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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:21:10
WDS:
BU838
WDS ID/Discoverer
P:
1023.389
Orbital period (years)
a:
5.36256
Semi-major axis (arcseconds)
i:
77.217
Inclination (degrees)
Ω:
169.101
Longitude of ascending node (degrees)
T:
2050.745
Epoch of periastron passage (year)
e:
0.85848
Eccentricity
ω:
68.921
Longitude of periastron (degrees)
Start-Year:
1514.0
Year
End-Year:
2536.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
212055.78+030705.6
Epoch-2000 right ascension and declination
WDS-ID:
21209+0307
WDS designation
Discoverer Code:
BU838
Discover designation and components
ADS number:
14880
Aitken Double Star catalog
HD number:
203235
HD catalog number
Hipparcos number:
105399
Hipparcos catalog number
V1:
7.92
Magnitude of the primary
V2:
10.02
Magnitude of the secondary
Equinox:
Equinox
Date:
2007
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 1.518 158.8
-------------------------
1514.0 4.302 17.3
1524.0 4.236 18.0
1534.0 4.168 18.6
1544.0 4.098 19.3
1554.0 4.026 20.0
1564.0 3.953 20.7
1574.0 3.878 21.5
1584.0 3.801 22.2
1594.0 3.723 23.0
1604.0 3.643 23.9
1614.0 3.562 24.8
1624.0 3.479 25.7
1634.0 3.396 26.7
1644.0 3.311 27.7
1654.0 3.225 28.8
1664.0 3.138 29.9
1674.0 3.051 31.1
1684.0 2.963 32.4
1694.0 2.874 33.7
1704.0 2.785 35.2
1714.0 2.696 36.7
1724.0 2.607 38.3
1734.0 2.518 40.1
1744.0 2.430 41.9
1754.0 2.342 44.0
1764.0 2.256 46.1
1774.0 2.171 48.5
1784.0 2.087 51.0
1794.0 2.007 53.8
1804.0 1.929 56.7
1814.0 1.854 59.9
1824.0 1.784 63.4
1834.0 1.719 67.1
1844.0 1.659 71.2
1854.0 1.606 75.5
1864.0 1.560 80.1
1874.0 1.521 84.9
1884.0 1.492 90.0
1894.0 1.472 95.2
1904.0 1.460 100.6
1914.0 1.459 106.0
1924.0 1.466 111.3
1934.0 1.481 116.6
1944.0 1.502 121.8
1954.0 1.529 126.8
1964.0 1.559 131.6
1974.0 1.590 136.2
1984.0 1.617 140.7
1994.0 1.635 145.0
2004.0 1.638 149.3
2014.0 1.611 153.6
2024.0 1.531 158.3
2034.0 1.342 163.7
2044.0 0.894 172.8
2054.0 0.203 288.6
2064.0 1.109 342.1
2074.0 1.795 347.7
2084.0 2.305 350.4
2094.0 2.708 352.3
2104.0 3.039 353.7
2114.0 3.319 354.8
2124.0 3.558 355.8
2134.0 3.766 356.6
2144.0 3.948 357.4
2154.0 4.108 358.1
2164.0 4.249 358.8
2174.0 4.374 359.4
2184.0 4.484 360.0
2194.0 4.582 0.5
2204.0 4.668 1.1
2214.0 4.745 1.6
2224.0 4.811 2.1
2234.0 4.869 2.6
2244.0 4.919 3.0
2254.0 4.962 3.5
2264.0 4.997 4.0
2274.0 5.026 4.4
2284.0 5.050 4.9
2294.0 5.067 5.3
2304.0 5.079 5.8
2314.0 5.086 6.2
2324.0 5.088 6.7
2334.0 5.086 7.1
2344.0 5.079 7.6
2354.0 5.069 8.0
2364.0 5.054 8.5
2374.0 5.035 8.9
2384.0 5.013 9.4
2394.0 4.987 9.8
2404.0 4.958 10.3
2414.0 4.926 10.7
2424.0 4.890 11.2
2434.0 4.852 11.7
2444.0 4.811 12.2
2454.0 4.767 12.7
2464.0 4.720 13.2
2474.0 4.670 13.7
2484.0 4.619 14.3
2494.0 4.564 14.8
2504.0 4.508 15.4
2514.0 4.449 15.9
2524.0 4.387 16.5
2534.0 4.324 17.1
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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