128.0 1.739 37.4
2129.0 1.739 37.3
2130.0 1.739 37.3
2131.0 1.738 37.2
2132.0 1.738 37.1
2133.0 1.738 37.0
2134.0 1.737 36.9
2135.0 1.736 36.8
2136.0 1.736 36.7
2137.0 1.735 36.6
2138.0 1.734 36.6
2139.0 1.733 36.5
2140.0 1.732 36.4
2141.0 1.731 36.3
2142.0 1.730 36.2
2143.0 1.729 36.1
2144.0 1.727 36.0
2145.0 1.726 35.9
2146.0 1.725 35.9
2147.0 1.723 35.8
2148.0 1.721 35.7
2149.0 1.720 35.6
2150.0 1.718 35.5
2151.0 1.716 35.4
2152.0 1.714 35.3
2153.0 1.712 35.2
2154.0 1.710 35.1
2155.0 1.708 35.1
2156.0 1.706 35.0
2157.0 1.704 34.9
2158.0 1.702 34.8
2159.0 1.699 34.7
2160.0 1.697 34.6
2161.0 1.694 34.5
2162.0 1.692 34.4
2163.0 1.689 34.3
2164.0 1.686 34.2
2165.0 1.683 34.1
2166.0 1.680 34.1
2167.0 1.677 34.0
2168.0 1.674 33.9
2169.0 1.671 33.8
2170.0 1.668 33.7
2171.0 1.665 33.6
2172.0 1.661 33.5
2173.0 1.658 33.4
2174.0 1.654 33.3
2175.0 1.651 33.2
2176.0 1.647 33.1
2177.0 1.643 33.0
2178.0 1.639 32.9
2179.0 1.635 32.8
2180.0 1.631 32.7
2181.0 1.627 32.6
2182.0 1.623 32.5
2183.0 1.619 32.4
2184.0 1.614 32.3
2185.0 1.610 32.2
2186.0 1.605 32.1
2187.0 1.601 32.0
2188.0 1.596 31.9
2189.0 1.591 31.8
2190.0 1.587 31.7
2191.0 1.582 31.6
2192.0 1.577 31.5
2193.0 1.572 31.4
2194.0 1.566 31.3
2195.0 1.561 31.2
2196.0 1.556 31.1
2197.0 1.550 31.0
2198.0 1.545 30.8
2199.0 1.539 30.7
2200.0 1.533 30.6
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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