Double Star Calculator - Orbit

Orbital Elements for HU1568
WDS: HU1568 WDS ID/Discoverer
P: 320.000 Orbital period (years)
a: 1.0281 Semi-major axis (arcseconds)
i: 109.8 Inclination (degrees)
Ω: 174.4 Longitude of ascending node (degrees)
T: 2019.186 Epoch of periastron passage (year)
e: 0.327 Eccentricity
ω: 70.3 Longitude of periastron (degrees)
Start-Year: 1865.0 Year
End-Year: 2185.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU1568
Position: 054149.29-500015.3 Epoch-2000 right ascension and declination
WDS-ID: 05418-5000 WDS designation
Discoverer Code: HU1568 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 38255 HD catalog number
Hipparcos number: 26830 Hipparcos catalog number
V1: 9.34 Magnitude of the primary
V2: 9.42 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2024c Reference

Double Star Orbit for HU1568



WDS 6th Orbit including measures of HU1568

-- 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 HU1568
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.239    92.20
--------------------------
1865.00    0.584   305.00
1866.00    0.576   303.86
1867.00    0.568   302.70
1868.00    0.560   301.50
1869.00    0.553   300.27
1870.00    0.545   299.01
1871.00    0.538   297.71
1872.00    0.531   296.38
1873.00    0.524   295.01
1874.00    0.517   293.60
1875.00    0.511   292.16
1876.00    0.504   290.68
1877.00    0.499   289.17
1878.00    0.493   287.62
1879.00    0.488   286.03
1880.00    0.482   284.42
1881.00    0.478   282.76
1882.00    0.473   281.08
1883.00    0.469   279.37
1884.00    0.465   277.62
1885.00    0.462   275.85
1886.00    0.459   274.05
1887.00    0.456   272.24
1888.00    0.454   270.40
1889.00    0.452   268.54
1890.00    0.451   266.68
1891.00    0.450   264.80
1892.00    0.449   262.91
1893.00    0.449   261.02
1894.00    0.449   259.13
1895.00    0.449   257.24
1896.00    0.450   255.36
1897.00    0.452   253.48
1898.00    0.453   251.62
1899.00    0.455   249.78
1900.00    0.458   247.95
1901.00    0.461   246.15
1902.00    0.464   244.37
1903.00    0.468   242.62
1904.00    0.472   240.89
1905.00    0.476   239.19
1906.00    0.480   237.53
1907.00    0.485   235.90
1908.00    0.491   234.30
1909.00    0.496   232.73
1910.00    0.502   231.20
1911.00    0.508   229.71
1912.00    0.514   228.25
1913.00    0.520   226.82
1914.00    0.527   225.44
1915.00    0.534   224.08
1916.00    0.541   222.76
1917.00    0.548   221.48
1918.00    0.555   220.23
1919.00    0.563   219.01
1920.00    0.570   217.82
1921.00    0.578   216.66
1922.00    0.586   215.54
1923.00    0.593   214.44
1924.00    0.601   213.38
1925.00    0.609   212.34
1926.00    0.617   211.32
1927.00    0.625   210.34
1928.00    0.633   209.38
1929.00    0.642   208.44
1930.00    0.650   207.53
1931.00    0.658   206.64
1932.00    0.666   205.77
1933.00    0.674   204.92
1934.00    0.682   204.09
1935.00    0.690   203.28
1936.00    0.698   202.49
1937.00    0.706   201.72
1938.00    0.714   200.96
1939.00    0.721   200.22
1940.00    0.729   199.50
1941.00    0.736   198.79
1942.00    0.744   198.09
1943.00    0.751   197.41
1944.00    0.758   196.74
1945.00    0.765   196.09
1946.00    0.772   195.44
1947.00    0.779   194.81
1948.00    0.786   194.19
1949.00    0.792   193.58
1950.00    0.798   192.98
1951.00    0.804   192.38
1952.00    0.810   191.80
1953.00    0.816   191.22
1954.00    0.821   190.66
1955.00    0.826   190.09
1956.00    0.831   189.54
1957.00    0.836   188.99
1958.00    0.840   188.45
1959.00    0.845   187.91
1960.00    0.849   187.38
1961.00    0.852   186.86
1962.00    0.856   186.34
1963.00    0.859   185.82
1964.00    0.861   185.30
1965.00    0.864   184.79
1966.00    0.866   184.28
1967.00    0.868   183.78
1968.00    0.869   183.27
1969.00    0.870   182.77
1970.00    0.871   182.26
1971.00    0.871   181.76
1972.00    0.871   181.26
1973.00    0.870   180.76
1974.00    0.869   180.25
1975.00    0.868   179.75
1976.00    0.866   179.24
1977.00    0.864   178.73
1978.00    0.861   178.22
1979.00    0.858   177.71
1980.00    0.854   177.19
1981.00    0.850   176.66
1982.00    0.845   176.13
1983.00    0.840   175.60
1984.00    0.834   175.06
1985.00    0.828   174.50
1986.00    0.821   173.95
1987.00    0.814   173.38
1988.00    0.806   172.80
1989.00    0.798   172.21
1990.00    0.789   171.60
1991.00    0.780   170.98
1992.00    0.769   170.35
1993.00    0.759   169.70
1994.00    0.748   169.02
1995.00    0.736   168.33
1996.00    0.723   167.62
1997.00    0.710   166.88
1998.00    0.697   166.11
1999.00    0.683   165.31
2000.00    0.668   164.47
2001.00    0.653   163.60
2002.00    0.637   162.69
2003.00    0.621   161.73
2004.00    0.605   160.71
2005.00    0.587   159.64
2006.00    0.570   158.50
