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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:39:16
WDS:
BU180AB
WDS ID/Discoverer
P:
537.000
Orbital period (years)
a:
0.517
Semi-major axis (arcseconds)
i:
133.4
Inclination (degrees)
Ω:
161.8
Longitude of ascending node (degrees)
T:
2201.930
Epoch of periastron passage (year)
e:
0.198
Eccentricity
ω:
180.4
Longitude of periastron (degrees)
Start-Year:
1757.0
Year
End-Year:
2293.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
230709.99+604957.1
Epoch-2000 right ascension and declination
WDS-ID:
23072+6050
WDS designation
Discoverer Code:
BU180AB
Discover designation and components
ADS number:
16518
Aitken Double Star catalog
HD number:
218439
HD catalog number
Hipparcos number:
114161
Hipparcos catalog number
V1:
7.95
Magnitude of the primary
V2:
9.23
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2006
Date of last observation
Orbit grade:
4
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 0.499 128.0
-------------------------
1757.0 0.336 260.2
1758.0 0.336 259.2
1759.0 0.337 258.1
1760.0 0.337 257.0
1761.0 0.338 256.0
1762.0 0.339 254.9
1763.0 0.339 253.9
1764.0 0.340 252.8
1765.0 0.341 251.8
1766.0 0.342 250.8
1767.0 0.343 249.7
1768.0 0.344 248.7
1769.0 0.345 247.7
1770.0 0.346 246.7
1771.0 0.347 245.7
1772.0 0.348 244.7
1773.0 0.349 243.7
1774.0 0.351 242.7
1775.0 0.352 241.7
1776.0 0.353 240.7
1777.0 0.355 239.8
1778.0 0.356 238.8
1779.0 0.358 237.9
1780.0 0.360 236.9
1781.0 0.361 236.0
1782.0 0.363 235.1
1783.0 0.365 234.2
1784.0 0.367 233.3
1785.0 0.368 232.4
1786.0 0.370 231.5
1787.0 0.372 230.6
1788.0 0.374 229.8
1789.0 0.376 228.9
1790.0 0.378 228.1
1791.0 0.380 227.2
1792.0 0.382 226.4
1793.0 0.384 225.6
1794.0 0.386 224.7
1795.0 0.389 223.9
1796.0 0.391 223.2
1797.0 0.393 222.4
1798.0 0.395 221.6
1799.0 0.398 220.8
1800.0 0.400 220.1
1801.0 0.402 219.3
1802.0 0.404 218.6
1803.0 0.407 217.8
1804.0 0.409 217.1
1805.0 0.412 216.4
1806.0 0.414 215.7
1807.0 0.416 215.0
1808.0 0.419 214.3
1809.0 0.421 213.6
1810.0 0.424 212.9
1811.0 0.426 212.3
1812.0 0.429 211.6
1813.0 0.431 210.9
1814.0 0.433 210.3
1815.0 0.436 209.7
1816.0 0.438 209.0
1817.0 0.441 208.4
1818.0 0.443 207.8
1819.0 0.446 207.2
1820.0 0.448 206.6
1821.0 0.451 206.0
1822.0 0.453 205.4
1823.0 0.456 204.8
1824.0 0.458 204.2
1825.0 0.461 203.7
1826.0 0.463 203.1
1827.0 0.466 202.5
1828.0 0.468 202.0
1829.0 0.471 201.4
1830.0 0.473 200.9
1831.0 0.476 200.4
1832.0 0.478 199.8
1833.0 0.481 199.3
1834.0 0.483 198.8
1835.0 0.486 198.3
1836.0 0.488 197.8
1837.0 0.490 197.3
1838.0 0.493 196.8
1839.0 0.495 196.3
1840.0 0.498 195.8
1841.0 0.500 195.3
1842.0 0.502 194.8
1843.0 0.505 194.3
1844.0 0.507 193.9
1845.0 0.509 193.4
1846.0 0.511 192.9
1847.0 0.514 192.5
1848.0 0.516 192.0
1849.0 0.518 191.6
1850.0 0.520 191.1
