Double Star Calculator - Orbit

Orbital Elements for COU136
WDS: COU136 WDS ID/Discoverer
P: 284.600 Orbital period (years)
a: 0.62 Semi-major axis (arcseconds)
i: 110.6 Inclination (degrees)
Ω: 35.8 Longitude of ascending node (degrees)
T: 1969.600 Epoch of periastron passage (year)
e: 0.321 Eccentricity
ω: 304.2 Longitude of periastron (degrees)
Start-Year: 1882.7 Year
End-Year: 2167.3 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU136
Position: 221002.22+230733.0 Epoch-2000 right ascension and declination
WDS-ID: 22100+2308 WDS designation
Discoverer Code: COU136 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 210444 HD catalog number
Hipparcos number: 109414 Hipparcos catalog number
V1: 9.20 Magnitude of the primary
V2: 7.56 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 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: Doc2016h Reference

Double Star Orbit for COU136



WDS 6th Orbit including measures of COU136

-- 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 COU136
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.411    10.56
--------------------------
1882.70    0.713   221.13
1883.70    0.712   220.81
1884.70    0.711   220.49
1885.70    0.710   220.17
1886.70    0.709   219.85
1887.70    0.708   219.53
1888.70    0.706   219.20
1889.70    0.704   218.88
1890.70    0.702   218.55
1891.70    0.700   218.22
1892.70    0.698   217.89
1893.70    0.695   217.56
1894.70    0.692   217.22
1895.70    0.689   216.88
1896.70    0.686   216.54
1897.70    0.683   216.19
1898.70    0.679   215.84
1899.70    0.675   215.49
1900.70    0.671   215.13
1901.70    0.667   214.77
1902.70    0.662   214.40
1903.70    0.657   214.03
1904.70    0.652   213.65
1905.70    0.647   213.27
1906.70    0.641   212.88
1907.70    0.635   212.48
1908.70    0.629   212.07
1909.70    0.623   211.66
1910.70    0.616   211.24
1911.70    0.610   210.81
1912.70    0.602   210.37
1913.70    0.595   209.91
1914.70    0.588   209.45
1915.70    0.580   208.97
1916.70    0.572   208.49
1917.70    0.563   207.98
1918.70    0.555   207.46
1919.70    0.546   206.93
1920.70    0.537   206.38
1921.70    0.527   205.80
1922.70    0.518   205.21
1923.70    0.508   204.59
1924.70    0.497   203.95
1925.70    0.487   203.28
1926.70    0.476   202.58
1927.70    0.465   201.85
1928.70    0.454   201.09
1929.70    0.443   200.28
1930.70    0.431   199.43
1931.70    0.420   198.54
1932.70    0.407   197.59
1933.70    0.395   196.59
1934.70    0.383   195.51
1935.70    0.370   194.37
1936.70    0.357   193.15
1937.70    0.345   191.83
1938.70    0.332   190.41
1939.70    0.318   188.88
1940.70    0.305   187.21
1941.70    0.292   185.39
1942.70    0.279   183.41
1943.70    0.266   181.22
1944.70    0.253   178.82
1945.70    0.240   176.16
1946.70    0.228   173.20
1947.70    0.216   169.91
1948.70    0.205   166.25
1949.70    0.194   162.18
1950.70    0.184   157.65
1951.70    0.176   152.63
1952.70    0.168   147.13
1953.70    0.162   141.17
1954.70    0.158   134.81
1955.70    0.155   128.17
1956.70    0.154   121.39
1957.70    0.156   114.64
1958.70    0.159   108.08
1959.70    0.164   101.85
1960.70    0.171    96.05
1961.70    0.178    90.72
1962.70    0.187    85.87
1963.70    0.197    81.49
1964.70    0.208    77.54
1965.70    0.219    74.00
1966.70    0.231    70.80
1967.70    0.243    67.92
1968.70    0.255    65.31
1969.70    0.268    62.94
1970.70    0.280    60.78
1971.70    0.292    58.80
1972.70    0.304    56.98
1973.70    0.316    55.29
1974.70    0.328    53.73
1975.70    0.339    52.27
1976.70    0.350    50.91
1977.70    0.361    49.63
1978.70    0.371    48.42
1979.70    0.381    47.28
1980.70    0.391    46.19
1981.70    0.400    45.15
1982.70    0.409    44.16
1983.70    0.417    43.21
1984.70    0.425    42.30
1985.70    0.432    41.42
1986.70    0.439    40.56
1987.70    0.446    39.73
1988.70    0.451    38.93
1989.70    0.457    38.14
1990.70    0.462    37.38
1991.70    0.467    36.62
1992.70    0.471    35.89
1993.70    0.474    35.16
1994.70    0.478    34.45
1995.70    0.480    33.74
1996.70    0.483    33.04
1997.70    0.485    32.35
1998.70    0.486    31.66
1999.70    0.487    30.98
2000.70    0.488    30.30
2001.70    0.489    29.62
2002.70    0.489    28.94
2003.70    0.488    28.26
2004.70    0.488    27.58
