Double Star Calculator - Orbit

Orbital Elements for STF1386AB
WDS: STF1386AB WDS ID/Discoverer
P: 2301.589 Orbital period (years)
a: 4.61934 Semi-major axis (arcseconds)
i: 92.517 Inclination (degrees)
Ω: 108.314 Longitude of ascending node (degrees)
T: 2178.527 Epoch of periastron passage (year)
e: 0.79276 Eccentricity
ω: 76.941 Longitude of periastron (degrees)
Start-Year: 874.2057 Year
End-Year: 3175.7943 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF1386AB
Position: 095504.02+685406.1 Epoch-2000 right ascension and declination
WDS-ID: 09551+6854 WDS designation
Discoverer Code: STF1386AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.30 Magnitude of the primary
V2: 9.34 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: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF1386AB



WDS 6th Orbit including measures of STF1386AB

-- 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 STF1386AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.101   110.99
--------------------------
874.21    2.504   280.46
884.21    2.467   280.31
894.21    2.430   280.16
904.21    2.392   280.01
914.21    2.354   279.85
924.21    2.316   279.69
934.21    2.277   279.52
944.21    2.238   279.34
954.21    2.199   279.16
964.21    2.160   278.97
974.21    2.120   278.78
984.21    2.081   278.57
994.21    2.041   278.36
1004.21    2.000   278.14
1014.21    1.960   277.92
1024.21    1.919   277.68
1034.21    1.878   277.43
1044.21    1.837   277.17
1054.21    1.795   276.90
1064.21    1.754   276.62
1074.21    1.712   276.32
1084.21    1.670   276.01
1094.21    1.628   275.68
1104.21    1.586   275.33
1114.21    1.543   274.97
1124.21    1.501   274.58
1134.21    1.458   274.17
1144.21    1.415   273.74
1154.21    1.372   273.28
1164.21    1.329   272.79
1174.21    1.286   272.27
1184.21    1.243   271.71
1194.21    1.200   271.11
1204.21    1.157   270.47
1214.21    1.114   269.77
1224.21    1.071   269.03
1234.21    1.028   268.21
1244.21    0.985   267.33
1254.21    0.942   266.37
1264.21    0.899   265.31
1274.21    0.856   264.15
1284.21    0.814   262.87
1294.21    0.772   261.45
1304.21    0.731   259.87
1314.21    0.690   258.09
1324.21    0.649   256.10
1334.21    0.610   253.84
1344.21    0.571   251.28
1354.21    0.534   248.35
1364.21    0.498   244.99
1374.21    0.464   241.12
1384.21    0.433   236.67
1394.21    0.404   231.56
1404.21    0.379   225.71
1414.21    0.359   219.13
1424.21    0.343   211.85
1434.21    0.334   204.02
1444.21    0.331   195.90
1454.21    0.334   187.79
1464.21    0.344   180.02
1474.21    0.360   172.80
1484.21    0.381   166.29
1494.21    0.407   160.52
1504.21    0.436   155.48
1514.21    0.468   151.09
1524.21    0.502   147.28
1534.21    0.538   143.96
1544.21    0.575   141.07
1554.21    0.613   138.54
1564.21    0.653   136.30
1574.21    0.693   134.33
1584.21    0.734   132.57
1594.21    0.775   131.00
1604.21    0.817   129.59
1614.21    0.859   128.32
1624.21    0.901   127.16
1634.21    0.943   126.11
1644.21    0.985   125.15
1654.21    1.027   124.27
1664.21    1.069   123.45
1674.21    1.111   122.70
1684.21    1.153   122.00
1694.21    1.195   121.35
1704.21    1.236   120.75
1714.21    1.278   120.18
1724.21    1.319   119.65
1734.21    1.359   119.16
1744.21    1.400   118.69
1754.21    1.439   118.24
1764.21    1.479   117.82
1774.21    1.518   117.43
1784.21    1.556   117.05
1794.21    1.594   116.69
1804.21    1.631   116.34
1814.21    1.667   116.01
1824.21    1.703   115.70
1834.21    1.738   115.40
1844.21    1.772   115.11
1854.21    1.805   114.83
