Double Star Calculator - Orbit

Orbital Elements for HU1290
WDS: HU1290 WDS ID/Discoverer
P: 294.940 Orbital period (years)
a: 0.4755 Semi-major axis (arcseconds)
i: 120.35 Inclination (degrees)
Ω: 110.45 Longitude of ascending node (degrees)
T: 1985.026 Epoch of periastron passage (year)
e: 0.2567 Eccentricity
ω: 80.56 Longitude of periastron (degrees)
Start-Year: 1877.53 Year
End-Year: 2172.47 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU1290
Position: 180521.36+621558.6 Epoch-2000 right ascension and declination
WDS-ID: 18054+6216 WDS designation
Discoverer Code: HU1290 Discover designation and components
ADS number: 11073 Aitken Double Star catalog
HD number: 166206 HD catalog number
Hipparcos number: 88592 Hipparcos catalog number
V1: 9.29 Magnitude of the primary
V2: 9.73 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1953 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: Pop2000a Reference

Double Star Orbit for HU1290



WDS 6th Orbit including measures of HU1290

-- 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 HU1290
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.400   301.68
--------------------------
1877.53    0.339   162.67
1878.53    0.342   161.51
1879.53    0.345   160.36
1880.53    0.347   159.24
1881.53    0.350   158.13
1882.53    0.353   157.04
1883.53    0.356   155.96
1884.53    0.359   154.91
1885.53    0.362   153.87
1886.53    0.365   152.85
1887.53    0.368   151.84
1888.53    0.370   150.85
1889.53    0.373   149.88
1890.53    0.376   148.92
1891.53    0.379   147.97
1892.53    0.382   147.04
1893.53    0.385   146.13
1894.53    0.388   145.23
1895.53    0.391   144.34
1896.53    0.394   143.46
1897.53    0.396   142.60
1898.53    0.399   141.75
1899.53    0.402   140.91
1900.53    0.405   140.08
1901.53    0.407   139.26
1902.53    0.410   138.45
1903.53    0.412   137.66
1904.53    0.415   136.87
1905.53    0.417   136.09
1906.53    0.420   135.32
1907.53    0.422   134.56
1908.53    0.424   133.80
1909.53    0.426   133.06
1910.53    0.428   132.32
1911.53    0.430   131.59
1912.53    0.432   130.86
1913.53    0.434   130.14
1914.53    0.435   129.43
1915.53    0.437   128.72
1916.53    0.438   128.01
1917.53    0.439   127.31
1918.53    0.441   126.62
1919.53    0.442   125.92
1920.53    0.443   125.24
1921.53    0.443   124.55
1922.53    0.444   123.86
1923.53    0.445   123.18
1924.53    0.445   122.50
1925.53    0.445   121.82
1926.53    0.445   121.14
1927.53    0.445   120.46
1928.53    0.445   119.78
1929.53    0.445   119.10
1930.53    0.444   118.42
1931.53    0.444   117.73
1932.53    0.443   117.05
1933.53    0.442   116.36
1934.53    0.440   115.67
1935.53    0.439   114.97
1936.53    0.438   114.27
1937.53    0.436   113.56
1938.53    0.434   112.85
1939.53    0.432   112.13
1940.53    0.429   111.40
1941.53    0.427   110.67
1942.53    0.424   109.92
1943.53    0.421   109.17
1944.53    0.418   108.40
1945.53    0.415   107.63
1946.53    0.412   106.84
1947.53    0.408   106.04
1948.53    0.404   105.22
1949.53    0.400   104.38
1950.53    0.395   103.53
1951.53    0.391   102.66
1952.53    0.386   101.77
1953.53    0.381   100.85
1954.53    0.376    99.91
1955.53    0.371    98.95
1956.53    0.365    97.95
1957.53    0.360    96.93
1958.53    0.354    95.87
1959.53    0.348    94.77
1960.53    0.342    93.64
1961.53    0.335    92.46
1962.53    0.329    91.24
1963.53    0.322    89.96
1964.53    0.315    88.63
1965.53    0.308    87.25
1966.53    0.301    85.79
1967.53    0.294    84.27
1968.53    0.287    82.67
1969.53    0.280    80.99
1970.53    0.272    79.22
1971.53    0.265    77.35
1972.53    0.258    75.38
1973.53    0.251    73.29
1974.53    0.243    71.08
1975.53    0.236    68.74
1976.53    0.230    66.25
1977.53    0.223    63.62
1978.53    0.217    60.83
1979.53    0.211    57.88
1980.53    0.205    54.76
1981.53    0.200    51.46
1982.53    0.195    48.00
1983.53    0.191    44.37
1984.53    0.187    40.59
1985.53    0.184    36.67
1986.53    0.182    32.64
1987.53    0.180    28.52
1988.53    0.179    24.34
1989.53    0.179    20.14
1990.53    0.180    15.95
1991.53    0.181    11.81
1992.53    0.183     7.75
1993.53    0.186     3.80
1994.53    0.190   359.98
1995.53    0.194   356.31
1996.53    0.198   352.80
1997.53    0.204   349.47
1998.53    0.209   346.30
1999.53    0.215   343.31
2000.53    0.222   340.49
2001.53    0.228   337.82
2002.53    0.235   335.31
2003.53    0.242   332.94
