Double Star Calculator - Orbit

Orbital Elements for STT430
WDS: STT430 WDS ID/Discoverer
P: 2504.000 Orbital period (years)
a: 4.094 Semi-major axis (arcseconds)
i: 100.9 Inclination (degrees)
Ω: 113.3 Longitude of ascending node (degrees)
T: 3132.400 Epoch of periastron passage (year)
e: 0.806 Eccentricity
ω: 88.5 Longitude of periastron (degrees)
Start-Year: 773.0 Year
End-Year: 3277.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT430
Position: 211159.52+241005.3 Epoch-2000 right ascension and declination
WDS-ID: 21120+2410 WDS designation
Discoverer Code: STT430 Discover designation and components
ADS number: 14738 Aitken Double Star catalog
HD number: 201889 HD catalog number
Hipparcos number: 104660 Hipparcos catalog number
V1: 8.27 Magnitude of the primary
V2: 10.24 Magnitude of the secondary
Equinox: Equinox
Date: 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: PkO2018b Reference

Double Star Orbit for STT430



WDS 6th Orbit including measures of STT430

-- 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 STT430
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.416   191.13
--------------------------
773.00    2.173   286.92
783.00    2.225   286.36
793.00    2.271   285.83
803.00    2.313   285.31
813.00    2.350   284.82
823.00    2.384   284.34
833.00    2.415   283.87
843.00    2.442   283.41
853.00    2.467   282.96
863.00    2.488   282.52
873.00    2.508   282.09
883.00    2.525   281.67
893.00    2.540   281.25
903.00    2.553   280.83
913.00    2.565   280.42
923.00    2.574   280.01
933.00    2.582   279.60
943.00    2.589   279.20
953.00    2.594   278.80
963.00    2.598   278.40
973.00    2.600   278.00
983.00    2.601   277.60
993.00    2.602   277.20
1003.00    2.601   276.80
1013.00    2.599   276.40
1023.00    2.596   276.00
1033.00    2.592   275.60
1043.00    2.588   275.20
1053.00    2.583   274.80
1063.00    2.576   274.39
1073.00    2.569   273.99
1083.00    2.562   273.58
1093.00    2.554   273.16
1103.00    2.545   272.75
1113.00    2.535   272.33
1123.00    2.525   271.91
1133.00    2.514   271.48
1143.00    2.503   271.06
1153.00    2.492   270.62
1163.00    2.479   270.19
1173.00    2.467   269.75
1183.00    2.454   269.30
1193.00    2.440   268.85
1203.00    2.426   268.39
1213.00    2.412   267.93
1223.00    2.398   267.47
1233.00    2.383   267.00
1243.00    2.368   266.52
1253.00    2.352   266.03
1263.00    2.336   265.54
1273.00    2.320   265.04
1283.00    2.304   264.54
1293.00    2.287   264.03
1303.00    2.270   263.51
1313.00    2.253   262.98
1323.00    2.236   262.45
1333.00    2.219   261.90
1343.00    2.201   261.35
1353.00    2.184   260.79
1363.00    2.166   260.22
1373.00    2.148   259.64
1383.00    2.130   259.05
1393.00    2.112   258.45
1403.00    2.094   257.84
1413.00    2.075   257.22
1423.00    2.057   256.59
1433.00    2.039   255.95
1443.00    2.020   255.29
1453.00    2.002   254.62
1463.00    1.983   253.94
1473.00    1.965   253.25
1483.00    1.947   252.55
1493.00    1.928   251.83
1503.00    1.910   251.10
1513.00    1.892   250.35
1523.00    1.874   249.59
1533.00    1.856   248.81
1543.00    1.838   248.02
1553.00    1.820   247.22
1563.00    1.802   246.39
1573.00    1.785   245.56
1583.00    1.768   244.70
1593.00    1.751   243.83
1603.00    1.734   242.94
1613.00    1.717   242.03
1623.00    1.701   241.11
1633.00    1.684   240.17
1643.00    1.668   239.21
1653.00    1.653   238.23
1663.00    1.637   237.23
1673.00    1.622   236.22
1683.00    1.608   235.19
1693.00    1.593   234.13
1703.00    1.579   233.06
1713.00    1.566   231.97
1723.00    1.553   230.86
1733.00    1.540   229.73
1743.00    1.528   228.59
1753.00    1.516   227.42
1763.00    1.504   226.24
1773.00    1.493   225.04
1783.00    1.483   223.82
1793.00    1.473   222.58
1803.00    1.464   221.33
1813.00    1.455   220.07
1823.00    1.447   218.79
