Double Star Calculator - Orbit

Orbital Elements for COU344
WDS: COU344 WDS ID/Discoverer
P: 192.720 Orbital period (years)
a: 0.239 Semi-major axis (arcseconds)
i: 137.7 Inclination (degrees)
Ω: 160.1 Longitude of ascending node (degrees)
T: 2017.490 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 236.0 Longitude of periastron (degrees)
Start-Year: 1928.64 Year
End-Year: 2121.36 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for COU344
Position: 235009.26+194000.3 Epoch-2000 right ascension and declination
WDS-ID: 23502+1940 WDS designation
Discoverer Code: COU344 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 223523 HD catalog number
Hipparcos number: 117531 Hipparcos catalog number
V1: 10.04 Magnitude of the primary
V2: 10.42 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1996 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: Msn2001a Reference

Double Star Orbit for COU344



WDS 6th Orbit including measures of COU344

-- 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 COU344
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.115   240.94
--------------------------
1928.64    0.267   105.15
1929.64    0.266   104.13
1930.64    0.264   103.10
1931.64    0.263   102.05
1932.64    0.261   101.00
1933.64    0.259    99.93
1934.64    0.258    98.85
1935.64    0.256    97.76
1936.64    0.255    96.65
1937.64    0.253    95.52
1938.64    0.251    94.39
1939.64    0.250    93.24
1940.64    0.248    92.07
1941.64    0.247    90.89
1942.64    0.245    89.69
1943.64    0.243    88.47
1944.64    0.242    87.24
1945.64    0.240    86.00
1946.64    0.238    84.73
1947.64    0.237    83.45
1948.64    0.235    82.15
1949.64    0.234    80.84
1950.64    0.232    79.50
1951.64    0.231    78.15
1952.64    0.229    76.78
1953.64    0.228    75.40
1954.64    0.226    73.99
1955.64    0.225    72.56
1956.64    0.223    71.12
1957.64    0.222    69.66
1958.64    0.220    68.18
1959.64    0.219    66.68
1960.64    0.218    65.16
1961.64    0.216    63.63
1962.64    0.215    62.07
1963.64    0.214    60.50
1964.64    0.213    58.91
1965.64    0.211    57.30
1966.64    0.210    55.68
1967.64    0.209    54.03
1968.64    0.208    52.37
1969.64    0.207    50.69
1970.64    0.206    49.00
1971.64    0.205    47.29
1972.64    0.204    45.56
1973.64    0.203    43.82
1974.64    0.202    42.06
1975.64    0.202    40.29
1976.64    0.201    38.50
1977.64    0.200    36.70
1978.64    0.199    34.88
1979.64    0.198    33.04
1980.64    0.197    31.19
1981.64    0.197    29.33
1982.64    0.196    27.45
1983.64    0.195    25.56
1984.64    0.194    23.65
1985.64    0.193    21.73
1986.64    0.193    19.78
1987.64    0.192    17.83
1988.64    0.191    15.85
1989.64    0.190    13.85
1990.64    0.189    11.84
1991.64    0.188     9.80
1992.64    0.187     7.73
1993.64    0.185     5.64
1994.64    0.184     3.52
1995.64    0.183     1.37
1996.64    0.181   359.19
1997.64    0.180   356.97
1998.64    0.178   354.70
1999.64    0.176   352.39
2000.64    0.174   350.02
2001.64    0.172   347.59
2002.64    0.169   345.10
2003.64    0.167   342.53
2004.64    0.164   339.88
2005.64    0.161   337.14
2006.64    0.158   334.29
2007.64    0.155   331.33
2008.64    0.151   328.23
2009.64    0.148   324.99
2010.64    0.144   321.58
2011.64    0.140   317.99
2012.64    0.136   314.20
2013.64    0.132   310.20
2014.64    0.129   305.96
2015.64    0.125   301.46
2016.64    0.122   296.71
2017.64    0.119   291.69
2018.64    0.116   286.42
2019.64    0.114   280.92
2020.64    0.112   275.21
2021.64    0.111   269.35
2022.64    0.110   263.40
2023.64    0.110   257.44
2024.64    0.111   251.53
2025.64    0.113   245.76
2026.64    0.115   240.18
2027.64    0.118   234.83
2028.64    0.121   229.76
2029.64    0.125   224.98
2030.64    0.129   220.49
2031.64    0.134   216.30
2032.64    0.138   212.39
2033.64    0.143   208.75
2034.64    0.149   205.35
2035.64    0.154   202.19
2036.64    0.159   199.23
2037.64    0.164   196.46
2038.64    0.170   193.86
2039.64    0.175   191.42
2040.64    0.180   189.13
2041.64    0.185   186.96
2042.64    0.190   184.90
2043.64    0.195   182.96
2044.64    0.200   181.10
2045.64    0.205   179.34
2046.64    0.209   177.65
2047.64    0.214   176.03
2048.64    0.218   174.48
2049.64    0.222   172.99
2050.64    0.227   171.56
2051.64    0.231   170.18
2052.64    0.234   168.84
2053.64    0.238   167.54
2054.64    0.242   166.28
2055.64    0.245   165.06
2056.64    0.248   163.88
2057.64    0.252   162.72
2058.64    0.255   161.59
2059.64    0.258   160.49
2060.64    0.260   159.41
2061.64    0.263   158.35
2062.64    0.266   157.32
2063.64    0.268   156.30
2064.64    0.270   155.30
2065.64    0.273   154.32
2066.64    0.275   153.36
2067.64    0.277   152.40
2068.64    0.279   151.47
2069.64    0.280   150.54
2070.64    0.282   149.62
2071.64    0.283   148.72
2072.64    0.285   147.82
2073.64    0.286   146.94
2074.64    0.287   146.06
2075.64    0.289   145.19
2076.64    0.290   144.32
2077.64    0.291   143.46
2078.64    0.292   142.61
2079.64    0.292   141.76
2080.64    0.293   140.92
2081.64    0.294   140.08
2082.64    0.294   139.24
2083.64    0.295   138.40
2084.64    0.295   137.57
2085.64    0.295   136.74
2086.64    0.295   135.91
2087.64    0.296   135.08
2088.64    0.296   134.26
2089.64    0.296   133.43
2090.64    0.296   132.60
2091.64    0.295   131.77
2092.64    0.295   130.94
2093.64    0.295   130.11
2094.64    0.295   129.28
2095.64    0.294   128.44
2096.64    0.294   127.61
2097.64    0.293   126.77
2098.64    0.293   125.92
2099.64    0.292   125.08
2100.64    0.291   124.23
2101.64    0.291   123.37
2102.64    0.290   122.51
2103.64    0.289   121.65
2104.64    0.288   120.78
2105.64    0.287   119.90
2106.64    0.286   119.02
2107.64    0.285   118.13
2108.64    0.284   117.24
2109.64    0.283   116.34
2110.64    0.282   115.43
2111.64    0.280   114.52
2112.64    0.279   113.59
2113.64    0.278   112.66
2114.64    0.277   111.72
2115.64    0.275   110.77
2116.64    0.274   109.81
2117.64    0.273   108.84
2118.64    0.271   107.86
2119.64    0.270   106.87
2120.64    0.268   105.87






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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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:55:00



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