2004.53    0.249   330.71
2005.53    0.257   328.60
2006.53    0.264   326.62
2007.53    0.272   324.74
2008.53    0.279   322.96
2009.53    0.287   321.28
2010.53    0.294   319.68
2011.53    0.302   318.16
2012.53    0.309   316.71
2013.53    0.316   315.33
2014.53    0.324   314.02
2015.53    0.331   312.76
2016.53    0.338   311.55
2017.53    0.345   310.39
2018.53    0.351   309.28
2019.53    0.358   308.21
2020.53    0.365   307.18
2021.53    0.371   306.18
2022.53    0.377   305.22
2023.53    0.383   304.29
2024.53    0.389   303.38
2025.53    0.395   302.50
2026.53    0.400   301.65
2027.53    0.406   300.82
2028.53    0.411   300.01
2029.53    0.416   299.22
2030.53    0.421   298.45
2031.53    0.425   297.70
2032.53    0.430   296.96
2033.53    0.434   296.24
2034.53    0.438   295.53
2035.53    0.442   294.84
2036.53    0.446   294.15
2037.53    0.449   293.48
2038.53    0.453   292.82
2039.53    0.456   292.16
2040.53    0.459   291.52
2041.53    0.462   290.88
2042.53    0.465   290.26
2043.53    0.467   289.63
2044.53    0.469   289.02
2045.53    0.472   288.41
2046.53    0.474   287.81
2047.53    0.475   287.21
2048.53    0.477   286.61
2049.53    0.479   286.02
2050.53    0.480   285.44
2051.53    0.481   284.85
2052.53    0.482   284.27
2053.53    0.483   283.69
2054.53    0.484   283.12
2055.53    0.485   282.54
2056.53    0.485   281.97
2057.53    0.485   281.40
2058.53    0.486   280.83
2059.53    0.486   280.26
2060.53    0.486   279.68
2061.53    0.485   279.11
2062.53    0.485   278.54
2063.53    0.485   277.97
2064.53    0.484   277.39
2065.53    0.483   276.82
2066.53    0.483   276.24
2067.53    0.482   275.66
2068.53    0.481   275.08
2069.53    0.479   274.49
2070.53    0.478   273.90
2071.53    0.477   273.31
2072.53    0.475   272.72
2073.53    0.474   272.12
2074.53    0.472   271.52
2075.53    0.470   270.91
2076.53    0.468   270.30
2077.53    0.467   269.68
2078.53    0.465   269.06
2079.53    0.462   268.43
2080.53    0.460   267.80
2081.53    0.458   267.16
2082.53    0.456   266.51
2083.53    0.453   265.86
2084.53    0.451   265.20
2085.53    0.448   264.53
2086.53    0.446   263.86
2087.53    0.443   263.18
2088.53    0.440   262.49
2089.53    0.437   261.79
2090.53    0.435   261.08
2091.53    0.432   260.36
2092.53    0.429   259.63
2093.53    0.426   258.89
2094.53    0.423   258.14
2095.53    0.420   257.38
2096.53    0.417   256.61
2097.53    0.414   255.83
2098.53    0.410   255.04
2099.53    0.407   254.23
2100.53    0.404   253.41
2101.53    0.401   252.58
2102.53    0.398   251.74
2103.53    0.394   250.88
2104.53    0.391   250.00
2105.53    0.388   249.11
2106.53    0.385   248.21
2107.53    0.382   247.29
2108.53    0.378   246.36
2109.53    0.375   245.41
2110.53    0.372   244.44
2111.53    0.369   243.46
2112.53    0.366   242.46
2113.53    0.362   241.44
2114.53    0.359   240.41
2115.53    0.356   239.36
2116.53    0.353   238.28
2117.53    0.350   237.19
2118.53    0.347   236.09
2119.53    0.344   234.96
2120.53    0.342   233.81
2121.53    0.339   232.65
2122.53    0.336   231.47
2123.53    0.333   230.26
2124.53    0.331   229.04
2125.53    0.328   227.80
2126.53    0.326   226.54
2127.53    0.324   225.27
2128.53    0.321   223.97
2129.53    0.319   222.66
2130.53    0.317   221.33
2131.53    0.315   219.98
2132.53    0.313   218.62
2133.53    0.312   217.24
2134.53    0.310   215.84
2135.53    0.309   214.44
2136.53    0.307   213.02
2137.53    0.306   211.58
2138.53    0.305   210.14
2139.53    0.304   208.68
2140.53    0.303   207.22
2141.53    0.302   205.74
2142.53    0.302   204.27
2143.53    0.301   202.78
2144.53    0.301   201.29
2145.53    0.300   199.80
2146.53    0.300   198.31
2147.53    0.300   196.81
2148.53    0.301   195.32
2149.53    0.301   193.83
2150.53    0.301   192.34
2151.53    0.302   190.86
2152.53    0.303   189.38
2153.53    0.303   187.92
2154.53    0.304   186.46
2155.53    0.305   185.01
2156.53    0.307   183.57
2157.53    0.308   182.14
2158.53    0.309   180.72
2159.53    0.311   179.32
2160.53    0.313   177.94
2161.53    0.314   176.56
2162.53    0.316   175.21
2163.53    0.318   173.87
2164.53    0.320   172.54
2165.53    0.322   171.24
2166.53    0.325   169.95
2167.53    0.327   168.68
2168.53    0.329   167.43
2169.53    0.332   166.19
2170.53    0.334   164.98
2171.53    0.337   163.78






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 17:47:19



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