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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:12:13
WDS:
BU984
WDS ID/Discoverer
P:
286.576
Orbital period (years)
a:
0.8
Semi-major axis (arcseconds)
i:
70.19
Inclination (degrees)
Ω:
43.99
Longitude of ascending node (degrees)
T:
2080.014
Epoch of periastron passage (year)
e:
0.0885
Eccentricity
ω:
2.98
Longitude of periastron (degrees)
Start-Year:
1882.0
Year
End-Year:
2168.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
201734.66+262213.0
Epoch-2000 right ascension and declination
WDS-ID:
20176+2622
WDS designation
Discoverer Code:
BU984
Discover designation and components
ADS number:
13649
Aitken Double Star catalog
HD number:
193095
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
8.22
Magnitude of the primary
V2:
9.39
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1994
Date of last observation
Orbit grade:
5
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.319 350.4
-------------------------
1882.0 0.513 196.7
1883.0 0.525 197.7
1884.0 0.537 198.7
1885.0 0.548 199.6
1886.0 0.560 200.5
1887.0 0.572 201.3
1888.0 0.583 202.1
1889.0 0.594 202.9
1890.0 0.605 203.7
1891.0 0.616 204.4
1892.0 0.627 205.1
1893.0 0.638 205.8
1894.0 0.648 206.4
1895.0 0.659 207.1
1896.0 0.669 207.7
1897.0 0.679 208.3
1898.0 0.688 208.9
1899.0 0.698 209.4
1900.0 0.707 210.0
1901.0 0.716 210.5
1902.0 0.725 211.0
1903.0 0.734 211.5
1904.0 0.742 212.0
1905.0 0.750 212.5
1906.0 0.758 213.0
1907.0 0.766 213.5
1908.0 0.773 213.9
1909.0 0.780 214.4
1910.0 0.787 214.8
1911.0 0.794 215.3
1912.0 0.800 215.7
1913.0 0.806 216.1
1914.0 0.812 216.5
1915.0 0.818 216.9
1916.0 0.823 217.3
1917.0 0.828 217.7
1918.0 0.833 218.1
1919.0 0.837 218.5
1920.0 0.842 218.9
1921.0 0.846 219.3
1922.0 0.849 219.7
1923.0 0.853 220.0
1924.0 0.856 220.4
1925.0 0.858 220.8
1926.0 0.861 221.1
1927.0 0.863 221.5
1928.0 0.865 221.9
1929.0 0.867 222.2
1930.0 0.868 222.6
1931.0 0.869 222.9
1932.0 0.870 223.3
1933.0 0.870 223.7
1934.0 0.871 224.0
1935.0 0.871 224.4
1936.0 0.870 224.7
1937.0 0.870 225.1
1938.0 0.869 225.5
1939.0 0.867 225.8
1940.0 0.866 226.2
1941.0 0.864 226.5
1942.0 0.862 226.9
1943.0 0.859 227.3
1944.0 0.857 227.6
1945.0 0.854 228.0
1946.0 0.851 228.4
1947.0 0.847 228.8
1948.0 0.843 229.1
1949.0 0.839 229.5
1950.0 0.835 229.9
1951.0 0.830 230.3
1952.0 0.825 230.7
1953.0 0.820 231.1
1954.0 0.814 231.5
1955.0 0.809 231.9
1956.0 0.803 232.3
1957.0 0.796 232.8
1958.0 0.790 233.2
1959.0 0.783 233.6
1960.0 0.776 234.1
1961.0 0.769 234.5
1962.0 0.761 235.0
1963.0 0.754 235.5
1964.0 0.746 236.0
1965.0 0.737 236.4
1966.0 0.729 237.0
1967.0 0.720 237.5
1968.0 0.711 238.0
1969.0 0.702 238.5
1970.0 0.693 239.1
1971.0 0.683 239.7
1972.0 0.674 240.3
1973.0 0.664 240.9
1974.0 0.654 241.5
1975.0 0.643 242.1
1976.0 0.633 242.8
1977.0 0.622 243.5
1978.0 0.611 244.2
1979.0 0.600 245.0
1980.0 0.589 245.7
1981.0 0.578 246.5
1982.0 0.567 247.3
1983.0 0.555 248.2
1984.0 0.544 249.1
1985.0 0.532 250.0
1986.0 0.520 251.0
1987.0 0.509 252.0
1988.0 0.497 253.1
1989.0 0.485 254.2
1990.0 0.473 255.4
1991.0 0.461 256.7
1992.0 0.450 258.0
1993.0 0.438 259.4
1994.0 0.426 260.8
1995.0 0.415 262.3
1996.0 0.403 264.0
1997.0 0.392 265.7
1998.0 0.381 267.5
