Double Star Calculator - Orbit

Orbital Elements for S825AB

WDS:	S825AB	WDS ID/Discoverer
P:	110000.000	Orbital period (years)
a:	136.0	Semi-major axis (arcseconds)
i:	128.0	Inclination (degrees)
Ω:	139.0	Longitude of ascending node (degrees)
T:	-2788.000	Epoch of periastron passage (year)
e:	0.75	Eccentricity
ω:	82.0	Longitude of periastron (degrees)
Start-Year:	-52975.0	Year
End-Year:	57025.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for S825AB
Position:	231002.57+365053.9	Epoch-2000 right ascension and declination
WDS-ID:	23100+3651	WDS designation
Discoverer Code:	S825AB	Discover designation and components
ADS number:	16558	Aitken Double Star catalog
HD number:	218741	HD catalog number
Hipparcos number:	114390	Hipparcos catalog number
V1:	7.78	Magnitude of the primary
V2:	8.26	Magnitude of the secondary
Equinox:		Equinox
Date:	2005	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Kis2009	Reference

Double Star Orbit for S825AB

WDS 6th Orbit including measures of S825AB

-- 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 S825AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   66.925   318.69
--------------------------
-52975.00   146.513   236.42
-51975.00   145.936   235.27
-50975.00   145.328   234.11
-49975.00   144.689   232.94
-48975.00   144.020   231.75
-47975.00   143.319   230.56
-46975.00   142.589   229.35
-45975.00   141.827   228.13
-44975.00   141.036   226.90
-43975.00   140.214   225.65
-42975.00   139.362   224.39
-41975.00   138.478   223.12
-40975.00   137.564   221.82
-39975.00   136.618   220.51
-38975.00   135.639   219.18
-37975.00   134.628   217.83
-36975.00   133.584   216.46
-35975.00   132.504   215.07
-34975.00   131.389   213.65
-33975.00   130.237   212.21
-32975.00   129.047   210.74
-31975.00   127.816   209.25
-30975.00   126.543   207.73
-29975.00   125.225   206.17
-28975.00   123.860   204.58
-27975.00   122.445   202.96
-26975.00   120.976   201.29
-25975.00   119.449   199.59
-24975.00   117.859   197.84
-23975.00   116.201   196.04
-22975.00   114.468   194.18
-21975.00   112.654   192.27
-20975.00   110.749   190.30
-19975.00   108.743   188.25
-18975.00   106.624   186.12
-17975.00   104.378   183.91
-16975.00   101.986   181.59
-15975.00   99.427   179.16
-14975.00   96.676   176.60
-13975.00   93.699   173.88
-12975.00   90.455   170.97
-11975.00   86.890   167.84
-10975.00   82.936   164.42
-9975.00   78.501   160.64
-8975.00   73.459   156.37
-7975.00   67.640   151.42
-6975.00   60.803   145.45
-5975.00   52.633   137.78
-4975.00   42.798   126.90
-3975.00   31.484   108.68
-2975.00   22.036    71.73
-1975.00   23.854    19.44
-975.00   34.901   349.16
25.00   46.888   334.15
1025.00   57.609   325.07
2025.00   66.912   318.70
3025.00   74.999   313.80
4025.00   82.091   309.80
5025.00   88.368   306.41
6025.00   93.972   303.44
7025.00   99.011   300.79
8025.00   103.569   298.39
9025.00   107.713   296.18
10025.00   111.495   294.13
11025.00   114.959   292.21
12025.00   118.142   290.40
13025.00   121.071   288.67
14025.00   123.773   287.03
15025.00   126.269   285.45
16025.00   128.576   283.93
17025.00   130.710   282.47
18025.00   132.685   281.05
19025.00   134.514   279.67
20025.00   136.205   278.32
21025.00   137.770   277.01
22025.00   139.216   275.72
23025.00   140.551   274.46
24025.00   141.781   273.23
25025.00   142.912   272.01
26025.00   143.951   270.81
27025.00   144.901   269.63
28025.00   145.768   268.46
29025.00   146.556   267.31
30025.00   147.269   266.17
31025.00   147.909   265.04
32025.00   148.481   263.91
33025.00   148.987   262.80
34025.00   149.430   261.69
35025.00   149.813   260.59
36025.00   150.138   259.49
37025.00   150.407   258.40
38025.00   150.623   257.32
39025.00   150.787   256.23
40025.00   150.902   255.15
41025.00   150.968   254.06
42025.00   150.988   252.98
43025.00   150.962   251.90
44025.00   150.893   250.82
45025.00   150.782   249.74
46025.00   150.629   248.65
47025.00   150.437   247.56
48025.00   150.205   246.47
49025.00   149.936   245.38
50025.00   149.629   244.28
51025.00   149.287   243.18
52025.00   148.909   242.07
53025.00   148.496   240.95
54025.00   148.050   239.83
55025.00   147.570   238.70
56025.00   147.057   237.57

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 18:48:27