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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:34:53
WDS:
COU540
WDS ID/Discoverer
P:
262.320
Orbital period (years)
a:
0.282
Semi-major axis (arcseconds)
i:
0.9
Inclination (degrees)
Ω:
13.5
Longitude of ascending node (degrees)
T:
1926.160
Epoch of periastron passage (year)
e:
0.285
Eccentricity
ω:
162.5
Longitude of periastron (degrees)
Start-Year:
1894.0
Year
End-Year:
2156.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
223422.88+262309.4
Epoch-2000 right ascension and declination
WDS-ID:
22344+2623
WDS designation
Discoverer Code:
COU540
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
213919
HD catalog number
Hipparcos number:
.
Hipparcos catalog number
V1:
8.9
Magnitude of the primary
V2:
9.3
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1996
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 0.348 329.5
-------------------------
1894.0 0.239 102.8
1895.0 0.237 104.6
1896.0 0.236 106.5
1897.0 0.234 108.4
1898.0 0.232 110.3
1899.0 0.230 112.3
1900.0 0.228 114.3
1901.0 0.226 116.3
1902.0 0.225 118.4
1903.0 0.223 120.4
1904.0 0.221 122.6
1905.0 0.220 124.7
1906.0 0.218 126.9
1907.0 0.217 129.1
1908.0 0.215 131.3
1909.0 0.214 133.6
1910.0 0.213 135.9
1911.0 0.211 138.2
1912.0 0.210 140.6
1913.0 0.209 143.0
1914.0 0.208 145.4
1915.0 0.207 147.8
1916.0 0.206 150.2
1917.0 0.205 152.7
1918.0 0.205 155.2
1919.0 0.204 157.7
1920.0 0.203 160.2
1921.0 0.203 162.8
1922.0 0.202 165.3
1923.0 0.202 167.9
1924.0 0.202 170.4
1925.0 0.202 173.0
1926.0 0.202 175.6
1927.0 0.202 178.2
1928.0 0.202 180.7
1929.0 0.202 183.3
1930.0 0.202 185.9
1931.0 0.203 188.4
1932.0 0.203 191.0
1933.0 0.204 193.5
1934.0 0.204 196.0
1935.0 0.205 198.5
1936.0 0.206 201.0
1937.0 0.207 203.4
1938.0 0.208 205.9
1939.0 0.209 208.3
1940.0 0.210 210.7
1941.0 0.211 213.0
1942.0 0.212 215.4
1943.0 0.214 217.7
1944.0 0.215 219.9
1945.0 0.216 222.2
1946.0 0.218 224.4
1947.0 0.219 226.6
1948.0 0.221 228.7
1949.0 0.223 230.9
1950.0 0.224 233.0
1951.0 0.226 235.0
1952.0 0.228 237.1
1953.0 0.229 239.1
1954.0 0.231 241.0
1955.0 0.233 243.0
1956.0 0.235 244.9
1957.0 0.237 246.8
1958.0 0.239 248.6
1959.0 0.241 250.4
1960.0 0.243 252.2
1961.0 0.245 254.0
1962.0 0.247 255.7
1963.0 0.249 257.4
1964.0 0.251 259.1
1965.0 0.253 260.8
1966.0 0.255 262.4
1967.0 0.257 264.0
1968.0 0.259 265.6
1969.0 0.261 267.1
1970.0 0.263 268.7
1971.0 0.265 270.2
1972.0 0.267 271.6
1973.0 0.269 273.1
1974.0 0.271 274.6
1975.0 0.273 276.0
1976.0 0.274 277.4
1977.0 0.276 278.7
1978.0 0.278 280.1
1979.0 0.280 281.4
1980.0 0.282 282.8
1981.0 0.284 284.1
1982.0 0.286 285.4
1983.0 0.288 286.6
1984.0 0.290 287.9
1985.0 0.292 289.1
1986.0 0.294 290.3
1987.0 0.295 291.5
1988.0 0.297 292.7
1989.0 0.299 293.9
1990.0 0.301 295.1
1991.0 0.302 296.2
1992.0 0.304 297.4
1993.0 0.306 298.5
1994.0 0.308 299.6
1995.0 0.309 300.7
1996.0 0.311 301.8
1997.0 0.312 302.9
1998.0 0.314 303.9
1999.0 0.316 305.0
2000.0 0.317 306.0
