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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:16:22
WDS:
BU281AB
WDS ID/Discoverer
P:
1117.000
Orbital period (years)
a:
3.14
Semi-major axis (arcseconds)
i:
108.5
Inclination (degrees)
Ω:
149.9
Longitude of ascending node (degrees)
T:
2077.500
Epoch of periastron passage (year)
e:
0.639
Eccentricity
ω:
55.7
Longitude of periastron (degrees)
Start-Year:
1467.0
Year
End-Year:
2583.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
000247.14+020749.4
Epoch-2000 right ascension and declination
WDS-ID:
00028+0208
WDS designation
Discoverer Code:
BU281AB
Discover designation and components
ADS number:
9
Aitken Double Star catalog
HD number:
225028
HD catalog number
Hipparcos number:
223
Hipparcos catalog number
V1:
7.40
Magnitude of the primary
V2:
9.36
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
2014
Date of last observation
Orbit grade:
5
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 1.524 156.9
-------------------------
1467.0 3.464 308.6
1477.0 3.417 307.9
1487.0 3.368 307.3
1497.0 3.317 306.6
1507.0 3.264 305.8
1517.0 3.210 305.1
1527.0 3.153 304.3
1537.0 3.095 303.5
1547.0 3.036 302.7
1557.0 2.974 301.9
1567.0 2.912 301.0
1577.0 2.848 300.0
1587.0 2.782 299.1
1597.0 2.716 298.0
1607.0 2.648 296.9
1617.0 2.580 295.8
1627.0 2.510 294.6
1637.0 2.440 293.3
1647.0 2.368 292.0
1657.0 2.297 290.6
1667.0 2.225 289.1
1677.0 2.153 287.4
1687.0 2.080 285.7
1697.0 2.009 283.9
1707.0 1.937 281.9
1717.0 1.866 279.7
1727.0 1.796 277.4
1737.0 1.728 274.9
1747.0 1.661 272.2
1757.0 1.597 269.3
1767.0 1.535 266.1
1777.0 1.477 262.7
1787.0 1.422 259.0
1797.0 1.372 255.0
1807.0 1.328 250.8
1817.0 1.289 246.2
1827.0 1.257 241.4
1837.0 1.232 236.4
1847.0 1.215 231.2
1857.0 1.206 225.9
1867.0 1.205 220.6
1877.0 1.212 215.3
1887.0 1.227 210.1
1897.0 1.248 205.0
1907.0 1.275 200.1
1917.0 1.308 195.5
1927.0 1.344 191.0
1937.0 1.382 186.9
1947.0 1.422 182.9
1957.0 1.461 179.2
1967.0 1.498 175.6
1977.0 1.530 172.3
1987.0 1.555 169.0
1997.0 1.570 165.8
2007.0 1.572 162.7
2017.0 1.555 159.5
2027.0 1.514 156.2
2037.0 1.442 152.7
2047.0 1.330 148.7
2057.0 1.171 143.7
2067.0 0.963 136.9
2077.0 0.717 125.7
2087.0 0.480 102.9
2097.0 0.388 56.8
2107.0 0.545 17.4
2117.0 0.807 359.7
2127.0 1.082 350.8
2137.0 1.345 345.5
2147.0 1.591 341.8
2157.0 1.817 339.2
2167.0 2.025 337.1
2177.0 2.216 335.3
2187.0 2.390 333.9
2197.0 2.550 332.6
2207.0 2.696 331.5
2217.0 2.830 330.5
2227.0 2.952 329.5
2237.0 3.064 328.7
2247.0 3.166 327.9
2257.0 3.258 327.1
2267.0 3.343 326.4
2277.0 3.420 325.7
2287.0 3.489 325.1
2297.0 3.551 324.5
2307.0 3.607 323.9
2317.0 3.657 323.3
2327.0 3.701 322.7
2337.0 3.739 322.1
2347.0 3.772 321.6
2357.0 3.801 321.0
2367.0 3.824 320.5
2377.0 3.843 320.0
2387.0 3.857 319.5
2397.0 3.868 318.9
2407.0 3.874 318.4
2417.0 3.877 317.9
2427.0 3.876 317.4
2437.0 3.871 316.9
2447.0 3.863 316.4
2457.0 3.852 315.8
2467.0 3.837 315.3
2477.0 3.820 314.8
2487.0 3.799 314.2
2497.0 3.776 313.7
2507.0 3.749 313.2
2517.0 3.721 312.6
2527.0 3.689 312.0
2537.0 3.655 311.5
2547.0 3.619 310.9
2557.0 3.580 310.3
2567.0 3.539 309.7
2577.0 3.495 309.0
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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