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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 16:16:47
WDS:
STT547AB
WDS ID/Discoverer
P:
1550.637
Orbital period (years)
a:
11.7613
Semi-major axis (arcseconds)
i:
56.68
Inclination (degrees)
Ω:
175.14
Longitude of ascending node (degrees)
T:
1970.438
Epoch of periastron passage (year)
e:
0.4973
Eccentricity
ω:
349.37
Longitude of periastron (degrees)
Start-Year:
1250.0
Year
End-Year:
2800.0
Year
Epoch:
2025.0
Besselian Epoch
Position:
000541.03+454843.3
Epoch-2000 right ascension and declination
WDS-ID:
00057+4549
WDS designation
Discoverer Code:
STT547AB
Discover designation and components
ADS number:
48
Aitken Double Star catalog
HD number:
38
HD catalog number
Hipparcos number:
473
Hipparcos catalog number
V1:
8.98
Magnitude of the primary
V2:
9.15
Magnitude of the secondary
Equinox:
2000
Equinox
Date:
1994
Date of last observation
Orbit grade:
4
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 5.834 193.0
-------------------------
1250.0 17.485 352.0
1260.0 17.477 352.5
1270.0 17.462 353.0
1280.0 17.439 353.5
1290.0 17.409 354.0
1300.0 17.372 354.5
1310.0 17.327 355.0
1320.0 17.274 355.5
1330.0 17.214 356.1
1340.0 17.146 356.6
1350.0 17.071 357.1
1360.0 16.988 357.6
1370.0 16.897 358.2
1380.0 16.798 358.7
1390.0 16.692 359.2
1400.0 16.578 359.8
1410.0 16.455 0.4
1420.0 16.325 0.9
1430.0 16.187 1.5
1440.0 16.040 2.1
1450.0 15.886 2.7
1460.0 15.723 3.3
1470.0 15.552 3.9
1480.0 15.373 4.6
1490.0 15.185 5.2
1500.0 14.989 5.9
1510.0 14.785 6.6
1520.0 14.572 7.3
1530.0 14.350 8.0
1540.0 14.120 8.8
1550.0 13.881 9.6
1560.0 13.633 10.4
1570.0 13.377 11.2
1580.0 13.112 12.1
1590.0 12.839 13.0
1600.0 12.556 14.0
1610.0 12.266 14.9
1620.0 11.966 16.0
1630.0 11.658 17.1
1640.0 11.341 18.2
1650.0 11.017 19.5
1660.0 10.684 20.8
1670.0 10.343 22.2
1680.0 9.996 23.6
1690.0 9.640 25.2
1700.0 9.279 26.9
1710.0 8.912 28.8
1720.0 8.539 30.8
1730.0 8.163 33.0
1740.0 7.785 35.4
1750.0 7.405 38.1
1760.0 7.027 41.0
1770.0 6.653 44.3
1780.0 6.286 47.9
1790.0 5.931 52.0
1800.0 5.591 56.7
1810.0 5.275 61.8
1820.0 4.988 67.7
1830.0 4.739 74.2
1840.0 4.537 81.3
1850.0 4.389 89.0
1860.0 4.302 97.1
1870.0 4.280 105.4
1880.0 4.320 113.7
1890.0 4.418 121.8
1900.0 4.564 129.4
1910.0 4.745 136.5
1920.0 4.947 143.0
1930.0 5.158 149.0
1940.0 5.362 154.5
1950.0 5.550 159.6
1960.0 5.711 164.5
1970.0 5.837 169.1
1980.0 5.924 173.5
1990.0 5.970 177.8
2000.0 5.974 182.1
2010.0 5.942 186.4
2020.0 5.877 190.8
2030.0 5.785 195.3
2040.0 5.675 199.9
2050.0 5.555 204.8
2060.0 5.432 209.9
2070.0 5.314 215.2
2080.0 5.210 220.7
2090.0 5.125 226.4
2100.0 5.065 232.3
2110.0 5.037 238.3
2120.0 5.042 244.4
2130.0 5.082 250.4
2140.0 5.159 256.2
2150.0 5.270 261.8
2160.0 5.414 267.2
2170.0 5.588 272.3
2180.0 5.788 277.0
2190.0 6.011 281.4
2200.0 6.254 285.5
2210.0 6.513 289.2
2220.0 6.785 292.7
2230.0 7.068 295.9
2240.0 7.359 298.8
2250.0 7.656 301.6
2260.0 7.958 304.1
2270.0 8.263 306.4
2280.0 8.569 308.6
2290.0 8.875 310.6
2300.0 9.181 312.4
2310.0 9.485 314.2
2320.0 9.787 315.8
2330.0 10.087 317.4
2340.0 10.383 318.9
2350.0 10.675 320.2
2360.0 10.963 321.5
2370.0 11.247 322.8
2380.0 11.525 324.0
2390.0 11.799 325.1
2400.0 12.067 326.2
2410.0 12.330 327.2
2420.0 12.587 328.2
2430.0 12.838 329.1
2440.0 13.084 330.0
2450.0 13.323 330.9
2460.0 13.556 331.8
2470.0 13.783 332.6
2480.0 14.003 333.4
2490.0 14.217 334.1
2500.0 14.425 334.9
2510.0 14.626 335.6
2520.0 14.820 336.3
2530.0 15.008 337.0
2540.0 15.190 337.7
2550.0 15.364 338.3
2560.0 15.532 339.0
2570.0 15.693 339.6
2580.0 15.847 340.2
2590.0 15.995 340.8
2600.0 16.136 341.4
2610.0 16.270 342.0
2620.0 16.397 342.6
2630.0 16.517 343.1
2640.0 16.630 343.7
2650.0 16.736 344.3
2660.0 16.836 344.8
2670.0 16.928 345.3
2680.0 17.014 345.9
2690.0 17.092 346.4
2700.0 17.163 346.9
2710.0 17.228 347.4
2720.0 17.285 347.9
2730.0 17.335 348.5
2740.0 17.378 349.0
2750.0 17.414 349.5
2760.0 17.443 350.0
2770.0 17.464 350.5
2780.0 17.479 351.0
2790.0 17.486 351.5
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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