Double Star Calculator - Orbit

Orbital Elements for STF711AB
WDS: STF711AB WDS ID/Discoverer
P: 2614.478 Orbital period (years)
a: 17.36056 Semi-major axis (arcseconds)
i: 99.876 Inclination (degrees)
Ω: 72.472 Longitude of ascending node (degrees)
T: 1483.629 Epoch of periastron passage (year)
e: 0.7374 Eccentricity
ω: 101.865 Longitude of periastron (degrees)
Start-Year: 717.7611999999999 Year
End-Year: 3332.2388 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF711AB
Position: 053128.89+543915.8 Epoch-2000 right ascension and declination
WDS-ID: 05315+5439 WDS designation
Discoverer Code: STF711AB Discover designation and components
ADS number: 4099 Aitken Double Star catalog
HD number: 35961 HD catalog number
Hipparcos number: 25880 Hipparcos catalog number
V1: 7.78 Magnitude of the primary
V2: 9.67 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF711AB



WDS 6th Orbit including measures of STF711AB

-- 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 STF711AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    7.447   222.77
--------------------------
717.76   13.819    88.98
727.76   13.892    88.73
737.76   13.964    88.48
747.76   14.034    88.23
757.76   14.101    87.99
767.76   14.166    87.75
777.76   14.229    87.51
787.76   14.289    87.27
797.76   14.348    87.04
807.76   14.403    86.81
817.76   14.456    86.58
827.76   14.507    86.35
837.76   14.555    86.12
847.76   14.600    85.89
857.76   14.642    85.67
867.76   14.681    85.44
877.76   14.718    85.22
887.76   14.751    85.00
897.76   14.781    84.78
907.76   14.808    84.56
917.76   14.831    84.34
927.76   14.851    84.12
937.76   14.867    83.91
947.76   14.880    83.69
957.76   14.888    83.47
967.76   14.893    83.25
977.76   14.894    83.04
987.76   14.890    82.82
997.76   14.882    82.60
1007.76   14.870    82.39
1017.76   14.853    82.17
1027.76   14.831    81.95
1037.76   14.803    81.73
1047.76   14.771    81.51
1057.76   14.733    81.29
1067.76   14.690    81.07
1077.76   14.640    80.85
1087.76   14.585    80.62
1097.76   14.523    80.39
1107.76   14.454    80.16
1117.76   14.379    79.93
1127.76   14.296    79.70
1137.76   14.206    79.46
1147.76   14.107    79.22
1157.76   14.000    78.98
1167.76   13.885    78.73
1177.76   13.760    78.48
1187.76   13.625    78.22
1197.76   13.480    77.96
1207.76   13.324    77.69
1217.76   13.156    77.42
1227.76   12.976    77.14
1237.76   12.783    76.85
1247.76   12.577    76.55
1257.76   12.355    76.24
1267.76   12.118    75.92
1277.76   11.863    75.58
1287.76   11.591    75.24
1297.76   11.299    74.87
1307.76   10.985    74.48
1317.76   10.648    74.07
1327.76   10.286    73.63
1337.76    9.897    73.16
1347.76    9.478    72.65
1357.76    9.026    72.09
1367.76    8.538    71.46
1377.76    8.010    70.76
1387.76    7.439    69.95
1397.76    6.819    69.01
1407.76    6.147    67.86
1417.76    5.418    66.42
1427.76    4.630    64.51
1437.76    3.781    61.77
1447.76    2.879    57.36
1457.76    1.949    48.80
1467.76    1.089    25.61
1477.76    0.845   320.43
1487.76    1.559   281.12
1497.76    2.474   268.62
1507.76    3.371   262.88
1517.76    4.199   259.49
1527.76    4.943   257.18
1537.76    5.603   255.45
1547.76    6.182   254.07
1557.76    6.688   252.90
1567.76    7.129   251.90
1577.76    7.512   251.00
1587.76    7.845   250.19
1597.76    8.135   249.43
1607.76    8.385   248.73
1617.76    8.601   248.06
1627.76    8.787   247.43
1637.76    8.947   246.82
1647.76    9.082   246.22
1657.76    9.196   245.65
1667.76    9.290   245.09
1677.76    9.368   244.53
1687.76    9.429   243.99
1697.76    9.476   243.45
1707.76    9.511   242.92
1717.76    9.533   242.39
1727.76    9.545   241.86
1737.76    9.546   241.33
1747.76    9.539   240.80
1757.76    9.523   240.28
1767.76    9.499   239.74
1777.76    9.468   239.21
1787.76    9.431   238.67
1797.76    9.387   238.13
1807.76    9.338   237.58
1817.76    9.283   237.03
1827.76    9.224   236.46
1837.76    9.160   235.89
