Double Star Calculator - Orbit

Orbital Elements for STF158AB

WDS:	STF158AB	WDS ID/Discoverer
P:	1304.676	Orbital period (years)
a:	3.9315	Semi-major axis (arcseconds)
i:	80.576	Inclination (degrees)
Ω:	71.233	Longitude of ascending node (degrees)
T:	1789.667	Epoch of periastron passage (year)
e:	0.82397	Eccentricity
ω:	91.847	Longitude of periastron (degrees)
Start-Year:	1372.662	Year
End-Year:	2677.3379999999997	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF158AB
Position:	014644.07+330945.5	Epoch-2000 right ascension and declination
WDS-ID:	01467+3310	WDS designation
Discoverer Code:	STF158AB	Discover designation and components
ADS number:	1406	Aitken Double Star catalog
HD number:	10828	HD catalog number
Hipparcos number:	8283	Hipparcos catalog number
V1:	8.96	Magnitude of the primary
V2:	9.40	Magnitude of the secondary
Equinox:		Equinox
Date:	2015	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:	Izm2019	Reference

Double Star Orbit for STF158AB

WDS 6th Orbit including measures of STF158AB

-- 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 STF158AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.091   272.52
--------------------------
1372.66    1.855    37.18
1382.66    1.890    38.31
1392.66    1.924    39.39
1402.66    1.958    40.45
1412.66    1.991    41.46
1422.66    2.024    42.44
1432.66    2.057    43.39
1442.66    2.088    44.31
1452.66    2.119    45.21
1462.66    2.149    46.08
1472.66    2.178    46.92
1482.66    2.206    47.74
1492.66    2.233    48.55
1502.66    2.258    49.33
1512.66    2.282    50.10
1522.66    2.304    50.85
1532.66    2.325    51.59
1542.66    2.344    52.32
1552.66    2.360    53.03
1562.66    2.375    53.74
1572.66    2.387    54.44
1582.66    2.396    55.13
1592.66    2.402    55.82
1602.66    2.405    56.50
1612.66    2.404    57.19
1622.66    2.400    57.87
1632.66    2.390    58.56
1642.66    2.376    59.26
1652.66    2.356    59.96
1662.66    2.329    60.68
1672.66    2.295    61.42
1682.66    2.252    62.19
1692.66    2.199    62.99
1702.66    2.134    63.83
1712.66    2.054    64.73
1722.66    1.955    65.72
1732.66    1.833    66.82
1742.66    1.680    68.10
1752.66    1.485    69.68
1762.66    1.229    71.83
1772.66    0.881    75.42
1782.66    0.407    86.09
1792.66    0.231   222.76
1802.66    0.737   245.38
1812.66    1.113   250.09
1822.66    1.381   252.64
1832.66    1.577   254.44
1842.66    1.726   255.89
1852.66    1.841   257.13
1862.66    1.931   258.24
1872.66    2.001   259.26
1882.66    2.057   260.22
1892.66    2.100   261.14
1902.66    2.133   262.02
1912.66    2.157   262.88
1922.66    2.174   263.73
1932.66    2.185   264.56
1942.66    2.190   265.39
1952.66    2.190   266.21
1962.66    2.186   267.04
1972.66    2.179   267.87
1982.66    2.168   268.70
1992.66    2.155   269.55
2002.66    2.138   270.41
2012.66    2.120   271.28
2022.66    2.099   272.17
2032.66    2.076   273.08
2042.66    2.052   274.01
2052.66    2.026   274.96
2062.66    1.999   275.94
2072.66    1.971   276.94
2082.66    1.942   277.97
2092.66    1.911   279.04
2102.66    1.881   280.14
2112.66    1.849   281.28
2122.66    1.817   282.46
2132.66    1.784   283.68
2142.66    1.751   284.94
2152.66    1.718   286.26
2162.66    1.685   287.63
2172.66    1.652   289.05
2182.66    1.619   290.53
2192.66    1.586   292.07
2202.66    1.554   293.67
2212.66    1.522   295.35
2222.66    1.491   297.09
2232.66    1.460   298.91
2242.66    1.430   300.81
2252.66    1.401   302.78
2262.66    1.374   304.84
2272.66    1.347   306.97
2282.66    1.322   309.20
2292.66    1.299   311.50
2302.66    1.277   313.89
2312.66    1.256   316.36
2322.66    1.238   318.90
2332.66    1.222   321.52
2342.66    1.207   324.20
2352.66    1.195   326.95
2362.66    1.186   329.74
2372.66    1.178   332.57
2382.66    1.173   335.44
2392.66    1.171   338.32
2402.66    1.171   341.20
2412.66    1.174   344.08
2422.66    1.179   346.94
2432.66    1.187   349.77
2442.66    1.197   352.56
2452.66    1.209   355.29
2462.66    1.224   357.97
2472.66    1.240     0.57
2482.66    1.259     3.11
2492.66    1.280     5.56
2502.66    1.302     7.94
2512.66    1.326    10.23
2522.66    1.352    12.44
2532.66    1.379    14.56
2542.66    1.407    16.60
2552.66    1.437    18.56
2562.66    1.467    20.43
2572.66    1.499    22.23
2582.66    1.531    23.96
2592.66    1.564    25.61
2602.66    1.597    27.20
2612.66    1.631    28.72
2622.66    1.665    30.17
2632.66    1.700    31.57
2642.66    1.734    32.91
2652.66    1.769    34.20
2662.66    1.804    35.44
2672.66    1.839    36.64

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 14:53:43