Double Star Calculator - Orbit

Orbital Elements for STF1547AB
WDS: STF1547AB WDS ID/Discoverer
P: 3453.000 Orbital period (years)
a: 16.25 Semi-major axis (arcseconds)
i: 58.0 Inclination (degrees)
Ω: 138.0 Longitude of ascending node (degrees)
T: 1228.000 Epoch of periastron passage (year)
e: 0.2 Eccentricity
ω: 100.0 Longitude of periastron (degrees)
Start-Year: 298.5 Year
End-Year: 3751.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1547AB
Position: 113144.94+142152.2 Epoch-2000 right ascension and declination
WDS-ID: 11317+1422 WDS designation
Discoverer Code: STF1547AB Discover designation and components
ADS number: 8196 Aitken Double Star catalog
HD number: 100180 HD catalog number
Hipparcos number: 56242 Hipparcos catalog number
V1: 6.33 Magnitude of the primary
V2: 9.14 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 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: Hrt2013b Reference

Double Star Orbit for STF1547AB



WDS 6th Orbit including measures of STF1547AB

-- 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 STF1547AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   15.324   332.54
--------------------------
298.50   16.610   127.96
308.50   16.618   128.48
318.50   16.624   128.99
328.50   16.626   129.51
338.50   16.624   130.03
348.50   16.619   130.55
358.50   16.611   131.06
368.50   16.599   131.58
378.50   16.584   132.10
388.50   16.565   132.62
398.50   16.542   133.14
408.50   16.515   133.67
418.50   16.485   134.19
428.50   16.452   134.72
438.50   16.414   135.25
448.50   16.372   135.78
458.50   16.327   136.31
468.50   16.278   136.85
478.50   16.225   137.39
488.50   16.168   137.94
498.50   16.107   138.49
508.50   16.042   139.04
518.50   15.973   139.60
528.50   15.900   140.16
538.50   15.823   140.73
548.50   15.742   141.30
558.50   15.657   141.88
568.50   15.568   142.47
578.50   15.474   143.06
588.50   15.377   143.66
598.50   15.275   144.27
608.50   15.170   144.89
618.50   15.060   145.51
628.50   14.947   146.15
638.50   14.829   146.79
648.50   14.707   147.45
658.50   14.581   148.12
668.50   14.452   148.79
678.50   14.318   149.49
688.50   14.181   150.19
698.50   14.040   150.91
708.50   13.895   151.64
718.50   13.746   152.39
728.50   13.593   153.15
738.50   13.438   153.94
748.50   13.278   154.74
758.50   13.115   155.56
768.50   12.949   156.40
778.50   12.780   157.26
788.50   12.608   158.15
798.50   12.433   159.06
808.50   12.255   160.00
818.50   12.074   160.97
828.50   11.892   161.96
838.50   11.706   162.99
848.50   11.519   164.05
858.50   11.330   165.14
868.50   11.140   166.28
878.50   10.948   167.45
888.50   10.755   168.66
898.50   10.562   169.92
908.50   10.368   171.23
918.50   10.174   172.58
928.50    9.981   173.99
938.50    9.788   175.45
948.50    9.596   176.97
958.50    9.406   178.56
968.50    9.219   180.21
978.50    9.033   181.92
988.50    8.852   183.71
998.50    8.673   185.57
1008.50    8.500   187.51
1018.50    8.331   189.53
1028.50    8.168   191.63
1038.50    8.012   193.81
1048.50    7.863   196.08
1058.50    7.722   198.44
1068.50    7.590   200.88
1078.50    7.467   203.40
1088.50    7.355   206.00
1098.50    7.254   208.68
1108.50    7.164   211.43
1118.50    7.087   214.25
1128.50    7.023   217.12
1138.50    6.973   220.04
1148.50    6.936   223.00
1158.50    6.913   225.98
1168.50    6.905   228.98
1178.50    6.912   231.97
