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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:43:16

Orbital Elements for STF1291AB
WDS: STF1291AB WDS ID/Discoverer
P: 2336.146 Orbital period (years)
a: 3.61518 Semi-major axis (arcseconds)
i: 104.575 Inclination (degrees)
Ω: 91.152 Longitude of ascending node (degrees)
T: 2351.936 Epoch of periastron passage (year)
e: 0.79596 Eccentricity
ω: 254.31 Longitude of periastron (degrees)
Start-Year: 857.0 Year
End-Year: 3193.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1291AB
Position: 085414.65+303445.8 Epoch-2000 right ascension and declination
WDS-ID: 08542+3035 WDS designation
Discoverer Code: STF1291AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 75959 HD catalog number
Hipparcos number: 43721 Hipparcos catalog number
V1: 6.09 Magnitude of the primary
V2: 6.37 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 STF1291AB



WDS 6th Orbit including measures of STF1291AB

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


Ephemeris of STF1291AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     1.536    308.6
-------------------------
857.0      2.990     63.3
867.0      2.974     63.0
877.0      2.958     62.6
887.0      2.942     62.3
897.0      2.926     61.9
907.0      2.909     61.6
917.0      2.892     61.2
927.0      2.875     60.8
937.0      2.857     60.5
947.0      2.840     60.1
957.0      2.821     59.7
967.0      2.803     59.3
977.0      2.784     58.9
987.0      2.766     58.5
997.0      2.747     58.1
1007.0     2.727     57.7
1017.0     2.708     57.3
1027.0     2.688     56.9
1037.0     2.668     56.4
1047.0     2.648     56.0
1057.0     2.628     55.6
1067.0     2.607     55.1
1077.0     2.587     54.7
1087.0     2.566     54.2
1097.0     2.545     53.7
1107.0     2.524     53.3
1117.0     2.502     52.8
1127.0     2.481     52.3
1137.0     2.460     51.8
1147.0     2.438     51.3
1157.0     2.416     50.7
1167.0     2.394     50.2
1177.0     2.372     49.7
1187.0     2.350     49.1
1197.0     2.328     48.6
1207.0     2.306     48.0
1217.0     2.284     47.4
1227.0     2.262     46.8
1237.0     2.240     46.2
1247.0     2.217     45.6
1257.0     2.195     45.0
1267.0     2.173     44.3
1277.0     2.150     43.7
1287.0     2.128     43.0
1297.0     2.106     42.3
1307.0     2.084     41.6
1317.0     2.061     40.9
1327.0     2.039     40.2
1337.0     2.017     39.4
1347.0     1.995     38.7
1357.0     1.973     37.9
1367.0     1.952     37.1
1377.0     1.930     36.3
1387.0     1.909     35.4
1397.0     1.887     34.6
1407.0     1.866     33.7
1417.0     1.845     32.8
1427.0     1.825     31.9
1437.0     1.804     31.0
1447.0     1.784     30.0
1457.0     1.764     29.0
1467.0     1.744     28.0
1477.0     1.725     27.0
1487.0     1.705     26.0
1497.0     1.687     24.9
1507.0     1.668     23.8
1517.0     1.650     22.7
1527.0     1.632     21.6
1537.0     1.615     20.4
1547.0     1.598     19.2
1557.0     1.582     18.0
1567.0     1.566     16.8
1577.0     1.551     15.5
1587.0     1.536     14.2
1597.0     1.522     12.9
1607.0     1.508     11.6
1617.0     1.495     10.2
1627.0     1.482      8.8
1637.0     1.470      7.4
1647.0     1.459      6.0
1657.0     1.448      4.5
1667.0     1.438      3.1
1677.0     1.429      1.6
1687.0     1.420      0.1
1697.0     1.413    358.5
1707.0     1.406    357.0
1717.0     1.399    355.4
1727.0     1.394    353.8
1737.0     1.389    352.3
1747.0     1.385    350.7
1757.0     1.382    349.1
1767.0     1.379    347.4
1777.0     1.378    345.8
1787.0     1.377    344.2
1797.0     1.377    342.6
1807.0     1.377    341.0
1817.0     1.379    339.4
