Double Star Calculator - Orbit

Orbital Elements for STF1429

WDS:	STF1429	WDS ID/Discoverer
P:	1280.680	Orbital period (years)
a:	2.1	Semi-major axis (arcseconds)
i:	107.7	Inclination (degrees)
Ω:	113.9	Longitude of ascending node (degrees)
T:	2170.150	Epoch of periastron passage (year)
e:	0.28	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	1384.6599999999999	Year
End-Year:	2665.34	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1429
Position:	102501.79+243644.1	Epoch-2000 right ascension and declination
WDS-ID:	10250+2437	WDS designation
Discoverer Code:	STF1429	Discover designation and components
ADS number:	7758	Aitken Double Star catalog
HD number:	90183	HD catalog number
Hipparcos number:	50998	Hipparcos catalog number
V1:	9.05	Magnitude of the primary
V2:	9.34	Magnitude of the secondary
Equinox:		Equinox
Date:	1981	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:	Zul1981	Reference

Double Star Orbit for STF1429

WDS 6th Orbit including measures of STF1429

-- 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 STF1429

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.830   150.17
--------------------------
1384.66    2.387   301.77
1394.66    2.427   301.15
1404.66    2.464   300.55
1414.66    2.498   299.96
1424.66    2.529   299.38
1434.66    2.558   298.83
1444.66    2.584   298.28
1454.66    2.607   297.74
1464.66    2.627   297.21
1474.66    2.644   296.69
1484.66    2.659   296.18
1494.66    2.670   295.67
1504.66    2.679   295.16
1514.66    2.685   294.66
1524.66    2.688   294.16
1534.66    2.688   293.66
1544.66    2.685   293.16
1554.66    2.679   292.65
1564.66    2.671   292.15
1574.66    2.659   291.64
1584.66    2.645   291.12
1594.66    2.628   290.60
1604.66    2.607   290.07
1614.66    2.585   289.54
1624.66    2.559   288.99
1634.66    2.530   288.43
1644.66    2.499   287.86
1654.66    2.465   287.27
1664.66    2.428   286.67
1674.66    2.388   286.04
1684.66    2.345   285.40
1694.66    2.300   284.73
1704.66    2.252   284.03
1714.66    2.202   283.30
1724.66    2.149   282.54
1734.66    2.093   281.73
1744.66    2.035   280.88
1754.66    1.974   279.98
1764.66    1.911   279.02
1774.66    1.845   278.00
1784.66    1.778   276.89
1794.66    1.708   275.70
1804.66    1.636   274.41
1814.66    1.563   272.99
1824.66    1.487   271.43
1834.66    1.411   269.71
1844.66    1.333   267.79
1854.66    1.254   265.62
1864.66    1.175   263.17
1874.66    1.096   260.36
1884.66    1.017   257.11
1894.66    0.941   253.33
1904.66    0.867   248.89
1914.66    0.797   243.64
1924.66    0.732   237.43
1934.66    0.677   230.11
1944.66    0.632   221.62
1954.66    0.601   212.06
1964.66    0.587   201.76
1974.66    0.590   191.26
1984.66    0.611   181.19
1994.66    0.647   172.01
2004.66    0.696   163.95
2014.66    0.753   157.04
2024.66    0.818   151.16
2034.66    0.886   146.16
2044.66    0.956   141.88
2054.66    1.026   138.19
2064.66    1.095   134.97
2074.66    1.162   132.13
2084.66    1.225   129.58
2094.66    1.284   127.28
2104.66    1.337   125.18
2114.66    1.385   123.22
2124.66    1.425   121.39
2134.66    1.459   119.65
2144.66    1.484   117.98
2154.66    1.502   116.36
2164.66    1.511   114.77
2174.66    1.511   113.19
2184.66    1.503   111.59
2194.66    1.486   109.98
2204.66    1.462   108.31
2214.66    1.429   106.58
2224.66    1.389   104.76
2234.66    1.342   102.82
2244.66    1.289   100.73
2254.66    1.231    98.45
2264.66    1.168    95.94
2274.66    1.102    93.12
2284.66    1.033    89.95
2294.66    0.963    86.31
2304.66    0.892    82.09
2314.66    0.824    77.17
2324.66    0.760    71.38
2334.66    0.701    64.58
2344.66    0.652    56.63
2354.66    0.614    47.56
2364.66    0.592    37.55
2374.66    0.586    27.07
2384.66    0.599    16.72
2394.66    0.628     7.07
2404.66    0.672   358.47
2414.66    0.727   351.04
2424.66    0.790   344.72
2434.66    0.859   339.39
2444.66    0.933   334.88
2454.66    1.010   331.04
2464.66    1.088   327.74
2474.66    1.167   324.89
2484.66    1.246   322.41
2494.66    1.325   320.21
2504.66    1.403   318.27
2514.66    1.480   316.53
2524.66    1.555   314.95
2534.66    1.629   313.53
2544.66    1.701   312.22
2554.66    1.771   311.02
2564.66    1.839   309.91
2574.66    1.904   308.88
2584.66    1.968   307.91
2594.66    2.029   307.00
2604.66    2.087   306.15
2614.66    2.143   305.34
2624.66    2.197   304.57
2634.66    2.247   303.84
2644.66    2.296   303.14
2654.66    2.341   302.47
2664.66    2.384   301.82

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 16:27:33