Double Star Calculator - Orbit

Orbital Elements for COU1877
WDS: COU1877 WDS ID/Discoverer
P: 271.100 Orbital period (years)
a: 0.793 Semi-major axis (arcseconds)
i: 58.4 Inclination (degrees)
Ω: 156.4 Longitude of ascending node (degrees)
T: 2002.720 Epoch of periastron passage (year)
e: 0.487 Eccentricity
ω: 59.7 Longitude of periastron (degrees)
Start-Year: 1889.45 Year
End-Year: 2160.55 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU1877
Position: 065313.39+382616.9 Epoch-2000 right ascension and declination
WDS-ID: 06532+3826 WDS designation
Discoverer Code: COU1877 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 50037 HD catalog number
Hipparcos number: 33064 Hipparcos catalog number
V1: 6.47 Magnitude of the primary
V2: 8.96 Magnitude of the secondary
Equinox: Equinox
Date: 2007 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: Hrt2009 Reference

Double Star Orbit for COU1877



WDS 6th Orbit including measures of COU1877

-- 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 COU1877
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.482   314.02
--------------------------
1889.45    0.681    33.90
1890.45    0.676    34.73
1891.45    0.671    35.58
1892.45    0.665    36.43
1893.45    0.660    37.31
1894.45    0.655    38.19
1895.45    0.650    39.09
1896.45    0.645    40.00
1897.45    0.640    40.93
1898.45    0.635    41.87
1899.45    0.630    42.82
1900.45    0.625    43.79
1901.45    0.620    44.78
1902.45    0.615    45.78
1903.45    0.611    46.80
1904.45    0.606    47.83
1905.45    0.602    48.88
1906.45    0.597    49.94
1907.45    0.593    51.02
1908.45    0.589    52.12
1909.45    0.585    53.23
1910.45    0.581    54.35
1911.45    0.577    55.50
1912.45    0.573    56.65
1913.45    0.569    57.82
1914.45    0.566    59.01
1915.45    0.562    60.21
1916.45    0.559    61.43
1917.45    0.556    62.66
1918.45    0.553    63.91
1919.45    0.550    65.17
1920.45    0.547    66.44
1921.45    0.544    67.72
1922.45    0.542    69.02
1923.45    0.539    70.32
1924.45    0.537    71.64
1925.45    0.535    72.97
1926.45    0.533    74.31
1927.45    0.532    75.66
1928.45    0.530    77.02
1929.45    0.529    78.38
1930.45    0.527    79.75
1931.45    0.526    81.13
1932.45    0.525    82.51
1933.45    0.524    83.90
1934.45    0.524    85.29
1935.45    0.523    86.68
1936.45    0.523    88.08
1937.45    0.523    89.48
1938.45    0.523    90.88
1939.45    0.523    92.27
1940.45    0.523    93.67
1941.45    0.523    95.07
1942.45    0.524    96.46
1943.45    0.525    97.85
1944.45    0.525    99.24
1945.45    0.526   100.62
1946.45    0.527   102.00
1947.45    0.528   103.37
1948.45    0.529   104.74
1949.45    0.530   106.10
1950.45    0.531   107.46
1951.45    0.533   108.81
1952.45    0.534   110.15
1953.45    0.536   111.49
1954.45    0.537   112.82
1955.45    0.538   114.14
1956.45    0.540   115.46
1957.45    0.541   116.76
1958.45    0.543   118.07
1959.45    0.544   119.36
1960.45    0.545   120.65
1961.45    0.546   121.93
1962.45    0.547   123.21
1963.45    0.549   124.48
1964.45    0.549   125.75
1965.45    0.550   127.02
1966.45    0.551   128.28
1967.45    0.551   129.54
1968.45    0.552   130.79
1969.45    0.552   132.05
1970.45    0.551   133.31
1971.45    0.551   134.56
1972.45    0.550   135.82
1973.45    0.549   137.09
1974.45    0.548   138.36
1975.45    0.546   139.64
1976.45    0.544   140.93
1977.45    0.541   142.23
1978.45    0.538   143.54
1979.45    0.534   144.87
1980.45    0.530   146.22
1981.45    0.526   147.59
1982.45    0.521   148.98
1983.45    0.515   150.41
1984.45    0.508   151.87
1985.45    0.501   153.36
1986.45    0.494   154.91
1987.45    0.485   156.50
1988.45    0.476   158.16
1989.45    0.466   159.88
1990.45    0.455   161.69
1991.45    0.443   163.58
1992.45    0.431   165.58
1993.45    0.418   167.70
1994.45    0.404   169.97
1995.45    0.390   172.40
1996.45    0.374   175.02
1997.45    0.359   177.86
1998.45    0.343   180.96
1999.45    0.327   184.37
2000.45    0.311   188.14
2001.45    0.295   192.31
2002.45    0.280   196.94
2003.45    0.265   202.10
2004.45    0.252   207.81
