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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:25:11
WDS:
BU867
WDS ID/Discoverer
P:
232.040
Orbital period (years)
a:
0.813
Semi-major axis (arcseconds)
i:
98.9
Inclination (degrees)
Ω:
354.2
Longitude of ascending node (degrees)
T:
2012.720
Epoch of periastron passage (year)
e:
0.23
Eccentricity
ω:
2.9
Longitude of periastron (degrees)
Start-Year:
1909.0
Year
End-Year:
2141.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
010121.77+115445.9
Epoch-2000 right ascension and declination
WDS-ID:
01014+1155
WDS designation
Discoverer Code:
BU867
Discover designation and components
ADS number:
828
Aitken Double Star catalog
HD number:
5988
HD catalog number
Hipparcos number:
4775
Hipparcos catalog number
V1:
8.23
Magnitude of the primary
V2:
9.34
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2003
Date of last observation
Orbit grade:
3
Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:
n
Flags
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Click to expand/collapse ephemeris:
Year Sep[“] PA[°]
---------------------------------------------
2025.0 0.538 348.3
-------------------------
1909.0 0.959 171.8
1910.0 0.953 171.6
1911.0 0.947 171.4
1912.0 0.941 171.3
1913.0 0.934 171.1
1914.0 0.927 170.9
1915.0 0.919 170.7
1916.0 0.911 170.6
1917.0 0.903 170.4
1918.0 0.894 170.2
1919.0 0.885 170.0
1920.0 0.875 169.8
1921.0 0.866 169.6
1922.0 0.855 169.4
1923.0 0.845 169.2
1924.0 0.834 168.9
1925.0 0.823 168.7
1926.0 0.811 168.5
1927.0 0.799 168.2
1928.0 0.787 168.0
1929.0 0.774 167.7
1930.0 0.761 167.5
1931.0 0.748 167.2
1932.0 0.734 166.9
1933.0 0.720 166.6
1934.0 0.706 166.3
1935.0 0.692 166.0
1936.0 0.677 165.7
1937.0 0.662 165.3
1938.0 0.646 165.0
1939.0 0.630 164.6
1940.0 0.614 164.2
1941.0 0.598 163.8
1942.0 0.581 163.3
1943.0 0.564 162.9
1944.0 0.547 162.4
1945.0 0.530 161.8
1946.0 0.512 161.3
1947.0 0.494 160.7
1948.0 0.476 160.0
1949.0 0.458 159.3
1950.0 0.439 158.5
1951.0 0.421 157.7
1952.0 0.402 156.8
1953.0 0.383 155.8
1954.0 0.364 154.7
1955.0 0.345 153.4
1956.0 0.326 152.1
1957.0 0.306 150.5
1958.0 0.287 148.8
1959.0 0.268 146.7
1960.0 0.249 144.4
1961.0 0.231 141.8
1962.0 0.213 138.6
1963.0 0.195 134.9
1964.0 0.179 130.5
1965.0 0.163 125.2
1966.0 0.149 118.8
1967.0 0.137 111.3
1968.0 0.128 102.5
1969.0 0.122 92.6
1970.0 0.120 82.1
1971.0 0.122 71.6
1972.0 0.128 61.7
1973.0 0.137 52.9
1974.0 0.149 45.4
1975.0 0.163 39.0
1976.0 0.179 33.7
1977.0 0.195 29.3
1978.0 0.212 25.5
1979.0 0.230 22.4
1980.0 0.248 19.7
1981.0 0.267 17.4
1982.0 0.286 15.3
1983.0 0.304 13.5
1984.0 0.323 12.0
1985.0 0.341 10.6
1986.0 0.359 9.3
1987.0 0.377 8.2
1988.0 0.395 7.1
1989.0 0.412 6.2
1990.0 0.429 5.3
1991.0 0.445 4.5
1992.0 0.461 3.7
1993.0 0.476 3.0
1994.0 0.491 2.4
1995.0 0.505 1.8
1996.0 0.519 1.2
1997.0 0.532 0.6
