Double Star Calculator - Orbit

Orbital Elements for STF2323AB
WDS: STF2323AB WDS ID/Discoverer
P: 2455.604 Orbital period (years)
a: 6.35553 Semi-major axis (arcseconds)
i: 104.723 Inclination (degrees)
Ω: 11.629 Longitude of ascending node (degrees)
T: 1687.223 Epoch of periastron passage (year)
e: 0.81391 Eccentricity
ω: 272.145 Longitude of periastron (degrees)
Start-Year: 797.1981499999999 Year
End-Year: 3252.80185 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2323AB
Position: 182354.65+584802.1 Epoch-2000 right ascension and declination
WDS-ID: 18239+5848 WDS designation
Discoverer Code: STF2323AB Discover designation and components
ADS number: 11336 Aitken Double Star catalog
HD number: 170073 HD catalog number
Hipparcos number: 90156 Hipparcos catalog number
V1: 5.06 Magnitude of the primary
V2: 8.07 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: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF2323AB



WDS 6th Orbit including measures of STF2323AB

-- 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 STF2323AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    3.770   347.85
--------------------------
797.20    3.455   243.70
807.20    3.475   242.97
817.20    3.495   242.25
827.20    3.515   241.54
837.20    3.535   240.83
847.20    3.555   240.14
857.20    3.575   239.45
867.20    3.595   238.77
877.20    3.615   238.10
887.20    3.635   237.43
897.20    3.655   236.77
907.20    3.675   236.12
917.20    3.695   235.48
927.20    3.715   234.84
937.20    3.734   234.21
947.20    3.754   233.59
957.20    3.773   232.97
967.20    3.793   232.36
977.20    3.812   231.75
987.20    3.831   231.16
997.20    3.849   230.56
1007.20    3.868   229.98
1017.20    3.886   229.39
1027.20    3.904   228.82
1037.20    3.921   228.25
1047.20    3.939   227.68
1057.20    3.955   227.12
1067.20    3.972   226.56
1077.20    3.988   226.01
1087.20    4.004   225.46
1097.20    4.019   224.92
1107.20    4.034   224.38
1117.20    4.048   223.84
1127.20    4.062   223.31
1137.20    4.075   222.78
1147.20    4.087   222.26
1157.20    4.099   221.74
1167.20    4.111   221.22
1177.20    4.121   220.70
1187.20    4.131   220.19
1197.20    4.140   219.68
1207.20    4.148   219.17
1217.20    4.156   218.66
1227.20    4.162   218.16
1237.20    4.168   217.65
1247.20    4.172   217.15
1257.20    4.176   216.65
1267.20    4.178   216.15
1277.20    4.180   215.65
1287.20    4.180   215.15
1297.20    4.178   214.64
1307.20    4.176   214.14
1317.20    4.172   213.64
1327.20    4.166   213.14
1337.20    4.159   212.63
1347.20    4.150   212.13
1357.20    4.140   211.62
1367.20    4.127   211.11
1377.20    4.113   210.59
1387.20    4.096   210.07
1397.20    4.077   209.55
1407.20    4.056   209.02
1417.20    4.032   208.49
1427.20    4.005   207.94
1437.20    3.976   207.40
1447.20    3.943   206.84
1457.20    3.907   206.27
1467.20    3.867   205.69
1477.20    3.822   205.10
1487.20    3.774   204.49
1497.20    3.721   203.87
1507.20    3.662   203.23
1517.20    3.598   202.57
1527.20    3.527   201.88
1537.20    3.449   201.16
1547.20    3.363   200.41
1557.20    3.268   199.61
1567.20    3.163   198.76
1577.20    3.046   197.86
1587.20    2.915   196.87
1597.20    2.769   195.79
1607.20    2.604   194.58
1617.20    2.417   193.19
1627.20    2.203   191.55
1637.20    1.957   189.53
1647.20    1.671   186.87
1657.20    1.338   182.98
1667.20    0.955   176.19
1677.20    0.542   159.28
1687.20    0.303    93.48
1697.20    0.609    39.11
1707.20    1.018    25.05
1717.20    1.388    18.91
1727.20    1.703    15.23
1737.20    1.970    12.63
1747.20    2.197    10.62
1757.20    2.392     8.96
1767.20    2.560     7.53
1777.20    2.706     6.27
1787.20    2.834     5.13
1797.20    2.947     4.09
1807.20    3.047     3.11
1817.20    3.136     2.20
1827.20    3.215     1.33
