Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:03:40

Orbital Elements for BU916
WDS: BU916 WDS ID/Discoverer
P: 1386.460 Orbital period (years)
a: 1.177 Semi-major axis (arcseconds)
i: 45.2 Inclination (degrees)
Ω: 143.7 Longitude of ascending node (degrees)
T: 1991.780 Epoch of periastron passage (year)
e: 0.787 Eccentricity
ω: 350.2 Longitude of periastron (degrees)
Start-Year: 1332.0 Year
End-Year: 2718.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU916
Position: 111403.66-152607.1 Epoch-2000 right ascension and declination
WDS-ID: 11141-1526 WDS designation
Discoverer Code: BU916 Discover designation and components
ADS number: 8096 Aitken Double Star catalog
HD number: 97635 HD catalog number
Hipparcos number: 54866 Hipparcos catalog number
V1: 8.20 Magnitude of the primary
V2: 9.35 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2004 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for BU916



WDS 6th Orbit including measures of BU916

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of BU916
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.298    209.5
-------------------------
1332.0     2.089    318.0
1342.0     2.088    318.3
1352.0     2.087    318.7
1362.0     2.084    319.0
1372.0     2.081    319.4
1382.0     2.078    319.8
1392.0     2.073    320.1
1402.0     2.068    320.5
1412.0     2.062    320.9
1422.0     2.056    321.2
1432.0     2.048    321.6
1442.0     2.041    322.0
1452.0     2.032    322.3
1462.0     2.023    322.7
1472.0     2.012    323.1
1482.0     2.002    323.5
1492.0     1.990    323.9
1502.0     1.978    324.3
1512.0     1.965    324.7
1522.0     1.951    325.1
1532.0     1.936    325.5
1542.0     1.921    325.9
1552.0     1.905    326.4
1562.0     1.888    326.8
1572.0     1.870    327.2
1582.0     1.851    327.7
1592.0     1.831    328.1
1602.0     1.811    328.6
1612.0     1.790    329.1
1622.0     1.768    329.6
1632.0     1.744    330.1
1642.0     1.720    330.6
1652.0     1.695    331.2
1662.0     1.669    331.7
1672.0     1.642    332.3
1682.0     1.614    332.9
1692.0     1.585    333.5
1702.0     1.555    334.1
1712.0     1.524    334.8
1722.0     1.491    335.5
1732.0     1.458    336.2
1742.0     1.423    336.9
1752.0     1.387    337.7
1762.0     1.349    338.6
1772.0     1.310    339.5
1782.0     1.270    340.4
1792.0     1.228    341.4
1802.0     1.185    342.5
1812.0     1.140    343.6
1822.0     1.093    344.9
1832.0     1.045    346.2
1842.0     0.995    347.8
1852.0     0.943    349.4
1862.0     0.889    351.3
1872.0     0.833    353.4
1882.0     0.774    355.8
1892.0     0.714    358.6
1902.0     0.651      2.0
1912.0     0.586      6.1
1922.0     0.519     11.2
1932.0     0.452     17.9
1942.0     0.385     26.9
1952.0     0.322     39.6
1962.0     0.269     57.8
1972.0     0.239     82.5
1982.0     0.236    110.7
1992.0     0.249    137.3
2002.0     0.259    161.4
2012.0     0.269    183.9
2022.0     0.290    204.1
2032.0     0.323    220.9
2042.0     0.366    234.2
2052.0     0.417    244.4
2062.0     0.470    252.4
2072.0     0.525    258.8
2082.0     0.581    263.9
2092.0     0.636    268.1
2102.0     0.690    271.7
2112.0     0.743    274.7
2122.0     0.795    277.4
2132.0     0.845    279.7
2142.0     0.894    281.8
2152.0     0.942    283.6
2162.0     0.988    285.3
2172.0     1.033    286.9
2182.0     1.077    288.3
2192.0     1.120    289.6
2202.0     1.161    290.8
2212.0     1.201    291.9
2222.0     1.240    292.9
2232.0     1.278    293.9
2242.0     1.314    294.8
2252.0     1.350    295.7
2262.0     1.385    296.6
2272.0     1.418    297.4
2282.0     1.451    298.1
2292.0     1.482    298.8
2302.0     1.513    299.5
2312.0     1.542    300.2
2322.0     1.571    300.9
2332.0     1.599    301.5
2342.0     1.626    302.1
2352.0     1.652    302.7
2362.0     1.677    303.2
2372.0     1.701    303.8
2382.0     1.725    304.3
2392.0     1.748    304.8
2402.0     1.769    305.3
2412.0     1.791    305.8
2422.0     1.811    306.3
2432.0     1.830    306.8
2442.0     1.849    307.2
2452.0     1.867    307.7
2462.0     1.885    308.1
2472.0     1.901    308.6
2482.0     1.917    309.0
2492.0     1.932    309.4
2502.0     1.946    309.8
2512.0     1.960    310.3
2522.0     1.973    310.7
2532.0     1.985    311.1
2542.0     1.997    311.5
2552.0     2.008    311.8
2562.0     2.018    312.2
2572.0     2.027    312.6
2582.0     2.036    313.0
2592.0     2.044    313.4
2602.0     2.052    313.7
2612.0     2.059    314.1
2622.0     2.065    314.5
2632.0     2.070    314.8
2642.0     2.075    315.2
2652.0     2.079    315.6
2662.0     2.083    315.9
2672.0     2.085    316.3
2682.0     2.087    316.7
2692.0     2.089    317.0
2702.0     2.090    317.4
2712.0     2.090    317.7






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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