Double Star Calculator - Orbit

Orbital Elements for STT263
WDS: STT263 WDS ID/Discoverer
P: 2112.581 Orbital period (years)
a: 4.42057 Semi-major axis (arcseconds)
i: 85.036 Inclination (degrees)
Ω: 124.763 Longitude of ascending node (degrees)
T: 1706.902 Epoch of periastron passage (year)
e: 0.74348 Eccentricity
ω: 287.456 Longitude of periastron (degrees)
Start-Year: 968.7095999999999 Year
End-Year: 3081.2904 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT263
Position: 131637.18+503416.8 Epoch-2000 right ascension and declination
WDS-ID: 13166+5034 WDS designation
Discoverer Code: STT263 Discover designation and components
ADS number: 8843 Aitken Double Star catalog
HD number: 115477 HD catalog number
Hipparcos number: 64782 Hipparcos catalog number
V1: 9.53 Magnitude of the primary
V2: 9.74 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 STT263



WDS 6th Orbit including measures of STT263

-- 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 STT263
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.704   138.01
--------------------------
968.71    3.639   296.21
978.71    3.668   296.36
988.71    3.697   296.50
998.71    3.725   296.64
1008.71    3.752   296.78
1018.71    3.779   296.91
1028.71    3.805   297.05
1038.71    3.830   297.18
1048.71    3.854   297.31
1058.71    3.877   297.44
1068.71    3.899   297.56
1078.71    3.921   297.69
1088.71    3.941   297.82
1098.71    3.960   297.94
1108.71    3.979   298.06
1118.71    3.996   298.18
1128.71    4.013   298.30
1138.71    4.028   298.42
1148.71    4.043   298.54
1158.71    4.056   298.66
1168.71    4.068   298.77
1178.71    4.079   298.89
1188.71    4.088   299.01
1198.71    4.097   299.12
1208.71    4.104   299.24
1218.71    4.109   299.35
1228.71    4.114   299.46
1238.71    4.116   299.58
1248.71    4.118   299.69
1258.71    4.118   299.80
1268.71    4.116   299.92
1278.71    4.112   300.03
1288.71    4.107   300.15
1298.71    4.100   300.26
1308.71    4.092   300.38
1318.71    4.081   300.49
1328.71    4.069   300.61
1338.71    4.054   300.72
1348.71    4.037   300.84
1358.71    4.018   300.96
1368.71    3.996   301.08
1378.71    3.972   301.20
1388.71    3.946   301.32
1398.71    3.917   301.45
1408.71    3.885   301.58
1418.71    3.849   301.71
1428.71    3.811   301.84
1438.71    3.769   301.97
1448.71    3.724   302.11
1458.71    3.675   302.25
1468.71    3.622   302.39
1478.71    3.565   302.54
1488.71    3.503   302.70
1498.71    3.437   302.86
1508.71    3.365   303.02
1518.71    3.287   303.20
1528.71    3.204   303.38
1538.71    3.113   303.57
1548.71    3.016   303.78
1558.71    2.910   304.00
1568.71    2.796   304.23
1578.71    2.673   304.49
1588.71    2.538   304.78
1598.71    2.392   305.09
1608.71    2.233   305.45
1618.71    2.059   305.87
1628.71    1.868   306.37
1638.71    1.659   306.99
1648.71    1.428   307.80
1658.71    1.175   308.95
1668.71    0.898   310.77
1678.71    0.599   314.33
1688.71    0.285   325.61
1698.71    0.120    69.16
1708.71    0.409   111.79
1718.71    0.714   118.34
1728.71    0.988   121.05
1738.71    1.224   122.63
1748.71    1.421   123.74
1758.71    1.584   124.59
1768.71    1.716   125.30
1778.71    1.822   125.91
1788.71    1.908   126.47
1798.71    1.976   126.98
1808.71    2.029   127.46
1818.71    2.069   127.91
1828.71    2.099   128.36
1838.71    2.119   128.79
