Double Star Calculator - Orbit

Orbital Elements for KU39
WDS: KU39 WDS ID/Discoverer
P: 278.800 Orbital period (years)
a: 2.14 Semi-major axis (arcseconds)
i: 50.1 Inclination (degrees)
Ω: 142.8 Longitude of ascending node (degrees)
T: 1743.800 Epoch of periastron passage (year)
e: 0.65 Eccentricity
ω: 62.5 Longitude of periastron (degrees)
Start-Year: 1885.6 Year
End-Year: 2164.4 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for KU39
Position: 113724.61+472744.8 Epoch-2000 right ascension and declination
WDS-ID: 11374+4728 WDS designation
Discoverer Code: KU39 Discover designation and components
ADS number: 8242 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 56685 Hipparcos catalog number
V1: 10.68 Magnitude of the primary
V2: 11.16 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2005 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: WSI2006b Reference

Double Star Orbit for KU39



WDS 6th Orbit including measures of KU39

-- 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 KU39
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.508   236.86
--------------------------
1885.60    2.569    14.78
1886.60    2.562    15.22
1887.60    2.554    15.66
1888.60    2.546    16.10
1889.60    2.538    16.55
1890.60    2.529    17.00
1891.60    2.521    17.45
1892.60    2.513    17.90
1893.60    2.504    18.36
1894.60    2.495    18.82
1895.60    2.486    19.29
1896.60    2.477    19.76
1897.60    2.468    20.23
1898.60    2.459    20.70
1899.60    2.449    21.18
1900.60    2.440    21.66
1901.60    2.430    22.15
1902.60    2.421    22.64
1903.60    2.411    23.13
1904.60    2.401    23.63
1905.60    2.391    24.13
1906.60    2.381    24.64
1907.60    2.370    25.15
1908.60    2.360    25.67
1909.60    2.350    26.19
1910.60    2.339    26.71
1911.60    2.329    27.24
1912.60    2.318    27.77
1913.60    2.307    28.31
1914.60    2.296    28.86
1915.60    2.285    29.41
1916.60    2.274    29.96
1917.60    2.263    30.52
1918.60    2.252    31.09
1919.60    2.241    31.66
1920.60    2.230    32.23
1921.60    2.218    32.82
1922.60    2.207    33.41
1923.60    2.195    34.00
1924.60    2.184    34.60
1925.60    2.172    35.21
1926.60    2.160    35.82
1927.60    2.149    36.45
1928.60    2.137    37.07
1929.60    2.125    37.71
1930.60    2.113    38.35
1931.60    2.101    39.00
1932.60    2.089    39.66
1933.60    2.077    40.32
1934.60    2.065    40.99
1935.60    2.053    41.67
1936.60    2.041    42.36
1937.60    2.029    43.06
1938.60    2.017    43.76
1939.60    2.005    44.47
1940.60    1.992    45.20
1941.60    1.980    45.93
1942.60    1.968    46.67
1943.60    1.956    47.41
1944.60    1.944    48.17
1945.60    1.931    48.94
1946.60    1.919    49.72
1947.60    1.907    50.51
1948.60    1.895    51.30
1949.60    1.882    52.11
1950.60    1.870    52.93
1951.60    1.858    53.76
1952.60    1.846    54.60
1953.60    1.834    55.45
1954.60    1.821    56.32
1955.60    1.809    57.19
1956.60    1.797    58.08
1957.60    1.785    58.98
1958.60    1.773    59.89
1959.60    1.761    60.81
1960.60    1.749    61.75
1961.60    1.737    62.69
1962.60    1.725    63.66
1963.60    1.713    64.63
1964.60    1.701    65.62
1965.60    1.690    66.62
1966.60    1.678    67.64
1967.60    1.666    68.67
1968.60    1.654    69.72
1969.60    1.643    70.78
1970.60    1.631    71.85
1971.60    1.620    72.94
1972.60    1.608    74.05
1973.60    1.597    75.17
1974.60    1.585    76.31
1975.60    1.574    77.47
1976.60    1.562    78.64
1977.60    1.551    79.83
1978.60    1.539    81.04
1979.60    1.528    82.26
1980.60    1.517    83.51
1981.60    1.505    84.77
1982.60    1.494    86.05
1983.60    1.483    87.35
1984.60    1.471    88.68
1985.60    1.460    90.02
1986.60    1.448    91.38
1987.60    1.436    92.77
1988.60    1.424    94.18
1989.60    1.413    95.61
1990.60    1.400    97.07
1991.60    1.388    98.55
1992.60    1.376   100.06
1993.60    1.363   101.60
1994.60    1.350   103.16
1995.60    1.336   104.76
1996.60    1.323   106.39
1997.60    1.308   108.06
1998.60    1.294   109.76
1999.60    1.278   111.50
2000.60    1.262   113.29
2001.60    1.246   115.12
2002.60    1.228   117.01
2003.60    1.209   118.95
2004.60    1.190   120.95
