Double Star Calculator - Orbit

Orbital Elements for STF1169AB
WDS: STF1169AB WDS ID/Discoverer
P: 20000.000 Orbital period (years)
a: 15.0 Semi-major axis (arcseconds)
i: 3.0 Inclination (degrees)
Ω: 15.0 Longitude of ascending node (degrees)
T: 8800.000 Epoch of periastron passage (year)
e: 0.48 Eccentricity
ω: 157.0 Longitude of periastron (degrees)
Start-Year: -7975.0 Year
End-Year: 12025.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1169AB
Position: 081631.05+793003.5 Epoch-2000 right ascension and declination
WDS-ID: 08165+7930 WDS designation
Discoverer Code: STF1169AB Discover designation and components
ADS number: 6646 Aitken Double Star catalog
HD number: 67064 HD catalog number
Hipparcos number: 40527 Hipparcos catalog number
V1: 8.40 Magnitude of the primary
V2: 8.64 Magnitude of the secondary
Equinox: Equinox
Date: 2003 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: Kis2009 Reference

Double Star Orbit for STF1169AB



WDS 6th Orbit including measures of STF1169AB

-- 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 STF1169AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   20.492    16.53
--------------------------
-7975.00   14.411   286.63
-7875.00   14.644   288.31
-7775.00   14.873   289.94
-7675.00   15.099   291.52
-7575.00   15.321   293.06
-7475.00   15.540   294.55
-7375.00   15.756   296.00
-7275.00   15.968   297.41
-7175.00   16.176   298.78
-7075.00   16.381   300.12
-6975.00   16.582   301.42
-6875.00   16.779   302.70
-6775.00   16.973   303.95
-6675.00   17.163   305.16
-6575.00   17.349   306.36
-6475.00   17.532   307.52
-6375.00   17.711   308.66
-6275.00   17.887   309.78
-6175.00   18.058   310.88
-6075.00   18.226   311.96
-5975.00   18.391   313.02
-5875.00   18.551   314.06
-5775.00   18.708   315.08
-5675.00   18.862   316.09
-5575.00   19.012   317.08
-5475.00   19.158   318.05
-5375.00   19.300   319.01
-5275.00   19.439   319.96
-5175.00   19.575   320.89
-5075.00   19.707   321.81
-4975.00   19.835   322.72
-4875.00   19.960   323.61
-4775.00   20.081   324.50
-4675.00   20.199   325.37
-4575.00   20.313   326.24
-4475.00   20.424   327.09
-4375.00   20.531   327.94
-4275.00   20.635   328.77
-4175.00   20.736   329.60
-4075.00   20.833   330.43
-3975.00   20.926   331.24
-3875.00   21.017   332.05
-3775.00   21.103   332.85
-3675.00   21.187   333.64
-3575.00   21.267   334.43
-3475.00   21.344   335.21
-3375.00   21.417   335.98
-3275.00   21.487   336.76
-3175.00   21.554   337.52
-3075.00   21.617   338.28
-2975.00   21.677   339.04
-2875.00   21.734   339.79
-2775.00   21.787   340.54
-2675.00   21.837   341.29
-2575.00   21.884   342.03
-2475.00   21.927   342.77
-2375.00   21.967   343.51
-2275.00   22.004   344.24
-2175.00   22.038   344.97
-2075.00   22.068   345.70
-1975.00   22.096   346.43
-1875.00   22.119   347.16
-1775.00   22.140   347.88
-1675.00   22.157   348.60
-1575.00   22.171   349.33
-1475.00   22.182   350.05
-1375.00   22.190   350.77
-1275.00   22.194   351.49
-1175.00   22.195   352.21
-1075.00   22.193   352.93
-975.00   22.188   353.65
-875.00   22.179   354.37
-775.00   22.167   355.09
-675.00   22.152   355.81
-575.00   22.134   356.54
-475.00   22.112   357.26
-375.00   22.087   357.99
-275.00   22.059   358.72
-175.00   22.027   359.45
