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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 18:07:33
WDS:
BU603AB
WDS ID/Discoverer
P:
133.120
Orbital period (years)
a:
0.685
Semi-major axis (arcseconds)
i:
147.4
Inclination (degrees)
Ω:
255.1
Longitude of ascending node (degrees)
T:
1938.510
Epoch of periastron passage (year)
e:
0.788
Eccentricity
ω:
96.3
Longitude of periastron (degrees)
Start-Year:
1959.0
Year
End-Year:
2091.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
114838.71+141703.2
Epoch-2000 right ascension and declination
WDS-ID:
11486+1417
WDS designation
Discoverer Code:
BU603AB
Discover designation and components
ADS number:
8311
Aitken Double Star catalog
HD number:
102590
HD catalog number
Hipparcos number:
57606
Hipparcos catalog number
V1:
5.97
Magnitude of the primary
V2:
8.53
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2022
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 0.985 325.0
-------------------------
1959.0 0.680 15.2
1960.0 0.697 13.8
1961.0 0.713 12.4
1962.0 0.729 11.2
1963.0 0.744 10.0
1964.0 0.759 8.8
1965.0 0.773 7.7
1966.0 0.786 6.6
1967.0 0.799 5.5
1968.0 0.812 4.5
1969.0 0.824 3.6
1970.0 0.836 2.6
1971.0 0.847 1.7
1972.0 0.858 0.8
1973.0 0.869 359.9
1974.0 0.879 359.0
1975.0 0.889 358.2
1976.0 0.898 357.4
1977.0 0.907 356.5
1978.0 0.916 355.8
1979.0 0.925 355.0
1980.0 0.933 354.2
1981.0 0.940 353.5
1982.0 0.948 352.7
1983.0 0.955 352.0
1984.0 0.962 351.3
1985.0 0.968 350.6
1986.0 0.974 349.9
1987.0 0.980 349.2
1988.0 0.986 348.5
1989.0 0.991 347.8
1990.0 0.996 347.2
1991.0 1.000 346.5
1992.0 1.005 345.8
1993.0 1.009 345.2
1994.0 1.012 344.6
1995.0 1.016 343.9
1996.0 1.019 343.3
1997.0 1.022 342.6
1998.0 1.024 342.0
1999.0 1.027 341.4
2000.0 1.029 340.8
2001.0 1.030 340.1
2002.0 1.032 339.5
2003.0 1.033 338.9
2004.0 1.034 338.3
2005.0 1.034 337.7
2006.0 1.035 337.1
2007.0 1.035 336.4
2008.0 1.034 335.8
2009.0 1.034 335.2
2010.0 1.033 334.6
2011.0 1.032 334.0
2012.0 1.030 333.4
2013.0 1.029 332.7
2014.0 1.027 332.1
2015.0 1.024 331.5
2016.0 1.022 330.9
2017.0 1.019 330.2
2018.0 1.016 329.6
2019.0 1.012 329.0
2020.0 1.008 328.3
2021.0 1.004 327.7
2022.0 1.000 327.0
2023.0 0.995 326.3
2024.0 0.990 325.7
2025.0 0.985 325.0
2026.0 0.979 324.3
2027.0 0.973 323.6
2028.0 0.967 322.9
2029.0 0.960 322.2
2030.0 0.953 321.5
2031.0 0.945 320.8
2032.0 0.938 320.0
2033.0 0.930 319.3
2034.0 0.921 318.5
2035.0 0.912 317.7
2036.0 0.903 316.9
2037.0 0.893 316.1
2038.0 0.883 315.3
2039.0 0.873 314.4
2040.0 0.862 313.5
2041.0 0.850 312.6
2042.0 0.838 311.7
2043.0 0.826 310.8
2044.0 0.813 309.8
2045.0 0.800 308.8
2046.0 0.786 307.7
2047.0 0.771 306.6
2048.0 0.756 305.5
2049.0 0.741 304.3
2050.0 0.725 303.1
2051.0 0.708 301.8
2052.0 0.690 300.5
2053.0 0.672 299.1
2054.0 0.653 297.6
2055.0 0.633 296.0
2056.0 0.612 294.3
2057.0 0.590 292.5
2058.0 0.568 290.5
2059.0 0.544 288.4
2060.0 0.519 286.0
2061.0 0.492 283.5
2062.0 0.464 280.6
2063.0 0.435 277.3
2064.0 0.403 273.6
2065.0 0.370 269.2
2066.0 0.334 263.8
2067.0 0.295 257.2
2068.0 0.253 248.3
2069.0 0.208 235.9
2070.0 0.163 216.5
2071.0 0.129 184.5
2072.0 0.127 141.9
2073.0 0.158 108.2
2074.0 0.201 87.5
2075.0 0.243 74.0
2076.0 0.282 64.4
2077.0 0.319 57.1
2078.0 0.353 51.3
2079.0 0.384 46.4
2080.0 0.414 42.3
2081.0 0.442 38.7
2082.0 0.469 35.5
2083.0 0.494 32.7
2084.0 0.518 30.1
2085.0 0.541 27.8
2086.0 0.563 25.6
2087.0 0.584 23.6
2088.0 0.605 21.7
2089.0 0.624 20.0
2090.0 0.643 18.3
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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