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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:17:52
WDS:
STT424AB
WDS ID/Discoverer
P:
1629.000
Orbital period (years)
a:
0.547
Semi-major axis (arcseconds)
i:
121.2
Inclination (degrees)
Ω:
128.2
Longitude of ascending node (degrees)
T:
1686.300
Epoch of periastron passage (year)
e:
0.223
Eccentricity
ω:
89.9
Longitude of periastron (degrees)
Start-Year:
1211.0
Year
End-Year:
2839.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
205916.45+153421.8
Epoch-2000 right ascension and declination
WDS-ID:
20593+1534
WDS designation
Discoverer Code:
STT424AB
Discover designation and components
ADS number:
14505
Aitken Double Star catalog
HD number:
199839
HD catalog number
Hipparcos number:
103584
Hipparcos catalog number
V1:
8.43
Magnitude of the primary
V2:
9.39
Magnitude of the secondary
Equinox:
Equinox
Date:
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 0.535 302.7
-------------------------
1211.0 0.513 149.9
1221.0 0.517 148.7
1231.0 0.521 147.4
1241.0 0.525 146.2
1251.0 0.528 145.0
1261.0 0.531 143.8
1271.0 0.533 142.6
1281.0 0.535 141.5
1291.0 0.537 140.3
1301.0 0.538 139.2
1311.0 0.538 138.0
1321.0 0.538 136.8
1331.0 0.537 135.7
1341.0 0.536 134.5
1351.0 0.534 133.4
1361.0 0.532 132.2
1371.0 0.529 131.0
1381.0 0.525 129.8
1391.0 0.521 128.6
1401.0 0.516 127.3
1411.0 0.511 126.1
1421.0 0.504 124.8
1431.0 0.497 123.4
1441.0 0.490 122.1
1451.0 0.481 120.7
1461.0 0.472 119.2
1471.0 0.463 117.7
1481.0 0.452 116.1
1491.0 0.441 114.4
1501.0 0.430 112.6
1511.0 0.418 110.8
1521.0 0.405 108.8
1531.0 0.392 106.7
1541.0 0.378 104.4
1551.0 0.364 102.0
1561.0 0.350 99.4
1571.0 0.335 96.6
1581.0 0.321 93.5
1591.0 0.307 90.1
1601.0 0.293 86.3
1611.0 0.279 82.3
1621.0 0.266 77.8
1631.0 0.255 72.8
1641.0 0.244 67.5
1651.0 0.235 61.6
1661.0 0.228 55.4
1671.0 0.223 48.8
1681.0 0.221 42.0
1691.0 0.220 35.2
1701.0 0.223 28.3
1711.0 0.227 21.7
1721.0 0.234 15.5
1731.0 0.243 9.6
1741.0 0.253 4.2
1751.0 0.265 359.2
1761.0 0.278 354.7
1771.0 0.291 350.5
1781.0 0.305 346.8
1791.0 0.319 343.3
1801.0 0.334 340.2
1811.0 0.348 337.3
1821.0 0.363 334.7
1831.0 0.377 332.2
1841.0 0.390 330.0
1851.0 0.403 327.9
1861.0 0.416 325.9
1871.0 0.428 324.0
1881.0 0.440 322.2
1891.0 0.451 320.5
1901.0 0.462 318.9
1911.0 0.471 317.4
1921.0 0.480 315.9
1931.0 0.489 314.5
1941.0 0.497 313.1
1951.0 0.504 311.8
1961.0 0.510 310.5
1971.0 0.516 309.2
1981.0 0.521 308.0
1991.0 0.525 306.8
2001.0 0.529 305.6
2011.0 0.532 304.4
2021.0 0.535 303.2
2031.0 0.536 302.0
2041.0 0.538 300.9
2051.0 0.538 299.7
2061.0 0.539 298.6
2071.0 0.538 297.4
2081.0 0.537 296.3
2091.0 0.536 295.1
2101.0 0.534 294.0
2111.0 0.532 292.8
2121.0 0.529 291.6
2131.0 0.526 290.4
2141.0 0.522 289.2
2151.0 0.519 287.9
2161.0 0.514 286.7
2171.0 0.510 285.4
2181.0 0.505 284.1
2191.0 0.500 282.8
2201.0 0.494 281.4
2211.0 0.488 280.1
2221.0 0.483 278.6
2231.0 0.477 277.2
2241.0 0.470 275.7
2251.0 0.464 274.2
2261.0 0.458 272.6
2271.0 0.451 271.0
2281.0 0.444 269.3
2291.0 0.438 267.6
2301.0 0.431 265.8
2311.0 0.425 264.0
2321.0 0.418 262.1
2331.0 0.412 260.2
2341.0 0.405 258.2
2351.0 0.399 256.1
2361.0 0.393 254.0
2371.0 0.387 251.8
2381.0 0.382 249.5
2391.0 0.377 247.2
2401.0 0.372 244.8
2411.0 0.367 242.4
2421.0 0.363 239.9
2431.0 0.359 237.3
2441.0 0.356 234.7
2451.0 0.353 232.1
2461.0 0.351 229.4
2471.0 0.349 226.6
2481.0 0.348 223.9
2491.0 0.347 221.1
2501.0 0.347 218.3
2511.0 0.347 215.6
2521.0 0.348 212.8
2531.0 0.349 210.0
2541.0 0.351 207.3
2551.0 0.353 204.6
2561.0 0.356 201.9
2571.0 0.359 199.3
2581.0 0.363 196.8
2591.0 0.367 194.3
2601.0 0.371 191.8
2611.0 0.376 189.4
2621.0 0.381 187.1
2631.0 0.387 184.8
2641.0 0.392 182.6
2651.0 0.398 180.5
2661.0 0.405 178.4
2671.0 0.411 176.4
2681.0 0.417 174.5
2691.0 0.424 172.6
2701.0 0.430 170.7
2711.0 0.437 169.0
2721.0 0.444 167.2
2731.0 0.450 165.6
2741.0 0.457 163.9
2751.0 0.463 162.4
2761.0 0.470 160.8
2771.0 0.476 159.3
2781.0 0.482 157.9
2791.0 0.488 156.5
2801.0 0.493 155.1
2811.0 0.499 153.7
2821.0 0.504 152.4
2831.0 0.509 151.1
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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