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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:19:20
WDS:
BU368AB
WDS ID/Discoverer
P:
345.280
Orbital period (years)
a:
0.576
Semi-major axis (arcseconds)
i:
87.6
Inclination (degrees)
Ω:
270.1
Longitude of ascending node (degrees)
T:
1954.640
Epoch of periastron passage (year)
e:
0.665
Eccentricity
ω:
304.2
Longitude of periastron (degrees)
Start-Year:
1853.0
Year
End-Year:
2197.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
210726.28-081405.6
Epoch-2000 right ascension and declination
WDS-ID:
21074-0814
WDS designation
Discoverer Code:
BU368AB
Discover designation and components
ADS number:
14648
Aitken Double Star catalog
HD number:
201038
HD catalog number
Hipparcos number:
104272
Hipparcos catalog number
V1:
7.56
Magnitude of the primary
V2:
8.24
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
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 0.032 335.7
-------------------------
1853.0 0.697 88.5
1854.0 0.697 88.5
1855.0 0.697 88.5
1856.0 0.697 88.5
1857.0 0.696 88.6
1858.0 0.696 88.6
1859.0 0.696 88.6
1860.0 0.696 88.6
1861.0 0.695 88.7
1862.0 0.695 88.7
1863.0 0.694 88.7
1864.0 0.693 88.7
1865.0 0.692 88.7
1866.0 0.692 88.8
1867.0 0.691 88.8
1868.0 0.689 88.8
1869.0 0.688 88.8
1870.0 0.687 88.9
1871.0 0.686 88.9
1872.0 0.684 88.9
1873.0 0.683 88.9
1874.0 0.681 89.0
1875.0 0.679 89.0
1876.0 0.678 89.0
1877.0 0.676 89.0
1878.0 0.674 89.0
1879.0 0.671 89.1
1880.0 0.669 89.1
1881.0 0.667 89.1
1882.0 0.664 89.1
1883.0 0.662 89.2
1884.0 0.659 89.2
1885.0 0.656 89.2
1886.0 0.653 89.2
1887.0 0.650 89.3
1888.0 0.647 89.3
1889.0 0.644 89.3
1890.0 0.640 89.3
1891.0 0.637 89.4
1892.0 0.633 89.4
1893.0 0.629 89.4
1894.0 0.625 89.5
1895.0 0.621 89.5
1896.0 0.616 89.5
1897.0 0.612 89.5
1898.0 0.607 89.6
1899.0 0.603 89.6
1900.0 0.598 89.6
1901.0 0.593 89.7
1902.0 0.587 89.7
1903.0 0.582 89.7
1904.0 0.576 89.8
1905.0 0.570 89.8
1906.0 0.564 89.8
1907.0 0.558 89.9
1908.0 0.552 89.9
1909.0 0.545 89.9
1910.0 0.538 90.0
1911.0 0.531 90.0
1912.0 0.524 90.0
1913.0 0.516 90.1
1914.0 0.509 90.1
1915.0 0.501 90.2
1916.0 0.492 90.2
1917.0 0.484 90.3
1918.0 0.475 90.3
1919.0 0.466 90.4
1920.0 0.457 90.4
1921.0 0.447 90.5
1922.0 0.437 90.5
1923.0 0.427 90.6
1924.0 0.417 90.6
1925.0 0.406 90.7
1926.0 0.394 90.8
1927.0 0.383 90.8
1928.0 0.371 90.9
1929.0 0.358 91.0
1930.0 0.346 91.1
1931.0 0.332 91.2
1932.0 0.319 91.3
1933.0 0.305 91.4
1934.0 0.290 91.5
