Double Star Calculator - Orbit

Orbital Elements for STF2596
WDS: STF2596 WDS ID/Discoverer
P: 2971.086 Orbital period (years)
a: 8.50966 Semi-major axis (arcseconds)
i: 102.104 Inclination (degrees)
Ω: 54.788 Longitude of ascending node (degrees)
T: 2354.196 Epoch of periastron passage (year)
e: 0.8412 Eccentricity
ω: 242.962 Longitude of periastron (degrees)
Start-Year: 539.45695 Year
End-Year: 3510.54305 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF2596
Position: 195401.95+151731.7 Epoch-2000 right ascension and declination
WDS-ID: 19540+1518 WDS designation
Discoverer Code: STF2596 Discover designation and components
ADS number: 13082 Aitken Double Star catalog
HD number: 188328 HD catalog number
Hipparcos number: 97922 Hipparcos catalog number
V1: 7.29 Magnitude of the primary
V2: 8.68 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 STF2596



WDS 6th Orbit including measures of STF2596

-- 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 STF2596
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.979   294.93
--------------------------
539.46    8.781    37.24
549.46    8.757    37.11
559.46    8.733    36.98
569.46    8.709    36.85
579.46    8.683    36.72
589.46    8.657    36.58
599.46    8.631    36.45
609.46    8.603    36.32
619.46    8.576    36.18
629.46    8.547    36.05
639.46    8.518    35.91
649.46    8.488    35.77
659.46    8.458    35.63
669.46    8.427    35.49
679.46    8.396    35.35
689.46    8.364    35.21
699.46    8.332    35.07
709.46    8.298    34.92
719.46    8.265    34.78
729.46    8.231    34.63
739.46    8.196    34.49
749.46    8.161    34.34
759.46    8.125    34.19
769.46    8.088    34.04
779.46    8.052    33.88
789.46    8.014    33.73
799.46    7.976    33.57
809.46    7.938    33.42
819.46    7.899    33.26
829.46    7.859    33.10
839.46    7.820    32.93
849.46    7.779    32.77
859.46    7.738    32.61
869.46    7.697    32.44
879.46    7.655    32.27
889.46    7.612    32.10
899.46    7.570    31.93
909.46    7.526    31.75
919.46    7.482    31.58
929.46    7.438    31.40
939.46    7.393    31.22
949.46    7.348    31.03
959.46    7.303    30.85
969.46    7.256    30.66
979.46    7.210    30.47
989.46    7.163    30.28
999.46    7.116    30.08
1009.46    7.068    29.88
1019.46    7.019    29.68
1029.46    6.971    29.48
1039.46    6.922    29.27
1049.46    6.872    29.06
1059.46    6.822    28.85
1069.46    6.772    28.64
1079.46    6.721    28.42
1089.46    6.670    28.20
1099.46    6.618    27.97
1109.46    6.566    27.74
1119.46    6.514    27.51
1129.46    6.461    27.27
1139.46    6.408    27.03
1149.46    6.354    26.79
1159.46    6.300    26.54
1169.46    6.246    26.29
1179.46    6.192    26.03
1189.46    6.137    25.77
1199.46    6.081    25.50
1209.46    6.026    25.23
1219.46    5.970    24.95
1229.46    5.913    24.67
1239.46    5.856    24.38
1249.46    5.799    24.09
1259.46    5.742    23.79
1269.46    5.684    23.49
1279.46    5.627    23.18
1289.46    5.568    22.86
1299.46    5.510    22.53
1309.46    5.451    22.20
1319.46    5.392    21.87
1329.46    5.332    21.52
1339.46    5.273    21.17
1349.46    5.213    20.80
1359.46    5.152    20.43
1369.46    5.092    20.05
1379.46    5.031    19.67
1389.46    4.970    19.27
1399.46    4.909    18.86
1409.46    4.848    18.44
1419.46    4.786    18.01
1429.46    4.725    17.57
1439.46    4.663    17.12
1449.46    4.601    16.66
1459.46    4.539    16.18
1469.46    4.476    15.69
1479.46    4.414    15.19
1489.46    4.351    14.67
1499.46    4.289    14.14
1509.46    4.226    13.59
1519.46    4.163    13.02
1529.46    4.100    12.44
1539.46    4.037    11.84
1549.46    3.974    11.22
1559.46    3.912    10.58
1569.46    3.849     9.92
1579.46    3.786     9.24
1589.46    3.724     8.53
1599.46    3.661     7.80
1609.46    3.599     7.04
1619.46    3.537     6.26
1629.46    3.475     5.45
1639.46    3.413     4.61
1649.46    3.352     3.74
1659.46    3.291     2.84
1669.46    3.230     1.91
1679.46    3.170     0.94
1689.46    3.110   359.93
1699.46    3.051   358.88
1709.46    2.992   357.79
1719.46    2.934   356.65
1729.46    2.877   355.48
1739.46    2.821   354.25
1749.46    2.765   352.97
1759.46    2.711   351.65
1769.46    2.657   350.27
1779.46    2.605   348.83
1789.46    2.553   347.33
1799.46    2.503   345.77
1809.46    2.455   344.16
1819.46    2.408   342.47
1829.46    2.363   340.72
1839.46    2.319   338.91
1849.46    2.278   337.02