1848.71    2.132   129.22
1858.71    2.138   129.64
1868.71    2.138   130.06
1878.71    2.133   130.48
1888.71    2.122   130.91
1898.71    2.108   131.34
1908.71    2.090   131.78
1918.71    2.069   132.22
1928.71    2.045   132.68
1938.71    2.019   133.14
1948.71    1.989   133.62
1958.71    1.958   134.12
1968.71    1.925   134.63
1978.71    1.890   135.16
1988.71    1.854   135.71
1998.71    1.816   136.28
2008.71    1.776   136.88
2018.71    1.736   137.50
2028.71    1.695   138.16
2038.71    1.652   138.85
2048.71    1.609   139.57
2058.71    1.565   140.34
2068.71    1.521   141.15
2078.71    1.476   142.01
2088.71    1.430   142.92
2098.71    1.385   143.89
2108.71    1.339   144.93
2118.71    1.292   146.04
2128.71    1.246   147.24
2138.71    1.200   148.53
2148.71    1.154   149.92
2158.71    1.108   151.43
2168.71    1.063   153.06
2178.71    1.018   154.84
2188.71    0.974   156.78
2198.71    0.931   158.91
2208.71    0.889   161.24
2218.71    0.848   163.79
2228.71    0.809   166.60
2238.71    0.772   169.69
2248.71    0.737   173.08
2258.71    0.704   176.79
2268.71    0.675   180.85
2278.71    0.649   185.25
2288.71    0.627   190.00
2298.71    0.610   195.04
2308.71    0.597   200.35
2318.71    0.589   205.84
2328.71    0.587   211.41
2338.71    0.590   216.98
2348.71    0.599   222.44
2358.71    0.613   227.70
2368.71    0.631   232.69
2378.71    0.654   237.37
2388.71    0.681   241.70
2398.71    0.711   245.69
2408.71    0.744   249.33
2418.71    0.780   252.65
2428.71    0.818   255.68
2438.71    0.858   258.43
2448.71    0.899   260.93
2458.71    0.942   263.20
2468.71    0.986   265.28
2478.71    1.031   267.17
2488.71    1.077   268.91
2498.71    1.124   270.50
2508.71    1.171   271.97
2518.71    1.218   273.32
2528.71    1.266   274.57
2538.71    1.315   275.72
2548.71    1.363   276.80
2558.71    1.412   277.80
2568.71    1.461   278.73
2578.71    1.510   279.61
2588.71    1.559   280.43
2598.71    1.608   281.19
2608.71    1.658   281.92
2618.71    1.707   282.60
2628.71    1.756   283.24
2638.71    1.805   283.85
2648.71    1.853   284.43
2658.71    1.902   284.97
2668.71    1.951   285.49
2678.71    1.999   285.99
2688.71    2.047   286.46
2698.71    2.095   286.91
2708.71    2.143   287.34
2718.71    2.190   287.75
2728.71    2.237   288.14
2738.71    2.284   288.52
2748.71    2.331   288.88
2758.71    2.377   289.23
2768.71    2.423   289.56
2778.71    2.469   289.88
2788.71    2.514   290.19
2798.71    2.559   290.49
2808.71    2.604   290.78
2818.71    2.648   291.06
2828.71    2.692   291.33
2838.71    2.736   291.59
2848.71    2.779   291.85
2858.71    2.821   292.09
2868.71    2.864   292.33
2878.71    2.905   292.56
2888.71    2.947   292.79
2898.71    2.988   293.01
2908.71    3.028   293.22
2918.71    3.068   293.43
2928.71    3.107   293.63
2938.71    3.146   293.83
2948.71    3.185   294.02
2958.71    3.223   294.21
2968.71    3.260   294.39
2978.71    3.297   294.57
2988.71    3.333   294.74
2998.71    3.369   294.92
3008.71    3.404   295.08
3018.71    3.438   295.25
3028.71    3.472   295.41
3038.71    3.505   295.57
3048.71    3.537   295.72
3058.71    3.569   295.88
3068.71    3.600   296.03
3078.71    3.631   296.17






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 16:54:11



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