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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:40:52
WDS:
A2784AB
WDS ID/Discoverer
P:
400.100
Orbital period (years)
a:
0.407
Semi-major axis (arcseconds)
i:
44.0
Inclination (degrees)
Ω:
139.7
Longitude of ascending node (degrees)
T:
1895.600
Epoch of periastron passage (year)
e:
0.12
Eccentricity
ω:
276.6
Longitude of periastron (degrees)
Start-Year:
1825.0
Year
End-Year:
2225.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
164646.24+082231.6
Epoch-2000 right ascension and declination
WDS-ID:
16468+0821
WDS designation
Discoverer Code:
A2784AB
Discover designation and components
ADS number:
10206
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
9.8
Magnitude of the primary
V2:
11.0
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2017
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 0.378 175.0
-------------------------
1825.0 0.379 334.4
1826.0 0.377 335.1
1827.0 0.375 335.9
1828.0 0.374 336.6
1829.0 0.372 337.4
1830.0 0.370 338.2
1831.0 0.368 339.0
1832.0 0.366 339.7
1833.0 0.364 340.5
1834.0 0.361 341.4
1835.0 0.359 342.2
1836.0 0.357 343.0
1837.0 0.355 343.8
1838.0 0.353 344.7
1839.0 0.350 345.6
1840.0 0.348 346.4
1841.0 0.346 347.3
1842.0 0.343 348.2
1843.0 0.341 349.1
1844.0 0.339 350.0
1845.0 0.336 351.0
1846.0 0.334 351.9
1847.0 0.331 352.9
1848.0 0.329 353.9
1849.0 0.327 354.9
1850.0 0.324 355.9
1851.0 0.322 356.9
1852.0 0.319 357.9
1853.0 0.317 359.0
1854.0 0.314 0.0
1855.0 0.312 1.1
1856.0 0.310 2.2
1857.0 0.307 3.3
1858.0 0.305 4.5
1859.0 0.302 5.6
1860.0 0.300 6.8
1861.0 0.298 8.0
1862.0 0.295 9.2
1863.0 0.293 10.4
1864.0 0.291 11.7
1865.0 0.289 13.0
1866.0 0.287 14.2
1867.0 0.285 15.5
1868.0 0.283 16.9
1869.0 0.281 18.2
1870.0 0.279 19.6
1871.0 0.277 21.0
1872.0 0.275 22.4
1873.0 0.273 23.8
1874.0 0.272 25.2
1875.0 0.270 26.6
1876.0 0.269 28.1
1877.0 0.267 29.6
1878.0 0.266 31.1
1879.0 0.265 32.6
1880.0 0.264 34.1
1881.0 0.263 35.7
1882.0 0.262 37.2
1883.0 0.261 38.8
1884.0 0.260 40.3
1885.0 0.259 41.9
1886.0 0.259 43.5
1887.0 0.258 45.1
1888.0 0.258 46.7
1889.0 0.258 48.3
1890.0 0.258 49.9
1891.0 0.258 51.5
1892.0 0.258 53.1
1893.0 0.258 54.7
1894.0 0.258 56.3
1895.0 0.259 57.9
1896.0 0.259 59.5
1897.0 0.260 61.0
1898.0 0.261 62.6
1899.0 0.262 64.2
1900.0 0.263 65.7
1901.0 0.264 67.3
1902.0 0.265 68.8
1903.0 0.266 70.3
1904.0 0.267 71.8
1905.0 0.269 73.3
1906.0 0.270 74.7
1907.0 0.272 76.2
1908.0 0.273 77.6
1909.0 0.275 79.0
1910.0 0.277 80.4
1911.0 0.279 81.8
1912.0 0.281 83.2
1913.0 0.282 84.5
1914.0 0.284 85.8
1915.0 0.287 87.2
1916.0 0.289 88.4
1917.0 0.291 89.7
1918.0 0.293 91.0
1919.0 0.295 92.2
1920.0 0.297 93.4
1921.0 0.300 94.6
1922.0 0.302 95.8
1923.0 0.304 96.9
1924.0 0.307 98.1
1925.0 0.309 99.2
1926.0 0.311 100.3
1927.0 0.314 101.4
1928.0 0.316 102.5
1929.0 0.318 103.5
1930.0 0.321 104.6
