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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:03:29
WDS:
WOR17
WDS ID/Discoverer
P:
215.500
Orbital period (years)
a:
1.919
Semi-major axis (arcseconds)
i:
32.3
Inclination (degrees)
Ω:
11.7
Longitude of ascending node (degrees)
T:
1994.000
Epoch of periastron passage (year)
e:
0.813
Eccentricity
ω:
36.7
Longitude of periastron (degrees)
Start-Year:
1918.0
Year
End-Year:
2132.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
044029.33-091145.0
Epoch-2000 right ascension and declination
WDS-ID:
04406-0912
WDS designation
Discoverer Code:
WOR17
Discover designation and components
ADS number:
.
Aitken Double Star catalog
HD number:
.
HD catalog number
Hipparcos number:
21765
Hipparcos catalog number
V1:
11.0
Magnitude of the primary
V2:
11.1
Magnitude of the secondary
Equinox:
Equinox
Date:
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 2.131 196.3
-------------------------
1918.0 3.016 233.4
1919.0 3.001 233.7
1920.0 2.985 234.1
1921.0 2.969 234.4
1922.0 2.952 234.7
1923.0 2.935 235.1
1924.0 2.918 235.4
1925.0 2.900 235.8
1926.0 2.881 236.2
1927.0 2.863 236.5
1928.0 2.843 236.9
1929.0 2.824 237.3
1930.0 2.803 237.7
1931.0 2.783 238.0
1932.0 2.762 238.4
1933.0 2.740 238.8
1934.0 2.718 239.2
1935.0 2.696 239.7
1936.0 2.673 240.1
1937.0 2.650 240.5
1938.0 2.626 240.9
1939.0 2.601 241.4
1940.0 2.577 241.8
1941.0 2.551 242.3
1942.0 2.525 242.8
1943.0 2.499 243.2
1944.0 2.472 243.7
1945.0 2.445 244.2
1946.0 2.417 244.8
1947.0 2.388 245.3
1948.0 2.360 245.8
1949.0 2.330 246.4
1950.0 2.300 246.9
1951.0 2.269 247.5
1952.0 2.238 248.1
1953.0 2.206 248.7
1954.0 2.174 249.4
1955.0 2.141 250.0
1956.0 2.107 250.7
1957.0 2.073 251.4
1958.0 2.038 252.1
1959.0 2.003 252.8
1960.0 1.967 253.6
1961.0 1.930 254.4
1962.0 1.892 255.2
1963.0 1.854 256.1
1964.0 1.815 257.0
1965.0 1.775 257.9
1966.0 1.735 258.9
1967.0 1.694 259.9
1968.0 1.652 261.0
1969.0 1.609 262.2
1970.0 1.566 263.4
1971.0 1.522 264.6
1972.0 1.477 266.0
1973.0 1.431 267.4
1974.0 1.384 268.9
1975.0 1.336 270.6
1976.0 1.287 272.3
1977.0 1.238 274.2
1978.0 1.187 276.3
1979.0 1.136 278.5
1980.0 1.084 281.0
1981.0 1.031 283.7
1982.0 0.977 286.7
1983.0 0.922 290.1
1984.0 0.866 293.9
1985.0 0.810 298.2
1986.0 0.753 303.1
1987.0 0.697 308.9
1988.0 0.640 315.7
1989.0 0.583 323.8
1990.0 0.528 333.7
1991.0 0.474 345.8
1992.0 0.423 0.9
1993.0 0.376 20.0
1994.0 0.340 43.9
1995.0 0.331 71.3
1996.0 0.360 97.1
1997.0 0.420 117.4
1998.0 0.497 131.9
1999.0 0.581 142.4
2000.0 0.666 150.2
2001.0 0.750 156.3
2002.0 0.832 161.1
