Double Star Calculator - Orbit

Orbital Elements for BU1244
WDS: BU1244 WDS ID/Discoverer
P: 1043.619 Orbital period (years)
a: 1.44137 Semi-major axis (arcseconds)
i: 122.351 Inclination (degrees)
Ω: 58.583 Longitude of ascending node (degrees)
T: 1849.179 Epoch of periastron passage (year)
e: 0.71393 Eccentricity
ω: 286.731 Longitude of periastron (degrees)
Start-Year: 1503.1906 Year
End-Year: 2546.8094 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1244
Position: 081345.54+015908.4 Epoch-2000 right ascension and declination
WDS-ID: 08138+0159 WDS designation
Discoverer Code: BU1244 Discover designation and components
ADS number: 6671 Aitken Double Star catalog
HD number: 68706 HD catalog number
Hipparcos number: 40297 Hipparcos catalog number
V1: 8.59 Magnitude of the primary
V2: 9.15 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 BU1244



WDS 6th Orbit including measures of BU1244

-- 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 BU1244
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.002     3.27
--------------------------
1503.19    1.584   279.13
1513.19    1.585   278.06
1523.19    1.585   276.99
1533.19    1.584   275.92
1543.19    1.582   274.85
1553.19    1.579   273.78
1563.19    1.574   272.70
1573.19    1.569   271.61
1583.19    1.562   270.51
1593.19    1.553   269.41
1603.19    1.543   268.29
1613.19    1.531   267.15
1623.19    1.518   265.99
1633.19    1.503   264.82
1643.19    1.485   263.62
1653.19    1.466   262.38
1663.19    1.444   261.11
1673.19    1.420   259.81
1683.19    1.393   258.45
1693.19    1.363   257.03
1703.19    1.330   255.55
1713.19    1.292   253.99
1723.19    1.251   252.33
1733.19    1.206   250.55
1743.19    1.155   248.63
1753.19    1.098   246.51
1763.19    1.034   244.15
1773.19    0.963   241.46
1783.19    0.883   238.30
1793.19    0.791   234.47
1803.19    0.687   229.55
1813.19    0.570   222.72
1823.19    0.438   212.00
1833.19    0.305   191.81
1843.19    0.225   149.92
1853.19    0.279   103.16
1863.19    0.398    78.80
1873.19    0.511    65.72
1883.19    0.603    57.07
1893.19    0.674    50.49
1903.19    0.731    45.06
1913.19    0.776    40.33
1923.19    0.813    36.08
1933.19    0.844    32.17
1943.19    0.870    28.52
1953.19    0.892    25.06
1963.19    0.911    21.75
1973.19    0.929    18.58
1983.19    0.945    15.52
1993.19    0.959    12.56
2003.19    0.973     9.68
2013.19    0.986     6.88
2023.19    0.998     4.16
2033.19    1.011     1.49
2043.19    1.023   358.90
2053.19    1.034   356.36
2063.19    1.046   353.88
2073.19    1.058   351.45
2083.19    1.070   349.08
2093.19    1.082   346.76
2103.19    1.095   344.50
2113.19    1.107   342.28
2123.19    1.120   340.11
2133.19    1.133   338.00
2143.19    1.146   335.93
2153.19    1.159   333.90
2163.19    1.172   331.93
2173.19    1.185   329.99
2183.19    1.199   328.11
2193.19    1.213   326.26
2203.19    1.227   324.45
2213.19    1.241   322.69
2223.19    1.254   320.96
2233.19    1.268   319.28
2243.19    1.282   317.63
2253.19    1.296   316.01
2263.19    1.310   314.43
2273.19    1.324   312.88
2283.19    1.338   311.37
2293.19    1.352   309.88
2303.19    1.365   308.43
2313.19    1.379   307.00
2323.19    1.392   305.60
2333.19    1.405   304.23
2343.19    1.418   302.88
2353.19    1.430   301.56
2363.19    1.443   300.26
2373.19    1.455   298.98
2383.19    1.466   297.72
2393.19    1.478   296.48
2403.19    1.488   295.26
2413.19    1.499   294.05
2423.19    1.509   292.87
2433.19    1.518   291.70
2443.19    1.527   290.54
2453.19    1.536   289.39
2463.19    1.544   288.26
2473.19    1.551   287.14
2483.19    1.558   286.03
2493.19    1.564   284.93
2503.19    1.570   283.83
2513.19    1.574   282.75
2523.19    1.578   281.67
2533.19    1.581   280.59
2543.19    1.583   279.52






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 16:05:43



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