1851.0 0.523 190.7
1852.0 0.525 190.2
1853.0 0.527 189.8
1854.0 0.529 189.4
1855.0 0.531 188.9
1856.0 0.533 188.5
1857.0 0.536 188.1
1858.0 0.538 187.7
1859.0 0.540 187.2
1860.0 0.542 186.8
1861.0 0.544 186.4
1862.0 0.546 186.0
1863.0 0.548 185.6
1864.0 0.550 185.2
1865.0 0.552 184.8
1866.0 0.553 184.4
1867.0 0.555 184.0
1868.0 0.557 183.6
1869.0 0.559 183.2
1870.0 0.561 182.9
1871.0 0.563 182.5
1872.0 0.564 182.1
1873.0 0.566 181.7
1874.0 0.568 181.3
1875.0 0.569 181.0
1876.0 0.571 180.6
1877.0 0.573 180.2
1878.0 0.574 179.9
1879.0 0.576 179.5
1880.0 0.578 179.1
1881.0 0.579 178.8
1882.0 0.581 178.4
1883.0 0.582 178.1
1884.0 0.584 177.7
1885.0 0.585 177.4
1886.0 0.586 177.0
1887.0 0.588 176.7
1888.0 0.589 176.3
1889.0 0.590 176.0
1890.0 0.592 175.6
1891.0 0.593 175.3
1892.0 0.594 174.9
1893.0 0.595 174.6
1894.0 0.597 174.2
1895.0 0.598 173.9
1896.0 0.599 173.6
1897.0 0.600 173.2
1898.0 0.601 172.9
1899.0 0.602 172.6
1900.0 0.603 172.2
1901.0 0.604 171.9
1902.0 0.605 171.6
1903.0 0.606 171.2
1904.0 0.607 170.9
1905.0 0.608 170.6
1906.0 0.608 170.3
1907.0 0.609 169.9
1908.0 0.610 169.6
1909.0 0.611 169.3
1910.0 0.611 169.0
1911.0 0.612 168.6
1912.0 0.613 168.3
1913.0 0.613 168.0
1914.0 0.614 167.7
1915.0 0.615 167.4
1916.0 0.615 167.0
1917.0 0.616 166.7
1918.0 0.616 166.4
1919.0 0.616 166.1
1920.0 0.617 165.8
1921.0 0.617 165.4
1922.0 0.618 165.1
1923.0 0.618 164.8
1924.0 0.618 164.5
1925.0 0.618 164.2
1926.0 0.619 163.9
1927.0 0.619 163.5
1928.0 0.619 163.2
1929.0 0.619 162.9
1930.0 0.619 162.6
1931.0 0.619 162.3
1932.0 0.619 162.0
1933.0 0.619 161.7
1934.0 0.619 161.3
1935.0 0.619 161.0
1936.0 0.619 160.7
1937.0 0.619 160.4
1938.0 0.619 160.1
1939.0 0.619 159.8
1940.0 0.619 159.5
1941.0 0.618 159.1
1942.0 0.618 158.8
1943.0 0.618 158.5
1944.0 0.617 158.2
1945.0 0.617 157.9
1946.0 0.617 157.6
1947.0 0.616 157.2
1948.0 0.616 156.9
1949.0 0.615 156.6
1950.0 0.615 156.3
1951.0 0.614 156.0
1952.0 0.614 155.6
1953.0 0.613 155.3
1954.0 0.613 155.0
1955.0 0.612 154.7
1956.0 0.611 154.4
1957.0 0.610 154.0
1958.0 0.610 153.7
1959.0 0.609 153.4
1960.0 0.608 153.1
1961.0 0.607 152.7
1962.0 0.606 152.4
1963.0 0.606 152.1
1964.0 0.605 151.7
1965.0 0.604 151.4
1966.0 0.603 151.1
1967.0 0.602 150.8
1968.0 0.601 150.4
1969.0 0.600 150.1
1970.0 0.598 149.7
1971.0 0.597 149.4
1972.0 0.596 149.1
1973.0 0.595 148.7
1974.0 0.594 148.4
1975.0 0.593 148.0
1976.0 0.591 147.7
1977.0 0.590 147.4
1978.0 0.589 147.0
1979.0 0.587 146.7
1980.0 0.586 146.3
1981.0 0.585 146.0
1982.0 0.583 145.6
1983.0 0.582 145.2
1984.0 0.580 144.9
1985.0 0.579 144.5
1986.0 0.577 144.2
1987.0 0.576 143.8
1988.0 0.574 143.4
1989.0 0.572 143.1
1990.0 0.571 142.7
1991.0 0.569 142.3
1992.0 0.567 142.0
1993.0 0.566 141.6
1994.0 0.564 141.2
1995.0 0.562 140.8
1996.0 0.560 140.4
1997.0 0.559 140.1
