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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:19:17

Orbital Elements for STF1769AB
WDS: STF1769AB WDS ID/Discoverer
P: 2616.357 Orbital period (years)
a: 4.97148 Semi-major axis (arcseconds)
i: 75.356 Inclination (degrees)
Ω: 173.088 Longitude of ascending node (degrees)
T: 2327.790 Epoch of periastron passage (year)
e: 0.79906 Eccentricity
ω: 40.904 Longitude of periastron (degrees)
Start-Year: 717.0 Year
End-Year: 3333.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1769AB
Position: 133801.95+391041.0 Epoch-2000 right ascension and declination
WDS-ID: 13381+3910 WDS designation
Discoverer Code: STF1769AB Discover designation and components
ADS number: 8981 Aitken Double Star catalog
HD number: 118742 HD catalog number
Hipparcos number: 66514 Hipparcos catalog number
V1: 7.91 Magnitude of the primary
V2: 10.42 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1769AB



WDS 6th Orbit including measures of STF1769AB

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


Ephemeris of STF1769AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.479     46.7
-------------------------
717.0      7.325      2.4
727.0      7.322      2.5
737.0      7.319      2.6
747.0      7.315      2.7
757.0      7.310      2.8
767.0      7.304      2.9
777.0      7.298      3.0
787.0      7.290      3.1
797.0      7.282      3.2
807.0      7.274      3.3
817.0      7.264      3.4
827.0      7.254      3.5
837.0      7.243      3.6
847.0      7.232      3.7
857.0      7.219      3.8
867.0      7.206      3.9
877.0      7.192      4.0
887.0      7.178      4.1
897.0      7.163      4.2
907.0      7.147      4.3
917.0      7.130      4.4
927.0      7.113      4.5
937.0      7.095      4.6
947.0      7.076      4.7
957.0      7.057      4.8
967.0      7.037      4.9
977.0      7.016      5.0
987.0      6.995      5.1
997.0      6.973      5.2
1007.0     6.950      5.3
1017.0     6.926      5.4
1027.0     6.902      5.5
1037.0     6.878      5.6
1047.0     6.852      5.7
1057.0     6.826      5.9
1067.0     6.800      6.0
1077.0     6.772      6.1
1087.0     6.744      6.2
1097.0     6.716      6.3
1107.0     6.686      6.4
1117.0     6.657      6.5
1127.0     6.626      6.7
1137.0     6.595      6.8
1147.0     6.563      6.9
1157.0     6.531      7.0
1167.0     6.498      7.1
1177.0     6.464      7.3
1187.0     6.429      7.4
1197.0     6.395      7.5
1207.0     6.359      7.6
1217.0     6.323      7.8
1227.0     6.286      7.9
1237.0     6.248      8.0
1247.0     6.210      8.2
1257.0     6.172      8.3
1267.0     6.132      8.4
1277.0     6.092      8.6
1287.0     6.052      8.7
1297.0     6.011      8.8
1307.0     5.969      9.0
1317.0     5.926      9.1
1327.0     5.883      9.3
1337.0     5.840      9.4
1347.0     5.796      9.6
1357.0     5.751      9.7
1367.0     5.705      9.9
1377.0     5.659     10.1
1387.0     5.612     10.2
1397.0     5.565     10.4
1407.0     5.517     10.6
1417.0     5.469     10.7
1427.0     5.420     10.9
1437.0     5.370     11.1
1447.0     5.319     11.3
1457.0     5.268     11.4
1467.0     5.217     11.6
1477.0     5.165     11.8
1487.0     5.112     12.0
1497.0     5.058     12.2
1507.0     5.004     12.4
1517.0     4.950     12.6
1527.0     4.895     12.8
1537.0     4.839     13.1
1547.0     4.782     13.3
1557.0     4.725     13.5
1567.0     4.668     13.8
1577.0     4.609     14.0
1587.0     4.550     14.2
1597.0     4.491     14.5
1607.0     4.431     14.8
1617.0     4.370     15.0
1627.0     4.309     15.3
1637.0     4.247     15.6
1647.0     4.185     15.9
1657.0     4.122     16.2
1667.0     4.058     16.5
1677.0     3.994     16.8
1687.0     3.929     17.1
1697.0     3.863     17.5
1707.0     3.797     17.8
1717.0     3.731     18.2
1727.0     3.664     18.6
1737.0     3.596     19.0
1747.0     3.527     19.4
1757.0     3.459     19.8
1767.0     3.389     20.2
1777.0     3.319     20.7
1787.0     3.249     21.2
1797.0     3.178     21.7
1807.0     3.106     22.2
1817.0     3.034     22.7