2007.00    0.552   157.29
2008.00    0.533   156.00
2009.00    0.515   154.61
2010.00    0.496   153.12
2011.00    0.476   151.51
2012.00    0.457   149.76
2013.00    0.438   147.86
2014.00    0.418   145.78
2015.00    0.399   143.49
2016.00    0.379   140.97
2017.00    0.360   138.19
2018.00    0.342   135.10
2019.00    0.324   131.67
2020.00    0.307   127.85
2021.00    0.292   123.60
2022.00    0.277   118.89
2023.00    0.265   113.71
2024.00    0.254   108.05
2025.00    0.246   101.95
2026.00    0.241    95.51
2027.00    0.238    88.85
2028.00    0.238    82.12
2029.00    0.242    75.49
2030.00    0.248    69.12
2031.00    0.256    63.11
2032.00    0.267    57.55
2033.00    0.280    52.47
2034.00    0.295    47.87
2035.00    0.311    43.72
2036.00    0.329    40.00
2037.00    0.347    36.66
2038.00    0.366    33.65
2039.00    0.385    30.95
2040.00    0.405    28.50
2041.00    0.425    26.29
2042.00    0.445    24.27
2043.00    0.465    22.43
2044.00    0.485    20.75
2045.00    0.506    19.19
2046.00    0.526    17.76
2047.00    0.546    16.43
2048.00    0.565    15.20
2049.00    0.585    14.05
2050.00    0.604    12.97
2051.00    0.623    11.96
2052.00    0.642    11.01
2053.00    0.660    10.11
2054.00    0.678     9.26
2055.00    0.696     8.45
2056.00    0.713     7.68
2057.00    0.730     6.95
2058.00    0.746     6.25
2059.00    0.763     5.58
2060.00    0.778     4.94
2061.00    0.794     4.33
2062.00    0.809     3.73
2063.00    0.823     3.16
2064.00    0.837     2.61
2065.00    0.851     2.08
2066.00    0.864     1.56
2067.00    0.877     1.06
2068.00    0.890     0.57
2069.00    0.902     0.10
2070.00    0.914   359.63
2071.00    0.925   359.18
2072.00    0.936   358.74
2073.00    0.947   358.31
2074.00    0.957   357.89
2075.00    0.967   357.48
2076.00    0.976   357.08
2077.00    0.985   356.68
2078.00    0.994   356.29
2079.00    1.002   355.91
2080.00    1.010   355.54
2081.00    1.017   355.17
2082.00    1.024   354.80
2083.00    1.031   354.44
2084.00    1.038   354.08
2085.00    1.044   353.73
2086.00    1.049   353.38
2087.00    1.055   353.04
2088.00    1.060   352.70
2089.00    1.065   352.36
2090.00    1.069   352.03
2091.00    1.073   351.70
2092.00    1.077   351.37
2093.00    1.080   351.04
2094.00    1.084   350.72
2095.00    1.086   350.39
2096.00    1.089   350.07
2097.00    1.091   349.75
2098.00    1.093   349.43
2099.00    1.095   349.11
2100.00    1.096   348.80
2101.00    1.097   348.48
2102.00    1.098   348.16
2103.00    1.099   347.85
2104.00    1.099   347.53
2105.00    1.099   347.22
2106.00    1.099   346.90
2107.00    1.098   346.59
2108.00    1.097   346.27
2109.00    1.096   345.95
2110.00    1.095   345.64
2111.00    1.094   345.32
2112.00    1.092   345.00
2113.00    1.090   344.68
2114.00    1.088   344.36
2115.00    1.085   344.04
2116.00    1.083   343.71
2117.00    1.080   343.39
2118.00    1.077   343.06
2119.00    1.074   342.73
2120.00    1.070   342.40
2121.00    1.066   342.07
2122.00    1.063   341.73
2123.00    1.059   341.39
2124.00    1.054   341.05
2125.00    1.050   340.71
2126.00    1.045   340.36
2127.00    1.040   340.01
2128.00    1.035   339.66
2129.00    1.030   339.30
2130.00    1.025   338.94
2131.00    1.020   338.57
2132.00    1.014   338.21
2133.00    1.008   337.83
2134.00    1.002   337.46
2135.00    0.996   337.08
2136.00    0.990   336.69
2137.00    0.983   336.30
2138.00    0.977   335.90
2139.00    0.970   335.50
2140.00    0.963   335.09
2141.00    0.956   334.68
2142.00    0.949   334.26
2143.00    0.942   333.84
2144.00    0.935   333.40
2145.00    0.927   332.96
2146.00    0.920   332.52
2147.00    0.912   332.06
2148.00    0.904   331.60
2149.00    0.896   331.13
2150.00    0.888   330.65
2151.00    0.880   330.17
2152.00    0.872   329.67
2153.00    0.864   329.17
2154.00    0.856   328.65
2155.00    0.847   328.13
2156.00    0.839   327.59
2157.00    0.830   327.04
2158.00    0.822   326.49
2159.00    0.813   325.92
2160.00    0.804   325.33
2161.00    0.795   324.74
2162.00    0.787   324.13
2163.00    0.778   323.51
2164.00    0.769   322.87
2165.00    0.760   322.22
2166.00    0.751   321.55
2167.00    0.742   320.87
2168.00    0.733   320.17
2169.00    0.724   319.45
2170.00    0.715   318.72
2171.00    0.706   317.96
2172.00    0.697   317.19
2173.00    0.688   316.40
2174.00    0.679   315.58
2175.00    0.670   314.74
2176.00    0.661   313.89
2177.00    0.652   313.00
2178.00    0.643   312.10
2179.00    0.635   311.16
2180.00    0.626   310.21
2181.00    0.617   309.22
2182.00    0.609   308.21
2183.00    0.600   307.17
2184.00    0.592   306.10






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 15:40:11



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