1935.0 0.275 91.6
1936.0 0.259 91.8
1937.0 0.243 92.0
1938.0 0.227 92.2
1939.0 0.210 92.4
1940.0 0.192 92.7
1941.0 0.174 93.0
1942.0 0.155 93.4
1943.0 0.136 93.9
1944.0 0.116 94.6
1945.0 0.096 95.6
1946.0 0.075 97.1
1947.0 0.054 99.7
1948.0 0.033 105.8
1949.0 0.013 131.0
1950.0 0.014 233.7
1951.0 0.034 256.1
1952.0 0.055 261.9
1953.0 0.076 264.4
1954.0 0.096 265.9
1955.0 0.116 266.9
1956.0 0.134 267.6
1957.0 0.151 268.1
1958.0 0.167 268.5
1959.0 0.182 268.9
1960.0 0.195 269.2
1961.0 0.207 269.5
1962.0 0.218 269.7
1963.0 0.227 269.9
1964.0 0.235 270.1
1965.0 0.242 270.3
1966.0 0.248 270.5
1967.0 0.253 270.7
1968.0 0.257 270.8
1969.0 0.260 271.0
1970.0 0.263 271.2
1971.0 0.264 271.3
1972.0 0.265 271.5
1973.0 0.266 271.6
1974.0 0.266 271.8
1975.0 0.265 271.9
1976.0 0.264 272.1
1977.0 0.263 272.2
1978.0 0.261 272.4
1979.0 0.259 272.6
1980.0 0.256 272.7
1981.0 0.254 272.9
1982.0 0.251 273.1
1983.0 0.247 273.2
1984.0 0.244 273.4
1985.0 0.240 273.6
1986.0 0.236 273.8
1987.0 0.232 274.0
1988.0 0.228 274.2
1989.0 0.223 274.4
1990.0 0.219 274.6
1991.0 0.214 274.9
1992.0 0.209 275.1
1993.0 0.204 275.3
1994.0 0.199 275.6
1995.0 0.194 275.9
1996.0 0.189 276.2
1997.0 0.184 276.5
1998.0 0.178 276.8
1999.0 0.173 277.2
2000.0 0.167 277.6
2001.0 0.162 278.0
2002.0 0.156 278.4
2003.0 0.151 278.8
2004.0 0.145 279.3
2005.0 0.139 279.9
2006.0 0.133 280.5
2007.0 0.127 281.1
2008.0 0.122 281.8
2009.0 0.116 282.6
2010.0 0.110 283.4
2011.0 0.104 284.4
2012.0 0.098 285.4
2013.0 0.092 286.6
2014.0 0.087 288.0
2015.0 0.081 289.5
2016.0 0.075 291.3
2017.0 0.069 293.4
2018.0 0.064 295.8
2019.0 0.058 298.7
2020.0 0.053 302.2
2021.0 0.048 306.5
2022.0 0.043 311.7
2023.0 0.039 318.2
2024.0 0.035 326.1
2025.0 0.032 335.7
2026.0 0.030 346.7
2027.0 0.030 358.7
2028.0 0.031 10.6
2029.0 0.033 21.5
2030.0 0.036 30.9
2031.0 0.039 38.7
2032.0 0.044 45.0
2033.0 0.048 50.1
2034.0 0.054 54.3
2035.0 0.059 57.8
2036.0 0.064 60.6
2037.0 0.070 63.0
2038.0 0.076 65.1
2039.0 0.081 66.8
2040.0 0.087 68.4
2041.0 0.093 69.7
2042.0 0.099 70.9
2043.0 0.105 71.9
2044.0 0.111 72.8
2045.0 0.117 73.7
2046.0 0.123 74.4
2047.0 0.129 75.1
2048.0 0.135 75.7
2049.0 0.141 76.3
2050.0 0.147 76.8
2051.0 0.153 77.3
2052.0 0.159 77.7
2053.0 0.165 78.2
2054.0 0.170 78.6
2055.0 0.176 78.9
2056.0 0.182 79.2
2057.0 0.188 79.6
2058.0 0.194 79.9
2059.0 0.200 80.1
2060.0 0.206 80.4
2061.0 0.212 80.6
2062.0 0.217 80.9
2063.0 0.223 81.1
2064.0 0.229 81.3
2065.0 0.235 81.5
2066.0 0.241 81.7