1999.0 0.370 269.4
2000.0 0.360 271.5
2001.0 0.349 273.6
2002.0 0.339 275.9
2003.0 0.330 278.3
2004.0 0.321 280.9
2005.0 0.313 283.6
2006.0 0.305 286.5
2007.0 0.298 289.5
2008.0 0.291 292.6
2009.0 0.285 295.9
2010.0 0.281 299.3
2011.0 0.277 302.8
2012.0 0.273 306.3
2013.0 0.271 310.0
2014.0 0.270 313.7
2015.0 0.270 317.4
2016.0 0.271 321.1
2017.0 0.273 324.8
2018.0 0.276 328.4
2019.0 0.280 331.9
2020.0 0.284 335.3
2021.0 0.290 338.6
2022.0 0.296 341.8
2023.0 0.303 344.8
2024.0 0.311 347.7
2025.0 0.319 350.4
2026.0 0.328 353.0
2027.0 0.337 355.5
2028.0 0.347 357.8
2029.0 0.357 0.0
2030.0 0.367 2.1
2031.0 0.378 4.1
2032.0 0.388 5.9
2033.0 0.399 7.7
2034.0 0.410 9.3
2035.0 0.422 10.9
2036.0 0.433 12.4
2037.0 0.444 13.8
2038.0 0.455 15.1
2039.0 0.467 16.4
2040.0 0.478 17.6
2041.0 0.489 18.8
2042.0 0.500 19.9
2043.0 0.511 20.9
2044.0 0.522 22.0
2045.0 0.533 22.9
2046.0 0.543 23.9
2047.0 0.554 24.8
2048.0 0.564 25.6
2049.0 0.574 26.5
2050.0 0.584 27.3
2051.0 0.593 28.1
2052.0 0.603 28.8
2053.0 0.612 29.6
2054.0 0.620 30.3
2055.0 0.629 31.0
2056.0 0.637 31.7
2057.0 0.645 32.3
2058.0 0.653 33.0
2059.0 0.660 33.6
2060.0 0.667 34.2
2061.0 0.673 34.8
2062.0 0.680 35.4
2063.0 0.686 36.0
2064.0 0.691 36.6
2065.0 0.696 37.1
2066.0 0.701 37.7
2067.0 0.706 38.2
2068.0 0.710 38.8
2069.0 0.714 39.3
2070.0 0.717 39.8
2071.0 0.720 40.4
2072.0 0.722 40.9
2073.0 0.725 41.4
2074.0 0.726 41.9
2075.0 0.728 42.4
2076.0 0.729 43.0
2077.0 0.729 43.5
2078.0 0.729 44.0
2079.0 0.729 44.5
2080.0 0.728 45.0
2081.0 0.727 45.5
2082.0 0.726 46.0
2083.0 0.724 46.5
2084.0 0.722 47.1
2085.0 0.719 47.6
2086.0 0.716 48.1
2087.0 0.712 48.6
2088.0 0.709 49.2
2089.0 0.704 49.7
2090.0 0.700 50.3
2091.0 0.695 50.8
2092.0 0.689 51.4
2093.0 0.684 52.0
2094.0 0.677 52.6
2095.0 0.671 53.2
2096.0 0.664 53.8
2097.0 0.657 54.4
2098.0 0.650 55.0
2099.0 0.642 55.7
2100.0 0.634 56.3
2101.0 0.626 57.0
2102.0 0.617 57.7
2103.0 0.608 58.4
2104.0 0.599 59.2
2105.0 0.589 60.0
2106.0 0.579 60.8
2107.0 0.570 61.6
2108.0 0.559 62.4
2109.0 0.549 63.3
2110.0 0.538 64.2
2111.0 0.528 65.2
2112.0 0.517 66.2
2113.0 0.506 67.2
2114.0 0.495 68.3
2115.0 0.483 69.4
2116.0 0.472 70.6
2117.0 0.460 71.9
2118.0 0.449 73.2
2119.0 0.438 74.6
2120.0 0.426 76.0
2121.0 0.415 77.6
2122.0 0.404 79.2
2123.0 0.392 80.9
2124.0 0.381 82.7
2125.0 0.370 84.6
2126.0 0.360 86.7
2127.0 0.350 88.8
2128.0 0.340 91.1
2129.0 0.330 93.5
2130.0 0.321 96.1
2131.0 0.312 98.8
2132.0 0.304 101.7
2133.0 0.297 104.7
2134.0 0.290 107.8
2135.0 0.284 111.1
2136.0 0.279 114.6
2137.0 0.275 118.1
2138.0 0.272 121.7
2139.0 0.269 125.4
2140.0 0.268 129.2
2141.0 0.268 133.0
2142.0 0.268 136.8
2143.0 0.270 140.5
2144.0 0.273 144.2
2145.0 0.277 147.8
2146.0 0.281 151.3
2147.0 0.287 154.6
2148.0 0.293 157.9
2149.0 0.301 160.9
2150.0 0.308 163.9
2151.0 0.317 166.7
2152.0 0.326 169.3
2153.0 0.335 171.8
2154.0 0.345 174.1
2155.0 0.355 176.3
2156.0 0.366 178.4
2157.0 0.377 180.4
2158.0 0.388 182.2
2159.0 0.400 184.0
2160.0 0.411 185.6
2161.0 0.423 187.2
2162.0 0.435 188.7
2163.0 0.446 190.1
2164.0 0.458 191.4
2165.0 0.470 192.7
2166.0 0.482 193.9
2167.0 0.494 195.0
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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