Double Star Calculator - Orbit

Orbital Elements for BU543

WDS:	BU543	WDS ID/Discoverer
P:	2243.424	Orbital period (years)
a:	23.4402	Semi-major axis (arcseconds)
i:	106.765	Inclination (degrees)
Ω:	57.599	Longitude of ascending node (degrees)
T:	1665.292	Epoch of periastron passage (year)
e:	0.81188	Eccentricity
ω:	282.419	Longitude of periastron (degrees)
Start-Year:	903.2882	Year
End-Year:	3146.7118	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU543
Position:	035728.70-010934.0	Epoch-2000 right ascension and declination
WDS-ID:	03575-0110	WDS designation
Discoverer Code:	BU543	Discover designation and components
ADS number:	2894	Aitken Double Star catalog
HD number:	24916	HD catalog number
Hipparcos number:	18512	Hipparcos catalog number
V1:	8.21	Magnitude of the primary
V2:	11.45	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:	n	Flags
Ephemerides:		Ephemerides
Code:	Izm2019	Reference

Double Star Orbit for BU543

WDS 6th Orbit including measures of BU543

-- 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 BU543

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50   10.933    12.83
--------------------------
903.29   18.739   271.54
913.29   18.816   271.12
923.29   18.891   270.70
933.29   18.964   270.29
943.29   19.034   269.88
953.29   19.102   269.47
963.29   19.168   269.07
973.29   19.231   268.66
983.29   19.292   268.26
993.29   19.350   267.86
1003.29   19.405   267.47
1013.29   19.458   267.08
1023.29   19.507   266.68
1033.29   19.554   266.30
1043.29   19.598   265.91
1053.29   19.638   265.52
1063.29   19.675   265.14
1073.29   19.709   264.75
1083.29   19.739   264.37
1093.29   19.766   263.99
1103.29   19.789   263.61
1113.29   19.808   263.23
1123.29   19.824   262.86
1133.29   19.835   262.48
1143.29   19.842   262.10
1153.29   19.845   261.72
1163.29   19.843   261.35
1173.29   19.836   260.97
1183.29   19.825   260.59
1193.29   19.809   260.21
1203.29   19.787   259.84
1213.29   19.760   259.46
1223.29   19.728   259.08
1233.29   19.690   258.69
1243.29   19.646   258.31
1253.29   19.595   257.92
1263.29   19.538   257.54
1273.29   19.474   257.15
1283.29   19.404   256.75
1293.29   19.325   256.36
1303.29   19.239   255.96
1313.29   19.145   255.55
1323.29   19.043   255.15
1333.29   18.932   254.74
1343.29   18.811   254.32
1353.29   18.681   253.90
1363.29   18.540   253.47
1373.29   18.388   253.03
1383.29   18.225   252.59
1393.29   18.050   252.14
1403.29   17.862   251.68
1413.29   17.660   251.21
1423.29   17.443   250.72
1433.29   17.211   250.23
1443.29   16.962   249.72
1453.29   16.695   249.20
1463.29   16.408   248.66
1473.29   16.101   248.09
1483.29   15.770   247.51
1493.29   15.415   246.90
1503.29   15.033   246.26
1513.29   14.620   245.58
1523.29   14.174   244.87
1533.29   13.691   244.10
1543.29   13.166   243.28
1553.29   12.595   242.38
1563.29   11.969   241.40
1573.29   11.281   240.30
1583.29   10.522   239.05
1593.29    9.677   237.59
1603.29    8.732   235.84
1613.29    7.666   233.63
1623.29    6.456   230.64
1633.29    5.078   226.14
1643.29    3.531   217.90
1653.29    1.943   196.03
1663.29    1.378   124.18
1673.29    2.716    81.41
1683.29    4.246    68.63
1693.29    5.546    62.38
1703.29    6.596    58.35
1713.29    7.437    55.33
1723.29    8.116    52.88
1733.29    8.668    50.77
1743.29    9.123    48.90
1753.29    9.499    47.19
1763.29    9.812    45.60
1773.29   10.073    44.10
1783.29   10.292    42.66
1793.29   10.475    41.29
1803.29   10.628    39.95
1813.29   10.754    38.66
