Double Star Calculator - Orbit

Orbital Elements for SEE358

WDS:	SEE358	WDS ID/Discoverer
P:	1155.474	Orbital period (years)
a:	3.44935	Semi-major axis (arcseconds)
i:	66.992	Inclination (degrees)
Ω:	96.441	Longitude of ascending node (degrees)
T:	2065.149	Epoch of periastron passage (year)
e:	0.86024	Eccentricity
ω:	73.173	Longitude of periastron (degrees)
Start-Year:	1447.26325	Year
End-Year:	2602.73675	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE358
Position:	184444.48-254751.4	Epoch-2000 right ascension and declination
WDS-ID:	18447-2548	WDS designation
Discoverer Code:	SEE358	Discover designation and components
ADS number:	11622	Aitken Double Star catalog
HD number:	173099	HD catalog number
Hipparcos number:	91967	Hipparcos catalog number
V1:	8.41	Magnitude of the primary
V2:	8.82	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 SEE358

WDS 6th Orbit including measures of SEE358

-- 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 SEE358

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.151    74.81
--------------------------
1447.26    3.131   325.59
1457.26    3.108   326.35
1467.26    3.085   327.12
1477.26    3.061   327.90
1487.26    3.036   328.70
1497.26    3.010   329.51
1507.26    2.983   330.33
1517.26    2.956   331.17
1527.26    2.928   332.02
1537.26    2.899   332.89
1547.26    2.869   333.78
1557.26    2.839   334.69
1567.26    2.808   335.61
1577.26    2.777   336.56
1587.26    2.745   337.53
1597.26    2.713   338.52
1607.26    2.680   339.54
1617.26    2.646   340.58
1627.26    2.612   341.65
1637.26    2.578   342.75
1647.26    2.543   343.87
1657.26    2.508   345.03
1667.26    2.473   346.22
1677.26    2.437   347.45
1687.26    2.401   348.71
1697.26    2.365   350.01
1707.26    2.329   351.35
1717.26    2.292   352.73
1727.26    2.256   354.16
1737.26    2.219   355.64
1747.26    2.183   357.16
1757.26    2.146   358.74
1767.26    2.109     0.37
1777.26    2.073     2.06
1787.26    2.037     3.81
1797.26    2.001     5.63
1807.26    1.965     7.51
1817.26    1.929     9.46
1827.26    1.894    11.48
1837.26    1.860    13.57
1847.26    1.825    15.75
1857.26    1.791    18.01
1867.26    1.758    20.36
1877.26    1.726    22.79
1887.26    1.693    25.32
1897.26    1.662    27.95
1907.26    1.630    30.67
1917.26    1.600    33.51
1927.26    1.569    36.45
1937.26    1.539    39.51
1947.26    1.508    42.69
1957.26    1.477    46.01
1967.26    1.445    49.47
1977.26    1.410    53.10
1987.26    1.373    56.91
1997.26    1.331    60.95
2007.26    1.282    65.27
2017.26    1.222    69.97
2027.26    1.144    75.24
2037.26    1.035    81.44
2047.26    0.868    89.55
2057.26    0.575   103.75
2067.26    0.192   186.80
2077.26    0.622   262.06
2087.26    1.027   273.33
2097.26    1.332   278.68
2107.26    1.576   282.18
2117.26    1.778   284.80
2127.26    1.951   286.93
2137.26    2.101   288.73
2147.26    2.232   290.30
2157.26    2.349   291.71
2167.26    2.454   292.99
2177.26    2.549   294.17
2187.26    2.634   295.27
2197.26    2.712   296.30
2207.26    2.782   297.28
2217.26    2.846   298.21
2227.26    2.904   299.11
2237.26    2.958   299.97
2247.26    3.006   300.80
2257.26    3.050   301.60
2267.26    3.090   302.39
2277.26    3.127   303.15
2287.26    3.160   303.90
2297.26    3.189   304.63
2307.26    3.216   305.35
2317.26    3.240   306.06
2327.26    3.261   306.76
2337.26    3.279   307.45
2347.26    3.295   308.14
2357.26    3.309   308.81
2367.26    3.320   309.49
2377.26    3.330   310.15
2387.26    3.337   310.82
2397.26    3.343   311.48
2407.26    3.346   312.14
2417.26    3.348   312.80
2427.26    3.348   313.46
2437.26    3.347   314.12
2447.26    3.344   314.78
2457.26    3.339   315.44
2467.26    3.333   316.10
2477.26    3.326   316.77
2487.26    3.317   317.44
2497.26    3.307   318.11
2507.26    3.296   318.79
2517.26    3.283   319.47
2527.26    3.270   320.16
2537.26    3.255   320.86
2547.26    3.239   321.56
2557.26    3.222   322.26
2567.26    3.203   322.98
2577.26    3.184   323.70
2587.26    3.164   324.44
2597.26    3.143   325.18

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 17:55:01