2005.45    0.241   214.10
2006.45    0.232   220.94
2007.45    0.226   228.25
2008.45    0.222   235.88
2009.45    0.222   243.62
2010.45    0.226   251.26
2011.45    0.232   258.58
2012.45    0.241   265.44
2013.45    0.252   271.74
2014.45    0.266   277.44
2015.45    0.281   282.56
2016.45    0.297   287.14
2017.45    0.315   291.22
2018.45    0.333   294.87
2019.45    0.351   298.15
2020.45    0.370   301.09
2021.45    0.389   303.75
2022.45    0.408   306.16
2023.45    0.426   308.36
2024.45    0.445   310.37
2025.45    0.463   312.23
2026.45    0.481   313.94
2027.45    0.499   315.53
2028.45    0.517   317.01
2029.45    0.534   318.40
2030.45    0.550   319.70
2031.45    0.567   320.92
2032.45    0.583   322.08
2033.45    0.598   323.18
2034.45    0.613   324.22
2035.45    0.628   325.21
2036.45    0.642   326.16
2037.45    0.656   327.06
2038.45    0.670   327.93
2039.45    0.683   328.77
2040.45    0.695   329.58
2041.45    0.708   330.35
2042.45    0.720   331.10
2043.45    0.731   331.83
2044.45    0.742   332.53
2045.45    0.753   333.22
2046.45    0.763   333.88
2047.45    0.774   334.53
2048.45    0.783   335.16
2049.45    0.793   335.77
2050.45    0.802   336.38
2051.45    0.810   336.96
2052.45    0.819   337.54
2053.45    0.827   338.10
2054.45    0.834   338.66
2055.45    0.842   339.20
2056.45    0.849   339.74
2057.45    0.856   340.26
2058.45    0.862   340.78
2059.45    0.869   341.29
2060.45    0.875   341.79
2061.45    0.880   342.29
2062.45    0.886   342.78
2063.45    0.891   343.26
2064.45    0.896   343.74
2065.45    0.901   344.22
2066.45    0.905   344.68
2067.45    0.909   345.15
2068.45    0.913   345.61
2069.45    0.917   346.07
2070.45    0.921   346.52
2071.45    0.924   346.97
2072.45    0.927   347.41
2073.45    0.930   347.86
2074.45    0.932   348.30
2075.45    0.935   348.74
2076.45    0.937   349.17
2077.45    0.939   349.61
2078.45    0.941   350.04
2079.45    0.942   350.47
2080.45    0.944   350.90
2081.45    0.945   351.33
2082.45    0.946   351.76
2083.45    0.947   352.18
2084.45    0.948   352.61
2085.45    0.948   353.03
2086.45    0.949   353.46
2087.45    0.949   353.88
2088.45    0.949   354.31
2089.45    0.949   354.73
2090.45    0.949   355.15
2091.45    0.948   355.58
2092.45    0.948   356.01
2093.45    0.947   356.43
2094.45    0.946   356.86
2095.45    0.945   357.28
2096.45    0.944   357.71
2097.45    0.943   358.14
2098.45    0.941   358.57
2099.45    0.940   359.01
2100.45    0.938   359.44
2101.45    0.936   359.88
2102.45    0.934     0.31
2103.45    0.932     0.75
2104.45    0.930     1.19
2105.45    0.927     1.64
2106.45    0.925     2.08
2107.45    0.922     2.53
2108.45    0.920     2.98
2109.45    0.917     3.43
2110.45    0.914     3.89
2111.45    0.911     4.35
2112.45    0.908     4.81
2113.45    0.905     5.27
2114.45    0.901     5.74
2115.45    0.898     6.22
2116.45    0.895     6.69
2117.45    0.891     7.17
2118.45    0.887     7.65
2119.45    0.884     8.14
2120.45    0.880     8.63
2121.45    0.876     9.13
2122.45    0.872     9.63
2123.45    0.868    10.14
2124.45    0.863    10.65
2125.45    0.859    11.16
2126.45    0.855    11.68
2127.45    0.851    12.21
2128.45    0.846    12.74
2129.45    0.842    13.27
2130.45    0.837    13.82
2131.45    0.832    14.37
2132.45    0.828    14.92
2133.45    0.823    15.48
2134.45    0.818    16.05
2135.45    0.813    16.62
2136.45    0.808    17.21
2137.45    0.803    17.79
2138.45    0.798    18.39
2139.45    0.793    18.99
2140.45    0.788    19.61
2141.45    0.783    20.22
2142.45    0.778    20.85
2143.45    0.772    21.49
2144.45    0.767    22.13
2145.45    0.762    22.79
2146.45    0.757    23.45
2147.45    0.751    24.12
2148.45    0.746    24.80
2149.45    0.741    25.50
2150.45    0.735    26.20
2151.45    0.730    26.91
2152.45    0.725    27.63
2153.45    0.719    28.37
2154.45    0.714    29.11
2155.45    0.708    29.87
2156.45    0.703    30.63
2157.45    0.698    31.41
2158.45    0.692    32.20
2159.45    0.687    33.01
2160.45    0.682    33.82






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 15:52:23



www.stella-vega.de