1998.0 0.544 0.1
1999.0 0.555 359.6
2000.0 0.566 359.1
2001.0 0.576 358.6
2002.0 0.585 358.1
2003.0 0.593 357.7
2004.0 0.601 357.3
2005.0 0.607 356.8
2006.0 0.613 356.4
2007.0 0.617 356.0
2008.0 0.621 355.6
2009.0 0.624 355.2
2010.0 0.625 354.8
2011.0 0.626 354.4
2012.0 0.626 354.0
2013.0 0.625 353.6
2014.0 0.623 353.2
2015.0 0.620 352.8
2016.0 0.616 352.4
2017.0 0.610 352.0
2018.0 0.605 351.6
2019.0 0.598 351.2
2020.0 0.590 350.7
2021.0 0.581 350.3
2022.0 0.572 349.8
2023.0 0.561 349.3
2024.0 0.550 348.8
2025.0 0.538 348.3
2026.0 0.525 347.8
2027.0 0.512 347.2
2028.0 0.498 346.6
2029.0 0.483 346.0
2030.0 0.468 345.3
2031.0 0.452 344.5
2032.0 0.435 343.8
2033.0 0.418 342.9
2034.0 0.401 342.0
2035.0 0.383 341.0
2036.0 0.365 339.9
2037.0 0.346 338.7
2038.0 0.328 337.3
2039.0 0.309 335.8
2040.0 0.290 334.1
2041.0 0.271 332.1
2042.0 0.252 329.8
2043.0 0.233 327.2
2044.0 0.214 324.1
2045.0 0.196 320.4
2046.0 0.179 316.0
2047.0 0.163 310.7
2048.0 0.148 304.3
2049.0 0.136 296.6
2050.0 0.126 287.6
2051.0 0.120 277.3
2052.0 0.118 266.3
2053.0 0.120 255.3
2054.0 0.126 245.0
2055.0 0.136 236.0
2056.0 0.148 228.3
2057.0 0.163 221.9
2058.0 0.179 216.6
2059.0 0.196 212.2
2060.0 0.215 208.5
2061.0 0.233 205.4
2062.0 0.252 202.8
2063.0 0.272 200.6
2064.0 0.291 198.6
2065.0 0.311 196.9
2066.0 0.331 195.4
2067.0 0.350 194.1
2068.0 0.370 192.9
2069.0 0.389 191.8
2070.0 0.409 190.8
2071.0 0.428 189.9
2072.0 0.447 189.1
2073.0 0.466 188.4
2074.0 0.484 187.7
2075.0 0.503 187.1
2076.0 0.521 186.5
2077.0 0.539 185.9
2078.0 0.556 185.4
2079.0 0.574 184.9
2080.0 0.591 184.5
2081.0 0.607 184.0
2082.0 0.624 183.6
2083.0 0.640 183.3
2084.0 0.656 182.9
2085.0 0.672 182.5
2086.0 0.687 182.2
2087.0 0.702 181.9
2088.0 0.716 181.6
2089.0 0.731 181.3
2090.0 0.744 181.0
2091.0 0.758 180.7
2092.0 0.771 180.5
2093.0 0.784 180.2
2094.0 0.797 180.0
2095.0 0.809 179.7
2096.0 0.821 179.5
2097.0 0.832 179.3
2098.0 0.843 179.0
2099.0 0.854 178.8
2100.0 0.864 178.6
2101.0 0.874 178.4
2102.0 0.884 178.2
2103.0 0.893 178.0
2104.0 0.902 177.8
2105.0 0.910 177.6
2106.0 0.918 177.5
2107.0 0.926 177.3
2108.0 0.933 177.1
2109.0 0.940 176.9
2110.0 0.947 176.7
2111.0 0.953 176.6
2112.0 0.959 176.4
2113.0 0.964 176.2
2114.0 0.969 176.1
2115.0 0.974 175.9
2116.0 0.978 175.7
2117.0 0.982 175.6
2118.0 0.986 175.4
2119.0 0.989 175.3
2120.0 0.991 175.1
2121.0 0.994 175.0
2122.0 0.996 174.8
2123.0 0.997 174.6
2124.0 0.998 174.5
2125.0 0.999 174.3
2126.0 1.000 174.2
2127.0 1.000 174.0
2128.0 0.999 173.9
2129.0 0.999 173.7
2130.0 0.997 173.6
2131.0 0.996 173.4
2132.0 0.994 173.2
2133.0 0.992 173.1
2134.0 0.989 172.9
2135.0 0.986 172.8
2136.0 0.982 172.6
2137.0 0.979 172.5
2138.0 0.974 172.3
2139.0 0.970 172.1
2140.0 0.965 172.0
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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