2005.60    1.169   123.02
2006.60    1.147   125.17
2007.60    1.124   127.41
2008.60    1.098   129.74
2009.60    1.071   132.19
2010.60    1.042   134.77
2011.60    1.011   137.50
2012.60    0.978   140.42
2013.60    0.942   143.55
2014.60    0.904   146.93
2015.60    0.862   150.63
2016.60    0.819   154.71
2017.60    0.773   159.26
2018.60    0.726   164.39
2019.60    0.678   170.25
2020.60    0.631   176.99
2021.60    0.587   184.78
2022.60    0.549   193.74
2023.60    0.519   203.89
2024.60    0.502   215.00
2025.60    0.498   226.58
2026.60    0.510   237.98
2027.60    0.535   248.58
2028.60    0.572   258.01
2029.60    0.618   266.17
2030.60    0.670   273.14
2031.60    0.726   279.06
2032.60    0.784   284.13
2033.60    0.844   288.48
2034.60    0.903   292.27
2035.60    0.962   295.58
2036.60    1.021   298.52
2037.60    1.078   301.13
2038.60    1.134   303.49
2039.60    1.189   305.63
2040.60    1.243   307.58
2041.60    1.294   309.37
2042.60    1.345   311.02
2043.60    1.394   312.56
2044.60    1.441   314.00
2045.60    1.487   315.34
2046.60    1.532   316.61
2047.60    1.575   317.80
2048.60    1.617   318.93
2049.60    1.657   320.01
2050.60    1.697   321.03
2051.60    1.735   322.01
2052.60    1.772   322.95
2053.60    1.808   323.85
2054.60    1.842   324.72
2055.60    1.876   325.55
2056.60    1.909   326.35
2057.60    1.940   327.13
2058.60    1.971   327.89
2059.60    2.001   328.62
2060.60    2.030   329.33
2061.60    2.058   330.02
2062.60    2.085   330.69
2063.60    2.111   331.34
2064.60    2.137   331.98
2065.60    2.162   332.61
2066.60    2.186   333.22
2067.60    2.209   333.81
2068.60    2.232   334.40
2069.60    2.254   334.97
2070.60    2.275   335.53
2071.60    2.295   336.09
2072.60    2.315   336.63
2073.60    2.335   337.16
2074.60    2.353   337.69
2075.60    2.371   338.20
2076.60    2.389   338.71
2077.60    2.406   339.21
2078.60    2.422   339.71
2079.60    2.438   340.20
2080.60    2.454   340.68
2081.60    2.468   341.15
2082.60    2.483   341.62
2083.60    2.497   342.09
2084.60    2.510   342.55
2085.60    2.523   343.00
2086.60    2.535   343.45
2087.60    2.547   343.90
2088.60    2.559   344.34
2089.60    2.570   344.78
2090.60    2.581   345.22
2091.60    2.591   345.65
2092.60    2.601   346.07
2093.60    2.610   346.50
2094.60    2.619   346.92
2095.60    2.628   347.34
2096.60    2.636   347.76
2097.60    2.644   348.17
2098.60    2.652   348.58
2099.60    2.659   348.99
2100.60    2.666   349.40
2101.60    2.673   349.80
2102.60    2.679   350.20
2103.60    2.685   350.60
2104.60    2.690   351.00
2105.60    2.695   351.40
2106.60    2.700   351.80
2107.60    2.705   352.19
2108.60    2.709   352.58
2109.60    2.713   352.98
2110.60    2.717   353.37
2111.60    2.720   353.76
2112.60    2.723   354.15
2113.60    2.726   354.53
2114.60    2.728   354.92
2115.60    2.731   355.31
2116.60    2.733   355.70
2117.60    2.734   356.08
2118.60    2.736   356.47
2119.60    2.737   356.85
2120.60    2.738   357.24
2121.60    2.738   357.62
2122.60    2.739   358.00
2123.60    2.739   358.39
2124.60    2.739   358.77
2125.60    2.739   359.16
2126.60    2.738   359.54
2127.60    2.737   359.93
2128.60    2.736     0.31
2129.60    2.735     0.70
2130.60    2.733     1.08
2131.60    2.732     1.47
2132.60    2.730     1.86
2133.60    2.728     2.24
2134.60    2.725     2.63
2135.60    2.723     3.02
2136.60    2.720     3.41
2137.60    2.717     3.80
2138.60    2.714     4.19
2139.60    2.710     4.58
2140.60    2.707     4.97
2141.60    2.703     5.37
2142.60    2.699     5.76
2143.60    2.695     6.16
2144.60    2.691     6.56
2145.60    2.686     6.96
2146.60    2.681     7.36
2147.60    2.676     7.76
2148.60    2.671     8.16
2149.60    2.666     8.57
2150.60    2.661     8.97
2151.60    2.655     9.38
2152.60    2.649     9.79
2153.60    2.643    10.20
2154.60    2.637    10.61
2155.60    2.631    11.03
2156.60    2.625    11.45
2157.60    2.618    11.87
2158.60    2.611    12.29
2159.60    2.604    12.71
2160.60    2.597    13.14
2161.60    2.590    13.57
2162.60    2.583    14.00
2163.60    2.576    14.43






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 16:40:06



www.stella-vega.de