Double Star Calculator - Orbit

Orbital Elements for STT228

WDS:	STT228	WDS ID/Discoverer
P:	1229.000	Orbital period (years)
a:	1.069	Semi-major axis (arcseconds)
i:	101.7	Inclination (degrees)
Ω:	164.6	Longitude of ascending node (degrees)
T:	2102.800	Epoch of periastron passage (year)
e:	0.548	Eccentricity
ω:	58.7	Longitude of periastron (degrees)
Start-Year:	1410.5	Year
End-Year:	2639.5	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT228
Position:	104716.93+223432.0	Epoch-2000 right ascension and declination
WDS-ID:	10473+2235	WDS designation
Discoverer Code:	STT228	Discover designation and components
ADS number:	7926	Aitken Double Star catalog
HD number:	93392	HD catalog number
Hipparcos number:	52759	Hipparcos catalog number
V1:	8.17	Magnitude of the primary
V2:	8.93	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	PkO2018b	Reference

Double Star Orbit for STT228

WDS 6th Orbit including measures of STT228

-- 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 STT228

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.628   167.76
--------------------------
1410.50    1.068   330.69
1420.50    1.049   330.19
1430.50    1.030   329.66
1440.50    1.010   329.11
1450.50    0.989   328.55
1460.50    0.968   327.95
1470.50    0.946   327.33
1480.50    0.924   326.68
1490.50    0.901   326.00
1500.50    0.878   325.28
1510.50    0.854   324.53
1520.50    0.830   323.73
1530.50    0.805   322.88
1540.50    0.780   321.97
1550.50    0.755   321.01
1560.50    0.729   319.98
1570.50    0.703   318.87
1580.50    0.677   317.68
1590.50    0.651   316.39
1600.50    0.624   314.99
1610.50    0.597   313.47
1620.50    0.571   311.80
1630.50    0.544   309.97
1640.50    0.518   307.96
1650.50    0.492   305.73
1660.50    0.466   303.26
1670.50    0.441   300.50
1680.50    0.417   297.41
1690.50    0.394   293.95
1700.50    0.372   290.07
1710.50    0.351   285.72
1720.50    0.333   280.86
1730.50    0.317   275.46
1740.50    0.303   269.53
1750.50    0.293   263.13
1760.50    0.286   256.34
1770.50    0.284   249.33
1780.50    0.285   242.28
1790.50    0.290   235.38
1800.50    0.298   228.80
1810.50    0.310   222.67
1820.50    0.325   217.04
1830.50    0.342   211.93
1840.50    0.362   207.35
1850.50    0.382   203.23
1860.50    0.404   199.55
1870.50    0.426   196.25
1880.50    0.449   193.29
1890.50    0.472   190.61
1900.50    0.495   188.18
1910.50    0.517   185.95
1920.50    0.538   183.91
1930.50    0.559   182.03
1940.50    0.578   180.27
1950.50    0.596   178.62
1960.50    0.611   177.06
1970.50    0.624   175.58
1980.50    0.634   174.14
1990.50    0.641   172.75
2000.50    0.644   171.38
2010.50    0.642   170.01
2020.50    0.635   168.62
2030.50    0.621   167.18
2040.50    0.600   165.66
2050.50    0.571   164.01
2060.50    0.533   162.15
2070.50    0.484   159.95
2080.50    0.426   157.21
2090.50    0.358   153.50
2100.50    0.283   147.90
2110.50    0.204   138.05
2120.50    0.133   116.76
2130.50    0.104    71.15
2140.50    0.147    30.76
2150.50    0.222    13.14
2160.50    0.303     4.71
2170.50    0.384   359.84
2180.50    0.461   356.64
2190.50    0.534   354.34
2200.50    0.602   352.57
2210.50    0.666   351.16
2220.50    0.725   349.98
2230.50    0.780   348.98
2240.50    0.831   348.11
2250.50    0.878   347.33
2260.50    0.921   346.63
2270.50    0.961   345.99
2280.50    0.998   345.40
2290.50    1.031   344.85
2300.50    1.062   344.33
2310.50    1.089   343.84
2320.50    1.115   343.37
2330.50    1.137   342.92
2340.50    1.158   342.49
2350.50    1.176   342.07
2360.50    1.192   341.67
2370.50    1.206   341.27
2380.50    1.218   340.89
2390.50    1.228   340.51
2400.50    1.237   340.13
2410.50    1.244   339.76
2420.50    1.249   339.40
2430.50    1.253   339.04
2440.50    1.255   338.67
2450.50    1.256   338.31
2460.50    1.256   337.96
2470.50    1.254   337.59
2480.50    1.251   337.23
2490.50    1.247   336.87
2500.50    1.242   336.50
2510.50    1.235   336.13
2520.50    1.228   335.76
2530.50    1.219   335.38
2540.50    1.210   334.99
2550.50    1.199   334.60
2560.50    1.188   334.20
2570.50    1.175   333.80
2580.50    1.162   333.38
2590.50    1.148   332.96
2600.50    1.133   332.52
2610.50    1.117   332.07
2620.50    1.101   331.61
2630.50    1.084   331.13

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 16:30:38