2067.0 0.246 81.9
2068.0 0.252 82.1
2069.0 0.258 82.2
2070.0 0.263 82.4
2071.0 0.269 82.5
2072.0 0.274 82.7
2073.0 0.280 82.8
2074.0 0.286 83.0
2075.0 0.291 83.1
2076.0 0.297 83.2
2077.0 0.302 83.3
2078.0 0.308 83.5
2079.0 0.313 83.6
2080.0 0.319 83.7
2081.0 0.324 83.8
2082.0 0.329 83.9
2083.0 0.335 84.0
2084.0 0.340 84.1
2085.0 0.345 84.2
2086.0 0.350 84.3
2087.0 0.356 84.4
2088.0 0.361 84.4
2089.0 0.366 84.5
2090.0 0.371 84.6
2091.0 0.376 84.7
2092.0 0.381 84.7
2093.0 0.386 84.8
2094.0 0.391 84.9
2095.0 0.396 85.0
2096.0 0.401 85.0
2097.0 0.406 85.1
2098.0 0.411 85.2
2099.0 0.416 85.2
2100.0 0.421 85.3
2101.0 0.426 85.3
2102.0 0.431 85.4
2103.0 0.435 85.5
2104.0 0.440 85.5
2105.0 0.445 85.6
2106.0 0.449 85.6
2107.0 0.454 85.7
2108.0 0.459 85.7
2109.0 0.463 85.8
2110.0 0.468 85.8
2111.0 0.472 85.9
2112.0 0.477 85.9
2113.0 0.481 86.0
2114.0 0.485 86.0
2115.0 0.490 86.1
2116.0 0.494 86.1
2117.0 0.498 86.2
2118.0 0.503 86.2
2119.0 0.507 86.2
2120.0 0.511 86.3
2121.0 0.515 86.3
2122.0 0.519 86.4
2123.0 0.523 86.4
2124.0 0.527 86.4
2125.0 0.531 86.5
2126.0 0.535 86.5
2127.0 0.539 86.6
2128.0 0.543 86.6
2129.0 0.547 86.6
2130.0 0.550 86.7
2131.0 0.554 86.7
2132.0 0.558 86.7
2133.0 0.562 86.8
2134.0 0.565 86.8
2135.0 0.569 86.8
2136.0 0.572 86.9
2137.0 0.576 86.9
2138.0 0.579 86.9
2139.0 0.583 87.0
2140.0 0.586 87.0
2141.0 0.589 87.0
2142.0 0.593 87.1
2143.0 0.596 87.1
2144.0 0.599 87.1
2145.0 0.602 87.2
2146.0 0.606 87.2
2147.0 0.609 87.2
2148.0 0.612 87.2
2149.0 0.615 87.3
2150.0 0.618 87.3
2151.0 0.620 87.3
2152.0 0.623 87.4
2153.0 0.626 87.4
2154.0 0.629 87.4
2155.0 0.632 87.4
2156.0 0.634 87.5
2157.0 0.637 87.5
2158.0 0.639 87.5
2159.0 0.642 87.6
2160.0 0.644 87.6
2161.0 0.647 87.6
2162.0 0.649 87.6
2163.0 0.652 87.7
2164.0 0.654 87.7
2165.0 0.656 87.7
2166.0 0.658 87.7
2167.0 0.660 87.8
2168.0 0.662 87.8
2169.0 0.664 87.8
2170.0 0.666 87.8
2171.0 0.668 87.9
2172.0 0.670 87.9
2173.0 0.672 87.9
2174.0 0.674 87.9
2175.0 0.675 87.9
2176.0 0.677 88.0
2177.0 0.678 88.0
2178.0 0.680 88.0
2179.0 0.681 88.0
2180.0 0.683 88.1
2181.0 0.684 88.1
2182.0 0.685 88.1
2183.0 0.686 88.1
2184.0 0.688 88.2
2185.0 0.689 88.2
2186.0 0.690 88.2
2187.0 0.691 88.2
2188.0 0.691 88.3
2189.0 0.692 88.3
2190.0 0.693 88.3
2191.0 0.694 88.3
2192.0 0.694 88.3
2193.0 0.695 88.4
2194.0 0.695 88.4
2195.0 0.696 88.4
2196.0 0.696 88.4
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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