Double Star Calculator - Orbit

Orbital Elements for ARG9

WDS:	ARG9	WDS ID/Discoverer
P:	1145.503	Orbital period (years)
a:	5.68293	Semi-major axis (arcseconds)
i:	86.295	Inclination (degrees)
Ω:	141.303	Longitude of ascending node (degrees)
T:	1805.187	Epoch of periastron passage (year)
e:	0.76908	Eccentricity
ω:	278.39	Longitude of periastron (degrees)
Start-Year:	1452.24875	Year
End-Year:	2597.7512500000003	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for ARG9
Position:	024700.22+500727.7	Epoch-2000 right ascension and declination
WDS-ID:	02470+5007	WDS designation
Discoverer Code:	ARG9	Discover designation and components
ADS number:	2112	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.86	Magnitude of the primary
V2:	9.05	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 ARG9

WDS 6th Orbit including measures of ARG9

-- 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 ARG9

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.468   151.58
--------------------------
1452.25    3.640   312.88
1462.25    3.713   313.19
1472.25    3.783   313.48
1482.25    3.849   313.77
1492.25    3.913   314.05
1502.25    3.973   314.32
1512.25    4.030   314.58
1522.25    4.083   314.84
1532.25    4.131   315.08
1542.25    4.176   315.33
1552.25    4.216   315.57
1562.25    4.251   315.80
1572.25    4.281   316.03
1582.25    4.305   316.26
1592.25    4.323   316.48
1602.25    4.334   316.71
1612.25    4.338   316.93
1622.25    4.334   317.15
1632.25    4.322   317.38
1642.25    4.300   317.60
1652.25    4.267   317.83
1662.25    4.223   318.06
1672.25    4.165   318.30
1682.25    4.092   318.55
1692.25    4.003   318.80
1702.25    3.894   319.07
1712.25    3.762   319.36
1722.25    3.603   319.67
1732.25    3.411   320.01
1742.25    3.179   320.39
1752.25    2.897   320.85
1762.25    2.550   321.41
1772.25    2.118   322.18
1782.25    1.573   323.42
1792.25    0.887   326.37
1802.25    0.105    16.01
1812.25    0.775   135.87
1822.25    1.454   139.49
1832.25    1.951   140.95
1842.25    2.305   141.87
1852.25    2.558   142.58
1862.25    2.739   143.17
1872.25    2.867   143.71
1882.25    2.955   144.20
1892.25    3.013   144.67
1902.25    3.046   145.13
1912.25    3.058   145.58
1922.25    3.055   146.02
1932.25    3.037   146.48
1942.25    3.008   146.93
1952.25    2.968   147.40
1962.25    2.920   147.89
1972.25    2.865   148.39
1982.25    2.803   148.91
1992.25    2.735   149.46
2002.25    2.662   150.03
2012.25    2.585   150.64
2022.25    2.504   151.29
2032.25    2.419   151.98
2042.25    2.331   152.72
2052.25    2.241   153.53
2062.25    2.149   154.40
2072.25    2.054   155.35
2082.25    1.958   156.39
2092.25    1.861   157.54
2102.25    1.762   158.82
2112.25    1.663   160.25
2122.25    1.564   161.86
2132.25    1.464   163.69
2142.25    1.366   165.78
2152.25    1.268   168.21
2162.25    1.172   171.03
2172.25    1.078   174.35
2182.25    0.988   178.29
2192.25    0.902   183.00
2202.25    0.824   188.65
2212.25    0.754   195.41
2222.25    0.697   203.40
2232.25    0.655   212.63
2242.25    0.631   222.82
2252.25    0.628   233.45
2262.25    0.647   243.82
2272.25    0.684   253.34
2282.25    0.738   261.67
2292.25    0.805   268.75
2302.25    0.881   274.67
2312.25    0.965   279.60
2322.25    1.055   283.72
2332.25    1.148   287.19
2342.25    1.244   290.12
2352.25    1.343   292.63
2362.25    1.443   294.80
2372.25    1.544   296.68
2382.25    1.645   298.33
2392.25    1.747   299.79
2402.25    1.849   301.08
2412.25    1.951   302.25
2422.25    2.052   303.29
2432.25    2.153   304.24
2442.25    2.254   305.11
2452.25    2.353   305.90
2462.25    2.452   306.62
2472.25    2.549   307.29
2482.25    2.646   307.91
2492.25    2.741   308.49
2502.25    2.835   309.03
2512.25    2.927   309.54
2522.25    3.018   310.01
2532.25    3.107   310.46
2542.25    3.194   310.88
2552.25    3.279   311.28
2562.25    3.363   311.66
2572.25    3.444   312.02
2582.25    3.523   312.37
2592.25    3.599   312.70

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 15:04:31