1859.46    2.238   335.07
1869.46    2.201   333.05
1879.46    2.166   330.96
1889.46    2.133   328.81
1899.46    2.103   326.59
1909.46    2.075   324.31
1919.46    2.051   321.97
1929.46    2.029   319.58
1939.46    2.010   317.14
1949.46    1.994   314.66
1959.46    1.982   312.14
1969.46    1.972   309.59
1979.46    1.966   307.03
1989.46    1.963   304.45
1999.46    1.963   301.86
2009.46    1.966   299.29
2019.46    1.973   296.72
2029.46    1.982   294.18
2039.46    1.994   291.66
2049.46    2.009   289.17
2059.46    2.027   286.73
2069.46    2.047   284.33
2079.46    2.069   281.98
2089.46    2.093   279.69
2099.46    2.119   277.44
2109.46    2.147   275.26
2119.46    2.175   273.12
2129.46    2.205   271.05
2139.46    2.235   269.03
2149.46    2.265   267.06
2159.46    2.295   265.15
2169.46    2.324   263.29
2179.46    2.353   261.47
2189.46    2.379   259.69
2199.46    2.404   257.95
2209.46    2.425   256.24
2219.46    2.442   254.57
2229.46    2.454   252.91
2239.46    2.460   251.26
2249.46    2.458   249.62
2259.46    2.446   247.96
2269.46    2.421   246.28
2279.46    2.379   244.56
2289.46    2.316   242.76
2299.46    2.225   240.83
2309.46    2.096   238.71
2319.46    1.916   236.24
2329.46    1.666   233.15
2339.46    1.327   228.70
2349.46    0.892   220.40
2359.46    0.424   193.62
2369.46    0.403   104.51
2379.46    0.878    75.49
2389.46    1.369    67.25
2399.46    1.824    63.29
2409.46    2.237    60.86
2419.46    2.613    59.16
2429.46    2.957    57.87
2439.46    3.273    56.85
2449.46    3.566    55.99
2459.46    3.838    55.27
2469.46    4.091    54.64
2479.46    4.329    54.07
2489.46    4.552    53.57
2499.46    4.762    53.11
2509.46    4.961    52.69
2519.46    5.150    52.30
2529.46    5.329    51.94
2539.46    5.499    51.60
2549.46    5.661    51.28
2559.46    5.815    50.98
2569.46    5.963    50.69
2579.46    6.104    50.42
2589.46    6.239    50.16
2599.46    6.368    49.90
2609.46    6.492    49.66
2619.46    6.611    49.43
2629.46    6.725    49.21
2639.46    6.835    48.99
2649.46    6.940    48.78
2659.46    7.041    48.58
2669.46    7.139    48.38
2679.46    7.232    48.19
2689.46    7.323    48.00
2699.46    7.409    47.82
2709.46    7.493    47.64
2719.46    7.574    47.46
2729.46    7.651    47.29
2739.46    7.726    47.12
2749.46    7.798    46.96
2759.46    7.867    46.80
2769.46    7.933    46.64
2779.46    7.998    46.48
2789.46    8.059    46.32
2799.46    8.119    46.17
2809.46    8.176    46.02
2819.46    8.231    45.88
2829.46    8.284    45.73
2839.46    8.335    45.59
2849.46    8.384    45.44
2859.46    8.431    45.30
2869.46    8.476    45.16
2879.46    8.519    45.03
2889.46    8.560    44.89
2899.46    8.600    44.75
2909.46    8.638    44.62
2919.46    8.674    44.49
2929.46    8.709    44.36
2939.46    8.742    44.22
2949.46    8.774    44.09
2959.46    8.804    43.97
2969.46    8.833    43.84
2979.46    8.860    43.71
2989.46    8.886    43.58
2999.46    8.910    43.46
3009.46    8.933    43.33
3019.46    8.955    43.21
3029.46    8.975    43.09
3039.46    8.994    42.96
3049.46    9.012    42.84
3059.46    9.029    42.72
3069.46    9.045    42.60
3079.46    9.059    42.47
3089.46    9.072    42.35
3099.46    9.084    42.23
3109.46    9.095    42.11
3119.46    9.105    41.99
3129.46    9.114    41.87
3139.46    9.121    41.75
3149.46    9.128    41.63
3159.46    9.134    41.51
3169.46    9.138    41.39
3179.46    9.142    41.28
3189.46    9.144    41.16
3199.46    9.146    41.04
3209.46    9.147    40.92
3219.46    9.147    40.80
3229.46    9.145    40.68
3239.46    9.143    40.56
3249.46    9.140    40.44
3259.46    9.137    40.32
3269.46    9.132    40.20
3279.46    9.126    40.08
3289.46    9.120    39.97
3299.46    9.113    39.85
3309.46    9.105    39.73
3319.46    9.096    39.61
3329.46    9.086    39.49
3339.46    9.075    39.36
3349.46    9.064    39.24
3359.46    9.052    39.12
3369.46    9.039    39.00
3379.46    9.026    38.88
3389.46    9.011    38.76
3399.46    8.996    38.63
3409.46    8.980    38.51
3419.46    8.964    38.39
3429.46    8.947    38.26
3439.46    8.929    38.14
3449.46    8.910    38.01
3459.46    8.890    37.89
3469.46    8.870    37.76
3479.46    8.850    37.64
3489.46    8.828    37.51
3499.46    8.806    37.38
3509.46    8.783    37.25






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 18:09:52



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