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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:32:26
WDS:
STF2881
WDS ID/Discoverer
P:
1345.330
Orbital period (years)
a:
4.07325
Semi-major axis (arcseconds)
i:
100.17
Inclination (degrees)
Ω:
121.211
Longitude of ascending node (degrees)
T:
1764.507
Epoch of periastron passage (year)
e:
0.82377
Eccentricity
ω:
285.332
Longitude of periastron (degrees)
Start-Year:
1353.0
Year
End-Year:
2697.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
221434.67+293420.6
Epoch-2000 right ascension and declination
WDS-ID:
22146+2934
WDS designation
Discoverer Code:
STF2881
Discover designation and components
ADS number:
15769
Aitken Double Star catalog
HD number:
211139
HD catalog number
Hipparcos number:
109815
Hipparcos catalog number
V1:
7.65
Magnitude of the primary
V2:
8.24
Magnitude of the secondary
Equinox:
Equinox
Date:
2015
Date of last observation
Orbit grade:
4
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 1.197 69.3
-------------------------
1353.0 3.305 319.5
1363.0 3.328 319.1
1373.0 3.349 318.7
1383.0 3.368 318.3
1393.0 3.385 317.9
1403.0 3.401 317.5
1413.0 3.415 317.1
1423.0 3.427 316.7
1433.0 3.437 316.4
1443.0 3.445 316.0
1453.0 3.450 315.6
1463.0 3.454 315.2
1473.0 3.454 314.9
1483.0 3.453 314.5
1493.0 3.448 314.1
1503.0 3.441 313.7
1513.0 3.430 313.4
1523.0 3.417 313.0
1533.0 3.399 312.6
1543.0 3.378 312.2
1553.0 3.354 311.8
1563.0 3.324 311.4
1573.0 3.290 311.0
1583.0 3.252 310.6
1593.0 3.207 310.2
1603.0 3.157 309.7
1613.0 3.100 309.3
1623.0 3.036 308.8
1633.0 2.964 308.3
1643.0 2.882 307.8
1653.0 2.790 307.3
1663.0 2.687 306.7
1673.0 2.569 306.0
1683.0 2.435 305.3
1693.0 2.282 304.5
1703.0 2.104 303.6
1713.0 1.896 302.5
1723.0 1.649 301.1
1733.0 1.348 299.1
1743.0 0.972 295.7
1753.0 0.500 286.8
1763.0 0.161 172.7
1773.0 0.650 128.5
1783.0 1.019 122.0
1793.0 1.254 118.6
1803.0 1.404 116.1
1813.0 1.502 114.0
1823.0 1.565 112.1
1833.0 1.604 110.3
1843.0 1.625 108.6
1853.0 1.633 107.0
1863.0 1.632 105.3
1873.0 1.622 103.6
1883.0 1.607 101.9
1893.0 1.587 100.2
1903.0 1.563 98.4
1913.0 1.536 96.5
1923.0 1.507 94.6
1933.0 1.476 92.6
1943.0 1.444 90.5
1953.0 1.412 88.4
1963.0 1.379 86.1
1973.0 1.347 83.7
1983.0 1.315 81.2
1993.0 1.285 78.5
2003.0 1.256 75.8
2013.0 1.228 72.9
2023.0 1.202 69.9
2033.0 1.179 66.8
2043.0 1.158 63.5
2053.0 1.141 60.1
2063.0 1.126 56.7
2073.0 1.115 53.1
2083.0 1.107 49.5
2093.0 1.103 45.9
2103.0 1.102 42.2
2113.0 1.106 38.6
2123.0 1.113 35.0
2133.0 1.124 31.4
2143.0 1.138 27.9
2153.0 1.156 24.6
2163.0 1.177 21.3
2173.0 1.202 18.1
2183.0 1.229 15.1
2193.0 1.259 12.3
2203.0 1.291 9.5
2213.0 1.325 6.9
2223.0 1.362 4.5
2233.0 1.400 2.1
2243.0 1.439 359.9
2253.0 1.481 357.8
2263.0 1.523 355.9
2273.0 1.566 354.0
2283.0 1.611 352.2
2293.0 1.656 350.6
2303.0 1.702 349.0
2313.0 1.748 347.5
2323.0 1.795 346.1
2333.0 1.842 344.7
2343.0 1.890 343.5
2353.0 1.937 342.3
2363.0 1.985 341.1
2373.0 2.033 340.0
2383.0 2.081 338.9
2393.0 2.128 337.9
2403.0 2.176 337.0
2413.0 2.223 336.1
2423.0 2.270 335.2
2433.0 2.317 334.3
2443.0 2.363 333.5
2453.0 2.409 332.7
2463.0 2.455 332.0
2473.0 2.500 331.3
2483.0 2.545 330.6
2493.0 2.589 329.9
2503.0 2.632 329.2
2513.0 2.675 328.6
2523.0 2.717 328.0
2533.0 2.758 327.4
2543.0 2.799 326.8
2553.0 2.839 326.3
2563.0 2.878 325.7
2573.0 2.916 325.2
2583.0 2.954 324.7
2593.0 2.990 324.2
2603.0 3.025 323.7
2613.0 3.060 323.2
2623.0 3.093 322.7
2633.0 3.125 322.3
2643.0 3.156 321.8
2653.0 3.186 321.4
2663.0 3.215 321.0
2673.0 3.242 320.5
2683.0 3.268 320.1
2693.0 3.293 319.7
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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