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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:12:14

Orbital Elements for STF1658AB
WDS: STF1658AB WDS ID/Discoverer
P: 1797.231 Orbital period (years)
a: 5.66667 Semi-major axis (arcseconds)
i: 67.045 Inclination (degrees)
Ω: 125.517 Longitude of ascending node (degrees)
T: 1731.624 Epoch of periastron passage (year)
e: 0.85959 Eccentricity
ω: 107.803 Longitude of periastron (degrees)
Start-Year: 1127.0 Year
End-Year: 2923.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1658AB
Position: 123507.88+072634.6 Epoch-2000 right ascension and declination
WDS-ID: 12351+0727 WDS designation
Discoverer Code: STF1658AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 109499 HD catalog number
Hipparcos number: 61419 Hipparcos catalog number
V1: 8.08 Magnitude of the primary
V2: 10.52 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: n Flags

Double Star Orbit for STF1658AB



WDS 6th Orbit including measures of STF1658AB

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


Ephemeris of STF1658AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.807     21.5
-------------------------
1127.0     5.584     88.0
1137.0     5.589     88.4
1147.0     5.592     88.8
1157.0     5.594     89.3
1167.0     5.595     89.7
1177.0     5.595     90.1
1187.0     5.594     90.5
1197.0     5.592     90.9
1207.0     5.588     91.3
1217.0     5.583     91.7
1227.0     5.577     92.1
1237.0     5.570     92.5
1247.0     5.561     93.0
1257.0     5.551     93.4
1267.0     5.539     93.8
1277.0     5.526     94.2
1287.0     5.511     94.6
1297.0     5.494     95.0
1307.0     5.476     95.5
1317.0     5.457     95.9
1327.0     5.435     96.3
1337.0     5.412     96.8
1347.0     5.387     97.2
1357.0     5.360     97.7
1367.0     5.331     98.1
1377.0     5.299     98.6
1387.0     5.266     99.0
1397.0     5.230     99.5
1407.0     5.192    100.0
1417.0     5.152    100.4
1427.0     5.109    100.9
1437.0     5.063    101.4
1447.0     5.014    101.9
1457.0     4.963    102.4
1467.0     4.908    103.0
1477.0     4.850    103.5
1487.0     4.788    104.1
1497.0     4.722    104.6
1507.0     4.653    105.2
1517.0     4.579    105.8
1527.0     4.501    106.4
1537.0     4.418    107.1
1547.0     4.329    107.7
1557.0     4.235    108.4
1567.0     4.135    109.2
1577.0     4.028    109.9
1587.0     3.913    110.8
1597.0     3.790    111.6
1607.0     3.658    112.5
1617.0     3.515    113.5
1627.0     3.360    114.6
1637.0     3.192    115.8
1647.0     3.007    117.2
1657.0     2.804    118.7
1667.0     2.577    120.4
1677.0     2.322    122.6
1687.0     2.030    125.3
1697.0     1.690    129.0
1707.0     1.284    134.9
1717.0     0.795    147.3
1727.0     0.331    201.4
1737.0     0.634    284.0
1747.0     1.069    302.4
1757.0     1.365    311.1
1767.0     1.567    317.0
1777.0     1.713    321.8
1787.0     1.825    325.9
1797.0     1.914    329.5
1807.0     1.987    332.9
1817.0     2.049    336.0
1827.0     2.103    339.0
1837.0     2.151    341.8
1847.0     2.194    344.6
1857.0     2.234    347.2
1867.0     2.271    349.7
1877.0     2.307    352.1
1887.0     2.341    354.5
1897.0     2.375    356.8
1907.0     2.408    359.1
1917.0     2.440      1.2
1927.0     2.473      3.4
1937.0     2.506      5.4
1947.0     2.539      7.5
1957.0     2.572      9.4
1967.0     2.605     11.3
1977.0     2.639     13.2
1987.0     2.673     15.0
1997.0     2.708     16.8
2007.0     2.743     18.5
2017.0     2.778     20.2
2027.0     2.814     21.8
2037.0     2.851     23.4
2047.0     2.888     25.0
2057.0     2.925     26.5
2067.0     2.963     28.0
2077.0     3.001     29.4
2087.0     3.040     30.8
2097.0     3.078     32.2
2107.0     3.118     33.5
2117.0     3.157     34.8
2127.0     3.197     36.1
2137.0     3.237     37.3
2147.0     3.277     38.6
2157.0     3.317     39.7
2167.0     3.358     40.9
2177.0     3.398     42.0
2187.0     3.439     43.1
2197.0     3.480     44.2
2207.0     3.521     45.2
2217.0     3.562     46.2
2227.0     3.603     47.2
2237.0     3.644     48.2
2247.0     3.685     49.2
2257.0     3.726     50.1
2267.0     3.767     51.0
2277.0     3.808     51.9
2287.0     3.848     52.8
2297.0     3.889     53.6
2307.0     3.929     54.5
2317.0     3.970     55.3
2327.0     4.010     56.1
2337.0     4.050     56.9
2347.0     4.089     57.7
2357.0     4.129     58.4
2367.0     4.168     59.2
2377.0     4.207     59.9
2387.0     4.246     60.6
2397.0     4.284     61.3
2407.0     4.322     62.0
2417.0     4.360     62.7
2427.0     4.398     63.4
2437.0     4.435     64.0
2447.0     4.471     64.7
2457.0     4.508     65.3
2467.0     4.544     65.9
2477.0     4.580     66.6
2487.0     4.615     67.2
2497.0     4.650     67.8
2507.0     4.684     68.3
2517.0     4.718     68.9
2527.0     4.752     69.5
2537.0     4.785     70.1
2547.0     4.817     70.6
2557.0     4.849     71.2
2567.0     4.881     71.7
2577.0     4.912     72.2
2587.0     4.943     72.8
2597.0     4.973     73.3
2607.0     5.002     73.8
2617.0     5.031     74.3
2627.0     5.060     74.8
2637.0     5.087     75.3
2647.0     5.115     75.8
2657.0     5.141     76.3
2667.0     5.167     76.8
2677.0     5.193     77.3
2687.0     5.218     77.7
2697.0     5.242     78.2
2707.0     5.265     78.7
2717.0     5.288     79.1
2727.0     5.310     79.6
2737.0     5.331     80.0
2747.0     5.352     80.5
2757.0     5.372     80.9
2767.0     5.391     81.4
2777.0     5.410     81.8
2787.0     5.428     82.2
2797.0     5.445     82.7
2807.0     5.461     83.1
2817.0     5.476     83.5
2827.0     5.490     84.0
2837.0     5.504     84.4
2847.0     5.517     84.8
2857.0     5.529     85.2
2867.0     5.540     85.7
2877.0     5.550     86.1
2887.0     5.559     86.5
2897.0     5.567     86.9
2907.0     5.574     87.3
2917.0     5.580     87.7






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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