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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:51:37
WDS:
A980AB
WDS ID/Discoverer
P:
231.000
Orbital period (years)
a:
0.38
Semi-major axis (arcseconds)
i:
133.4
Inclination (degrees)
Ω:
147.7
Longitude of ascending node (degrees)
T:
1961.000
Epoch of periastron passage (year)
e:
0.18
Eccentricity
ω:
68.0
Longitude of periastron (degrees)
Start-Year:
1910.0
Year
End-Year:
2140.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
032823.56+601520.6
Epoch-2000 right ascension and declination
WDS-ID:
03284+6015
WDS designation
Discoverer Code:
A980AB
Discover designation and components
ADS number:
2538
Aitken Double Star catalog
HD number:
21203
HD catalog number
Hipparcos number:
16177
Hipparcos catalog number
V1:
6.73
Magnitude of the primary
V2:
8.29
Magnitude of the secondary
Equinox:
1950
Equinox
Date:
1988
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 0.401 322.9
-------------------------
1910.0 0.350 171.1
1911.0 0.351 169.8
1912.0 0.352 168.6
1913.0 0.352 167.4
1914.0 0.353 166.2
1915.0 0.353 164.9
1916.0 0.354 163.7
1917.0 0.354 162.5
1918.0 0.354 161.3
1919.0 0.354 160.1
1920.0 0.354 158.9
1921.0 0.353 157.6
1922.0 0.353 156.4
1923.0 0.352 155.2
1924.0 0.351 154.0
1925.0 0.350 152.7
1926.0 0.349 151.5
1927.0 0.348 150.2
1928.0 0.346 149.0
1929.0 0.344 147.7
1930.0 0.343 146.4
1931.0 0.341 145.1
1932.0 0.338 143.8
1933.0 0.336 142.4
1934.0 0.334 141.1
1935.0 0.331 139.7
1936.0 0.328 138.3
1937.0 0.325 136.9
1938.0 0.322 135.4
1939.0 0.319 133.9
1940.0 0.315 132.4
1941.0 0.311 130.9
1942.0 0.308 129.3
1943.0 0.304 127.7
1944.0 0.300 126.0
1945.0 0.296 124.3
1946.0 0.292 122.5
1947.0 0.287 120.7
1948.0 0.283 118.8
1949.0 0.279 116.9
1950.0 0.274 114.9
1951.0 0.270 112.9
1952.0 0.265 110.7
1953.0 0.261 108.5
1954.0 0.257 106.3
1955.0 0.253 103.9
1956.0 0.248 101.5
1957.0 0.244 99.0
1958.0 0.241 96.4
1959.0 0.237 93.7
1960.0 0.233 91.0
1961.0 0.230 88.2
1962.0 0.227 85.3
1963.0 0.225 82.3
1964.0 0.222 79.2
1965.0 0.220 76.1
1966.0 0.219 73.0
1967.0 0.218 69.8
1968.0 0.217 66.5
1969.0 0.216 63.3
1970.0 0.216 60.0
1971.0 0.217 56.8
1972.0 0.217 53.6
1973.0 0.219 50.4
1974.0 0.220 47.2
1975.0 0.222 44.1
1976.0 0.225 41.1
1977.0 0.227 38.1
1978.0 0.230 35.2
1979.0 0.234 32.3
1980.0 0.237 29.6
1981.0 0.241 26.9
1982.0 0.245 24.4
1983.0 0.249 21.9
1984.0 0.254 19.5
1985.0 0.258 17.1
1986.0 0.263 14.9
1987.0 0.268 12.7
1988.0 0.273 10.7
1989.0 0.277 8.7
1990.0 0.282 6.7
1991.0 0.287 4.8
1992.0 0.292 3.0
1993.0 0.297 1.3
1994.0 0.302 359.6
1995.0 0.307 357.9
1996.0 0.312 356.4
1997.0 0.317 354.8
1998.0 0.321 353.3
1999.0 0.326 351.9
2000.0 0.331 350.5
2001.0 0.335 349.1
2002.0 0.339 347.8