1864.21    1.837   114.56
1874.21    1.868   114.30
1884.21    1.898   114.05
1894.21    1.926   113.80
1904.21    1.953   113.57
1914.21    1.979   113.33
1924.21    2.002   113.11
1934.21    2.024   112.89
1944.21    2.045   112.67
1954.21    2.062   112.46
1964.21    2.078   112.25
1974.21    2.091   112.05
1984.21    2.100   111.84
1994.21    2.107   111.64
2004.21    2.110   111.44
2014.21    2.109   111.24
2024.21    2.103   111.04
2034.21    2.093   110.84
2044.21    2.076   110.63
2054.21    2.052   110.42
2064.21    2.021   110.21
2074.21    1.981   109.98
2084.21    1.929   109.75
2094.21    1.865   109.50
2104.21    1.785   109.23
2114.21    1.686   108.94
2124.21    1.563   108.60
2134.21    1.410   108.19
2144.21    1.221   107.68
2154.21    0.987   106.94
2164.21    0.703   105.67
2174.21    0.372   102.30
2184.21    0.043    30.46
2194.21    0.356   295.18
2204.21    0.694   291.60
2214.21    1.000   290.32
2224.21    1.272   289.62
2234.21    1.512   289.16
2244.21    1.724   288.82
2254.21    1.914   288.55
2264.21    2.083   288.32
2274.21    2.236   288.13
2284.21    2.374   287.96
2294.21    2.499   287.81
2304.21    2.613   287.68
2314.21    2.717   287.55
2324.21    2.813   287.43
2334.21    2.901   287.32
2344.21    2.982   287.22
2354.21    3.056   287.12
2364.21    3.124   287.03
2374.21    3.188   286.94
2384.21    3.246   286.85
2394.21    3.300   286.77
2404.21    3.350   286.69
2414.21    3.395   286.61
2424.21    3.438   286.53
2434.21    3.476   286.46
2444.21    3.512   286.39
2454.21    3.545   286.31
2464.21    3.575   286.24
2474.21    3.602   286.18
2484.21    3.626   286.11
2494.21    3.649   286.04
2504.21    3.669   285.97
2514.21    3.687   285.91
2524.21    3.703   285.84
2534.21    3.717   285.78
2544.21    3.729   285.71
2554.21    3.739   285.65
2564.21    3.748   285.58
2574.21    3.755   285.52
2584.21    3.760   285.46
2594.21    3.764   285.39
2604.21    3.766   285.33
2614.21    3.767   285.27
2624.21    3.767   285.20
2634.21    3.766   285.14
2644.21    3.763   285.08
2654.21    3.759   285.02
2664.21    3.754   284.95
2674.21    3.748   284.89
2684.21    3.740   284.83
2694.21    3.732   284.76
2704.21    3.722   284.70
2714.21    3.712   284.63
2724.21    3.701   284.57
2734.21    3.688   284.50
2744.21    3.675   284.44
2754.21    3.661   284.37
2764.21    3.646   284.30
2774.21    3.631   284.23
2784.21    3.614   284.17
2794.21    3.597   284.10
2804.21    3.579   284.03
2814.21    3.560   283.96
2824.21    3.540   283.89
2834.21    3.520   283.82
2844.21    3.499   283.74
2854.21    3.478   283.67
2864.21    3.455   283.60
2874.21    3.432   283.52
2884.21    3.409   283.44
2894.21    3.385   283.37
2904.21    3.360   283.29
2914.21    3.335   283.21
2924.21    3.309   283.13
2934.21    3.283   283.05
2944.21    3.256   282.96
2954.21    3.228   282.88
2964.21    3.200   282.79
2974.21    3.172   282.70
2984.21    3.143   282.61
2994.21    3.113   282.52
3004.21    3.083   282.43
3014.21    3.053   282.33
3024.21    3.022   282.24
3034.21    2.990   282.14
3044.21    2.959   282.04
3054.21    2.926   281.93
3064.21    2.894   281.83
3074.21    2.861   281.72
3084.21    2.827   281.61
3094.21    2.794   281.50
3104.21    2.759   281.38
3114.21    2.725   281.26
3124.21    2.690   281.14
3134.21    2.655   281.01
3144.21    2.619   280.89
3154.21    2.583   280.75
3164.21    2.547   280.62
3174.21    2.510   280.48






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 16:22:16



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