1827.0     2.961     23.3
1837.0     2.888     23.9
1847.0     2.815     24.6
1857.0     2.741     25.2
1867.0     2.666     25.9
1877.0     2.592     26.7
1887.0     2.517     27.5
1897.0     2.441     28.3
1907.0     2.365     29.2
1917.0     2.289     30.2
1927.0     2.213     31.2
1937.0     2.137     32.3
1947.0     2.061     33.4
1957.0     1.985     34.7
1967.0     1.909     36.1
1977.0     1.833     37.6
1987.0     1.758     39.2
1997.0     1.683     40.9
2007.0     1.609     42.8
2017.0     1.536     44.9
2027.0     1.465     47.2
2037.0     1.395     49.7
2047.0     1.327     52.5
2057.0     1.261     55.6
2067.0     1.199     59.0
2077.0     1.140     62.8
2087.0     1.086     67.0
2097.0     1.037     71.6
2107.0     0.994     76.6
2117.0     0.959     82.0
2127.0     0.931     87.8
2137.0     0.912     93.9
2147.0     0.902    100.2
2157.0     0.902    106.6
2167.0     0.911    112.9
2177.0     0.929    119.0
2187.0     0.954    124.9
2197.0     0.986    130.3
2207.0     1.023    135.5
2217.0     1.064    140.2
2227.0     1.106    144.6
2237.0     1.148    148.7
2247.0     1.187    152.5
2257.0     1.220    156.0
2267.0     1.243    159.5
2277.0     1.252    162.8
2287.0     1.239    166.1
2297.0     1.196    169.6
2307.0     1.112    173.4
2317.0     0.977    178.1
2327.0     0.790    184.8
2337.0     0.565    196.3
2347.0     0.356    222.6
2357.0     0.313    276.1
2367.0     0.493    311.6
2377.0     0.740    325.8
2387.0     0.994    332.9
2397.0     1.242    337.0
2407.0     1.479    339.9
2417.0     1.704    341.9
2427.0     1.919    343.5
2437.0     2.124    344.7
2447.0     2.318    345.8
2457.0     2.504    346.7
2467.0     2.682    347.5
2477.0     2.851    348.1
2487.0     3.014    348.7
2497.0     3.170    349.3
2507.0     3.320    349.8
2517.0     3.464    350.2
2527.0     3.603    350.6
2537.0     3.737    351.0
2547.0     3.866    351.4
2557.0     3.990    351.7
2567.0     4.110    352.0
2577.0     4.226    352.3
2587.0     4.339    352.6
2597.0     4.447    352.9
2607.0     4.552    353.1
2617.0     4.654    353.4
2627.0     4.753    353.6
2637.0     4.848    353.8
2647.0     4.941    354.0
2657.0     5.031    354.2
2667.0     5.118    354.5
2677.0     5.202    354.6
2687.0     5.284    354.8
2697.0     5.364    355.0
2707.0     5.441    355.2
2717.0     5.516    355.4
2727.0     5.588    355.5
2737.0     5.659    355.7
2747.0     5.727    355.9
2757.0     5.794    356.0
2767.0     5.858    356.2
2777.0     5.921    356.3
2787.0     5.982    356.5
2797.0     6.041    356.6
2807.0     6.098    356.7
2817.0     6.153    356.9
2827.0     6.207    357.0
2837.0     6.259    357.1
2847.0     6.310    357.3
2857.0     6.359    357.4
2867.0     6.406    357.5
2877.0     6.452    357.7
2887.0     6.497    357.8
2897.0     6.540    357.9
2907.0     6.582    358.0
2917.0     6.622    358.1
2927.0     6.661    358.3
2937.0     6.699    358.4
2947.0     6.735    358.5
2957.0     6.770    358.6
2967.0     6.804    358.7
2977.0     6.837    358.8
2987.0     6.868    358.9
2997.0     6.899    359.0
3007.0     6.928    359.2
3017.0     6.956    359.3
3027.0     6.982    359.4
3037.0     7.008    359.5
3047.0     7.033    359.6
3057.0     7.056    359.7
3067.0     7.078    359.8
3077.0     7.100    359.9
3087.0     7.120    360.0
3097.0     7.139      0.1
3107.0     7.158      0.2
3117.0     7.175      0.3
3127.0     7.191      0.4
3137.0     7.207      0.5
3147.0     7.221      0.6
3157.0     7.234      0.7
3167.0     7.247      0.8
3177.0     7.258      0.9
3187.0     7.269      1.0
3197.0     7.279      1.1
3207.0     7.287      1.2
3217.0     7.295      1.3
3227.0     7.302      1.4
3237.0     7.309      1.5
3247.0     7.314      1.6
3257.0     7.318      1.7
3267.0     7.322      1.8
3277.0     7.325      1.9
3287.0     7.327      2.0
3297.0     7.328      2.1
3307.0     7.328      2.1
3317.0     7.328      2.2
3327.0     7.326      2.3






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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