2005.70    0.487    26.89
2006.70    0.485    26.21
2007.70    0.484    25.52
2008.70    0.482    24.82
2009.70    0.480    24.12
2010.70    0.477    23.41
2011.70    0.474    22.70
2012.70    0.471    21.97
2013.70    0.468    21.24
2014.70    0.465    20.49
2015.70    0.461    19.74
2016.70    0.457    18.97
2017.70    0.453    18.19
2018.70    0.449    17.39
2019.70    0.444    16.58
2020.70    0.440    15.75
2021.70    0.435    14.90
2022.70    0.430    14.04
2023.70    0.425    13.15
2024.70    0.420    12.24
2025.70    0.415    11.32
2026.70    0.410    10.36
2027.70    0.404     9.38
2028.70    0.399     8.38
2029.70    0.393     7.35
2030.70    0.388     6.29
2031.70    0.382     5.19
2032.70    0.377     4.07
2033.70    0.371     2.91
2034.70    0.365     1.71
2035.70    0.360     0.48
2036.70    0.354   359.21
2037.70    0.349   357.90
2038.70    0.343   356.54
2039.70    0.338   355.15
2040.70    0.332   353.70
2041.70    0.327   352.21
2042.70    0.322   350.68
2043.70    0.317   349.09
2044.70    0.312   347.45
2045.70    0.307   345.76
2046.70    0.303   344.03
2047.70    0.299   342.23
2048.70    0.294   340.39
2049.70    0.290   338.50
2050.70    0.287   336.55
2051.70    0.283   334.56
2052.70    0.280   332.51
2053.70    0.277   330.43
2054.70    0.275   328.30
2055.70    0.272   326.13
2056.70    0.270   323.92
2057.70    0.269   321.69
2058.70    0.267   319.43
2059.70    0.266   317.15
2060.70    0.266   314.86
2061.70    0.265   312.56
2062.70    0.265   310.26
2063.70    0.266   307.96
2064.70    0.266   305.67
2065.70    0.268   303.39
2066.70    0.269   301.14
2067.70    0.271   298.92
2068.70    0.273   296.73
2069.70    0.275   294.57
2070.70    0.278   292.45
2071.70    0.281   290.38
2072.70    0.285   288.36
2073.70    0.288   286.38
2074.70    0.292   284.46
2075.70    0.296   282.59
2076.70    0.301   280.77
2077.70    0.305   279.00
2078.70    0.310   277.29
2079.70    0.315   275.63
2080.70    0.320   274.02
2081.70    0.326   272.47
2082.70    0.331   270.97
2083.70    0.337   269.52
2084.70    0.343   268.11
2085.70    0.348   266.75
2086.70    0.355   265.44
2087.70    0.361   264.17
2088.70    0.367   262.95
2089.70    0.373   261.77
2090.70    0.379   260.62
2091.70    0.386   259.52
2092.70    0.392   258.45
2093.70    0.399   257.41
2094.70    0.405   256.41
2095.70    0.412   255.44
2096.70    0.419   254.50
2097.70    0.425   253.59
2098.70    0.432   252.71
2099.70    0.439   251.85
2100.70    0.445   251.02
2101.70    0.452   250.22
2102.70    0.459   249.44
2103.70    0.465   248.68
2104.70    0.472   247.94
2105.70    0.478   247.22
2106.70    0.485   246.52
2107.70    0.491   245.84
2108.70    0.498   245.18
2109.70    0.504   244.53
2110.70    0.511   243.91
2111.70    0.517   243.29
2112.70    0.523   242.69
2113.70    0.530   242.11
2114.70    0.536   241.54
2115.70    0.542   240.98
2116.70    0.548   240.44
2117.70    0.554   239.90
2118.70    0.560   239.38
2119.70    0.566   238.87
2120.70    0.572   238.37
2121.70    0.577   237.88
2122.70    0.583   237.39
2123.70    0.588   236.92
2124.70    0.594   236.46
2125.70    0.599   236.00
2126.70    0.604   235.56
2127.70    0.610   235.12
2128.70    0.615   234.68
2129.70    0.620   234.26
2130.70    0.625   233.84
2131.70    0.629   233.43
2132.70    0.634   233.02
2133.70    0.639   232.62
2134.70    0.643   232.23
2135.70    0.647   231.84
2136.70    0.651   231.45
2137.70    0.656   231.07
2138.70    0.660   230.70
2139.70    0.663   230.33
2140.70    0.667   229.96
2141.70    0.671   229.60
2142.70    0.674   229.24
2143.70    0.678   228.89
2144.70    0.681   228.54
2145.70    0.684   228.19
2146.70    0.687   227.84
2147.70    0.689   227.50
2148.70    0.692   227.16
2149.70    0.695   226.82
2150.70    0.697   226.49
2151.70    0.699   226.16
2152.70    0.701   225.83
2153.70    0.703   225.50
2154.70    0.705   225.17
2155.70    0.707   224.85
2156.70    0.708   224.52
2157.70    0.709   224.20
2158.70    0.710   223.88
2159.70    0.711   223.56
2160.70    0.712   223.24
2161.70    0.713   222.92
2162.70    0.713   222.60
2163.70    0.713   222.28
2164.70    0.713   221.96
2165.70    0.713   221.64
2166.70    0.713   221.32






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 18:37:12



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