2001.0 0.319 307.1
2002.0 0.320 308.1
2003.0 0.322 309.1
2004.0 0.323 310.1
2005.0 0.325 311.1
2006.0 0.326 312.1
2007.0 0.327 313.1
2008.0 0.329 314.0
2009.0 0.330 315.0
2010.0 0.331 316.0
2011.0 0.333 316.9
2012.0 0.334 317.9
2013.0 0.335 318.8
2014.0 0.336 319.7
2015.0 0.338 320.6
2016.0 0.339 321.6
2017.0 0.340 322.5
2018.0 0.341 323.4
2019.0 0.342 324.3
2020.0 0.343 325.2
2021.0 0.344 326.0
2022.0 0.345 326.9
2023.0 0.346 327.8
2024.0 0.347 328.7
2025.0 0.348 329.5
2026.0 0.349 330.4
2027.0 0.350 331.3
2028.0 0.350 332.1
2029.0 0.351 333.0
2030.0 0.352 333.8
2031.0 0.353 334.7
2032.0 0.353 335.5
2033.0 0.354 336.3
2034.0 0.355 337.2
2035.0 0.355 338.0
2036.0 0.356 338.8
2037.0 0.357 339.6
2038.0 0.357 340.5
2039.0 0.358 341.3
2040.0 0.358 342.1
2041.0 0.359 342.9
2042.0 0.359 343.7
2043.0 0.359 344.5
2044.0 0.360 345.3
2045.0 0.360 346.1
2046.0 0.361 347.0
2047.0 0.361 347.8
2048.0 0.361 348.6
2049.0 0.361 349.4
2050.0 0.362 350.2
2051.0 0.362 351.0
2052.0 0.362 351.8
2053.0 0.362 352.6
2054.0 0.362 353.4
2055.0 0.362 354.2
2056.0 0.362 355.0
2057.0 0.362 355.7
2058.0 0.362 356.5
2059.0 0.362 357.3
2060.0 0.362 358.1
2061.0 0.362 358.9
2062.0 0.362 359.7
2063.0 0.362 0.5
2064.0 0.362 1.3
2065.0 0.362 2.1
2066.0 0.361 2.9
2067.0 0.361 3.7
2068.0 0.361 4.5
2069.0 0.360 5.3
2070.0 0.360 6.1
2071.0 0.360 7.0
2072.0 0.359 7.8
2073.0 0.359 8.6
2074.0 0.358 9.4
2075.0 0.358 10.2
2076.0 0.358 11.0
2077.0 0.357 11.8
2078.0 0.356 12.7
2079.0 0.356 13.5
2080.0 0.355 14.3
2081.0 0.355 15.1
2082.0 0.354 16.0
2083.0 0.353 16.8
2084.0 0.352 17.7
2085.0 0.352 18.5
2086.0 0.351 19.3
2087.0 0.350 20.2
2088.0 0.349 21.1
2089.0 0.348 21.9
2090.0 0.348 22.8
2091.0 0.347 23.6
2092.0 0.346 24.5
2093.0 0.345 25.4
2094.0 0.344 26.3
2095.0 0.343 27.2
2096.0 0.342 28.1
2097.0 0.341 29.0
2098.0 0.339 29.9
2099.0 0.338 30.8
2100.0 0.337 31.7
2101.0 0.336 32.6
2102.0 0.335 33.5
2103.0 0.333 34.5
2104.0 0.332 35.4
2105.0 0.331 36.4
2106.0 0.330 37.3
2107.0 0.328 38.3
2108.0 0.327 39.3
2109.0 0.326 40.3
2110.0 0.324 41.3
2111.0 0.323 42.3
2112.0 0.321 43.3
2113.0 0.320 44.3
2114.0 0.318 45.3
2115.0 0.317 46.3
2116.0 0.315 47.4
2117.0 0.314 48.5
2118.0 0.312 49.5
2119.0 0.310 50.6
2120.0 0.309 51.7
2121.0 0.307 52.8
2122.0 0.305 53.9
2123.0 0.304 55.0
2124.0 0.302 56.2
2125.0 0.300 57.3
2126.0 0.298 58.5
2127.0 0.297 59.7
2128.0 0.295 60.9
2129.0 0.293 62.1
2130.0 0.291 63.3
2131.0 0.289 64.6
2132.0 0.287 65.8
2133.0 0.285 67.1
2134.0 0.284 68.4
2135.0 0.282 69.7
2136.0 0.280 71.0
2137.0 0.278 72.4
2138.0 0.276 73.7
2139.0 0.274 75.1
2140.0 0.272 76.5
2141.0 0.270 78.0
2142.0 0.268 79.4
2143.0 0.266 80.9
2144.0 0.264 82.4
2145.0 0.262 83.9
2146.0 0.260 85.4
2147.0 0.258 87.0
2148.0 0.256 88.6
2149.0 0.254 90.2
2150.0 0.252 91.8
2151.0 0.250 93.5
2152.0 0.248 95.2
2153.0 0.246 96.9
2154.0 0.244 98.6
2155.0 0.242 100.4
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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