Double Star Calculator - Orbit

Orbital Elements for COU382

WDS:	COU382	WDS ID/Discoverer
P:	1447.200	Orbital period (years)
a:	1.032	Semi-major axis (arcseconds)
i:	130.5	Inclination (degrees)
Ω:	80.6	Longitude of ascending node (degrees)
T:	1959.640	Epoch of periastron passage (year)
e:	0.856	Eccentricity
ω:	327.4	Longitude of periastron (degrees)
Start-Year:	1301.4	Year
End-Year:	2748.6	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU382
Position:	084220.12+200211.7	Epoch-2000 right ascension and declination
WDS-ID:	08423+2002	WDS designation
Discoverer Code:	COU382	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.4	Magnitude of the primary
V2:	10.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	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:	Lin2023	Reference

Double Star Orbit for COU382

WDS 6th Orbit including measures of COU382

-- 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 COU382

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.371   343.80
--------------------------
1301.40    1.761   281.27
1311.40    1.761   280.98
1321.40    1.761   280.69
1331.40    1.760   280.41
1341.40    1.759   280.12
1351.40    1.757   279.83
1361.40    1.755   279.54
1371.40    1.752   279.25
1381.40    1.749   278.96
1391.40    1.745   278.67
1401.40    1.741   278.38
1411.40    1.736   278.09
1421.40    1.731   277.79
1431.40    1.725   277.49
1441.40    1.718   277.19
1451.40    1.711   276.89
1461.40    1.704   276.58
1471.40    1.696   276.28
1481.40    1.687   275.97
1491.40    1.678   275.65
1501.40    1.668   275.33
1511.40    1.657   275.01
1521.40    1.646   274.69
1531.40    1.635   274.35
1541.40    1.622   274.02
1551.40    1.609   273.68
1561.40    1.596   273.33
1571.40    1.581   272.98
1581.40    1.566   272.62
1591.40    1.551   272.25
1601.40    1.534   271.88
1611.40    1.517   271.50
1621.40    1.499   271.11
1631.40    1.480   270.71
1641.40    1.461   270.30
1651.40    1.440   269.87
1661.40    1.419   269.44
1671.40    1.397   268.99
1681.40    1.374   268.53
1691.40    1.350   268.05
1701.40    1.325   267.55
1711.40    1.298   267.03
1721.40    1.271   266.49
1731.40    1.243   265.93
1741.40    1.213   265.34
1751.40    1.183   264.72
1761.40    1.150   264.07
1771.40    1.117   263.37
1781.40    1.082   262.64
1791.40    1.045   261.85
1801.40    1.007   261.01
1811.40    0.967   260.09
1821.40    0.925   259.10
1831.40    0.881   258.01
1841.40    0.835   256.80
1851.40    0.786   255.44
1861.40    0.734   253.90
1871.40    0.679   252.12
1881.40    0.620   250.01
1891.40    0.558   247.44
1901.40    0.491   244.20
1911.40    0.418   239.87
1921.40    0.340   233.64
1931.40    0.255   223.42
1941.40    0.170   202.83
1951.40    0.115   153.39
1961.40    0.144    95.12
1971.40    0.181    61.66
1981.40    0.208    38.10
1991.40    0.237    19.97
2001.40    0.271     6.10
2011.40    0.310   355.51
2021.40    0.350   347.29
2031.40    0.392   340.81
2041.40    0.433   335.56
2051.40    0.475   331.24
2061.40    0.516   327.61
2071.40    0.556   324.50
2081.40    0.595   321.82
2091.40    0.634   319.46
2101.40    0.672   317.37
2111.40    0.709   315.51
2121.40    0.745   313.82
2131.40    0.780   312.29
2141.40    0.814   310.89
2151.40    0.848   309.60
2161.40    0.880   308.41
2171.40    0.912   307.30
2181.40    0.943   306.26
2191.40    0.973   305.30
2201.40    1.003   304.38
2211.40    1.032   303.53
2221.40    1.060   302.71
2231.40    1.087   301.94
2241.40    1.114   301.21
2251.40    1.140   300.51
2261.40    1.165   299.84
2271.40    1.190   299.20
2281.40    1.214   298.58
2291.40    1.238   297.99
2301.40    1.261   297.42
2311.40    1.283   296.87
2321.40    1.305   296.34
2331.40    1.326   295.82
2341.40    1.347   295.33
2351.40    1.367   294.84
2361.40    1.386   294.37
2371.40    1.405   293.92
2381.40    1.424   293.47
2391.40    1.442   293.04
2401.40    1.459   292.62
2411.40    1.476   292.20
2421.40    1.492   291.80
2431.40    1.508   291.40
2441.40    1.523   291.02
2451.40    1.538   290.64
2461.40    1.552   290.26
2471.40    1.566   289.90
2481.40    1.579   289.54
2491.40    1.592   289.18
2501.40    1.605   288.84
2511.40    1.617   288.49
2521.40    1.628   288.16
2531.40    1.639   287.82
2541.40    1.649   287.49
2551.40    1.659   287.17
2561.40    1.669   286.85
2571.40    1.678   286.53
2581.40    1.686   286.21
2591.40    1.695   285.90
2601.40    1.702   285.60
2611.40    1.709   285.29
2621.40    1.716   284.99
2631.40    1.722   284.69
2641.40    1.728   284.39
2651.40    1.733   284.09
2661.40    1.738   283.79
2671.40    1.743   283.50
2681.40    1.747   283.21
2691.40    1.750   282.92
2701.40    1.753   282.63
2711.40    1.756   282.34
2721.40    1.758   282.05
2731.40    1.759   281.76
2741.40    1.760   281.48

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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 16:09:46