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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:53:31
WDS:
BU47
WDS ID/Discoverer
P:
403.900
Orbital period (years)
a:
1.209
Semi-major axis (arcseconds)
i:
54.0
Inclination (degrees)
Ω:
85.3
Longitude of ascending node (degrees)
T:
2013.000
Epoch of periastron passage (year)
e:
0.478
Eccentricity
ω:
339.8
Longitude of periastron (degrees)
Start-Year:
1824.0
Year
End-Year:
2226.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
180130.85-101400.9
Epoch-2000 right ascension and declination
WDS-ID:
18015-1014
WDS designation
Discoverer Code:
BU47
Discover designation and components
ADS number:
10977
Aitken Double Star catalog
HD number:
164434
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
8.74
Magnitude of the primary
V2:
9.59
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2009
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 0.655 93.0
-------------------------
1824.0 1.739 256.0
1825.0 1.740 256.2
1826.0 1.741 256.5
1827.0 1.742 256.7
1828.0 1.743 256.9
1829.0 1.743 257.1
1830.0 1.744 257.3
1831.0 1.744 257.6
1832.0 1.745 257.8
1833.0 1.745 258.0
1834.0 1.745 258.2
1835.0 1.745 258.4
1836.0 1.745 258.7
1837.0 1.745 258.9
1838.0 1.744 259.1
1839.0 1.744 259.3
1840.0 1.744 259.6
1841.0 1.743 259.8
1842.0 1.742 260.0
1843.0 1.741 260.2
1844.0 1.740 260.4
1845.0 1.739 260.7
1846.0 1.738 260.9
1847.0 1.737 261.1
1848.0 1.735 261.3
1849.0 1.734 261.6
1850.0 1.732 261.8
1851.0 1.730 262.0
1852.0 1.728 262.2
1853.0 1.726 262.5
1854.0 1.724 262.7
1855.0 1.722 262.9
1856.0 1.720 263.1
1857.0 1.717 263.4
1858.0 1.714 263.6
1859.0 1.712 263.8
1860.0 1.709 264.0
1861.0 1.706 264.3
1862.0 1.703 264.5
1863.0 1.700 264.7
1864.0 1.696 265.0
1865.0 1.693 265.2
1866.0 1.689 265.4
1867.0 1.686 265.7
1868.0 1.682 265.9
1869.0 1.678 266.2
1870.0 1.674 266.4
1871.0 1.670 266.6
1872.0 1.666 266.9
1873.0 1.661 267.1
1874.0 1.657 267.4
1875.0 1.652 267.6
1876.0 1.647 267.9
1877.0 1.642 268.1
1878.0 1.637 268.4
1879.0 1.632 268.6
1880.0 1.627 268.9
1881.0 1.621 269.1
1882.0 1.616 269.4
1883.0 1.610 269.6
1884.0 1.604 269.9
1885.0 1.598 270.2
1886.0 1.592 270.4
1887.0 1.586 270.7
1888.0 1.580 271.0
1889.0 1.573 271.2
1890.0 1.567 271.5
1891.0 1.560 271.8
1892.0 1.553 272.0
1893.0 1.546 272.3
1894.0 1.539 272.6
1895.0 1.532 272.9
1896.0 1.525 273.2
1897.0 1.517 273.5
1898.0 1.509 273.8
1899.0 1.502 274.1
1900.0 1.494 274.4
1901.0 1.486 274.7
1902.0 1.477 275.0
1903.0 1.469 275.3
1904.0 1.460 275.6
1905.0 1.452 275.9
1906.0 1.443 276.2
1907.0 1.434 276.6
1908.0 1.425 276.9
1909.0 1.416 277.2
1910.0 1.407 277.6
1911.0 1.397 277.9
1912.0 1.388 278.3
1913.0 1.378 278.6
1914.0 1.368 279.0
1915.0 1.358 279.3
1916.0 1.348 279.7
1917.0 1.337 280.1
1918.0 1.327 280.4
1919.0 1.316 280.8
1920.0 1.305 281.2
1921.0 1.295 281.6
1922.0 1.284 282.0
1923.0 1.272 282.4
1924.0 1.261 282.9
1925.0 1.250 283.3
