Double Star Calculator - Orbit

Orbital Elements for STT201AB
WDS: STT201AB WDS ID/Discoverer
P: 1883.000 Orbital period (years)
a: 1.392 Semi-major axis (arcseconds)
i: 140.3 Inclination (degrees)
Ω: 29.4 Longitude of ascending node (degrees)
T: 2288.000 Epoch of periastron passage (year)
e: 0.274 Eccentricity
ω: 268.2 Longitude of periastron (degrees)
Start-Year: 1083.5 Year
End-Year: 2966.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STT201AB
Position: 092354.55+275354.9 Epoch-2000 right ascension and declination
WDS-ID: 09239+2754 WDS designation
Discoverer Code: STT201AB Discover designation and components
ADS number: 7344 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.48 Magnitude of the primary
V2: 9.48 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 STT201AB



WDS 6th Orbit including measures of STT201AB

-- 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 STT201AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.220   202.58
--------------------------
1083.50    1.419   339.19
1093.50    1.417   337.83
1103.50    1.414   336.46
1113.50    1.412   335.09
1123.50    1.409   333.71
1133.50    1.406   332.32
1143.50    1.404   330.94
1153.50    1.401   329.54
1163.50    1.398   328.14
1173.50    1.396   326.74
1183.50    1.393   325.33
1193.50    1.391   323.91
1203.50    1.388   322.49
1213.50    1.386   321.07
1223.50    1.383   319.64
1233.50    1.381   318.21
1243.50    1.379   316.77
1253.50    1.377   315.32
1263.50    1.375   313.88
1273.50    1.373   312.42
1283.50    1.372   310.97
1293.50    1.370   309.51
1303.50    1.369   308.05
1313.50    1.368   306.59
1323.50    1.367   305.12
1333.50    1.366   303.65
1343.50    1.365   302.18
1353.50    1.365   300.71
1363.50    1.364   299.24
1373.50    1.364   297.76
1383.50    1.364   296.29
1393.50    1.364   294.82
1403.50    1.364   293.34
1413.50    1.365   291.87
1423.50    1.365   290.40
1433.50    1.366   288.93
1443.50    1.367   287.46
1453.50    1.368   286.00
1463.50    1.369   284.53
1473.50    1.371   283.07
1483.50    1.372   281.61
1493.50    1.374   280.16
1503.50    1.375   278.71
1513.50    1.377   277.26
1523.50    1.379   275.82
1533.50    1.381   274.38
1543.50    1.383   272.94
1553.50    1.385   271.51
1563.50    1.387   270.08
1573.50    1.389   268.66
1583.50    1.391   267.24
1593.50    1.393   265.83
1603.50    1.395   264.42
1613.50    1.397   263.01
1623.50    1.399   261.61
1633.50    1.401   260.21
1643.50    1.403   258.82
1653.50    1.405   257.43
1663.50    1.407   256.04
1673.50    1.408   254.66
1683.50    1.410   253.28
1693.50    1.411   251.90
1703.50    1.412   250.52
1713.50    1.413   249.15
1723.50    1.414   247.78
1733.50    1.414   246.40
1743.50    1.414   245.03
1753.50    1.414   243.66
1763.50    1.413   242.29
1773.50    1.413   240.92
1783.50    1.412   239.54
1793.50    1.410   238.17
1803.50    1.408   236.79
1813.50    1.406   235.40
1823.50    1.403   234.01
1833.50    1.400   232.62
1843.50    1.396   231.21
1853.50    1.392   229.80
1863.50    1.387   228.38
1873.50    1.382   226.95
1883.50    1.376   225.51
1893.50    1.370   224.06
1903.50    1.362   222.59
1913.50    1.355   221.10
1923.50    1.346   219.60
1933.50    1.338   218.08
1943.50    1.328   216.54
1953.50    1.317   214.97
1963.50    1.306   213.38
1973.50    1.295   211.76
1983.50    1.282   210.10
1993.50    1.269   208.42
2003.50    1.255   206.70
2013.50    1.240   204.94
2023.50    1.224   203.13
2033.50    1.208   201.28
2043.50    1.191   199.37
2053.50    1.174   197.41
2063.50    1.155   195.39
2073.50    1.136   193.30
2083.50    1.117   191.14
2093.50    1.097   188.90
2103.50    1.076   186.58
2113.50    1.055   184.17
2123.50    1.034   181.65
2133.50    1.012   179.03
2143.50    0.991   176.30
2153.50    0.969   173.44
2163.50    0.948   170.46
2173.50    0.927   167.34
2183.50    0.906   164.08
2193.50    0.887   160.67
2203.50    0.868   157.10
2213.50    0.850   153.39
2223.50    0.834   149.52
2233.50    0.820   145.51
2243.50    0.807   141.37
2253.50    0.796   137.10
2263.50    0.788   132.73
2273.50    0.782   128.28
2283.50    0.779   123.78
2293.50    0.778   119.25
2303.50    0.779   114.72
2313.50    0.784   110.23
2323.50    0.790   105.80
2333.50    0.800   101.46
2343.50    0.811    97.23
2353.50    0.824    93.13
2363.50    0.839    89.17
2373.50    0.856    85.35
2383.50    0.874    81.69
2393.50    0.893    78.18
2403.50    0.914    74.82
2413.50    0.934    71.61
2423.50    0.956    68.54
2433.50    0.978    65.60
2443.50    0.999    62.80
2453.50    1.021    60.11
2463.50    1.043    57.54
2473.50    1.065    55.07
2483.50    1.086    52.70
2493.50    1.107    50.42
2503.50    1.127    48.23
2513.50    1.147    46.11
2523.50    1.167    44.06
2533.50    1.185    42.08
2543.50    1.203    40.16
2553.50    1.221    38.29
2563.50    1.237    36.48
2573.50    1.253    34.71
2583.50    1.268    32.98
2593.50    1.283    31.30
2603.50    1.297    29.65
2613.50    1.310    28.04
2623.50    1.322    26.45
2633.50    1.333    24.90
2643.50    1.344    23.37
2653.50    1.354    21.86
2663.50    1.364    20.38
2673.50    1.372    18.92
2683.50    1.381    17.47
2693.50    1.388    16.04
2703.50    1.395    14.62
2713.50    1.401    13.22
2723.50    1.407    11.83
2733.50    1.412    10.45
2743.50    1.416     9.08
2753.50    1.420     7.72
2763.50    1.424     6.36
2773.50    1.427     5.01
2783.50    1.429     3.67
2793.50    1.432     2.33
2803.50    1.433     0.99
2813.50    1.435   359.66
2823.50    1.436   358.33
2833.50    1.436   357.00
2843.50    1.436   355.67
2853.50    1.436   354.34
2863.50    1.436   353.01
2873.50    1.435   351.68
2883.50    1.434   350.35
2893.50    1.433   349.02
2903.50    1.432   347.68
2913.50    1.430   346.34
2923.50    1.429   345.00
2933.50    1.427   343.66
2943.50    1.425   342.31
2953.50    1.422   340.95
2963.50    1.420   339.60






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 16:17:40



www.stella-vega.de