Double Star Calculator - Orbit

Orbital Elements for BU799AB
WDS: BU799AB WDS ID/Discoverer
P: 1658.838 Orbital period (years)
a: 4.64697 Semi-major axis (arcseconds)
i: 85.899 Inclination (degrees)
Ω: 94.885 Longitude of ascending node (degrees)
T: 2118.325 Epoch of periastron passage (year)
e: 0.83747 Eccentricity
ω: 247.108 Longitude of periastron (degrees)
Start-Year: 1195.5810999999999 Year
End-Year: 2854.4189 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU799AB
Position: 130449.78+730129.8 Epoch-2000 right ascension and declination
WDS-ID: 13048+7302 WDS designation
Discoverer Code: BU799AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 113889 HD catalog number
Hipparcos number: 63822 Hipparcos catalog number
V1: 6.60 Magnitude of the primary
V2: 8.45 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: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for BU799AB



WDS 6th Orbit including measures of BU799AB

-- 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 BU799AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.407   267.64
--------------------------
1195.58    3.776   103.16
1205.58    3.736   103.29
1215.58    3.695   103.42
1225.58    3.653   103.56
1235.58    3.610   103.70
1245.58    3.567   103.84
1255.58    3.522   103.98
1265.58    3.477   104.13
1275.58    3.431   104.29
1285.58    3.384   104.44
1295.58    3.337   104.61
1305.58    3.289   104.77
1315.58    3.240   104.95
1325.58    3.190   105.12
1335.58    3.140   105.31
1345.58    3.089   105.49
1355.58    3.037   105.69
1365.58    2.985   105.89
1375.58    2.932   106.10
1385.58    2.878   106.32
1395.58    2.824   106.54
1405.58    2.769   106.78
1415.58    2.713   107.02
1425.58    2.657   107.28
1435.58    2.600   107.54
1445.58    2.543   107.82
1455.58    2.485   108.11
1465.58    2.426   108.41
1475.58    2.367   108.73
1485.58    2.308   109.06
1495.58    2.248   109.42
1505.58    2.187   109.79
1515.58    2.126   110.18
1525.58    2.064   110.60
1535.58    2.002   111.05
1545.58    1.940   111.52
1555.58    1.877   112.02
1565.58    1.814   112.56
1575.58    1.750   113.13
1585.58    1.686   113.76
1595.58    1.622   114.42
1605.58    1.558   115.15
1615.58    1.493   115.94
1625.58    1.428   116.80
1635.58    1.363   117.74
1645.58    1.298   118.77
1655.58    1.233   119.92
1665.58    1.168   121.19
1675.58    1.103   122.61
1685.58    1.039   124.21
1695.58    0.975   126.02
1705.58    0.912   128.08
1715.58    0.849   130.45
1725.58    0.789   133.18
1735.58    0.729   136.37
1745.58    0.673   140.10
1755.58    0.619   144.50
1765.58    0.569   149.71
1775.58    0.525   155.86
1785.58    0.487   163.04
1795.58    0.458   171.28
1805.58    0.439   180.43
1815.58    0.432   190.13
1825.58    0.437   199.86
1835.58    0.454   209.12
1845.58    0.482   217.51
1855.58    0.518   224.85
1865.58    0.562   231.16
1875.58    0.610   236.51
1885.58    0.663   241.04
1895.58    0.718   244.89
1905.58    0.775   248.18
1915.58    0.834   251.02
1925.58    0.893   253.48
1935.58    0.953   255.63
1945.58    1.012   257.53
1955.58    1.070   259.22
1965.58    1.127   260.74
1975.58    1.182   262.11
1985.58    1.235   263.37
1995.58    1.284   264.52
2005.58    1.330   265.60
2015.58    1.370   266.60
2025.58    1.405   267.55
2035.58    1.431   268.46
2045.58    1.446   269.35
2055.58    1.446   270.22
2065.58    1.427   271.10
2075.58    1.380   272.03
2085.58    1.290   273.05
2095.58    1.134   274.29
2105.58    0.868   276.11
2115.58    0.441   280.69
2125.58    0.129    68.56
2135.58    0.654    90.06
2145.58    1.102    92.56
2155.58    1.473    93.68
2165.58    1.785    94.38
2175.58    2.053    94.88
2185.58    2.286    95.26
2195.58    2.492    95.59
2205.58    2.676    95.86
2215.58    2.842    96.10
2225.58    2.992    96.32
2235.58    3.128    96.51
2245.58    3.252    96.69
2255.58    3.366    96.86
2265.58    3.471    97.01
2275.58    3.567    97.16
2285.58    3.656    97.30
2295.58    3.737    97.44
2305.58    3.813    97.57
2315.58    3.883    97.69
2325.58    3.947    97.81
2335.58    4.006    97.92
2345.58    4.061    98.04
2355.58    4.111    98.15
2365.58    4.158    98.25
2375.58    4.200    98.36
2385.58    4.239    98.46
2395.58    4.274    98.56
2405.58    4.306    98.66
2415.58    4.335    98.76
2425.58    4.362    98.86
2435.58    4.385    98.95
2445.58    4.406    99.05
2455.58    4.424    99.14
2465.58    4.439    99.24
2475.58    4.452    99.33
2485.58    4.463    99.42
2495.58    4.472    99.51
2505.58    4.479    99.60
2515.58    4.484    99.69
2525.58    4.486    99.79
2535.58    4.487    99.88
2545.58    4.486    99.97
2555.58    4.483   100.06
2565.58    4.479   100.15
2575.58    4.473   100.24
2585.58    4.465   100.33
2595.58    4.456   100.42
2605.58    4.445   100.52
2615.58    4.433   100.61
2625.58    4.419   100.70
2635.58    4.404   100.80
2645.58    4.387   100.89
2655.58    4.369   100.99
2665.58    4.350   101.08
2675.58    4.329   101.18
2685.58    4.308   101.28
2695.58    4.285   101.38
2705.58    4.261   101.48
2715.58    4.235   101.58
2725.58    4.209   101.68
2735.58    4.181   101.79
2745.58    4.153   101.89
2755.58    4.123   102.00
2765.58    4.092   102.11
2775.58    4.060   102.22
2785.58    4.028   102.33
2795.58    3.994   102.44
2805.58    3.959   102.56
2815.58    3.923   102.68
2825.58    3.887   102.80
2835.58    3.849   102.92
2845.58    3.811   103.05






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 16:52:29



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