1998.0 0.557 139.7
1999.0 0.555 139.3
2000.0 0.553 138.9
2001.0 0.551 138.5
2002.0 0.549 138.1
2003.0 0.547 137.7
2004.0 0.545 137.3
2005.0 0.543 136.9
2006.0 0.541 136.5
2007.0 0.539 136.0
2008.0 0.537 135.6
2009.0 0.535 135.2
2010.0 0.533 134.8
2011.0 0.531 134.4
2012.0 0.529 133.9
2013.0 0.527 133.5
2014.0 0.524 133.1
2015.0 0.522 132.6
2016.0 0.520 132.2
2017.0 0.518 131.7
2018.0 0.516 131.3
2019.0 0.513 130.8
2020.0 0.511 130.4
2021.0 0.509 129.9
2022.0 0.506 129.4
2023.0 0.504 129.0
2024.0 0.502 128.5
2025.0 0.499 128.0
2026.0 0.497 127.5
2027.0 0.495 127.0
2028.0 0.492 126.5
2029.0 0.490 126.0
2030.0 0.488 125.5
2031.0 0.485 125.0
2032.0 0.483 124.5
2033.0 0.480 124.0
2034.0 0.478 123.4
2035.0 0.475 122.9
2036.0 0.473 122.4
2037.0 0.470 121.8
2038.0 0.468 121.3
2039.0 0.466 120.7
2040.0 0.463 120.2
2041.0 0.461 119.6
2042.0 0.458 119.0
2043.0 0.456 118.5
2044.0 0.453 117.9
2045.0 0.451 117.3
2046.0 0.448 116.7
2047.0 0.446 116.1
2048.0 0.443 115.5
2049.0 0.441 114.9
2050.0 0.438 114.2
2051.0 0.436 113.6
2052.0 0.433 113.0
2053.0 0.431 112.3
2054.0 0.428 111.7
2055.0 0.426 111.0
2056.0 0.423 110.3
2057.0 0.421 109.6
2058.0 0.419 109.0
2059.0 0.416 108.3
2060.0 0.414 107.6
2061.0 0.411 106.9
2062.0 0.409 106.1
2063.0 0.407 105.4
2064.0 0.404 104.7
2065.0 0.402 103.9
2066.0 0.400 103.2
2067.0 0.398 102.4
2068.0 0.395 101.7
2069.0 0.393 100.9
2070.0 0.391 100.1
2071.0 0.389 99.3
2072.0 0.387 98.5
2073.0 0.384 97.7
2074.0 0.382 96.9
2075.0 0.380 96.0
2076.0 0.378 95.2
2077.0 0.376 94.4
2078.0 0.374 93.5
2079.0 0.372 92.6
2080.0 0.371 91.8
2081.0 0.369 90.9
2082.0 0.367 90.0
2083.0 0.365 89.1
2084.0 0.363 88.2
2085.0 0.362 87.3
2086.0 0.360 86.3
2087.0 0.359 85.4
2088.0 0.357 84.5
2089.0 0.355 83.5
2090.0 0.354 82.5
2091.0 0.353 81.6
2092.0 0.351 80.6
2093.0 0.350 79.6
2094.0 0.349 78.6
2095.0 0.348 77.6
2096.0 0.346 76.6
2097.0 0.345 75.6
2098.0 0.344 74.6
2099.0 0.343 73.6
2100.0 0.342 72.6
2101.0 0.342 71.5
2102.0 0.341 70.5
2103.0 0.340 69.5
2104.0 0.339 68.4
2105.0 0.339 67.4
2106.0 0.338 66.3
2107.0 0.338 65.2
2108.0 0.337 64.2
2109.0 0.337 63.1
2110.0 0.337 62.1
2111.0 0.336 61.0
2112.0 0.336 59.9
2113.0 0.336 58.9
2114.0 0.336 57.8
2115.0 0.336 56.7
2116.0 0.336 55.6
2117.0 0.336 54.6
2118.0 0.336 53.5
2119.0 0.336 52.4
2120.0 0.337 51.4
2121.0 0.337 50.3
2122.0 0.337 49.3
2123.0 0.338 48.2
2124.0 0.338 47.1
2125.0 0.339 46.1
2126.0 0.340 45.0
2127.0 0.340 44.0
2128.0 0.341 43.0
2129.0 0.342 41.9
2130.0 0.343 40.9
2131.0 0.343 39.9
2132.0 0.344 38.8
2133.0 0.345 37.8
2134.0 0.346 36.8
2135.0 0.347 35.8
2136.0 0.348 34.8
2137.0 0.349 33.8
2138.0 0.350 32.8
2139.0 0.352 31.9
2140.0 0.353 30.9
2141.0 0.354 29.9
2142.0 0.355 29.0
2143.0 0.356 28.0
2144.0 0.358 27.1
2145.0 0.359 26.1
2146.0 0.360 25.2
2147.0 0.362 24.3
2148.0 0.363 23.3