1833.00    1.439   217.49
1843.00    1.432   216.18
1853.00    1.426   214.86
1863.00    1.420   213.53
1873.00    1.414   212.18
1883.00    1.410   210.83
1893.00    1.406   209.47
1903.00    1.403   208.10
1913.00    1.400   206.73
1923.00    1.398   205.35
1933.00    1.397   203.97
1943.00    1.396   202.59
1953.00    1.396   201.20
1963.00    1.397   199.82
1973.00    1.398   198.44
1983.00    1.400   197.06
1993.00    1.402   195.68
2003.00    1.406   194.31
2013.00    1.410   192.95
2023.00    1.414   191.60
2033.00    1.419   190.26
2043.00    1.425   188.92
2053.00    1.432   187.60
2063.00    1.439   186.29
2073.00    1.446   184.99
2083.00    1.454   183.71
2093.00    1.463   182.44
2103.00    1.472   181.19
2113.00    1.482   179.96
2123.00    1.492   178.74
2133.00    1.503   177.53
2143.00    1.514   176.35
2153.00    1.526   175.18
2163.00    1.538   174.03
2173.00    1.551   172.90
2183.00    1.564   171.79
2193.00    1.577   170.70
2203.00    1.591   169.62
2213.00    1.605   168.57
2223.00    1.620   167.53
2233.00    1.635   166.51
2243.00    1.650   165.51
2253.00    1.665   164.53
2263.00    1.681   163.57
2273.00    1.696   162.62
2283.00    1.713   161.69
2293.00    1.729   160.78
2303.00    1.745   159.89
2313.00    1.762   159.01
2323.00    1.779   158.15
2333.00    1.796   157.30
2343.00    1.813   156.48
2353.00    1.830   155.66
2363.00    1.848   154.87
2373.00    1.865   154.08
2383.00    1.883   153.31
2393.00    1.900   152.56
2403.00    1.918   151.82
2413.00    1.935   151.09
2423.00    1.953   150.38
2433.00    1.970   149.68
2443.00    1.988   148.99
2453.00    2.005   148.31
2463.00    2.022   147.65
2473.00    2.040   146.99
2483.00    2.057   146.35
2493.00    2.074   145.72
2503.00    2.091   145.10
2513.00    2.108   144.49
2523.00    2.124   143.88
2533.00    2.141   143.29
2543.00    2.157   142.71
2553.00    2.173   142.13
2563.00    2.188   141.56
2573.00    2.204   141.00
2583.00    2.219   140.45
2593.00    2.234   139.91
2603.00    2.248   139.37
2613.00    2.262   138.84
2623.00    2.276   138.32
2633.00    2.289   137.80
2643.00    2.302   137.29
2653.00    2.315   136.78
2663.00    2.327   136.28
2673.00    2.338   135.78
2683.00    2.349   135.29
2693.00    2.359   134.81
2703.00    2.369   134.32
2713.00    2.378   133.85
2723.00    2.386   133.37
2733.00    2.394   132.90
2743.00    2.401   132.43
2753.00    2.407   131.96
2763.00    2.412   131.50
2773.00    2.417   131.04
2783.00    2.420   130.57
2793.00    2.422   130.11
2803.00    2.423   129.65
2813.00    2.423   129.20
2823.00    2.422   128.74
2833.00    2.420   128.28
2843.00    2.416   127.81
2853.00    2.410   127.35
2863.00    2.403   126.89
2873.00    2.394   126.42
2883.00    2.383   125.94
2893.00    2.370   125.47
2903.00    2.356   124.98
2913.00    2.338   124.49
2923.00    2.318   124.00
2933.00    2.295   123.49
2943.00    2.270   122.97
2953.00    2.240   122.44
2963.00    2.207   121.90
2973.00    2.170   121.33
2983.00    2.128   120.75
2993.00    2.081   120.14
3003.00    2.028   119.50
3013.00    1.968   118.83
3023.00    1.901   118.11
3033.00    1.825   117.33
3043.00    1.738   116.48
3053.00    1.639   115.53
3063.00    1.525   114.46
3073.00    1.394   113.19
3083.00    1.241   111.64
3093.00    1.062   109.60
3103.00    0.852   106.63
3113.00    0.609   101.48
3123.00    0.342    88.59
3133.00    0.150    24.06
3143.00    0.340   318.52
3153.00    0.607   305.48
3163.00    0.853   300.31
3173.00    1.066   297.35
3183.00    1.250   295.34
3193.00    1.409   293.81
3203.00    1.547   292.58
3213.00    1.667   291.53
3223.00    1.773   290.62
3233.00    1.867   289.81
3243.00    1.950   289.07
3253.00    2.025   288.39
3263.00    2.091   287.75
3273.00    2.151   287.15






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 18:23:31



www.stella-vega.de