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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:31:21
WDS:
BU1114AB
WDS ID/Discoverer
P:
205.000
Orbital period (years)
a:
0.7219
Semi-major axis (arcseconds)
i:
90.6
Inclination (degrees)
Ω:
138.3
Longitude of ascending node (degrees)
T:
2047.160
Epoch of periastron passage (year)
e:
0.498
Eccentricity
ω:
359.5
Longitude of periastron (degrees)
Start-Year:
1923.0
Year
End-Year:
2127.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
152858.69-285200.5
Epoch-2000 right ascension and declination
WDS-ID:
15290-2852
WDS designation
Discoverer Code:
BU1114AB
Discover designation and components
ADS number:
9659
Aitken Double Star catalog
HD number:
137798
HD catalog number
Hipparcos number:
75790
Hipparcos catalog number
V1:
6.98
Magnitude of the primary
V2:
7.76
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
Date of last observation
Orbit grade:
4
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 0.056 312.3
-------------------------
1923.0 1.008 318.5
1924.0 1.014 318.5
1925.0 1.021 318.5
1926.0 1.026 318.4
1927.0 1.032 318.4
1928.0 1.037 318.4
1929.0 1.042 318.4
1930.0 1.047 318.4
1931.0 1.052 318.4
1932.0 1.056 318.4
1933.0 1.059 318.4
1934.0 1.063 318.4
1935.0 1.066 318.4
1936.0 1.069 318.4
1937.0 1.072 318.4
1938.0 1.074 318.4
1939.0 1.076 318.3
1940.0 1.078 318.3
1941.0 1.079 318.3
1942.0 1.080 318.3
1943.0 1.081 318.3
1944.0 1.081 318.3
1945.0 1.081 318.3
1946.0 1.081 318.3
1947.0 1.081 318.3
1948.0 1.080 318.3
1949.0 1.079 318.3
1950.0 1.078 318.3
1951.0 1.076 318.3
1952.0 1.074 318.3
1953.0 1.072 318.2
1954.0 1.069 318.2
1955.0 1.066 318.2
1956.0 1.063 318.2
1957.0 1.060 318.2
1958.0 1.056 318.2
1959.0 1.052 318.2
1960.0 1.047 318.2
1961.0 1.043 318.2
1962.0 1.038 318.2
1963.0 1.032 318.2
1964.0 1.027 318.2
1965.0 1.021 318.2
1966.0 1.015 318.1
1967.0 1.008 318.1
1968.0 1.001 318.1
1969.0 0.994 318.1
1970.0 0.986 318.1
1971.0 0.979 318.1
1972.0 0.970 318.1
1973.0 0.962 318.1
1974.0 0.953 318.1
1975.0 0.944 318.1
1976.0 0.935 318.1
1977.0 0.925 318.1
1978.0 0.915 318.0
1979.0 0.904 318.0
1980.0 0.894 318.0
1981.0 0.883 318.0
1982.0 0.871 318.0
1983.0 0.859 318.0
1984.0 0.847 318.0
1985.0 0.835 318.0
1986.0 0.822 318.0
1987.0 0.809 317.9
1988.0 0.796 317.9
1989.0 0.782 317.9
1990.0 0.768 317.9
1991.0 0.754 317.9
1992.0 0.739 317.9
1993.0 0.724 317.9
1994.0 0.708 317.8
1995.0 0.692 317.8
1996.0 0.676 317.8
1997.0 0.660 317.8
1998.0 0.643 317.8
1999.0 0.625 317.7
2000.0 0.608 317.7
2001.0 0.590 317.7
2002.0 0.572 317.7
2003.0 0.553 317.6
2004.0 0.534 317.6
2005.0 0.514 317.6
2006.0 0.495 317.6
2007.0 0.474 317.5
2008.0 0.454 317.5
2009.0 0.433 317.4
2010.0 0.412 317.4
2011.0 0.390 317.3
2012.0 0.369 317.3
2013.0 0.346 317.2
2014.0 0.324 317.1
2015.0 0.301 317.1
2016.0 0.278 317.0
2017.0 0.254 316.8
2018.0 0.230 316.7
2019.0 0.206 316.5
2020.0 0.182 316.3
2021.0 0.157 316.0
2022.0 0.132 315.6
2023.0 0.107 315.0
2024.0 0.082 314.1
2025.0 0.056 312.3
2026.0 0.031 307.5
2027.0 0.008 269.3
2028.0 0.021 153.3
2029.0 0.047 145.0
2030.0 0.072 142.5
2031.0 0.097 141.3
2032.0 0.122 140.6
2033.0 0.147 140.1
2034.0 0.171 139.8
2035.0 0.194 139.5
2036.0 0.217 139.3
2037.0 0.238 139.2
2038.0 0.259 139.0
2039.0 0.278 138.9
2040.0 0.296 138.8
2041.0 0.312 138.7
2042.0 0.326 138.7
2043.0 0.338 138.6
2044.0 0.348 138.5
2045.0 0.355 138.4
2046.0 0.360 138.4
2047.0 0.362 138.3
2048.0 0.362 138.3
2049.0 0.358 138.2
2050.0 0.353 138.1
2051.0 0.344 138.1
2052.0 0.334 138.0
2053.0 0.321 137.9
2054.0 0.306 137.8
2055.0 0.289 137.7
2056.0 0.271 137.6
2057.0 0.251 137.5
2058.0 0.230 137.4
2059.0 0.208 137.2
2060.0 0.185 137.0
2061.0 0.162 136.7
2062.0 0.138 136.3
2063.0 0.113 135.8
2064.0 0.089 135.0
2065.0 0.064 133.5
2066.0 0.038 130.1
2067.0 0.014 114.3
2068.0 0.014 342.7
2069.0 0.039 327.1
2070.0 0.064 323.7
2071.0 0.089 322.2
2072.0 0.114 321.4
2073.0 0.139 320.9
2074.0 0.163 320.5
2075.0 0.188 320.3
2076.0 0.212 320.0
2077.0 0.236 319.9
2078.0 0.259 319.7
2079.0 0.283 319.6
2080.0 0.306 319.5
2081.0 0.328 319.4
2082.0 0.351 319.4
2083.0 0.373 319.3
2084.0 0.394 319.3
2085.0 0.416 319.2
2086.0 0.437 319.2
2087.0 0.457 319.1
2088.0 0.477 319.1
2089.0 0.497 319.0
2090.0 0.517 319.0
2091.0 0.536 319.0
2092.0 0.555 319.0
2093.0 0.574 318.9
2094.0 0.592 318.9
2095.0 0.610 318.9
2096.0 0.627 318.9
2097.0 0.644 318.8
2098.0 0.661 318.8
2099.0 0.677 318.8
2100.0 0.693 318.8
2101.0 0.709 318.8
2102.0 0.725 318.8
2103.0 0.740 318.7
2104.0 0.754 318.7
2105.0 0.769 318.7
2106.0 0.783 318.7
2107.0 0.796 318.7
2108.0 0.810 318.7
2109.0 0.823 318.7
2110.0 0.835 318.6
2111.0 0.848 318.6
2112.0 0.860 318.6
2113.0 0.871 318.6
2114.0 0.883 318.6
2115.0 0.894 318.6
2116.0 0.904 318.6
2117.0 0.915 318.6
2118.0 0.925 318.6
2119.0 0.935 318.5
2120.0 0.944 318.5
2121.0 0.953 318.5
2122.0 0.962 318.5
2123.0 0.970 318.5
2124.0 0.978 318.5
2125.0 0.986 318.5
2126.0 0.994 318.5
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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