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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:10:02
WDS:
A1999
WDS ID/Discoverer
P:
200.010
Orbital period (years)
a:
0.983
Semi-major axis (arcseconds)
i:
58.0
Inclination (degrees)
Ω:
198.1
Longitude of ascending node (degrees)
T:
2014.080
Epoch of periastron passage (year)
e:
0.589
Eccentricity
ω:
279.4
Longitude of periastron (degrees)
Start-Year:
1925.0
Year
End-Year:
2125.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
121526.22+400741.1
Epoch-2000 right ascension and declination
WDS-ID:
12154+4008
WDS designation
Discoverer Code:
A1999
Discover designation and components
ADS number:
8480
Aitken Double Star catalog
HD number:
106592
HD catalog number
Hipparcos number:
59776
Hipparcos catalog number
V1:
9.09
Magnitude of the primary
V2:
11.33
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2012
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 0.553 195.0
-------------------------
1925.0 0.894 316.1
1926.0 0.898 317.0
1927.0 0.902 317.9
1928.0 0.906 318.8
1929.0 0.909 319.8
1930.0 0.913 320.7
1931.0 0.917 321.5
1932.0 0.920 322.4
1933.0 0.924 323.3
1934.0 0.928 324.2
1935.0 0.931 325.0
1936.0 0.935 325.9
1937.0 0.938 326.7
1938.0 0.942 327.6
1939.0 0.945 328.4
1940.0 0.948 329.2
1941.0 0.952 330.1
1942.0 0.955 330.9
1943.0 0.958 331.7
1944.0 0.961 332.5
1945.0 0.964 333.3
1946.0 0.966 334.1
1947.0 0.969 334.9
1948.0 0.972 335.7
1949.0 0.974 336.5
1950.0 0.976 337.3
1951.0 0.978 338.1
1952.0 0.980 338.8
1953.0 0.982 339.6
1954.0 0.984 340.4
1955.0 0.985 341.1
1956.0 0.987 341.9
1957.0 0.988 342.7
1958.0 0.989 343.4
1959.0 0.989 344.2
1960.0 0.990 345.0
1961.0 0.990 345.7
1962.0 0.990 346.5
1963.0 0.990 347.2
1964.0 0.989 348.0
1965.0 0.988 348.8
1966.0 0.987 349.5
1967.0 0.986 350.3
1968.0 0.984 351.1
1969.0 0.982 351.8
1970.0 0.979 352.6
1971.0 0.977 353.4
1972.0 0.973 354.2
1973.0 0.970 355.0
1974.0 0.966 355.8
1975.0 0.961 356.6
1976.0 0.957 357.4
1977.0 0.951 358.2
1978.0 0.945 359.0
1979.0 0.939 359.9
1980.0 0.932 0.7
1981.0 0.924 1.6
1982.0 0.916 2.4
1983.0 0.907 3.3
1984.0 0.898 4.3
1985.0 0.888 5.2
1986.0 0.877 6.1
1987.0 0.865 7.1
1988.0 0.852 8.1
1989.0 0.839 9.2
1990.0 0.824 10.3
1991.0 0.809 11.4
1992.0 0.793 12.5
1993.0 0.775 13.7
1994.0 0.756 15.0
1995.0 0.737 16.4
1996.0 0.715 17.8
1997.0 0.693 19.3
1998.0 0.669 20.9
1999.0 0.643 22.6
2000.0 0.616 24.5
2001.0 0.587 26.5
2002.0 0.557 28.8
2003.0 0.525 31.4
2004.0 0.491 34.3
2005.0 0.456 37.6
2006.0 0.419 41.5
2007.0 0.382 46.1
2008.0 0.344 51.8
2009.0 0.307 58.9
2010.0 0.273 67.7
2011.0 0.244 79.0
2012.0 0.224 92.7
2013.0 0.215 108.3
2014.0 0.220 124.2
2015.0 0.238 138.6
2016.0 0.265 150.4
2017.0 0.297 159.9
2018.0 0.332 167.5
2019.0 0.368 173.6
2020.0 0.403 178.6
2021.0 0.437 182.8
2022.0 0.469 186.4
2023.0 0.500 189.6
2024.0 0.528 192.4
2025.0 0.553 195.0
2026.0 0.577 197.3
2027.0 0.599 199.4
2028.0 0.619 201.4
2029.0 0.638 203.3
2030.0 0.655 205.1
2031.0 0.670 206.8
2032.0 0.684 208.4
2033.0 0.697 210.0
2034.0 0.709 211.5
2035.0 0.719 213.0
2036.0 0.729 214.4
2037.0 0.737 215.8
2038.0 0.745 217.1
2039.0 0.752 218.5
2040.0 0.759 219.8
2041.0 0.764 221.0
2042.0 0.770 222.3
2043.0 0.774 223.6
2044.0 0.778 224.8
2045.0 0.782 226.0
2046.0 0.785 227.2
2047.0 0.788 228.4
2048.0 0.790 229.6
2049.0 0.792 230.8
2050.0 0.794 232.0
2051.0 0.795 233.2
2052.0 0.797 234.4
2053.0 0.798 235.5
2054.0 0.798 236.7
2055.0 0.799 237.9
2056.0 0.799 239.0
2057.0 0.800 240.2
2058.0 0.800 241.4
2059.0 0.800 242.5
2060.0 0.800 243.7
2061.0 0.799 244.9
2062.0 0.799 246.0
2063.0 0.799 247.2
2064.0 0.799 248.4
2065.0 0.798 249.5
2066.0 0.798 250.7
2067.0 0.797 251.9
2068.0 0.797 253.0
2069.0 0.796 254.2
2070.0 0.796 255.4
2071.0 0.796 256.6
2072.0 0.795 257.7
2073.0 0.795 258.9
2074.0 0.795 260.1
2075.0 0.794 261.3
2076.0 0.794 262.5
2077.0 0.794 263.6
2078.0 0.794 264.8
2079.0 0.794 266.0
2080.0 0.794 267.2
2081.0 0.794 268.4
2082.0 0.794 269.6
2083.0 0.795 270.7
2084.0 0.795 271.9
2085.0 0.796 273.1
2086.0 0.796 274.3
2087.0 0.797 275.4
2088.0 0.798 276.6
2089.0 0.799 277.8
2090.0 0.800 278.9
2091.0 0.801 280.1
2092.0 0.802 281.3
2093.0 0.804 282.4
2094.0 0.805 283.6
2095.0 0.807 284.7
2096.0 0.808 285.9
2097.0 0.810 287.0
2098.0 0.812 288.1
2099.0 0.814 289.3
2100.0 0.816 290.4
2101.0 0.818 291.5
2102.0 0.821 292.6
2103.0 0.823 293.7
2104.0 0.826 294.8
2105.0 0.828 295.9
2106.0 0.831 297.0
2107.0 0.834 298.0
2108.0 0.837 299.1
2109.0 0.839 300.2
2110.0 0.842 301.2
2111.0 0.846 302.3
2112.0 0.849 303.3
2113.0 0.852 304.3
2114.0 0.855 305.4
2115.0 0.859 306.4
2116.0 0.862 307.4
2117.0 0.865 308.4
2118.0 0.869 309.4
2119.0 0.873 310.4
2120.0 0.876 311.3
2121.0 0.880 312.3
2122.0 0.883 313.3
2123.0 0.887 314.2
2124.0 0.891 315.1
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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