1827.0     1.381    337.8
1837.0     1.384    336.1
1847.0     1.387    334.5
1857.0     1.392    333.0
1867.0     1.397    331.4
1877.0     1.402    329.8
1887.0     1.408    328.3
1897.0     1.415    326.7
1907.0     1.423    325.2
1917.0     1.430    323.7
1927.0     1.439    322.2
1937.0     1.447    320.7
1947.0     1.457    319.3
1957.0     1.466    317.8
1967.0     1.476    316.4
1977.0     1.486    315.0
1987.0     1.496    313.6
1997.0     1.507    312.3
2007.0     1.517    310.9
2017.0     1.528    309.6
2027.0     1.538    308.3
2037.0     1.548    307.0
2047.0     1.559    305.7
2057.0     1.569    304.5
2067.0     1.578    303.2
2077.0     1.587    302.0
2087.0     1.596    300.8
2097.0     1.604    299.6
2107.0     1.611    298.4
2117.0     1.618    297.3
2127.0     1.623    296.1
2137.0     1.627    294.9
2147.0     1.630    293.8
2157.0     1.631    292.6
2167.0     1.630    291.5
2177.0     1.627    290.3
2187.0     1.622    289.1
2197.0     1.613    288.0
2207.0     1.602    286.8
2217.0     1.587    285.6
2227.0     1.567    284.3
2237.0     1.543    283.1
2247.0     1.512    281.8
2257.0     1.474    280.4
2267.0     1.426    278.9
2277.0     1.369    277.4
2287.0     1.297    275.6
2297.0     1.210    273.7
2307.0     1.101    271.4
2317.0     0.966    268.5
2327.0     0.800    264.6
2337.0     0.599    258.2
2347.0     0.374    244.6
2357.0     0.195    198.2
2367.0     0.295    131.5
2377.0     0.525    111.5
2387.0     0.753    103.7
2397.0     0.962     99.5
2407.0     1.150     96.8
2417.0     1.318     94.7
2427.0     1.470     93.2
2437.0     1.607     91.9
2447.0     1.732     90.8
2457.0     1.846     89.8
2467.0     1.950     89.0
2477.0     2.047     88.2
2487.0     2.135     87.5
2497.0     2.217     86.8
2507.0     2.294     86.2
2517.0     2.364     85.7
2527.0     2.430     85.1
2537.0     2.492     84.6
2547.0     2.550     84.2
2557.0     2.603     83.7
2567.0     2.654     83.2
2577.0     2.701     82.8
2587.0     2.745     82.4
2597.0     2.786     82.0
2607.0     2.825     81.6
2617.0     2.862     81.2
2627.0     2.896     80.9
2637.0     2.927     80.5
2647.0     2.957     80.1
2657.0     2.985     79.8
2667.0     3.011     79.5
2677.0     3.036     79.1
2687.0     3.058     78.8
2697.0     3.079     78.5
2707.0     3.099     78.1
2717.0     3.117     77.8
2727.0     3.134     77.5
2737.0     3.149     77.2
2747.0     3.163     76.9
2757.0     3.176     76.6
2767.0     3.188     76.3
2777.0     3.199     76.0
2787.0     3.208     75.7
2797.0     3.217     75.4
2807.0     3.224     75.1
2817.0     3.231     74.8
2827.0     3.236     74.5
2837.0     3.241     74.2
2847.0     3.245     73.9
2857.0     3.248     73.6
2867.0     3.250     73.3
2877.0     3.252     73.0
2887.0     3.252     72.8
2897.0     3.252     72.5
2907.0     3.251     72.2
2917.0     3.249     71.9
2927.0     3.247     71.6
2937.0     3.244     71.3
2947.0     3.241     71.0
2957.0     3.236     70.7
2967.0     3.232     70.4
2977.0     3.226     70.1
2987.0     3.220     69.8
2997.0     3.214     69.5
3007.0     3.207     69.2
3017.0     3.199     68.9
3027.0     3.191     68.6
3037.0     3.182     68.3
3047.0     3.173     68.0
3057.0     3.163     67.7
3067.0     3.153     67.4
3077.0     3.143     67.1
3087.0     3.132     66.8
3097.0     3.120     66.5
3107.0     3.108     66.2
3117.0     3.096     65.9
3127.0     3.083     65.5
3137.0     3.070     65.2
3147.0     3.057     64.9
3157.0     3.043     64.6
3167.0     3.029     64.2
3177.0     3.014     63.9
3187.0     2.999     63.5






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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