Double Star Calculator - Orbit

Orbital Elements for HU751

WDS:	HU751	WDS ID/Discoverer
P:	262.000	Orbital period (years)
a:	0.36	Semi-major axis (arcseconds)
i:	68.8	Inclination (degrees)
Ω:	135.2	Longitude of ascending node (degrees)
T:	1965.500	Epoch of periastron passage (year)
e:	0.446	Eccentricity
ω:	23.9	Longitude of periastron (degrees)
Start-Year:	1894.0	Year
End-Year:	2156.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU751
Position:	173646.25-205722.4	Epoch-2000 right ascension and declination
WDS-ID:	17368-2057	WDS designation
Discoverer Code:	HU751	Discover designation and components
ADS number:	10657	Aitken Double Star catalog
HD number:	159663	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.7	Magnitude of the primary
V2:	8.9	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2022g	Reference

Double Star Orbit for HU751

WDS 6th Orbit including measures of HU751

-- 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 HU751

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.378   305.87
--------------------------
1894.00    0.245   350.57
1895.00    0.240   351.55
1896.00    0.234   352.57
1897.00    0.229   353.65
1898.00    0.224   354.77
1899.00    0.218   355.96
1900.00    0.213   357.20
1901.00    0.207   358.51
1902.00    0.202   359.89
1903.00    0.196     1.34
1904.00    0.191     2.88
1905.00    0.186     4.50
1906.00    0.181     6.21
1907.00    0.176     8.03
1908.00    0.171     9.94
1909.00    0.166    11.97
1910.00    0.162    14.12
1911.00    0.157    16.39
1912.00    0.153    18.80
1913.00    0.149    21.33
1914.00    0.145    24.01
1915.00    0.141    26.82
1916.00    0.138    29.78
1917.00    0.135    32.87
1918.00    0.132    36.09
1919.00    0.130    39.44
1920.00    0.128    42.89
1921.00    0.127    46.43
1922.00    0.126    50.05
1923.00    0.125    53.71
1924.00    0.125    57.40
1925.00    0.125    61.09
1926.00    0.126    64.76
1927.00    0.127    68.37
1928.00    0.128    71.92
1929.00    0.130    75.37
1930.00    0.132    78.72
1931.00    0.135    81.95
1932.00    0.138    85.06
1933.00    0.141    88.03
1934.00    0.144    90.88
1935.00    0.147    93.59
1936.00    0.151    96.18
1937.00    0.155    98.64
1938.00    0.159   100.99
1939.00    0.163   103.22
1940.00    0.167   105.35
1941.00    0.170   107.38
1942.00    0.174   109.32
1943.00    0.178   111.18
1944.00    0.182   112.96
1945.00    0.185   114.66
1946.00    0.189   116.31
1947.00    0.192   117.90
1948.00    0.195   119.43
1949.00    0.198   120.92
1950.00    0.200   122.38
1951.00    0.203   123.80
1952.00    0.204   125.19
1953.00    0.206   126.56
1954.00    0.207   127.91
1955.00    0.208   129.25
1956.00    0.208   130.58
1957.00    0.208   131.92
1958.00    0.207   133.26
1959.00    0.206   134.62
1960.00    0.204   135.99
1961.00    0.201   137.39
1962.00    0.199   138.83
1963.00    0.195   140.32
1964.00    0.191   141.86
1965.00    0.187   143.47
1966.00    0.182   145.16
1967.00    0.177   146.95
1968.00    0.171   148.85
1969.00    0.165   150.89
1970.00    0.159   153.09
1971.00    0.152   155.48
1972.00    0.145   158.09
1973.00    0.138   160.96
1974.00    0.131   164.14
1975.00    0.124   167.67
1976.00    0.118   171.61
1977.00    0.111   176.03
1978.00    0.105   180.96
1979.00    0.100   186.46
1980.00    0.095   192.55
1981.00    0.092   199.18
1982.00    0.089   206.27
1983.00    0.088   213.67
1984.00    0.088   221.18
1985.00    0.089   228.57
1986.00    0.092   235.63
1987.00    0.096   242.22
1988.00    0.100   248.24
1989.00    0.106   253.67
1990.00    0.112   258.52
1991.00    0.119   262.83
1992.00    0.126   266.66
1993.00    0.134   270.06
1994.00    0.142   273.08
1995.00    0.150   275.79
1996.00    0.158   278.21
1997.00    0.167   280.39
1998.00    0.175   282.37
1999.00    0.183   284.16
2000.00    0.192   285.80
2001.00    0.200   287.30
2002.00    0.209   288.68
2003.00    0.217   289.95
2004.00    0.225   291.14
2005.00    0.233   292.24