1847.76    9.092   235.32
1857.76    9.020   234.73
1867.76    8.944   234.14
1877.76    8.866   233.53
1887.76    8.784   232.91
1897.76    8.699   232.28
1907.76    8.612   231.64
1917.76    8.522   230.99
1927.76    8.430   230.32
1937.76    8.336   229.63
1947.76    8.241   228.93
1957.76    8.144   228.22
1967.76    8.045   227.48
1977.76    7.946   226.73
1987.76    7.845   225.96
1997.76    7.743   225.17
2007.76    7.641   224.36
2017.76    7.538   223.52
2027.76    7.434   222.66
2037.76    7.331   221.78
2047.76    7.227   220.87
2057.76    7.123   219.94
2067.76    7.019   218.98
2077.76    6.916   217.99
2087.76    6.814   216.97
2097.76    6.712   215.92
2107.76    6.611   214.83
2117.76    6.511   213.71
2127.76    6.412   212.56
2137.76    6.314   211.37
2147.76    6.218   210.15
2157.76    6.124   208.89
2167.76    6.031   207.59
2177.76    5.941   206.24
2187.76    5.853   204.86
2197.76    5.767   203.44
2207.76    5.684   201.97
2217.76    5.604   200.46
2227.76    5.527   198.91
2237.76    5.453   197.31
2247.76    5.382   195.67
2257.76    5.315   193.99
2267.76    5.252   192.27
2277.76    5.193   190.51
2287.76    5.139   188.71
2297.76    5.088   186.87
2307.76    5.042   184.99
2317.76    5.001   183.09
2327.76    4.965   181.15
2337.76    4.934   179.19
2347.76    4.908   177.20
2357.76    4.887   175.20
2367.76    4.872   173.18
2377.76    4.862   171.15
2387.76    4.857   169.11
2397.76    4.858   167.07
2407.76    4.865   165.04
2417.76    4.876   163.01
2427.76    4.894   160.99
2437.76    4.916   159.00
2447.76    4.944   157.02
2457.76    4.978   155.06
2467.76    5.016   153.14
2477.76    5.059   151.24
2487.76    5.107   149.38
2497.76    5.160   147.56
2507.76    5.217   145.77
2517.76    5.278   144.02
2527.76    5.344   142.32
2537.76    5.414   140.66
2547.76    5.487   139.04
2557.76    5.564   137.46
2567.76    5.644   135.93
2577.76    5.728   134.45
2587.76    5.815   133.00
2597.76    5.905   131.60
2607.76    5.997   130.24
2617.76    6.092   128.93
2627.76    6.189   127.65
2637.76    6.289   126.42
2647.76    6.391   125.22
2657.76    6.495   124.06
2667.76    6.600   122.94
2677.76    6.708   121.86
2687.76    6.817   120.80
2697.76    6.927   119.79
2707.76    7.039   118.80
2717.76    7.152   117.84
2727.76    7.266   116.92
2737.76    7.381   116.02
2747.76    7.497   115.15
2757.76    7.614   114.31
2767.76    7.731   113.49
2777.76    7.850   112.70
2787.76    7.969   111.93
2797.76    8.088   111.19
2807.76    8.208   110.46
2817.76    8.328   109.76
2827.76    8.449   109.08
2837.76    8.570   108.41
2847.76    8.690   107.77
2857.76    8.812   107.14
2867.76    8.933   106.53
2877.76    9.054   105.93
2887.76    9.175   105.36
2897.76    9.296   104.79
2907.76    9.417   104.24
2917.76    9.537   103.71
2927.76    9.657   103.18
2937.76    9.777   102.68
2947.76    9.897   102.18
2957.76   10.016   101.69
2967.76   10.135   101.22
2977.76   10.254   100.76
2987.76   10.371   100.31
2997.76   10.489    99.86
3007.76   10.605    99.43
3017.76   10.721    99.01
3027.76   10.837    98.59
3037.76   10.951    98.19
3047.76   11.065    97.79
3057.76   11.178    97.40
3067.76   11.290    97.02
3077.76   11.401    96.65
3087.76   11.512    96.28
3097.76   11.621    95.92
3107.76   11.730    95.57
3117.76   11.837    95.22
3127.76   11.943    94.88
3137.76   12.049    94.55
3147.76   12.153    94.22
3157.76   12.256    93.90
3167.76   12.357    93.58
3177.76   12.458    93.27
3187.76   12.557    92.96
3197.76   12.655    92.66
3207.76   12.751    92.36
3217.76   12.846    92.07
3227.76   12.940    91.78
3237.76   13.032    91.49
3247.76   13.122    91.21
3257.76   13.211    90.94
3267.76   13.298    90.66
3277.76   13.384    90.39
3287.76   13.468    90.13
3297.76   13.550    89.86
3307.76   13.630    89.60
3317.76   13.709    89.34
3327.76   13.785    89.09






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 15:38:01



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