Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:16:47

Orbital Elements for STT547AB
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

Further data from the WDS Sixth Catalog of Orbits for STT547AB
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

Double Star Orbit for STT547AB



WDS 6th Orbit including measures of STT547AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of STT547AB
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






Disclaimer
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.


Acknowledgements
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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