1931.0 0.323 105.6
1932.0 0.325 106.6
1933.0 0.328 107.6
1934.0 0.330 108.6
1935.0 0.332 109.6
1936.0 0.335 110.5
1937.0 0.337 111.5
1938.0 0.339 112.4
1939.0 0.342 113.3
1940.0 0.344 114.2
1941.0 0.346 115.1
1942.0 0.348 116.0
1943.0 0.350 116.9
1944.0 0.352 117.7
1945.0 0.355 118.6
1946.0 0.357 119.4
1947.0 0.359 120.3
1948.0 0.361 121.1
1949.0 0.363 121.9
1950.0 0.364 122.7
1951.0 0.366 123.5
1952.0 0.368 124.3
1953.0 0.370 125.1
1954.0 0.372 125.8
1955.0 0.373 126.6
1956.0 0.375 127.4
1957.0 0.377 128.1
1958.0 0.378 128.9
1959.0 0.380 129.6
1960.0 0.381 130.3
1961.0 0.382 131.1
1962.0 0.384 131.8
1963.0 0.385 132.5
1964.0 0.386 133.2
1965.0 0.388 133.9
1966.0 0.389 134.7
1967.0 0.390 135.4
1968.0 0.391 136.1
1969.0 0.392 136.8
1970.0 0.393 137.4
1971.0 0.394 138.1
1972.0 0.395 138.8
1973.0 0.395 139.5
1974.0 0.396 140.2
1975.0 0.397 140.9
1976.0 0.398 141.5
1977.0 0.398 142.2
1978.0 0.399 142.9
1979.0 0.399 143.5
1980.0 0.400 144.2
1981.0 0.400 144.9
1982.0 0.400 145.5
1983.0 0.401 146.2
1984.0 0.401 146.9
1985.0 0.401 147.5
1986.0 0.401 148.2
1987.0 0.402 148.8
1988.0 0.402 149.5
1989.0 0.402 150.2
1990.0 0.402 150.8
1991.0 0.402 151.5
1992.0 0.401 152.1
1993.0 0.401 152.8
1994.0 0.401 153.5
1995.0 0.401 154.1
1996.0 0.401 154.8
1997.0 0.400 155.5
1998.0 0.400 156.1
1999.0 0.400 156.8
2000.0 0.399 157.5
2001.0 0.399 158.1
2002.0 0.398 158.8
2003.0 0.398 159.5
2004.0 0.397 160.1
2005.0 0.396 160.8
2006.0 0.396 161.5
2007.0 0.395 162.2
2008.0 0.394 162.9
2009.0 0.394 163.5
2010.0 0.393 164.2
2011.0 0.392 164.9
2012.0 0.391 165.6
2013.0 0.390 166.3
2014.0 0.389 167.0
2015.0 0.389 167.7
2016.0 0.388 168.4
2017.0 0.387 169.1
2018.0 0.386 169.8
2019.0 0.385 170.6
2020.0 0.384 171.3
2021.0 0.383 172.0
2022.0 0.382 172.7
2023.0 0.380 173.5
2024.0 0.379 174.2
2025.0 0.378 175.0
2026.0 0.377 175.7
2027.0 0.376 176.4
2028.0 0.375 177.2
2029.0 0.374 178.0
2030.0 0.373 178.7
2031.0 0.371 179.5
2032.0 0.370 180.3
2033.0 0.369 181.1
2034.0 0.368 181.8
2035.0 0.367 182.6
2036.0 0.365 183.4
2037.0 0.364 184.2
2038.0 0.363 185.0
2039.0 0.362 185.8
2040.0 0.361 186.6
2041.0 0.359 187.5
2042.0 0.358 188.3
2043.0 0.357 189.1
2044.0 0.356 190.0
2045.0 0.355 190.8
2046.0 0.354 191.7
2047.0 0.352 192.5
2048.0 0.351 193.4
2049.0 0.350 194.2
2050.0 0.349 195.1
2051.0 0.348 196.0
2052.0 0.347 196.9
2053.0 0.346 197.7
2054.0 0.345 198.6
2055.0 0.344 199.5
2056.0 0.343 200.4
2057.0 0.342 201.3
2058.0 0.341 202.3
2059.0 0.340 203.2
2060.0 0.339 204.1
2061.0 0.338 205.0
2062.0 0.337 206.0
2063.0 0.337 206.9
2064.0 0.336 207.8
2065.0 0.335 208.8
2066.0 0.334 209.7
2067.0 0.334 210.7
2068.0 0.333 211.6
2069.0 0.332 212.6
2070.0 0.332 213.6
2071.0 0.331 214.5
2072.0 0.331 215.5
2073.0 0.330 216.5
2074.0 0.330 217.5
2075.0 0.329 218.4
2076.0 0.329 219.4
2077.0 0.329 220.4
2078.0 0.328 221.4
2079.0 0.328 222.4
2080.0 0.328 223.4