1188.50    6.933   234.96
1198.50    6.968   237.92
1208.50    7.016   240.84
1218.50    7.079   243.72
1228.50    7.154   246.54
1238.50    7.242   249.30
1248.50    7.341   251.99
1258.50    7.451   254.61
1268.50    7.572   257.14
1278.50    7.702   259.59
1288.50    7.841   261.96
1298.50    7.987   264.24
1308.50    8.141   266.44
1318.50    8.301   268.56
1328.50    8.467   270.59
1338.50    8.637   272.55
1348.50    8.812   274.42
1358.50    8.990   276.23
1368.50    9.172   277.96
1378.50    9.355   279.63
1388.50    9.540   281.23
1398.50    9.727   282.77
1408.50    9.915   284.25
1418.50   10.102   285.68
1428.50   10.290   287.05
1438.50   10.478   288.38
1448.50   10.664   289.66
1458.50   10.849   290.89
1468.50   11.033   292.09
1478.50   11.215   293.24
1488.50   11.395   294.36
1498.50   11.573   295.45
1508.50   11.748   296.50
1518.50   11.920   297.52
1528.50   12.090   298.51
1538.50   12.256   299.47
1548.50   12.419   300.41
1558.50   12.578   301.33
1568.50   12.734   302.22
1578.50   12.886   303.09
1588.50   13.034   303.94
1598.50   13.178   304.78
1608.50   13.319   305.59
1618.50   13.455   306.39
1628.50   13.587   307.17
1638.50   13.714   307.94
1648.50   13.837   308.69
1658.50   13.956   309.43
1668.50   14.071   310.16
1678.50   14.181   310.87
1688.50   14.286   311.58
1698.50   14.387   312.27
1708.50   14.484   312.96
1718.50   14.576   313.64
1728.50   14.663   314.31
1738.50   14.746   314.97
1748.50   14.824   315.62
1758.50   14.898   316.27
1768.50   14.967   316.91
1778.50   15.032   317.54
1788.50   15.093   318.17
1798.50   15.149   318.80
1808.50   15.200   319.42
1818.50   15.248   320.04
1828.50   15.291   320.65
1838.50   15.329   321.26
1848.50   15.364   321.87
1858.50   15.394   322.47
1868.50   15.420   323.07
1878.50   15.442   323.67
1888.50   15.460   324.27
1898.50   15.473   324.87
1908.50   15.483   325.47
1918.50   15.489   326.06
1928.50   15.492   326.66
1938.50   15.490   327.25
1948.50   15.485   327.85
1958.50   15.476   328.45
1968.50   15.464   329.04
1978.50   15.448   329.64
1988.50   15.428   330.24
1998.50   15.405   330.84
2008.50   15.379   331.45
2018.50   15.350   332.05
2028.50   15.318   332.66
2038.50   15.282   333.27
2048.50   15.243   333.88
2058.50   15.202   334.50
2068.50   15.157   335.12
2078.50   15.110   335.75
2088.50   15.060   336.37
2098.50   15.008   337.01
2108.50   14.953   337.64
2118.50   14.895   338.28
2128.50   14.835   338.93
2138.50   14.773   339.58
2148.50   14.708   340.24
2158.50   14.642   340.91
2168.50   14.573   341.58
2178.50   14.502   342.25
2188.50   14.430   342.93
2198.50   14.355   343.62
2208.50   14.279   344.32
2218.50   14.201   345.03
2228.50   14.122   345.74
2238.50   14.041   346.46
2248.50   13.959   347.19
2258.50   13.875   347.93
2268.50   13.791   348.67
2278.50   13.705   349.43
2288.50   13.618   350.20
2298.50   13.530   350.97
2308.50   13.442   351.76
2318.50   13.353   352.56
2328.50   13.263   353.36
2338.50   13.172   354.18
2348.50   13.081   355.01
2358.50   12.990   355.85
2368.50   12.899   356.70
2378.50   12.808   357.57
2388.50   12.716   358.45
2398.50   12.625   359.34
2408.50   12.534     0.24
2418.50   12.443     1.16
2428.50   12.352     2.09
2438.50   12.262     3.03
2448.50   12.173     3.99
2458.50   12.084     4.96
2468.50   11.997     5.95
2478.50   11.910     6.95
2488.50   11.824     7.96