1926.0 1.238 283.7
1927.0 1.226 284.2
1928.0 1.214 284.6
1929.0 1.202 285.1
1930.0 1.190 285.5
1931.0 1.178 286.0
1932.0 1.165 286.5
1933.0 1.153 287.0
1934.0 1.140 287.5
1935.0 1.127 288.0
1936.0 1.114 288.6
1937.0 1.101 289.1
1938.0 1.088 289.7
1939.0 1.074 290.3
1940.0 1.061 290.9
1941.0 1.047 291.5
1942.0 1.033 292.1
1943.0 1.019 292.7
1944.0 1.005 293.4
1945.0 0.991 294.1
1946.0 0.977 294.8
1947.0 0.962 295.5
1948.0 0.948 296.2
1949.0 0.933 297.0
1950.0 0.919 297.7
1951.0 0.904 298.6
1952.0 0.889 299.4
1953.0 0.874 300.3
1954.0 0.859 301.2
1955.0 0.844 302.1
1956.0 0.829 303.0
1957.0 0.814 304.0
1958.0 0.799 305.1
1959.0 0.784 306.1
1960.0 0.769 307.3
1961.0 0.754 308.4
1962.0 0.739 309.6
1963.0 0.724 310.9
1964.0 0.709 312.2
1965.0 0.694 313.6
1966.0 0.679 315.0
1967.0 0.664 316.5
1968.0 0.650 318.0
1969.0 0.636 319.7
1970.0 0.622 321.4
1971.0 0.608 323.2
1972.0 0.594 325.0
1973.0 0.581 327.0
1974.0 0.568 329.0
1975.0 0.556 331.1
1976.0 0.544 333.4
1977.0 0.533 335.7
1978.0 0.522 338.1
1979.0 0.512 340.6
1980.0 0.502 343.2
1981.0 0.493 346.0
1982.0 0.485 348.8
1983.0 0.478 351.7
1984.0 0.472 354.7
1985.0 0.466 357.7
1986.0 0.462 0.8
1987.0 0.459 4.0
1988.0 0.456 7.2
1989.0 0.455 10.5
1990.0 0.454 13.7
1991.0 0.455 17.0
1992.0 0.457 20.2
1993.0 0.459 23.4
1994.0 0.463 26.6
1995.0 0.467 29.7
1996.0 0.472 32.8
1997.0 0.478 35.8
1998.0 0.484 38.7
1999.0 0.491 41.5
2000.0 0.499 44.2
2001.0 0.507 46.9
2002.0 0.515 49.5
2003.0 0.523 52.0
2004.0 0.532 54.4
2005.0 0.541 56.7
2006.0 0.549 59.0
2007.0 0.558 61.2
2008.0 0.567 63.3
2009.0 0.575 65.4
2010.0 0.583 67.4
2011.0 0.591 69.3
2012.0 0.599 71.2
2013.0 0.606 73.1
2014.0 0.613 74.9
2015.0 0.619 76.7
2016.0 0.625 78.4
2017.0 0.630 80.1
2018.0 0.635 81.8
2019.0 0.640 83.5
2020.0 0.643 85.1
2021.0 0.647 86.7
2022.0 0.650 88.3
2023.0 0.652 89.9
2024.0 0.654 91.5
2025.0 0.655 93.0
2026.0 0.656 94.6
2027.0 0.657 96.2
2028.0 0.657 97.7
2029.0 0.656 99.3
2030.0 0.656 100.9
2031.0 0.655 102.4
2032.0 0.653 104.0
2033.0 0.652 105.6
2034.0 0.650 107.2
2035.0 0.648 108.8
2036.0 0.646 110.4
2037.0 0.643 112.0
2038.0 0.641 113.6
2039.0 0.638 115.3
2040.0 0.635 116.9
2041.0 0.633 118.6
2042.0 0.630 120.3
2043.0 0.627 122.0
2044.0 0.625 123.7
2045.0 0.622 125.4
2046.0 0.620 127.2
2047.0 0.618 128.9
2048.0 0.616 130.7
2049.0 0.614 132.5
2050.0 0.612 134.3
2051.0 0.610 136.1
2052.0 0.609 137.9
2053.0 0.608 139.7
2054.0 0.607 141.5
2055.0 0.607 143.3
2056.0 0.607 145.2
2057.0 0.607 147.0
2058.0 0.607 148.8
2059.0 0.608 150.6
2060.0 0.609 152.5
2061.0 0.611 154.3
2062.0 0.613 156.1
2063.0 0.615 157.9
2064.0 0.617 159.6
2065.0 0.620 161.4
2066.0 0.623 163.1
2067.0 0.627 164.8
2068.0 0.631 166.5
2069.0 0.635 168.2
2070.0 0.639 169.9
2071.0 0.644 171.5
2072.0 0.649 173.1
2073.0 0.655 174.7
2074.0 0.660 176.3
2075.0 0.666 177.8
2076.0 0.672 179.3
2077.0 0.679 180.8
2078.0 0.686 182.2
2079.0 0.693 183.6
