Double Star Calculator - Orbit

Orbital Elements for STF296AB
WDS: STF296AB WDS ID/Discoverer
P: 2720.000 Orbital period (years)
a: 22.289 Semi-major axis (arcseconds)
i: 75.44 Inclination (degrees)
Ω: 128.0 Longitude of ascending node (degrees)
T: 1613.000 Epoch of periastron passage (year)
e: 0.13 Eccentricity
ω: 100.64 Longitude of periastron (degrees)
Start-Year: 665.0 Year
End-Year: 3385.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF296AB
Position: 024411.99+491342.4 Epoch-2000 right ascension and declination
WDS-ID: 02442+4914 WDS designation
Discoverer Code: STF296AB Discover designation and components
ADS number: 2081 Aitken Double Star catalog
HD number: 16895 HD catalog number
Hipparcos number: 12777 Hipparcos catalog number
V1: 4.16 Magnitude of the primary
V2: 10. Magnitude of the secondary
Equinox: 2000 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: KSC2017 Reference

Double Star Orbit for STF296AB



WDS 6th Orbit including measures of STF296AB

-- 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 STF296AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   20.514   305.11
--------------------------
665.00   19.931   117.71
675.00   20.143   118.11
685.00   20.348   118.51
695.00   20.545   118.91
705.00   20.734   119.29
715.00   20.915   119.67
725.00   21.088   120.04
735.00   21.253   120.41
745.00   21.409   120.77
755.00   21.557   121.12
765.00   21.696   121.47
775.00   21.826   121.82
785.00   21.947   122.16
795.00   22.059   122.50
805.00   22.162   122.83
815.00   22.256   123.17
825.00   22.340   123.50
835.00   22.414   123.82
845.00   22.478   124.15
855.00   22.533   124.47
865.00   22.578   124.79
875.00   22.612   125.11
885.00   22.636   125.43
895.00   22.650   125.75
905.00   22.654   126.07
915.00   22.647   126.39
925.00   22.629   126.71
935.00   22.601   127.03
945.00   22.562   127.35
955.00   22.512   127.68
965.00   22.451   128.00
975.00   22.379   128.33
985.00   22.296   128.66
995.00   22.202   128.99
1005.00   22.097   129.32
1015.00   21.980   129.66
1025.00   21.852   130.00
1035.00   21.713   130.35
1045.00   21.563   130.70
1055.00   21.402   131.05
1065.00   21.229   131.41
1075.00   21.045   131.78
1085.00   20.849   132.15
1095.00   20.643   132.53
1105.00   20.425   132.92
1115.00   20.196   133.32
1125.00   19.956   133.73
1135.00   19.705   134.14
1145.00   19.443   134.57
1155.00   19.170   135.01
1165.00   18.886   135.46
1175.00   18.592   135.93
1185.00   18.287   136.41
1195.00   17.972   136.91
1205.00   17.646   137.43
1215.00   17.311   137.96
1225.00   16.966   138.52
1235.00   16.611   139.10
1245.00   16.247   139.71
1255.00   15.874   140.34
1265.00   15.492   141.01
1275.00   15.102   141.71
1285.00   14.703   142.45
1295.00   14.297   143.23
1305.00   13.884   144.05
1315.00   13.464   144.93
1325.00   13.038   145.87
1335.00   12.606   146.86
1345.00   12.169   147.93
1355.00   11.728   149.08
1365.00   11.283   150.32
1375.00   10.835   151.66
1385.00   10.386   153.11
1395.00    9.937   154.70
1405.00    9.488   156.44
1415.00    9.041   158.35
1425.00    8.599   160.46
1435.00    8.163   162.80
1445.00    7.736   165.39
1455.00    7.321   168.29
1465.00    6.921   171.52
1475.00    6.540   175.14
1485.00    6.183   179.20
1495.00    5.856   183.73
1505.00    5.566   188.76
1515.00    5.318   194.31
1525.00    5.120   200.34
1535.00    4.980   206.78
1545.00    4.901   213.51
1555.00    4.887   220.37
1565.00    4.940   227.17
1575.00    5.056   233.75
1585.00    5.231   239.96
1595.00    5.460   245.70
1605.00    5.734   250.95
1615.00    6.046   255.68
1625.00    6.391   259.92
1635.00    6.763   263.72
1645.00    7.155   267.10
1655.00    7.564   270.13
1665.00    7.985   272.85
1675.00    8.417   275.29
1685.00    8.855   277.49
1695.00    9.298   279.48
1705.00    9.744   281.29
1715.00   10.191   282.94
1725.00   10.637   284.45
1735.00   11.082   285.84
1745.00   11.524   287.12
1755.00   11.963   288.31
1765.00   12.396   289.42
1775.00   12.825   290.45
1785.00   13.247   291.41
1795.00   13.663   292.32
1805.00   14.071   293.17
1815.00   14.471   293.97
1825.00   14.863   294.74