2003.0 0.343 346.5
2004.0 0.348 345.2
2005.0 0.352 343.9
2006.0 0.355 342.7
2007.0 0.359 341.5
2008.0 0.363 340.4
2009.0 0.366 339.2
2010.0 0.369 338.1
2011.0 0.373 337.0
2012.0 0.376 335.9
2013.0 0.378 334.8
2014.0 0.381 333.8
2015.0 0.384 332.7
2016.0 0.386 331.7
2017.0 0.388 330.7
2018.0 0.390 329.7
2019.0 0.392 328.7
2020.0 0.394 327.7
2021.0 0.396 326.7
2022.0 0.397 325.8
2023.0 0.399 324.8
2024.0 0.400 323.9
2025.0 0.401 322.9
2026.0 0.402 322.0
2027.0 0.403 321.0
2028.0 0.404 320.1
2029.0 0.404 319.2
2030.0 0.405 318.2
2031.0 0.405 317.3
2032.0 0.405 316.4
2033.0 0.405 315.4
2034.0 0.405 314.5
2035.0 0.405 313.6
2036.0 0.405 312.7
2037.0 0.404 311.7
2038.0 0.404 310.8
2039.0 0.403 309.9
2040.0 0.402 308.9
2041.0 0.401 308.0
2042.0 0.400 307.0
2043.0 0.399 306.1
2044.0 0.398 305.1
2045.0 0.397 304.2
2046.0 0.395 303.2
2047.0 0.394 302.2
2048.0 0.392 301.2
2049.0 0.391 300.2
2050.0 0.389 299.2
2051.0 0.387 298.2
2052.0 0.386 297.2
2053.0 0.384 296.2
2054.0 0.382 295.2
2055.0 0.380 294.1
2056.0 0.378 293.0
2057.0 0.376 292.0
2058.0 0.374 290.9
2059.0 0.371 289.8
2060.0 0.369 288.7
2061.0 0.367 287.6
2062.0 0.365 286.4
2063.0 0.362 285.3
2064.0 0.360 284.1
2065.0 0.358 282.9
2066.0 0.355 281.7
2067.0 0.353 280.5
2068.0 0.351 279.3
2069.0 0.348 278.0
2070.0 0.346 276.8
2071.0 0.344 275.5
2072.0 0.341 274.2
2073.0 0.339 272.9
2074.0 0.337 271.6
2075.0 0.335 270.2
2076.0 0.332 268.8
2077.0 0.330 267.5
2078.0 0.328 266.1
2079.0 0.326 264.6
2080.0 0.324 263.2
2081.0 0.322 261.7
2082.0 0.320 260.3
2083.0 0.319 258.8
2084.0 0.317 257.3
2085.0 0.315 255.8
2086.0 0.314 254.2
2087.0 0.312 252.7
2088.0 0.311 251.1
2089.0 0.310 249.5
2090.0 0.308 247.9
2091.0 0.307 246.3
2092.0 0.306 244.7
2093.0 0.305 243.1
2094.0 0.305 241.4
2095.0 0.304 239.8
2096.0 0.303 238.1
2097.0 0.303 236.5
2098.0 0.303 234.8
2099.0 0.302 233.2
2100.0 0.302 231.5
2101.0 0.302 229.8
2102.0 0.302 228.2
2103.0 0.302 226.5
2104.0 0.303 224.9
2105.0 0.303 223.2
2106.0 0.304 221.5
2107.0 0.304 219.9
2108.0 0.305 218.3
2109.0 0.306 216.6
2110.0 0.307 215.0
2111.0 0.308 213.4
2112.0 0.309 211.8
2113.0 0.310 210.2
2114.0 0.311 208.6
2115.0 0.312 207.1
2116.0 0.314 205.5
2117.0 0.315 204.0
2118.0 0.316 202.4
2119.0 0.318 200.9
2120.0 0.320 199.4
2121.0 0.321 197.9
2122.0 0.323 196.5
2123.0 0.324 195.0
2124.0 0.326 193.6
2125.0 0.328 192.2
2126.0 0.329 190.8
2127.0 0.331 189.4
2128.0 0.333 188.0
2129.0 0.334 186.6
2130.0 0.336 185.2
2131.0 0.337 183.9
2132.0 0.339 182.6
2133.0 0.340 181.3
2134.0 0.342 179.9
2135.0 0.343 178.7
2136.0 0.345 177.4
2137.0 0.346 176.1
2138.0 0.347 174.8
2139.0 0.348 173.6
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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