1823.29   10.859    37.38
1833.29   10.945    36.14
1843.29   11.014    34.90
1853.29   11.068    33.69
1863.29   11.110    32.48
1873.29   11.141    31.28
1883.29   11.163    30.09
1893.29   11.176    28.90
1903.29   11.181    27.71
1913.29   11.181    26.52
1923.29   11.175    25.33
1933.29   11.164    24.14
1943.29   11.148    22.95
1953.29   11.130    21.75
1963.29   11.108    20.55
1973.29   11.084    19.35
1983.29   11.058    18.13
1993.29   11.031    16.92
2003.29   11.002    15.69
2013.29   10.973    14.46
2023.29   10.943    13.23
2033.29   10.913    11.98
2043.29   10.883    10.73
2053.29   10.854     9.48
2063.29   10.825     8.21
2073.29   10.798     6.94
2083.29   10.771     5.67
2093.29   10.746     4.38
2103.29   10.723     3.09
2113.29   10.701     1.80
2123.29   10.682     0.50
2133.29   10.664   359.20
2143.29   10.649   357.89
2153.29   10.636   356.58
2163.29   10.626   355.27
2173.29   10.618   353.95
2183.29   10.613   352.63
2193.29   10.610   351.31
2203.29   10.611   349.99
2213.29   10.614   348.68
2223.29   10.621   347.36
2233.29   10.630   346.04
2243.29   10.643   344.73
2253.29   10.659   343.42
2263.29   10.678   342.12
2273.29   10.700   340.82
2283.29   10.726   339.52
2293.29   10.754   338.24
2303.29   10.786   336.96
2313.29   10.821   335.69
2323.29   10.859   334.42
2333.29   10.900   333.17
2343.29   10.945   331.92
2353.29   10.992   330.69
2363.29   11.043   329.47
2373.29   11.097   328.25
2383.29   11.153   327.05
2393.29   11.212   325.87
2403.29   11.275   324.69
2413.29   11.340   323.53
2423.29   11.407   322.38
2433.29   11.478   321.25
2443.29   11.551   320.13
2453.29   11.626   319.02
2463.29   11.704   317.93
2473.29   11.784   316.85
2483.29   11.866   315.79
2493.29   11.951   314.75
2503.29   12.038   313.71
2513.29   12.127   312.70
2523.29   12.217   311.69
2533.29   12.310   310.71
2543.29   12.404   309.73
2553.29   12.501   308.78
2563.29   12.598   307.83
2573.29   12.698   306.91
2583.29   12.798   305.99
2593.29   12.901   305.09
2603.29   13.004   304.21
2613.29   13.109   303.34
2623.29   13.215   302.48
2633.29   13.322   301.64
2643.29   13.430   300.81
2653.29   13.539   299.99
2663.29   13.649   299.19
2673.29   13.759   298.40
2683.29   13.871   297.62
2693.29   13.983   296.85
2703.29   14.095   296.10
2713.29   14.208   295.36
2723.29   14.322   294.63
2733.29   14.436   293.91
2743.29   14.550   293.20
2753.29   14.665   292.51
2763.29   14.779   291.82
2773.29   14.894   291.15
2783.29   15.009   290.48
2793.29   15.124   289.83
2803.29   15.239   289.19
2813.29   15.354   288.55
2823.29   15.468   287.93
2833.29   15.583   287.31
2843.29   15.697   286.70
2853.29   15.811   286.10
2863.29   15.924   285.51
2873.29   16.037   284.93
2883.29   16.149   284.36
2893.29   16.261   283.79
2903.29   16.372   283.24
2913.29   16.483   282.69
2923.29   16.592   282.14
2933.29   16.701   281.61
2943.29   16.809   281.08
2953.29   16.917   280.56
2963.29   17.023   280.04
2973.29   17.128   279.53
2983.29   17.232   279.03
2993.29   17.336   278.53
3003.29   17.438   278.04
3013.29   17.538   277.56
3023.29   17.638   277.08
3033.29   17.736   276.60
3043.29   17.833   276.13
3053.29   17.928   275.67
3063.29   18.022   275.21
3073.29   18.114   274.75
3083.29   18.205   274.30
3093.29   18.294   273.86
3103.29   18.381   273.41
3113.29   18.467   272.98
3123.29   18.550   272.54
3133.29   18.632   272.11
3143.29   18.712   271.69

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 15:16:35