2498.50   11.740     8.99
2508.50   11.657    10.04
2518.50   11.575    11.10
2528.50   11.495    12.17
2538.50   11.416    13.26
2548.50   11.340    14.36
2558.50   11.265    15.48
2568.50   11.192    16.62
2578.50   11.121    17.76
2588.50   11.053    18.93
2598.50   10.986    20.11
2608.50   10.923    21.30
2618.50   10.861    22.50
2628.50   10.803    23.72
2638.50   10.747    24.95
2648.50   10.694    26.19
2658.50   10.643    27.45
2668.50   10.596    28.72
2678.50   10.552    30.00
2688.50   10.511    31.29
2698.50   10.474    32.58
2708.50   10.440    33.89
2718.50   10.409    35.21
2728.50   10.381    36.53
2738.50   10.357    37.86
2748.50   10.337    39.19
2758.50   10.320    40.53
2768.50   10.307    41.88
2778.50   10.298    43.22
2788.50   10.292    44.57
2798.50   10.290    45.92
2808.50   10.292    47.27
2818.50   10.297    48.62
2828.50   10.306    49.97
2838.50   10.319    51.31
2848.50   10.336    52.65
2858.50   10.356    53.99
2868.50   10.380    55.32
2878.50   10.407    56.64
2888.50   10.438    57.96
2898.50   10.472    59.27
2908.50   10.510    60.56
2918.50   10.551    61.85
2928.50   10.595    63.13
2938.50   10.643    64.40
2948.50   10.693    65.66
2958.50   10.747    66.90
2968.50   10.803    68.13
2978.50   10.863    69.35
2988.50   10.925    70.55
2998.50   10.990    71.74
3008.50   11.058    72.92
3018.50   11.128    74.08
3028.50   11.200    75.23
3038.50   11.275    76.36
3048.50   11.352    77.48
3058.50   11.431    78.58
3068.50   11.511    79.67
3078.50   11.594    80.74
3088.50   11.679    81.79
3098.50   11.765    82.83
3108.50   11.853    83.86
3118.50   11.942    84.87
3128.50   12.032    85.86
3138.50   12.124    86.84
3148.50   12.217    87.81
3158.50   12.310    88.76
3168.50   12.405    89.70
3178.50   12.501    90.62
3188.50   12.597    91.52
3198.50   12.694    92.42
3208.50   12.791    93.30
3218.50   12.889    94.17
3228.50   12.987    95.02
3238.50   13.086    95.86
3248.50   13.184    96.69
3258.50   13.283    97.51
3268.50   13.382    98.31
3278.50   13.480    99.10
3288.50   13.578    99.88
3298.50   13.676   100.65
3308.50   13.774   101.41
3318.50   13.871   102.16
3328.50   13.968   102.90
3338.50   14.064   103.63
3348.50   14.159   104.34
3358.50   14.254   105.05
3368.50   14.347   105.75
3378.50   14.440   106.44
3388.50   14.532   107.12
3398.50   14.623   107.79
3408.50   14.712   108.46
3418.50   14.801   109.11
3428.50   14.888   109.76
3438.50   14.973   110.40
3448.50   15.058   111.04
3458.50   15.140   111.67
3468.50   15.221   112.29
3478.50   15.301   112.90
3488.50   15.379   113.51
3498.50   15.455   114.11
3508.50   15.529   114.70
3518.50   15.602   115.29
3528.50   15.672   115.88
3538.50   15.740   116.46
3548.50   15.807   117.03
3558.50   15.871   117.60
3568.50   15.933   118.17
3578.50   15.992   118.73
3588.50   16.050   119.29
3598.50   16.105   119.84
3608.50   16.157   120.39
3618.50   16.207   120.93
3628.50   16.255   121.48
3638.50   16.300   122.02
3648.50   16.342   122.55
3658.50   16.382   123.09
3668.50   16.419   123.62
3678.50   16.452   124.15
3688.50   16.484   124.67
3698.50   16.512   125.20
3708.50   16.537   125.72
3718.50   16.559   126.24
3728.50   16.578   126.77
3738.50   16.594   127.28
3748.50   16.607   127.80






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 16:39:09



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