2003.0 0.912 165.1
2004.0 0.988 168.5
2005.0 1.062 171.3
2006.0 1.133 173.9
2007.0 1.202 176.1
2008.0 1.268 178.1
2009.0 1.332 179.9
2010.0 1.394 181.5
2011.0 1.454 183.0
2012.0 1.512 184.4
2013.0 1.569 185.6
2014.0 1.623 186.8
2015.0 1.676 187.9
2016.0 1.728 189.0
2017.0 1.778 190.0
2018.0 1.826 190.9
2019.0 1.873 191.8
2020.0 1.919 192.6
2021.0 1.964 193.4
2022.0 2.008 194.2
2023.0 2.050 194.9
2024.0 2.091 195.6
2025.0 2.131 196.3
2026.0 2.170 197.0
2027.0 2.209 197.6
2028.0 2.246 198.2
2029.0 2.282 198.8
2030.0 2.317 199.4
2031.0 2.352 199.9
2032.0 2.386 200.5
2033.0 2.418 201.0
2034.0 2.450 201.5
2035.0 2.481 202.0
2036.0 2.512 202.5
2037.0 2.541 203.0
2038.0 2.570 203.4
2039.0 2.599 203.9
2040.0 2.626 204.3
2041.0 2.653 204.8
2042.0 2.679 205.2
2043.0 2.704 205.6
2044.0 2.729 206.0
2045.0 2.753 206.4
2046.0 2.777 206.8
2047.0 2.800 207.2
2048.0 2.822 207.6
2049.0 2.844 208.0
2050.0 2.865 208.3
2051.0 2.885 208.7
2052.0 2.905 209.1
2053.0 2.925 209.4
2054.0 2.943 209.8
2055.0 2.962 210.1
2056.0 2.979 210.5
2057.0 2.997 210.8
2058.0 3.013 211.1
2059.0 3.030 211.5
2060.0 3.045 211.8
2061.0 3.060 212.1
2062.0 3.075 212.4
2063.0 3.089 212.8
2064.0 3.103 213.1
2065.0 3.116 213.4
2066.0 3.129 213.7
2067.0 3.141 214.0
2068.0 3.153 214.3
2069.0 3.164 214.6
2070.0 3.175 214.9
2071.0 3.185 215.2
2072.0 3.195 215.5
2073.0 3.205 215.8
2074.0 3.214 216.1
2075.0 3.222 216.4
2076.0 3.231 216.7
2077.0 3.238 217.0
2078.0 3.246 217.3
2079.0 3.252 217.6
2080.0 3.259 217.8
2081.0 3.265 218.1
2082.0 3.270 218.4
2083.0 3.276 218.7
2084.0 3.280 219.0
2085.0 3.285 219.3
2086.0 3.289 219.5
2087.0 3.292 219.8
2088.0 3.295 220.1
2089.0 3.298 220.4
2090.0 3.300 220.7
2091.0 3.302 220.9
2092.0 3.304 221.2
2093.0 3.305 221.5
2094.0 3.305 221.8
2095.0 3.306 222.0
2096.0 3.305 222.3
2097.0 3.305 222.6
2098.0 3.304 222.9
2099.0 3.303 223.1
2100.0 3.301 223.4
2101.0 3.299 223.7
2102.0 3.296 224.0
2103.0 3.293 224.3
2104.0 3.290 224.5
2105.0 3.286 224.8
2106.0 3.282 225.1
2107.0 3.278 225.4
2108.0 3.273 225.7
2109.0 3.268 225.9
2110.0 3.262 226.2
2111.0 3.256 226.5
2112.0 3.250 226.8
2113.0 3.243 227.1
2114.0 3.236 227.4
2115.0 3.228 227.7
2116.0 3.220 228.0
2117.0 3.212 228.3
2118.0 3.203 228.5
2119.0 3.194 228.8
2120.0 3.184 229.1
2121.0 3.175 229.4
2122.0 3.164 229.7
2123.0 3.153 230.0
2124.0 3.142 230.4
2125.0 3.131 230.7
2126.0 3.119 231.0
2127.0 3.107 231.3
2128.0 3.094 231.6
2129.0 3.081 231.9
2130.0 3.067 232.2
2131.0 3.053 232.6
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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