1835.00   15.247   295.46
1845.00   15.621   296.15
1855.00   15.985   296.80
1865.00   16.340   297.43
1875.00   16.684   298.03
1885.00   17.018   298.61
1895.00   17.342   299.16
1905.00   17.654   299.70
1915.00   17.955   300.22
1925.00   18.245   300.72
1935.00   18.523   301.20
1945.00   18.790   301.67
1955.00   19.045   302.13
1965.00   19.288   302.58
1975.00   19.519   303.01
1985.00   19.737   303.44
1995.00   19.944   303.85
2005.00   20.138   304.26
2015.00   20.320   304.66
2025.00   20.490   305.06
2035.00   20.647   305.44
2045.00   20.792   305.82
2055.00   20.924   306.20
2065.00   21.045   306.57
2075.00   21.153   306.94
2085.00   21.249   307.31
2095.00   21.332   307.67
2105.00   21.404   308.03
2115.00   21.463   308.38
2125.00   21.511   308.74
2135.00   21.546   309.09
2145.00   21.570   309.44
2155.00   21.582   309.80
2165.00   21.582   310.15
2175.00   21.571   310.50
2185.00   21.549   310.85
2195.00   21.515   311.21
2205.00   21.470   311.56
2215.00   21.415   311.92
2225.00   21.348   312.28
2235.00   21.271   312.64
2245.00   21.183   313.00
2255.00   21.085   313.37
2265.00   20.977   313.74
2275.00   20.858   314.11
2285.00   20.730   314.49
2295.00   20.592   314.88
2305.00   20.445   315.27
2315.00   20.288   315.66
2325.00   20.122   316.06
2335.00   19.948   316.47
2345.00   19.764   316.89
2355.00   19.572   317.31
2365.00   19.372   317.74
2375.00   19.163   318.18
2385.00   18.947   318.63
2395.00   18.723   319.10
2405.00   18.491   319.57
2415.00   18.252   320.06
2425.00   18.006   320.55
2435.00   17.753   321.07
2445.00   17.494   321.59
2455.00   17.228   322.14
2465.00   16.956   322.70
2475.00   16.679   323.28
2485.00   16.396   323.88
2495.00   16.107   324.50
2505.00   15.814   325.14
2515.00   15.515   325.81
2525.00   15.212   326.50
2535.00   14.905   327.23
2545.00   14.595   327.98
2555.00   14.280   328.77
2565.00   13.963   329.59
2575.00   13.642   330.45
2585.00   13.320   331.35
2595.00   12.995   332.30
2605.00   12.669   333.29
2615.00   12.341   334.34
2625.00   12.013   335.45
2635.00   11.685   336.62
2645.00   11.357   337.85
2655.00   11.030   339.16
2665.00   10.705   340.55
2675.00   10.383   342.02
2685.00   10.063   343.59
2695.00    9.748   345.26
2705.00    9.438   347.04
2715.00    9.134   348.94
2725.00    8.837   350.97
2735.00    8.548   353.14
2745.00    8.270   355.46
2755.00    8.002   357.94
2765.00    7.748     0.59
2775.00    7.508     3.40
2785.00    7.285     6.40
2795.00    7.080     9.58
2805.00    6.895    12.94
2815.00    6.733    16.47
2825.00    6.595    20.17
2835.00    6.483    24.00
2845.00    6.399    27.96
2855.00    6.343    32.00
2865.00    6.317    36.09
2875.00    6.322    40.20
2885.00    6.356    44.28
2895.00    6.419    48.30
2905.00    6.512    52.22
2915.00    6.631    56.02
2925.00    6.776    59.67
2935.00    6.945    63.16
2945.00    7.135    66.47
2955.00    7.346    69.60
2965.00    7.574    72.54
2975.00    7.819    75.31
2985.00    8.077    77.91
2995.00    8.349    80.34
3005.00    8.631    82.61
3015.00    8.923    84.74
3025.00    9.223    86.73
3035.00    9.530    88.60
3045.00    9.843    90.35
3055.00   10.160    91.98
3065.00   10.482    93.52
3075.00   10.808    94.97
3085.00   11.135    96.33
3095.00   11.464    97.62
3105.00   11.795    98.83
3115.00   12.126    99.97
3125.00   12.457   101.06
3135.00   12.788   102.09
3145.00   13.118   103.07
3155.00   13.446   103.99
3165.00   13.773   104.88
3175.00   14.098   105.72
3185.00   14.420   106.53
3195.00   14.739   107.30
3205.00   15.055   108.04
3215.00   15.368   108.75
3225.00   15.678   109.43
3235.00   15.983   110.08
3245.00   16.284   110.71
3255.00   16.581   111.32
3265.00   16.873   111.90
3275.00   17.160   112.47
3285.00   17.442   113.02
3295.00   17.718   113.55
3305.00   17.989   114.06
3315.00   18.254   114.56
3325.00   18.513   115.05
3335.00   18.766   115.52
3345.00   19.013   115.98
3355.00   19.253   116.43
3365.00   19.486   116.86
3375.00   19.712   117.29






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 15:04:00



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