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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 17:59:07
WDS:
A556AB
WDS ID/Discoverer
P:
205.000
Orbital period (years)
a:
1.334
Semi-major axis (arcseconds)
i:
54.2
Inclination (degrees)
Ω:
63.2
Longitude of ascending node (degrees)
T:
2048.600
Epoch of periastron passage (year)
e:
0.301
Eccentricity
ω:
219.7
Longitude of periastron (degrees)
Start-Year:
1923.0
Year
End-Year:
2127.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
103700.02-085023.6
Epoch-2000 right ascension and declination
WDS-ID:
10370-0850
WDS designation
Discoverer Code:
A556AB
Discover designation and components
ADS number:
7854
Aitken Double Star catalog
HD number:
91962
HD catalog number
Hipparcos number:
51966
Hipparcos catalog number
V1:
7.1
Magnitude of the primary
V2:
9.80
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2015
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 1.001 223.2
-------------------------
1923.0 1.632 72.9
1924.0 1.631 73.6
1925.0 1.630 74.2
1926.0 1.628 74.9
1927.0 1.625 75.5
1928.0 1.622 76.2
1929.0 1.618 76.9
1930.0 1.614 77.5
1931.0 1.610 78.2
1932.0 1.604 78.9
1933.0 1.599 79.6
1934.0 1.593 80.2
1935.0 1.586 80.9
1936.0 1.579 81.6
1937.0 1.572 82.3
1938.0 1.564 83.0
1939.0 1.555 83.8
1940.0 1.547 84.5
1941.0 1.537 85.2
1942.0 1.528 86.0
1943.0 1.518 86.7
1944.0 1.507 87.5
1945.0 1.497 88.2
1946.0 1.486 89.0
1947.0 1.474 89.8
1948.0 1.462 90.6
1949.0 1.450 91.5
1950.0 1.438 92.3
1951.0 1.425 93.1
1952.0 1.412 94.0
1953.0 1.399 94.9
1954.0 1.385 95.8
1955.0 1.371 96.7
1956.0 1.357 97.6
1957.0 1.343 98.6
1958.0 1.328 99.6
1959.0 1.314 100.6
1960.0 1.299 101.6
1961.0 1.284 102.6
1962.0 1.269 103.7
1963.0 1.253 104.8
1964.0 1.238 105.9
1965.0 1.223 107.1
1966.0 1.207 108.3
1967.0 1.192 109.5
1968.0 1.176 110.7
1969.0 1.161 112.0
1970.0 1.145 113.3
1971.0 1.130 114.7
1972.0 1.115 116.0
1973.0 1.099 117.5
1974.0 1.084 118.9
1975.0 1.070 120.4
1976.0 1.055 122.0
1977.0 1.041 123.6
1978.0 1.027 125.2
1979.0 1.013 126.9
1980.0 0.999 128.6
1981.0 0.986 130.4
1982.0 0.974 132.2
1983.0 0.962 134.0
1984.0 0.950 135.9
1985.0 0.939 137.9
1986.0 0.929 139.9
1987.0 0.919 141.9
1988.0 0.910 144.0
1989.0 0.901 146.2
1990.0 0.893 148.3
1991.0 0.886 150.5
1992.0 0.880 152.8
1993.0 0.874 155.0
1994.0 0.869 157.3
1995.0 0.865 159.6
1996.0 0.862 162.0
1997.0 0.860 164.3
1998.0 0.859 166.7
1999.0 0.858 169.1
2000.0 0.858 171.4
2001.0 0.859 173.8
2002.0 0.861 176.1
2003.0 0.863 178.5
2004.0 0.866 180.8
2005.0 0.870 183.1
2006.0 0.875 185.4
2007.0 0.880 187.7
2008.0 0.885 189.9
2009.0 0.892 192.1
2010.0 0.898 194.3
2011.0 0.905 196.5
2012.0 0.912 198.6
2013.0 0.920 200.7
2014.0 0.927 202.7
2015.0 0.935 204.7
2016.0 0.943 206.7
2017.0 0.950 208.6
2018.0 0.958 210.5
2019.0 0.965 212.4
2020.0 0.972 214.3
2021.0 0.979 216.1
2022.0 0.985 217.9
2023.0 0.991 219.7
2024.0 0.996 221.5
2025.0 1.001 223.2
2026.0 1.005 225.0
2027.0 1.008 226.7
2028.0 1.010 228.4
2029.0 1.012 230.1
2030.0 1.012 231.8
2031.0 1.011 233.5
2032.0 1.009 235.2
2033.0 1.006 236.9
2034.0 1.002 238.7
2035.0 0.996 240.4
2036.0 0.990 242.2
2037.0 0.981 244.0
2038.0 0.972 245.8
2039.0 0.961 247.7
2040.0 0.949 249.6
2041.0 0.936 251.5
2042.0 0.921 253.6
2043.0 0.905 255.6
2044.0 0.888 257.8
2045.0 0.870 260.1
2046.0 0.851 262.4
2047.0 0.831 264.9
2048.0 0.810 267.5
2049.0 0.789 270.2
2050.0 0.768 273.1
2051.0 0.746 276.1
2052.0 0.725 279.4
2053.0 0.704 282.8
2054.0 0.685 286.4
2055.0 0.666 290.2
2056.0 0.648 294.2
2057.0 0.632 298.5
2058.0 0.619 303.0
2059.0 0.607 307.6
2060.0 0.599 312.4
2061.0 0.593 317.3
2062.0 0.590 322.3
2063.0 0.591 327.3
2064.0 0.594 332.3
2065.0 0.601 337.2
2066.0 0.611 341.9
2067.0 0.623 346.5
2068.0 0.639 350.9
2069.0 0.656 355.1
2070.0 0.676 359.0
2071.0 0.697 2.7
2072.0 0.720 6.2
2073.0 0.745 9.4
2074.0 0.770 12.4
2075.0 0.796 15.3
2076.0 0.823 18.0
2077.0 0.850 20.4
2078.0 0.878 22.8
2079.0 0.906 25.0
2080.0 0.934 27.0
2081.0 0.962 29.0
2082.0 0.989 30.8
2083.0 1.017 32.5
2084.0 1.044 34.2
2085.0 1.071 35.7
2086.0 1.097 37.2
2087.0 1.123 38.6
2088.0 1.148 40.0
2089.0 1.173 41.3
2090.0 1.198 42.5
2091.0 1.222 43.7
2092.0 1.245 44.9
2093.0 1.267 46.0
2094.0 1.289 47.0
2095.0 1.310 48.1
2096.0 1.331 49.1
2097.0 1.351 50.0
2098.0 1.370 51.0
2099.0 1.389 51.9
2100.0 1.406 52.8
2101.0 1.423 53.7
2102.0 1.440 54.5
2103.0 1.456 55.3
2104.0 1.471 56.2
2105.0 1.485 56.9
2106.0 1.499 57.7
2107.0 1.512 58.5
2108.0 1.524 59.3
2109.0 1.535 60.0
2110.0 1.546 60.7
2111.0 1.557 61.5
2112.0 1.566 62.2
2113.0 1.575 62.9
2114.0 1.583 63.6
2115.0 1.591 64.3
2116.0 1.598 65.0
2117.0 1.604 65.6
2118.0 1.610 66.3
2119.0 1.615 67.0
2120.0 1.619 67.7
2121.0 1.623 68.3
2122.0 1.626 69.0
2123.0 1.628 69.6
2124.0 1.630 70.3
2125.0 1.632 70.9
2126.0 1.632 71.6
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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