2006.00    0.241   293.26
2007.00    0.249   294.22
2008.00    0.257   295.13
2009.00    0.264   295.98
2010.00    0.272   296.78
2011.00    0.279   297.54
2012.00    0.287   298.26
2013.00    0.294   298.94
2014.00    0.301   299.59
2015.00    0.308   300.22
2016.00    0.315   300.81
2017.00    0.321   301.38
2018.00    0.328   301.93
2019.00    0.334   302.46
2020.00    0.340   302.96
2021.00    0.347   303.45
2022.00    0.353   303.92
2023.00    0.359   304.38
2024.00    0.364   304.82
2025.00    0.370   305.25
2026.00    0.375   305.66
2027.00    0.381   306.07
2028.00    0.386   306.46
2029.00    0.391   306.84
2030.00    0.396   307.21
2031.00    0.401   307.57
2032.00    0.406   307.93
2033.00    0.410   308.27
2034.00    0.415   308.61
2035.00    0.419   308.94
2036.00    0.424   309.27
2037.00    0.428   309.59
2038.00    0.432   309.90
2039.00    0.436   310.21
2040.00    0.439   310.51
2041.00    0.443   310.80
2042.00    0.446   311.09
2043.00    0.450   311.38
2044.00    0.453   311.66
2045.00    0.456   311.94
2046.00    0.459   312.22
2047.00    0.462   312.49
2048.00    0.465   312.76
2049.00    0.468   313.02
2050.00    0.471   313.28
2051.00    0.473   313.54
2052.00    0.475   313.80
2053.00    0.478   314.05
2054.00    0.480   314.30
2055.00    0.482   314.55
2056.00    0.484   314.80
2057.00    0.486   315.04
2058.00    0.488   315.29
2059.00    0.489   315.53
2060.00    0.491   315.77
2061.00    0.492   316.01
2062.00    0.494   316.25
2063.00    0.495   316.48
2064.00    0.496   316.72
2065.00    0.497   316.95
2066.00    0.498   317.18
2067.00    0.499   317.42
2068.00    0.500   317.65
2069.00    0.500   317.88
2070.00    0.501   318.11
2071.00    0.501   318.34
2072.00    0.502   318.57
2073.00    0.502   318.80
2074.00    0.502   319.02
2075.00    0.502   319.25
2076.00    0.502   319.48
2077.00    0.502   319.71
2078.00    0.502   319.94
2079.00    0.501   320.17
2080.00    0.501   320.40
2081.00    0.501   320.63
2082.00    0.500   320.86
2083.00    0.499   321.09
2084.00    0.499   321.32
2085.00    0.498   321.55
2086.00    0.497   321.79
2087.00    0.496   322.02
2088.00    0.495   322.25
2089.00    0.494   322.49
2090.00    0.492   322.73
2091.00    0.491   322.97
2092.00    0.490   323.21
2093.00    0.488   323.45
2094.00    0.486   323.69
2095.00    0.485   323.93
2096.00    0.483   324.18
2097.00    0.481   324.43
2098.00    0.479   324.68
2099.00    0.477   324.93
2100.00    0.475   325.19
2101.00    0.473   325.44
2102.00    0.471   325.70
2103.00    0.468   325.96
2104.00    0.466   326.23
2105.00    0.463   326.49
2106.00    0.461   326.76
2107.00    0.458   327.04
2108.00    0.455   327.31
2109.00    0.452   327.59
2110.00    0.450   327.88
2111.00    0.447   328.16
2112.00    0.444   328.45
2113.00    0.440   328.75
2114.00    0.437   329.05
2115.00    0.434   329.35
2116.00    0.431   329.66
2117.00    0.427   329.97
2118.00    0.424   330.29
2119.00    0.420   330.62
2120.00    0.417   330.95
2121.00    0.413   331.28
2122.00    0.409   331.62
2123.00    0.405   331.97
2124.00    0.401   332.32
2125.00    0.397   332.69
2126.00    0.393   333.06
2127.00    0.389   333.43
2128.00    0.385   333.82
2129.00    0.381   334.21
2130.00    0.376   334.61
2131.00    0.372   335.02
2132.00    0.368   335.45
2133.00    0.363   335.88
2134.00    0.358   336.32
2135.00    0.354   336.77
2136.00    0.349   337.24
2137.00    0.344   337.72
2138.00    0.340   338.21
2139.00    0.335   338.72
2140.00    0.330   339.24
2141.00    0.325   339.78
2142.00    0.320   340.33
2143.00    0.315   340.91
2144.00    0.310   341.50
2145.00    0.305   342.11
2146.00    0.299   342.74
2147.00    0.294   343.40
2148.00    0.289   344.07
2149.00    0.284   344.78
2150.00    0.278   345.51
2151.00    0.273   346.27
2152.00    0.267   347.06
2153.00    0.262   347.88
2154.00    0.256   348.74
2155.00    0.251   349.64

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 17:40:53