-75.00   21.992     0.18
25.00   21.954     0.91
125.00   21.913     1.65
225.00   21.868     2.39
325.00   21.821     3.14
425.00   21.769     3.88
525.00   21.715     4.63
625.00   21.657     5.39
725.00   21.596     6.15
825.00   21.531     6.91
925.00   21.463     7.68
1025.00   21.392     8.45
1125.00   21.318     9.23
1225.00   21.240    10.01
1325.00   21.158    10.80
1425.00   21.074    11.60
1525.00   20.985    12.40
1625.00   20.894    13.21
1725.00   20.799    14.03
1825.00   20.701    14.85
1925.00   20.599    15.68
2025.00   20.493    16.52
2125.00   20.385    17.37
2225.00   20.272    18.23
2325.00   20.157    19.10
2425.00   20.037    19.98
2525.00   19.915    20.87
2625.00   19.788    21.77
2725.00   19.658    22.68
2825.00   19.525    23.60
2925.00   19.388    24.54
3025.00   19.247    25.49
3125.00   19.103    26.46
3225.00   18.955    27.44
3325.00   18.803    28.43
3425.00   18.648    29.44
3525.00   18.489    30.47
3625.00   18.327    31.52
3725.00   18.160    32.58
3825.00   17.990    33.67
3925.00   17.817    34.78
4025.00   17.640    35.91
4125.00   17.458    37.06
4225.00   17.274    38.23
4325.00   17.085    39.44
4425.00   16.893    40.67
4525.00   16.697    41.92
4625.00   16.498    43.21
4725.00   16.294    44.53
4825.00   16.087    45.89
4925.00   15.877    47.27
5025.00   15.663    48.70
5125.00   15.445    50.17
5225.00   15.223    51.68
5325.00   14.999    53.23
5425.00   14.770    54.83
5525.00   14.539    56.48
5625.00   14.304    58.19
5725.00   14.066    59.95
5825.00   13.825    61.78
5925.00   13.581    63.67
6025.00   13.335    65.63
6125.00   13.086    67.66
6225.00   12.834    69.77
6325.00   12.581    71.97
6425.00   12.326    74.26
6525.00   12.069    76.64
6625.00   11.812    79.13
6725.00   11.554    81.73
6825.00   11.296    84.45
6925.00   11.038    87.30
7025.00   10.782    90.28
7125.00   10.528    93.40
7225.00   10.277    96.68
7325.00   10.030   100.12
7425.00    9.788   103.74
7525.00    9.552   107.53
7625.00    9.324   111.52
7725.00    9.105   115.70
7825.00    8.897   120.08
7925.00    8.701   124.66
8025.00    8.520   129.45
8125.00    8.355   134.44
8225.00    8.208   139.62
8325.00    8.081   144.97
8425.00    7.976   150.47
8525.00    7.894   156.11
8625.00    7.837   161.85
8725.00    7.805   167.65
8825.00    7.799   173.49
8925.00    7.820   179.31
9025.00    7.866   185.08
9125.00    7.937   190.77
9225.00    8.031   196.33
9325.00    8.149   201.76
9425.00    8.286   207.02
9525.00    8.443   212.09
9625.00    8.617   216.97
9725.00    8.806   221.64
9825.00    9.008   226.12
9925.00    9.221   230.39
10025.00    9.445   234.47
10125.00    9.676   238.35
10225.00    9.915   242.05
10325.00   10.159   245.57
10425.00   10.407   248.93
10525.00   10.659   252.13
10625.00   10.913   255.18
10725.00   11.169   258.09
10825.00   11.425   260.87
10925.00   11.682   263.53
11025.00   11.939   266.07
11125.00   12.195   268.51
11225.00   12.450   270.84
11325.00   12.703   273.09
11425.00   12.954   275.24
11525.00   13.204   277.32
11625.00   13.451   279.31
11725.00   13.695   281.24
11825.00   13.937   283.10
11925.00   14.175   284.90






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 16:06:13



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