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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:57:31

Orbital Elements for HU66BC
WDS: HU66BC WDS ID/Discoverer
P: 1378.139 Orbital period (years)
a: 1.843 Semi-major axis (arcseconds)
i: 100.869 Inclination (degrees)
Ω: 33.576 Longitude of ascending node (degrees)
T: 1957.425 Epoch of periastron passage (year)
e: 0.49722 Eccentricity
ω: 347.155 Longitude of periastron (degrees)
Start-Year: 1336.0 Year
End-Year: 2714.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU66BC
Position: 182518.20+484542.5 Epoch-2000 right ascension and declination
WDS-ID: 18253+4846 WDS designation
Discoverer Code: HU66BC Discover designation and components
ADS number: 11344 Aitken Double Star catalog
HD number: 170109B HD catalog number
Hipparcos number: 90284 Hipparcos catalog number
V1: 8.40 Magnitude of the primary
V2: 8.25 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HU66BC



WDS 6th Orbit including measures of HU66BC

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


Ephemeris of HU66BC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.815     24.0
-------------------------
1336.0     2.726    214.7
1346.0     2.724    214.5
1356.0     2.721    214.3
1366.0     2.715    214.1
1376.0     2.709    213.9
1386.0     2.700    213.7
1396.0     2.690    213.5
1406.0     2.678    213.3
1416.0     2.664    213.1
1426.0     2.648    212.9
1436.0     2.631    212.7
1446.0     2.612    212.5
1456.0     2.590    212.3
1466.0     2.568    212.1
1476.0     2.543    211.8
1486.0     2.516    211.6
1496.0     2.487    211.4
1506.0     2.457    211.1
1516.0     2.424    210.9
1526.0     2.389    210.6
1536.0     2.353    210.4
1546.0     2.314    210.1
1556.0     2.274    209.8
1566.0     2.231    209.6
1576.0     2.186    209.3
1586.0     2.139    209.0
1596.0     2.090    208.6
1606.0     2.038    208.3
1616.0     1.985    207.9
1626.0     1.929    207.5
1636.0     1.871    207.1
1646.0     1.810    206.7
1656.0     1.748    206.3
1666.0     1.683    205.8
1676.0     1.615    205.2
1686.0     1.545    204.7
1696.0     1.473    204.0
1706.0     1.399    203.3
1716.0     1.322    202.5
1726.0     1.242    201.6
1736.0     1.161    200.6
1746.0     1.077    199.5
1756.0     0.991    198.1
1766.0     0.903    196.5
1776.0     0.813    194.5
1786.0     0.722    192.0
1796.0     0.630    188.9
1806.0     0.538    184.6
1816.0     0.449    178.6
1826.0     0.365    169.7
1836.0     0.292    155.9
1846.0     0.244    135.2
1856.0     0.238    109.3
1866.0     0.275     86.6
1876.0     0.342     71.0
1886.0     0.422     60.9
1896.0     0.506     54.1
1906.0     0.590     49.2
1916.0     0.670     45.6
1926.0     0.743     42.7
1936.0     0.807     40.2
1946.0     0.860     38.2
1956.0     0.900     36.3
1966.0     0.926     34.6
1976.0     0.938     32.9
1986.0     0.936     31.2
1996.0     0.921     29.6
2006.0     0.894     27.8
2016.0     0.856     25.9
2026.0     0.810     23.8
2036.0     0.757     21.4
2046.0     0.698     18.7
2056.0     0.635     15.4
2066.0     0.571     11.4
2076.0     0.506      6.4
2086.0     0.443    359.9
2096.0     0.385    351.3
2106.0     0.337    340.1
2116.0     0.304    325.7
2126.0     0.293    309.2
2136.0     0.305    292.7
2146.0     0.339    278.6
2156.0     0.389    267.5
2166.0     0.448    259.2
2176.0     0.514    252.8
2186.0     0.583    248.0
2196.0     0.655    244.2
2206.0     0.727    241.1
2216.0     0.799    238.7
2226.0     0.872    236.6
2236.0     0.944    234.8
2246.0     1.015    233.3
2256.0     1.085    232.0
2266.0     1.154    230.8
2276.0     1.222    229.8
2286.0     1.289    228.9
2296.0     1.355    228.0
2306.0     1.419    227.3
2316.0     1.481    226.6
2326.0     1.543    225.9
2336.0     1.603    225.4
2346.0     1.661    224.8
2356.0     1.718    224.3
2366.0     1.773    223.8
2376.0     1.827    223.4
2386.0     1.880    223.0
2396.0     1.931    222.6
2406.0     1.980    222.2
2416.0     2.028    221.8
2426.0     2.074    221.5
2436.0     2.119    221.1
2446.0     2.162    220.8
2456.0     2.203    220.5
2466.0     2.243    220.2
2476.0     2.282    219.9
2486.0     2.318    219.7
2496.0     2.354    219.4
2506.0     2.387    219.1
2516.0     2.420    218.9
2526.0     2.450    218.6
2536.0     2.479    218.4
2546.0     2.506    218.2
2556.0     2.532    217.9
2566.0     2.556    217.7
2576.0     2.579    217.5
2586.0     2.600    217.3
2596.0     2.619    217.1
2606.0     2.637    216.9
2616.0     2.653    216.7
2626.0     2.668    216.5
2636.0     2.681    216.2
2646.0     2.692    216.0
2656.0     2.702    215.8
2666.0     2.710    215.7
2676.0     2.716    215.5
2686.0     2.721    215.3
2696.0     2.724    215.1
2706.0     2.726    214.9






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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