Double Star Calculator - Orbit

Orbital Elements for COU1006
WDS: COU1006 WDS ID/Discoverer
P: 187.771 Orbital period (years)
a: 0.6275 Semi-major axis (arcseconds)
i: 37.6 Inclination (degrees)
Ω: 14.4 Longitude of ascending node (degrees)
T: 1988.741 Epoch of periastron passage (year)
e: 0.298 Eccentricity
ω: 230.0 Longitude of periastron (degrees)
Start-Year: 1931.1145 Year
End-Year: 2118.8855 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU1006
Position: 181258.00+331753.9 Epoch-2000 right ascension and declination
WDS-ID: 18130+3318 WDS designation
Discoverer Code: COU1006 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 89268 Hipparcos catalog number
V1: 9.23 Magnitude of the primary
V2: 11.29 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 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: Cve2022 Reference

Double Star Orbit for COU1006



WDS 6th Orbit including measures of COU1006

-- 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 COU1006
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.607   355.67
--------------------------
1931.11    0.581   107.26
1932.11    0.578   108.96
1933.11    0.575   110.67
1934.11    0.572   112.41
1935.11    0.570   114.16
1936.11    0.567   115.93
1937.11    0.564   117.71
1938.11    0.562   119.51
1939.11    0.559   121.33
1940.11    0.557   123.16
1941.11    0.555   125.01
1942.11    0.553   126.87
1943.11    0.551   128.75
1944.11    0.549   130.64
1945.11    0.547   132.54
1946.11    0.545   134.45
1947.11    0.544   136.38
1948.11    0.542   138.31
1949.11    0.541   140.26
1950.11    0.539   142.22
1951.11    0.538   144.19
1952.11    0.536   146.17
1953.11    0.535   148.16
1954.11    0.534   150.15
1955.11    0.532   152.16
1956.11    0.531   154.19
1957.11    0.529   156.22
1958.11    0.528   158.26
1959.11    0.526   160.31
1960.11    0.525   162.38
1961.11    0.523   164.46
1962.11    0.521   166.56
1963.11    0.519   168.67
1964.11    0.517   170.80
1965.11    0.514   172.95
1966.11    0.512   175.12
1967.11    0.509   177.31
1968.11    0.506   179.53
1969.11    0.502   181.78
1970.11    0.499   184.05
1971.11    0.495   186.37
1972.11    0.491   188.72
1973.11    0.486   191.11
1974.11    0.482   193.54
1975.11    0.477   196.03
1976.11    0.471   198.58
1977.11    0.465   201.18
1978.11    0.460   203.85
1979.11    0.453   206.59
1980.11    0.447   209.40
1981.11    0.440   212.31
1982.11    0.434   215.30
1983.11    0.427   218.38
1984.11    0.420   221.57
1985.11    0.413   224.86
1986.11    0.406   228.27
1987.11    0.400   231.79
1988.11    0.393   235.42
1989.11    0.387   239.17
1990.11    0.382   243.03
1991.11    0.377   247.00
1992.11    0.372   251.07
1993.11    0.369   255.23
1994.11    0.366   259.46
1995.11    0.364   263.74
1996.11    0.363   268.06
1997.11    0.363   272.39
1998.11    0.364   276.70
1999.11    0.366   280.98
2000.11    0.369   285.20
2001.11    0.373   289.34
2002.11    0.378   293.38
2003.11    0.384   297.31
2004.11    0.391   301.11
2005.11    0.398   304.79
2006.11    0.406   308.32
2007.11    0.414   311.72
2008.11    0.423   314.97
2009.11    0.433   318.09
2010.11    0.443   321.07
2011.11    0.453   323.92
2012.11    0.463   326.65
2013.11    0.473   329.26
2014.11    0.484   331.75
2015.11    0.494   334.14
2016.11    0.505   336.43
2017.11    0.515   338.62
2018.11    0.526   340.73
2019.11    0.536   342.76
2020.11    0.546   344.71
2021.11    0.556   346.59
2022.11    0.566   348.40
2023.11    0.576   350.15
2024.11    0.586   351.84
2025.11    0.595   353.48
2026.11    0.604   355.07
2027.11    0.613   356.61
2028.11    0.621   358.11
2029.11    0.630   359.57
2030.11    0.638     0.99
2031.11    0.646     2.37
2032.11    0.653     3.73
2033.11    0.661     5.05
2034.11    0.668     6.34
2035.11    0.674     7.61
2036.11    0.681     8.86
2037.11    0.687    10.08
2038.11    0.693    11.28
2039.11    0.698    12.46
2040.11    0.704    13.62
2041.11    0.709    14.76
2042.11    0.714    15.89
2043.11    0.718    17.01
2044.11    0.722    18.11
2045.11    0.726    19.19
2046.11    0.730    20.27
2047.11    0.734    21.34
2048.11    0.737    22.39
2049.11    0.740    23.44
2050.11    0.743    24.48
2051.11    0.745    25.51
2052.11    0.747    26.54
2053.11    0.749    27.56
2054.11    0.751    28.57
2055.11    0.753    29.58
2056.11    0.754    30.59
2057.11    0.755    31.59
2058.11    0.756    32.59
2059.11    0.756    33.59
2060.11    0.757    34.59
2061.11    0.757    35.58
2062.11    0.757    36.58
2063.11    0.757    37.58
2064.11    0.757    38.57
2065.11    0.756    39.57
2066.11    0.755    40.57
2067.11    0.754    41.57
2068.11    0.753    42.58
2069.11    0.752    43.59
2070.11    0.750    44.60
2071.11    0.749    45.61
2072.11    0.747    46.64
2073.11    0.745    47.66
2074.11    0.743    48.69
2075.11    0.741    49.73
2076.11    0.738    50.77
2077.11    0.736    51.82
2078.11    0.733    52.88
2079.11    0.731    53.95
2080.11    0.728    55.02
2081.11    0.725    56.10
2082.11    0.722    57.19
2083.11    0.718    58.30
2084.11    0.715    59.41
2085.11    0.712    60.53
2086.11    0.708    61.66
2087.11    0.705    62.80
2088.11    0.701    63.96
2089.11    0.697    65.13
2090.11    0.694    66.31
2091.11    0.690    67.50
2092.11    0.686    68.71
2093.11    0.682    69.93
2094.11    0.678    71.16
2095.11    0.674    72.41
2096.11    0.670    73.68
2097.11    0.666    74.96
2098.11    0.662    76.26
2099.11    0.657    77.57
2100.11    0.653    78.90
2101.11    0.649    80.25
2102.11    0.645    81.61
2103.11    0.641    82.99
2104.11    0.637    84.39
2105.11    0.633    85.81
2106.11    0.628    87.24
2107.11    0.624    88.70
2108.11    0.620    90.17
2109.11    0.617    91.67
2110.11    0.613    93.18
2111.11    0.609    94.71
2112.11    0.605    96.26
2113.11    0.601    97.83
2114.11    0.598    99.42
2115.11    0.594   101.03
2116.11    0.591   102.65
2117.11    0.587   104.30
2118.11    0.584   105.96






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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 17:49:22



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