Double Star Calculator - Orbit

Orbital Elements for HU739
WDS: HU739 WDS ID/Discoverer
P: 307.776 Orbital period (years)
a: 2.21493 Semi-major axis (arcseconds)
i: 108.714 Inclination (degrees)
Ω: 175.908 Longitude of ascending node (degrees)
T: 1934.669 Epoch of periastron passage (year)
e: 0.34805 Eccentricity
ω: 174.739 Longitude of periastron (degrees)
Start-Year: 1871.11185 Year
End-Year: 2178.8881499999998 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU739
Position: 130615.40+204345.1 Epoch-2000 right ascension and declination
WDS-ID: 13063+2044 WDS designation
Discoverer Code: HU739 Discover designation and components
ADS number: 8778 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 63942 Hipparcos catalog number
V1: 9.72 Magnitude of the primary
V2: 12.11 Magnitude of the secondary
Equinox: Equinox
Date: 2010 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 HU739



WDS 6th Orbit including measures of HU739

-- 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 HU739
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.940   194.22
--------------------------
1871.11    1.287   146.40
1872.11    1.250   145.32
1873.11    1.214   144.19
1874.11    1.177   142.98
1875.11    1.140   141.69
1876.11    1.104   140.32
1877.11    1.067   138.85
1878.11    1.031   137.29
1879.11    0.995   135.60
1880.11    0.960   133.80
1881.11    0.926   131.86
1882.11    0.892   129.76
1883.11    0.858   127.51
1884.11    0.826   125.07
1885.11    0.795   122.45
1886.11    0.766   119.61
1887.11    0.738   116.55
1888.11    0.712   113.27
1889.11    0.688   109.74
1890.11    0.666   105.97
1891.11    0.647   101.96
1892.11    0.631    97.73
1893.11    0.618    93.31
1894.11    0.609    88.72
1895.11    0.603    84.02
1896.11    0.601    79.26
1897.11    0.603    74.50
1898.11    0.609    69.79
1899.11    0.618    65.19
1900.11    0.630    60.75
1901.11    0.645    56.50
1902.11    0.664    52.47
1903.11    0.685    48.67
1904.11    0.708    45.11
1905.11    0.733    41.78
1906.11    0.760    38.68
1907.11    0.788    35.80
1908.11    0.817    33.11
1909.11    0.847    30.62
1910.11    0.878    28.30
1911.11    0.909    26.14
1912.11    0.941    24.12
1913.11    0.972    22.23
1914.11    1.004    20.46
1915.11    1.035    18.80
1916.11    1.066    17.24
1917.11    1.096    15.76
1918.11    1.126    14.36
1919.11    1.155    13.04
1920.11    1.183    11.77
1921.11    1.210    10.57
1922.11    1.236     9.41
1923.11    1.261     8.31
1924.11    1.285     7.24
1925.11    1.307     6.21
1926.11    1.328     5.22
1927.11    1.347     4.25
1928.11    1.365     3.31
1929.11    1.381     2.40
1930.11    1.395     1.50
1931.11    1.408     0.62
1932.11    1.419   359.76
1933.11    1.428   358.91
1934.11    1.435   358.07
1935.11    1.441   357.23
1936.11    1.444   356.40
1937.11    1.446   355.58
1938.11    1.446   354.75
1939.11    1.444   353.92
1940.11    1.440   353.09
1941.11    1.434   352.26
1942.11    1.427   351.42
1943.11    1.418   350.56
1944.11    1.407   349.70
1945.11    1.394   348.82
1946.11    1.380   347.92
1947.11    1.365   347.01
1948.11    1.348   346.07
1949.11    1.329   345.10
1950.11    1.309   344.11
1951.11    1.288   343.09
1952.11    1.266   342.03
1953.11    1.242   340.93
1954.11    1.218   339.79
1955.11    1.193   338.60
1956.11    1.167   337.36
1957.11    1.140   336.07
1958.11    1.112   334.71
1959.11    1.084   333.27
1960.11    1.056   331.77
1961.11    1.027   330.18
1962.11    0.999   328.49
1963.11    0.970   326.71
1964.11    0.941   324.82
1965.11    0.913   322.81
1966.11    0.885   320.67
1967.11    0.857   318.40
1968.11    0.830   315.97
1969.11    0.804   313.39
1970.11    0.780   310.63
1971.11    0.756   307.70
1972.11    0.734   304.60
1973.11    0.714   301.30
1974.11    0.696   297.83
1975.11    0.680   294.18
1976.11    0.667   290.37
1977.11    0.656   286.42
1978.11    0.648   282.36
1979.11    0.643   278.21
1980.11    0.640   274.01
1981.11    0.641   269.80
1982.11    0.646   265.63
1983.11    0.653   261.53
1984.11    0.663   257.54
1985.11    0.675   253.68
1986.11    0.691   249.97
1987.11    0.708   246.44
1988.11    0.728   243.09
1989.11    0.750   239.93
1990.11    0.774   236.96
1991.11    0.799   234.17
1992.11    0.826   231.55
1993.11    0.854   229.11
1994.11    0.883   226.82
1995.11    0.913   224.68
1996.11    0.944   222.68
1997.11    0.976   220.80
1998.11    1.008   219.05
1999.11    1.040   217.40
2000.11    1.073   215.85
2001.11    1.107   214.40
2002.11    1.141   213.03
2003.11    1.174   211.74
2004.11    1.208   210.53
2005.11    1.243   209.38
