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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:30:20
WDS:
A2681
WDS ID/Discoverer
P:
208.330
Orbital period (years)
a:
0.273
Semi-major axis (arcseconds)
i:
119.4
Inclination (degrees)
Ω:
118.2
Longitude of ascending node (degrees)
T:
1938.470
Epoch of periastron passage (year)
e:
0.793
Eccentricity
ω:
339.1
Longitude of periastron (degrees)
Start-Year:
1921.0
Year
End-Year:
2129.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
065729.02+025316.8
Epoch-2000 right ascension and declination
WDS-ID:
06575+0253
WDS designation
Discoverer Code:
A2681
Discover designation and components
ADS number:
5625
Aitken Double Star catalog
HD number:
51449
HD catalog number
Hipparcos number:
33474
Hipparcos catalog number
V1:
9.46
Magnitude of the primary
V2:
7.71
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1997
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 0.441 312.1
-------------------------
1921.0 0.194 283.7
1922.0 0.185 282.6
1923.0 0.175 281.4
1924.0 0.164 280.1
1925.0 0.153 278.6
1926.0 0.142 276.8
1927.0 0.131 274.7
1928.0 0.119 272.3
1929.0 0.107 269.2
1930.0 0.094 265.4
1931.0 0.081 260.4
1932.0 0.068 253.4
1933.0 0.056 243.4
1934.0 0.045 228.1
1935.0 0.038 205.5
1936.0 0.038 177.8
1937.0 0.043 153.4
1938.0 0.050 135.5
1939.0 0.057 122.1
1940.0 0.060 110.9
1941.0 0.061 100.4
1942.0 0.060 89.9
1943.0 0.059 79.1
1944.0 0.059 68.0
1945.0 0.060 57.0
1946.0 0.062 46.4
1947.0 0.065 36.8
1948.0 0.069 28.2
1949.0 0.075 20.8
1950.0 0.081 14.4
1951.0 0.087 8.9
1952.0 0.094 4.2
1953.0 0.101 0.1
1954.0 0.108 356.6
1955.0 0.116 353.6
1956.0 0.123 350.9
1957.0 0.131 348.5
1958.0 0.138 346.3
1959.0 0.145 344.4
1960.0 0.153 342.7
1961.0 0.160 341.1
1962.0 0.167 339.7
1963.0 0.174 338.3
1964.0 0.181 337.1
1965.0 0.188 336.0
1966.0 0.195 334.9
1967.0 0.202 334.0
1968.0 0.208 333.0
1969.0 0.215 332.2
1970.0 0.221 331.4
1971.0 0.227 330.6
1972.0 0.234 329.9
1973.0 0.240 329.2
1974.0 0.246 328.5
1975.0 0.252 327.9
1976.0 0.257 327.3
1977.0 0.263 326.7
1978.0 0.269 326.2
1979.0 0.274 325.7
1980.0 0.280 325.2
1981.0 0.285 324.7
1982.0 0.290 324.2
1983.0 0.296 323.8
1984.0 0.301 323.3
1985.0 0.306 322.9
1986.0 0.311 322.5
1987.0 0.315 322.1
1988.0 0.320 321.7
1989.0 0.325 321.4
1990.0 0.329 321.0
1991.0 0.334 320.7
1992.0 0.338 320.3
1993.0 0.343 320.0
1994.0 0.347 319.7
1995.0 0.351 319.4
1996.0 0.355 319.0
1997.0 0.359 318.7
1998.0 0.363 318.4
1999.0 0.367 318.2
2000.0 0.371 317.9
2001.0 0.374 317.6
2002.0 0.378 317.3
2003.0 0.382 317.1
2004.0 0.385 316.8
2005.0 0.388 316.5
2006.0 0.392 316.3
2007.0 0.395 316.0
2008.0 0.398 315.8
2009.0 0.401 315.6
2010.0 0.404 315.3
2011.0 0.407 315.1
2012.0 0.410 314.9
2013.0 0.413 314.6
2014.0 0.416 314.4
2015.0 0.418 314.2
2016.0 0.421 314.0
2017.0 0.424 313.7
2018.0 0.426 313.5
2019.0 0.429 313.3
2020.0 0.431 313.1
2021.0 0.433 312.9
2022.0 0.435 312.7
2023.0 0.437 312.5
2024.0 0.439 312.3
2025.0 0.441 312.1
2026.0 0.443 311.9
2027.0 0.445 311.7
2028.0 0.447 311.5
2029.0 0.449 311.3
2030.0 0.450 311.1
2031.0 0.452 310.9
2032.0 0.453 310.8
2033.0 0.455 310.6
2034.0 0.456 310.4
2035.0 0.458 310.2
2036.0 0.459 310.0
2037.0 0.460 309.8
2038.0 0.461 309.6
2039.0 0.462 309.5
2040.0 0.463 309.3
2041.0 0.464 309.1
2042.0 0.465 308.9
2043.0 0.466 308.8
2044.0 0.466 308.6
2045.0 0.467 308.4
2046.0 0.467 308.2
2047.0 0.468 308.0
2048.0 0.468 307.9
2049.0 0.469 307.7
2050.0 0.469 307.5
2051.0 0.469 307.3
2052.0 0.469 307.2
2053.0 0.469 307.0
2054.0 0.469 306.8
2055.0 0.469 306.6
2056.0 0.469 306.5
2057.0 0.469 306.3
2058.0 0.468 306.1
2059.0 0.468 305.9
2060.0 0.468 305.8
2061.0 0.467 305.6
2062.0 0.466 305.4
2063.0 0.466 305.2
2064.0 0.465 305.1
2065.0 0.464 304.9
2066.0 0.463 304.7
2067.0 0.462 304.5
2068.0 0.461 304.3
2069.0 0.460 304.2
2070.0 0.459 304.0
2071.0 0.458 303.8
2072.0 0.456 303.6
2073.0 0.455 303.4
2074.0 0.453 303.2
2075.0 0.452 303.0
2076.0 0.450 302.9
2077.0 0.448 302.7
2078.0 0.446 302.5
2079.0 0.444 302.3
2080.0 0.442 302.1
2081.0 0.440 301.9
2082.0 0.438 301.7
2083.0 0.436 301.5
2084.0 0.433 301.3
2085.0 0.431 301.1
2086.0 0.428 300.9
2087.0 0.426 300.7
2088.0 0.423 300.4
2089.0 0.420 300.2
2090.0 0.417 300.0
2091.0 0.414 299.8
2092.0 0.411 299.6
2093.0 0.408 299.3
2094.0 0.404 299.1
2095.0 0.401 298.9
2096.0 0.397 298.6
2097.0 0.393 298.4
2098.0 0.390 298.1
2099.0 0.386 297.9
2100.0 0.382 297.6
2101.0 0.378 297.3
2102.0 0.373 297.1
2103.0 0.369 296.8
2104.0 0.364 296.5
2105.0 0.360 296.2
2106.0 0.355 295.9
2107.0 0.350 295.6
2108.0 0.345 295.3
2109.0 0.340 294.9
2110.0 0.334 294.6
2111.0 0.329 294.2
2112.0 0.323 293.9
2113.0 0.317 293.5
2114.0 0.311 293.1
2115.0 0.305 292.7
2116.0 0.299 292.3
2117.0 0.292 291.9
2118.0 0.286 291.4
2119.0 0.279 290.9
2120.0 0.272 290.4
2121.0 0.264 289.9
2122.0 0.257 289.3
2123.0 0.249 288.7
2124.0 0.241 288.1
2125.0 0.233 287.4
2126.0 0.225 286.6
2127.0 0.216 285.8
2128.0 0.207 285.0
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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