2081.0 0.328 224.4
2082.0 0.328 225.3
2083.0 0.328 226.3
2084.0 0.328 227.3
2085.0 0.328 228.3
2086.0 0.328 229.3
2087.0 0.328 230.3
2088.0 0.328 231.3
2089.0 0.328 232.3
2090.0 0.328 233.3
2091.0 0.328 234.3
2092.0 0.329 235.3
2093.0 0.329 236.2
2094.0 0.329 237.2
2095.0 0.330 238.2
2096.0 0.330 239.2
2097.0 0.331 240.2
2098.0 0.331 241.1
2099.0 0.332 242.1
2100.0 0.332 243.1
2101.0 0.333 244.0
2102.0 0.333 245.0
2103.0 0.334 245.9
2104.0 0.335 246.9
2105.0 0.336 247.8
2106.0 0.336 248.8
2107.0 0.337 249.7
2108.0 0.338 250.7
2109.0 0.339 251.6
2110.0 0.340 252.5
2111.0 0.341 253.4
2112.0 0.342 254.3
2113.0 0.343 255.3
2114.0 0.344 256.2
2115.0 0.345 257.1
2116.0 0.346 258.0
2117.0 0.347 258.8
2118.0 0.348 259.7
2119.0 0.349 260.6
2120.0 0.350 261.5
2121.0 0.351 262.3
2122.0 0.352 263.2
2123.0 0.354 264.0
2124.0 0.355 264.9
2125.0 0.356 265.7
2126.0 0.357 266.6
2127.0 0.359 267.4
2128.0 0.360 268.2
2129.0 0.361 269.1
2130.0 0.362 269.9
2131.0 0.364 270.7
2132.0 0.365 271.5
2133.0 0.366 272.3
2134.0 0.367 273.1
2135.0 0.369 273.9
2136.0 0.370 274.6
2137.0 0.371 275.4
2138.0 0.373 276.2
2139.0 0.374 276.9
2140.0 0.375 277.7
2141.0 0.376 278.5
2142.0 0.378 279.2
2143.0 0.379 279.9
2144.0 0.380 280.7
2145.0 0.381 281.4
2146.0 0.383 282.1
2147.0 0.384 282.9
2148.0 0.385 283.6
2149.0 0.386 284.3
2150.0 0.387 285.0
2151.0 0.389 285.7
2152.0 0.390 286.4
2153.0 0.391 287.1
2154.0 0.392 287.8
2155.0 0.393 288.5
2156.0 0.394 289.2
2157.0 0.395 289.9
2158.0 0.396 290.6
2159.0 0.397 291.2
2160.0 0.398 291.9
2161.0 0.399 292.6
2162.0 0.400 293.2
2163.0 0.401 293.9
2164.0 0.402 294.6
2165.0 0.403 295.2
2166.0 0.404 295.9
2167.0 0.404 296.5
2168.0 0.405 297.2
2169.0 0.406 297.8
2170.0 0.407 298.5
2171.0 0.407 299.1
2172.0 0.408 299.8
2173.0 0.409 300.4
2174.0 0.409 301.0
2175.0 0.410 301.7
2176.0 0.410 302.3
2177.0 0.411 302.9
2178.0 0.411 303.6
2179.0 0.411 304.2
2180.0 0.412 304.8
2181.0 0.412 305.5
2182.0 0.412 306.1
2183.0 0.412 306.7
2184.0 0.413 307.3
2185.0 0.413 308.0
2186.0 0.413 308.6
2187.0 0.413 309.2
2188.0 0.413 309.8
2189.0 0.413 310.5
2190.0 0.413 311.1
2191.0 0.413 311.7
2192.0 0.412 312.3
2193.0 0.412 313.0
2194.0 0.412 313.6
2195.0 0.412 314.2
2196.0 0.411 314.8
2197.0 0.411 315.5
2198.0 0.410 316.1
2199.0 0.410 316.7
2200.0 0.409 317.4
2201.0 0.409 318.0
2202.0 0.408 318.6
2203.0 0.407 319.3
2204.0 0.406 319.9
2205.0 0.406 320.6
2206.0 0.405 321.2
2207.0 0.404 321.9
2208.0 0.403 322.5
2209.0 0.402 323.2
2210.0 0.401 323.8
2211.0 0.400 324.5
2212.0 0.399 325.2
2213.0 0.397 325.9
2214.0 0.396 326.5
2215.0 0.395 327.2
2216.0 0.394 327.9
2217.0 0.392 328.6
2218.0 0.391 329.3
2219.0 0.389 330.0
2220.0 0.388 330.7
2221.0 0.386 331.4
2222.0 0.384 332.1
2223.0 0.383 332.8
2224.0 0.381 333.6
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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