2080.0 0.700 185.0
2081.0 0.707 186.4
2082.0 0.715 187.7
2083.0 0.723 189.0
2084.0 0.731 190.3
2085.0 0.739 191.5
2086.0 0.747 192.7
2087.0 0.756 193.9
2088.0 0.765 195.1
2089.0 0.773 196.2
2090.0 0.782 197.4
2091.0 0.791 198.4
2092.0 0.801 199.5
2093.0 0.810 200.5
2094.0 0.819 201.5
2095.0 0.829 202.5
2096.0 0.838 203.5
2097.0 0.848 204.5
2098.0 0.858 205.4
2099.0 0.868 206.3
2100.0 0.877 207.2
2101.0 0.887 208.0
2102.0 0.897 208.9
2103.0 0.907 209.7
2104.0 0.917 210.5
2105.0 0.927 211.3
2106.0 0.937 212.1
2107.0 0.948 212.8
2108.0 0.958 213.6
2109.0 0.968 214.3
2110.0 0.978 215.0
2111.0 0.988 215.7
2112.0 0.998 216.4
2113.0 1.008 217.1
2114.0 1.018 217.7
2115.0 1.029 218.4
2116.0 1.039 219.0
2117.0 1.049 219.6
2118.0 1.059 220.2
2119.0 1.069 220.8
2120.0 1.079 221.4
2121.0 1.089 222.0
2122.0 1.099 222.5
2123.0 1.109 223.1
2124.0 1.118 223.6
2125.0 1.128 224.1
2126.0 1.138 224.7
2127.0 1.148 225.2
2128.0 1.158 225.7
2129.0 1.167 226.2
2130.0 1.177 226.7
2131.0 1.186 227.2
2132.0 1.196 227.6
2133.0 1.205 228.1
2134.0 1.215 228.6
2135.0 1.224 229.0
2136.0 1.233 229.5
2137.0 1.243 229.9
2138.0 1.252 230.3
2139.0 1.261 230.8
2140.0 1.270 231.2
2141.0 1.279 231.6
2142.0 1.288 232.0
2143.0 1.297 232.4
2144.0 1.305 232.8
2145.0 1.314 233.2
2146.0 1.323 233.6
2147.0 1.331 234.0
2148.0 1.340 234.3
2149.0 1.348 234.7
2150.0 1.357 235.1
2151.0 1.365 235.4
2152.0 1.373 235.8
2153.0 1.381 236.2
2154.0 1.389 236.5
2155.0 1.397 236.8
2156.0 1.405 237.2
2157.0 1.413 237.5
2158.0 1.421 237.9
2159.0 1.428 238.2
2160.0 1.436 238.5
2161.0 1.443 238.9
2162.0 1.451 239.2
2163.0 1.458 239.5
2164.0 1.465 239.8
2165.0 1.473 240.1
2166.0 1.480 240.4
2167.0 1.487 240.7
2168.0 1.494 241.0
2169.0 1.500 241.3
2170.0 1.507 241.6
2171.0 1.514 241.9
2172.0 1.520 242.2
2173.0 1.527 242.5
2174.0 1.533 242.8
2175.0 1.540 243.1
2176.0 1.546 243.4
2177.0 1.552 243.6
2178.0 1.558 243.9
2179.0 1.564 244.2
2180.0 1.570 244.5
2181.0 1.576 244.7
2182.0 1.581 245.0
2183.0 1.587 245.3
2184.0 1.592 245.5
2185.0 1.598 245.8
2186.0 1.603 246.1
2187.0 1.608 246.3
2188.0 1.613 246.6
2189.0 1.618 246.9
2190.0 1.623 247.1
2191.0 1.628 247.4
2192.0 1.633 247.6
2193.0 1.638 247.9
2194.0 1.642 248.1
2195.0 1.647 248.4
2196.0 1.651 248.6
2197.0 1.655 248.9
2198.0 1.660 249.1
2199.0 1.664 249.3
2200.0 1.668 249.6
2201.0 1.672 249.8
2202.0 1.675 250.1
2203.0 1.679 250.3
2204.0 1.683 250.5
2205.0 1.686 250.8
2206.0 1.690 251.0
2207.0 1.693 251.3
2208.0 1.696 251.5
2209.0 1.699 251.7
2210.0 1.702 252.0
2211.0 1.705 252.2
2212.0 1.708 252.4
2213.0 1.711 252.7
2214.0 1.713 252.9
2215.0 1.716 253.1
2216.0 1.718 253.3
2217.0 1.721 253.6
2218.0 1.723 253.8
2219.0 1.725 254.0
2220.0 1.727 254.2
2221.0 1.729 254.5
2222.0 1.731 254.7
2223.0 1.732 254.9
2224.0 1.734 255.1
2225.0 1.735 255.4
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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