Double Star Calculator - Orbit

Orbital Elements for STF1374AB
WDS: STF1374AB WDS ID/Discoverer
P: 1815.612 Orbital period (years)
a: 10.43453 Semi-major axis (arcseconds)
i: 79.718 Inclination (degrees)
Ω: 75.058 Longitude of ascending node (degrees)
T: 1709.621 Epoch of periastron passage (year)
e: 0.85356 Eccentricity
ω: 106.457 Longitude of periastron (degrees)
Start-Year: 1117.1938 Year
End-Year: 2932.8062 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1374AB
Position: 094121.88+385701.9 Epoch-2000 right ascension and declination
WDS-ID: 09414+3857 WDS designation
Discoverer Code: STF1374AB Discover designation and components
ADS number: 7477 Aitken Double Star catalog
HD number: 83698 HD catalog number
Hipparcos number: 47527 Hipparcos catalog number
V1: 7.28 Magnitude of the primary
V2: 8.65 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF1374AB



WDS 6th Orbit including measures of STF1374AB

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STF1374AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.771   313.76
--------------------------
1117.19    8.414    55.35
1127.19    8.454    55.64
1137.19    8.493    55.92
1147.19    8.529    56.19
1157.19    8.564    56.47
1167.19    8.597    56.74
1177.19    8.627    57.01
1187.19    8.655    57.28
1197.19    8.681    57.55
1207.19    8.705    57.81
1217.19    8.726    58.08
1227.19    8.745    58.34
1237.19    8.762    58.60
1247.19    8.775    58.86
1257.19    8.787    59.12
1267.19    8.795    59.38
1277.19    8.800    59.64
1287.19    8.803    59.90
1297.19    8.802    60.16
1307.19    8.799    60.42
1317.19    8.792    60.68
1327.19    8.781    60.94
1337.19    8.767    61.20
1347.19    8.749    61.46
1357.19    8.728    61.73
1367.19    8.702    61.99
1377.19    8.672    62.26
1387.19    8.638    62.52
1397.19    8.599    62.79
1407.19    8.555    63.07
1417.19    8.506    63.34
1427.19    8.452    63.62
1437.19    8.392    63.91
1447.19    8.326    64.19
1457.19    8.254    64.48
1467.19    8.175    64.78
1477.19    8.089    65.09
1487.19    7.995    65.40
1497.19    7.893    65.71
1507.19    7.782    66.04
1517.19    7.662    66.38
1527.19    7.532    66.73
1537.19    7.390    67.09
1547.19    7.236    67.46
1557.19    7.069    67.85
1567.19    6.887    68.27
1577.19    6.688    68.70
1587.19    6.471    69.17
1597.19    6.233    69.66
1607.19    5.971    70.20
1617.19    5.681    70.79
1627.19    5.358    71.45
1637.19    4.996    72.20
1647.19    4.585    73.08
1657.19    4.114    74.14
1667.19    3.565    75.50
1677.19    2.910    77.42
1687.19    2.110    80.66
1697.19    1.120    88.98
1707.19    0.304   190.43
1717.19    1.304   246.81
1727.19    2.109   253.87
1737.19    2.629   257.44
1747.19    2.971   259.99
1757.19    3.200   262.09
1767.19    3.357   263.95
1777.19    3.462   265.67
1787.19    3.531   267.31
1797.19    3.573   268.90
1807.19    3.594   270.46
1817.19    3.598   272.02
1827.19    3.590   273.57
1837.19    3.571   275.13
1847.19    3.544   276.72
1857.19    3.511   278.33
1867.19    3.472   279.98
1877.19    3.429   281.67
1887.19    3.383   283.40
1897.19    3.335   285.18
1907.19    3.286   287.01
1917.19    3.235   288.90
1927.19    3.184   290.84
1937.19    3.134   292.86
1947.19    3.085   294.93
1957.19    3.036   297.08
1967.19    2.990   299.29
1977.19    2.945   301.57
1987.19    2.904   303.92
1997.19    2.865   306.33
2007.19    2.829   308.81
2017.19    2.797   311.35
2027.19    2.769   313.94
2037.19    2.745   316.58
2047.19    2.726   319.26
2057.19    2.711   321.98
2067.19    2.701   324.72
2077.19    2.696   327.48
2087.19    2.696   330.24
2097.19    2.702   333.00
2107.19    2.712   335.74
2117.19    2.727   338.46
2127.19    2.747   341.14
2137.19    2.773   343.77
2147.19    2.803   346.36
2157.19    2.837   348.88
2167.19    2.876   351.34
2177.19    2.919   353.74
2187.19    2.966   356.06
2197.19    3.017   358.30
2207.19    3.072     0.47
2217.19    3.129     2.55
2227.19    3.190     4.57
2237.19    3.254     6.50
2247.19    3.320     8.36
2257.19    3.389    10.14
2267.19    3.461    11.85
2277.19    3.534    13.50
2287.19    3.609    15.07
2297.19    3.686    16.58
2307.19    3.764    18.03
2317.19    3.844    19.41
2327.19    3.925    20.75
2337.19    4.007    22.02
2347.19    4.090    23.25
2357.19    4.174    24.42
2367.19    4.259    25.55
2377.19    4.344    26.64
2387.19    4.430    27.68
2397.19    4.516    28.68
2407.19    4.603    29.65
2417.19    4.690    30.58
2427.19    4.778    31.48
2437.19    4.865    32.34
2447.19    4.953    33.17
2457.19    5.040    33.98
2467.19    5.128    34.75
2477.19    5.215    35.51
2487.19    5.302    36.23
2497.19    5.389    36.93
2507.19    5.476    37.61
2517.19    5.562    38.27
2527.19    5.648    38.91
2537.19    5.734    39.53
2547.19    5.819    40.13
2557.19    5.904    40.72
2567.19    5.988    41.29
2577.19    6.072    41.84
2587.19    6.155    42.38
2597.19    6.237    42.90
2607.19    6.319    43.41
2617.19    6.400    43.90
2627.19    6.480    44.39
2637.19    6.560    44.86
2647.19    6.639    45.32
2657.19    6.716    45.77
2667.19    6.793    46.21
2677.19    6.870    46.64
2687.19    6.945    47.06
2697.19    7.019    47.47
2707.19    7.092    47.88
2717.19    7.165    48.27
2727.19    7.236    48.66
2737.19    7.306    49.04
2747.19    7.375    49.41
2757.19    7.443    49.78
2767.19    7.510    50.14
2777.19    7.575    50.49
2787.19    7.639    50.84
2797.19    7.702    51.18
2807.19    7.764    51.51
2817.19    7.825    51.84
2827.19    7.884    52.17
2837.19    7.941    52.49
2847.19    7.997    52.81
2857.19    8.052    53.12
2867.19    8.105    53.43
2877.19    8.157    53.73
2887.19    8.207    54.03
2897.19    8.255    54.33
2907.19    8.302    54.62
2917.19    8.347    54.91
2927.19    8.390    55.20






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:20:20



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