2006.11    1.277   208.29
2007.11    1.311   207.26
2008.11    1.345   206.28
2009.11    1.379   205.35
2010.11    1.413   204.46
2011.11    1.447   203.62
2012.11    1.481   202.81
2013.11    1.514   202.04
2014.11    1.548   201.31
2015.11    1.581   200.60
2016.11    1.614   199.93
2017.11    1.647   199.28
2018.11    1.679   198.65
2019.11    1.711   198.05
2020.11    1.743   197.47
2021.11    1.775   196.92
2022.11    1.806   196.38
2023.11    1.837   195.86
2024.11    1.868   195.35
2025.11    1.898   194.87
2026.11    1.928   194.40
2027.11    1.958   193.94
2028.11    1.987   193.50
2029.11    2.016   193.06
2030.11    2.045   192.65
2031.11    2.073   192.24
2032.11    2.101   191.84
2033.11    2.128   191.46
2034.11    2.155   191.08
2035.11    2.182   190.71
2036.11    2.208   190.35
2037.11    2.234   190.00
2038.11    2.260   189.66
2039.11    2.285   189.33
2040.11    2.309   189.00
2041.11    2.334   188.68
2042.11    2.357   188.37
2043.11    2.381   188.06
2044.11    2.404   187.76
2045.11    2.426   187.46
2046.11    2.449   187.17
2047.11    2.470   186.89
2048.11    2.492   186.61
2049.11    2.512   186.33
2050.11    2.533   186.06
2051.11    2.553   185.79
2052.11    2.572   185.53
2053.11    2.591   185.27
2054.11    2.610   185.02
2055.11    2.628   184.76
2056.11    2.646   184.52
2057.11    2.663   184.27
2058.11    2.680   184.03
2059.11    2.697   183.79
2060.11    2.713   183.55
2061.11    2.728   183.32
2062.11    2.743   183.09
2063.11    2.758   182.86
2064.11    2.772   182.64
2065.11    2.786   182.41
2066.11    2.799   182.19
2067.11    2.812   181.97
2068.11    2.824   181.75
2069.11    2.836   181.54
2070.11    2.847   181.33
2071.11    2.858   181.11
2072.11    2.869   180.90
2073.11    2.879   180.69
2074.11    2.888   180.49
2075.11    2.897   180.28
2076.11    2.906   180.08
2077.11    2.914   179.87
2078.11    2.922   179.67
2079.11    2.929   179.47
2080.11    2.936   179.27
2081.11    2.942   179.07
2082.11    2.948   178.87
2083.11    2.953   178.67
2084.11    2.958   178.47
2085.11    2.963   178.27
2086.11    2.967   178.08
2087.11    2.970   177.88
2088.11    2.973   177.69
2089.11    2.976   177.49
2090.11    2.978   177.30
2091.11    2.980   177.10
2092.11    2.981   176.91
2093.11    2.981   176.71
2094.11    2.982   176.52
2095.11    2.981   176.33
2096.11    2.981   176.13
2097.11    2.979   175.94
2098.11    2.978   175.74
2099.11    2.975   175.55
2100.11    2.973   175.35
2101.11    2.970   175.16
2102.11    2.966   174.96
2103.11    2.962   174.77
2104.11    2.957   174.57
2105.11    2.952   174.37
2106.11    2.947   174.17
2107.11    2.941   173.97
2108.11    2.934   173.77
2109.11    2.927   173.57
2110.11    2.920   173.37
2111.11    2.912   173.17
2112.11    2.904   172.96
2113.11    2.895   172.76
2114.11    2.885   172.55
2115.11    2.875   172.34
2116.11    2.865   172.13
2117.11    2.854   171.92
2118.11    2.843   171.71
2119.11    2.831   171.50
2120.11    2.819   171.28
2121.11    2.806   171.06
2122.11    2.793   170.84
2123.11    2.779   170.62
2124.11    2.765   170.39
2125.11    2.750   170.17
2126.11    2.735   169.94
2127.11    2.719   169.70
2128.11    2.703   169.47
2129.11    2.687   169.23
2130.11    2.669   168.99
2131.11    2.652   168.75
2132.11    2.634   168.50
2133.11    2.615   168.25
2134.11    2.596   168.00
2135.11    2.577   167.74
2136.11    2.557   167.48
2137.11    2.536   167.21
2138.11    2.515   166.94
2139.11    2.494   166.66
2140.11    2.472   166.38
2141.11    2.449   166.10
2142.11    2.426   165.81
2143.11    2.403   165.51
2144.11    2.379   165.21
2145.11    2.355   164.90
2146.11    2.330   164.59
2147.11    2.305   164.27
2148.11    2.279   163.94
2149.11    2.253   163.60
2150.11    2.226   163.26
2151.11    2.199   162.91
2152.11    2.172   162.54
2153.11    2.144   162.17
2154.11    2.115   161.79
2155.11    2.086   161.40
2156.11    2.057   161.00
2157.11    2.027   160.59
2158.11    1.997   160.16
2159.11    1.966   159.72
2160.11    1.935   159.27
2161.11    1.904   158.80
2162.11    1.872   158.31
2163.11    1.840   157.81
2164.11    1.807   157.29
2165.11    1.774   156.75
2166.11    1.740   156.19
2167.11    1.707   155.61
2168.11    1.672   155.01
2169.11    1.638   154.38
2170.11    1.603   153.72
2171.11    1.568   153.04
2172.11    1.533   152.32
2173.11    1.497   151.56
2174.11    1.461   150.78
2175.11    1.425   149.95
2176.11    1.389   149.08
2177.11    1.352   148.16
2178.11    1.316   147.19






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 16:52:36



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