1837.20    3.285     0.51
1847.20    3.348   359.71
1857.20    3.404   358.94
1867.20    3.455   358.20
1877.20    3.500   357.48
1887.20    3.540   356.77
1897.20    3.576   356.08
1907.20    3.607   355.40
1917.20    3.635   354.74
1927.20    3.660   354.08
1937.20    3.682   353.43
1947.20    3.700   352.79
1957.20    3.717   352.15
1967.20    3.730   351.52
1977.20    3.742   350.90
1987.20    3.751   350.27
1997.20    3.759   349.65
2007.20    3.764   349.04
2017.20    3.768   348.42
2027.20    3.770   347.80
2037.20    3.771   347.19
2047.20    3.771   346.57
2057.20    3.769   345.96
2067.20    3.766   345.34
2077.20    3.761   344.72
2087.20    3.756   344.11
2097.20    3.750   343.49
2107.20    3.743   342.86
2117.20    3.734   342.24
2127.20    3.726   341.61
2137.20    3.716   340.98
2147.20    3.705   340.34
2157.20    3.694   339.70
2167.20    3.683   339.06
2177.20    3.670   338.41
2187.20    3.658   337.76
2197.20    3.644   337.11
2207.20    3.631   336.45
2217.20    3.616   335.78
2227.20    3.602   335.11
2237.20    3.587   334.43
2247.20    3.571   333.75
2257.20    3.556   333.06
2267.20    3.540   332.37
2277.20    3.524   331.66
2287.20    3.508   330.96
2297.20    3.491   330.24
2307.20    3.475   329.52
2317.20    3.458   328.80
2327.20    3.441   328.06
2337.20    3.424   327.32
2347.20    3.408   326.57
2357.20    3.391   325.81
2367.20    3.374   325.05
2377.20    3.357   324.28
2387.20    3.340   323.50
2397.20    3.323   322.71
2407.20    3.306   321.91
2417.20    3.290   321.11
2427.20    3.273   320.30
2437.20    3.257   319.48
2447.20    3.241   318.65
2457.20    3.225   317.81
2467.20    3.209   316.97
2477.20    3.194   316.11
2487.20    3.179   315.25
2497.20    3.164   314.38
2507.20    3.149   313.51
2517.20    3.135   312.62
2527.20    3.121   311.73
2537.20    3.107   310.82
2547.20    3.094   309.91
2557.20    3.081   309.00
2567.20    3.068   308.07
2577.20    3.056   307.14
2587.20    3.044   306.20
2597.20    3.033   305.25
2607.20    3.022   304.30
2617.20    3.012   303.34
2627.20    3.002   302.37
2637.20    2.993   301.40
2647.20    2.984   300.42
2657.20    2.975   299.43
2667.20    2.967   298.44
2677.20    2.960   297.45
2687.20    2.953   296.45
2697.20    2.947   295.44
2707.20    2.941   294.43
2717.20    2.936   293.42
2727.20    2.932   292.40
2737.20    2.928   291.39
2747.20    2.925   290.37
2757.20    2.922   289.34
2767.20    2.920   288.32
2777.20    2.918   287.29
2787.20    2.917   286.26
2797.20    2.917   285.24
2807.20    2.917   284.21
2817.20    2.918   283.18
2827.20    2.920   282.16
2837.20    2.922   281.13
2847.20    2.925   280.11
2857.20    2.928   279.09
2867.20    2.932   278.07
2877.20    2.937   277.05
2887.20    2.942   276.04
2897.20    2.948   275.03
2907.20    2.954   274.03
2917.20    2.961   273.03
2927.20    2.969   272.03
2937.20    2.977   271.04
2947.20    2.985   270.06
2957.20    2.994   269.08
2967.20    3.004   268.11
2977.20    3.014   267.14
2987.20    3.025   266.19
2997.20    3.036   265.23
3007.20    3.048   264.29
3017.20    3.060   263.35
3027.20    3.073   262.42
3037.20    3.086   261.50
3047.20    3.100   260.59
3057.20    3.114   259.68
3067.20    3.128   258.78
3077.20    3.143   257.89
3087.20    3.159   257.01
3097.20    3.174   256.14
3107.20    3.190   255.28
3117.20    3.207   254.42
3127.20    3.223   253.58
3137.20    3.240   252.74
3147.20    3.258   251.91
3157.20    3.275   251.09
3167.20    3.293   250.28
3177.20    3.311   249.48
3187.20    3.330   248.69
3197.20    3.348   247.90
3207.20    3.367   247.13
3217.20    3.386   246.36
3227.20    3.405   245.60
3237.20    3.425   244.85
3247.20    3.444   244.11






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 17:51:30



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