2149.0 0.364 22.4
2150.0 0.366 21.5
2151.0 0.367 20.6
2152.0 0.369 19.7
2153.0 0.370 18.8
2154.0 0.371 18.0
2155.0 0.373 17.1
2156.0 0.374 16.2
2157.0 0.376 15.4
2158.0 0.377 14.5
2159.0 0.378 13.7
2160.0 0.380 12.8
2161.0 0.381 12.0
2162.0 0.383 11.2
2163.0 0.384 10.4
2164.0 0.385 9.5
2165.0 0.387 8.7
2166.0 0.388 7.9
2167.0 0.389 7.1
2168.0 0.391 6.3
2169.0 0.392 5.5
2170.0 0.393 4.8
2171.0 0.394 4.0
2172.0 0.396 3.2
2173.0 0.397 2.4
2174.0 0.398 1.7
2175.0 0.399 0.9
2176.0 0.400 0.2
2177.0 0.401 359.4
2178.0 0.402 358.7
2179.0 0.403 357.9
2180.0 0.404 357.2
2181.0 0.405 356.4
2182.0 0.406 355.7
2183.0 0.407 355.0
2184.0 0.408 354.3
2185.0 0.408 353.5
2186.0 0.409 352.8
2187.0 0.410 352.1
2188.0 0.410 351.4
2189.0 0.411 350.7
2190.0 0.412 349.9
2191.0 0.412 349.2
2192.0 0.413 348.5
2193.0 0.413 347.8
2194.0 0.413 347.1
2195.0 0.414 346.4
2196.0 0.414 345.7
2197.0 0.414 345.0
2198.0 0.414 344.3
2199.0 0.415 343.6
2200.0 0.415 342.9
2201.0 0.415 342.2
2202.0 0.415 341.5
2203.0 0.415 340.8
2204.0 0.414 340.1
2205.0 0.414 339.4
2206.0 0.414 338.7
2207.0 0.414 338.0
2208.0 0.414 337.3
2209.0 0.413 336.6
2210.0 0.413 335.8
2211.0 0.412 335.1
2212.0 0.412 334.4
2213.0 0.411 333.7
2214.0 0.411 333.0
2215.0 0.410 332.3
2216.0 0.410 331.6
2217.0 0.409 330.8
2218.0 0.408 330.1
2219.0 0.407 329.4
2220.0 0.407 328.7
2221.0 0.406 327.9
2222.0 0.405 327.2
2223.0 0.404 326.5
2224.0 0.403 325.7
2225.0 0.402 325.0
2226.0 0.401 324.2
2227.0 0.400 323.5
2228.0 0.399 322.7
2229.0 0.398 322.0
2230.0 0.396 321.2
2231.0 0.395 320.4
2232.0 0.394 319.6
2233.0 0.393 318.9
2234.0 0.391 318.1
2235.0 0.390 317.3
2236.0 0.389 316.5
2237.0 0.388 315.7
2238.0 0.386 314.9
2239.0 0.385 314.1
2240.0 0.383 313.3
2241.0 0.382 312.4
2242.0 0.381 311.6
2243.0 0.379 310.8
2244.0 0.378 309.9
2245.0 0.376 309.1
2246.0 0.375 308.2
2247.0 0.374 307.4
2248.0 0.372 306.5
2249.0 0.371 305.6
2250.0 0.369 304.7
2251.0 0.368 303.9
2252.0 0.366 303.0
2253.0 0.365 302.1
2254.0 0.364 301.1
2255.0 0.362 300.2
2256.0 0.361 299.3
2257.0 0.360 298.4
2258.0 0.358 297.4
2259.0 0.357 296.5
2260.0 0.356 295.5
2261.0 0.354 294.6
2262.0 0.353 293.6
2263.0 0.352 292.7
2264.0 0.351 291.7
2265.0 0.350 290.7
2266.0 0.348 289.7
2267.0 0.347 288.7
2268.0 0.346 287.7
2269.0 0.345 286.7
2270.0 0.344 285.7
2271.0 0.343 284.7
2272.0 0.342 283.6
2273.0 0.342 282.6
2274.0 0.341 281.6
2275.0 0.340 280.5
2276.0 0.339 279.5
2277.0 0.339 278.4
2278.0 0.338 277.4
2279.0 0.338 276.3
2280.0 0.337 275.2
2281.0 0.337 274.2
2282.0 0.336 273.1
2283.0 0.336 272.0
2284.0 0.336 271.0
2285.0 0.335 269.9
2286.0 0.335 268.8
2287.0 0.335 267.8
2288.0 0.335 266.7
2289.0 0.335 265.6
2290.0 0.335 264.5
2291.0 0.335 263.5
2292.0 0.335 262.4
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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