Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:29:47

Orbital Elements for COU307
WDS: COU307 WDS ID/Discoverer
P: 300.000 Orbital period (years)
a: 0.597 Semi-major axis (arcseconds)
i: 117.6 Inclination (degrees)
Ω: 59.1 Longitude of ascending node (degrees)
T: 1964.700 Epoch of periastron passage (year)
e: 0.76 Eccentricity
ω: 288.4 Longitude of periastron (degrees)
Start-Year: 1875.0 Year
End-Year: 2175.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU307
Position: 151834.84+235642.8 Epoch-2000 right ascension and declination
WDS-ID: 15186+2356 WDS designation
Discoverer Code: COU307 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.5 Magnitude of the primary
V2: 9.6 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for COU307



WDS 6th Orbit including measures of COU307

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of COU307
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.374    348.5
-------------------------
1875.0     0.638    272.7
1876.0     0.638    272.4
1877.0     0.638    272.1
1878.0     0.638    271.8
1879.0     0.638    271.5
1880.0     0.637    271.1
1881.0     0.637    270.8
1882.0     0.637    270.5
1883.0     0.636    270.2
1884.0     0.636    269.9
1885.0     0.635    269.6
1886.0     0.634    269.2
1887.0     0.634    268.9
1888.0     0.633    268.6
1889.0     0.632    268.3
1890.0     0.631    267.9
1891.0     0.630    267.6
1892.0     0.629    267.3
1893.0     0.628    267.0
1894.0     0.626    266.6
1895.0     0.625    266.3
1896.0     0.624    266.0
1897.0     0.622    265.7
1898.0     0.621    265.3
1899.0     0.619    265.0
1900.0     0.617    264.6
1901.0     0.615    264.3
1902.0     0.613    264.0
1903.0     0.611    263.6
1904.0     0.609    263.3
1905.0     0.607    262.9
1906.0     0.605    262.6
1907.0     0.602    262.2
1908.0     0.600    261.9
1909.0     0.597    261.5
1910.0     0.594    261.1
1911.0     0.591    260.8
1912.0     0.588    260.4
1913.0     0.585    260.0
1914.0     0.582    259.7
1915.0     0.578    259.3
1916.0     0.575    258.9
1917.0     0.571    258.5
1918.0     0.567    258.1
1919.0     0.563    257.7
1920.0     0.559    257.3
1921.0     0.555    256.9
1922.0     0.550    256.4
1923.0     0.546    256.0
1924.0     0.541    255.6
1925.0     0.536    255.1
1926.0     0.531    254.7
1927.0     0.525    254.2
1928.0     0.520    253.8
1929.0     0.514    253.3
1930.0     0.508    252.8
1931.0     0.502    252.3
1932.0     0.495    251.8
1933.0     0.489    251.2
1934.0     0.481    250.7
1935.0     0.474    250.1
1936.0     0.467    249.5
1937.0     0.459    248.9
1938.0     0.450    248.3
1939.0     0.442    247.7
1940.0     0.433    247.0
1941.0     0.423    246.3
1942.0     0.414    245.5
1943.0     0.403    244.8
1944.0     0.393    244.0
1945.0     0.382    243.1
1946.0     0.370    242.2
1947.0     0.358    241.2
1948.0     0.345    240.2
1949.0     0.331    239.0
1950.0     0.317    237.8
1951.0     0.302    236.5
1952.0     0.286    235.0
1953.0     0.269    233.3
1954.0     0.251    231.4
1955.0     0.233    229.2
1956.0     0.213    226.6
1957.0     0.192    223.5
1958.0     0.170    219.5
1959.0     0.147    214.4
1960.0     0.124    207.3
1961.0     0.101    197.0
1962.0     0.082    181.3
1963.0     0.069    157.9
1964.0     0.070    130.3
1965.0     0.082    107.4
1966.0     0.102     91.8
1967.0     0.123     81.5
1968.0     0.144     74.2
1969.0     0.163     68.7
1970.0     0.180     64.4
1971.0     0.196     60.7
1972.0     0.210     57.6
1973.0     0.222     54.9
1974.0     0.233     52.4
1975.0     0.243     50.1
1976.0     0.252     48.0
1977.0     0.260     46.0
1978.0     0.267     44.2
1979.0     0.273     42.4
1980.0     0.279     40.7
1981.0     0.284     39.1
1982.0     0.289     37.5
1983.0     0.293     36.0
1984.0     0.297     34.5
1985.0     0.301     33.1
1986.0     0.304     31.7
1987.0     0.307     30.3
1988.0     0.310     29.0
1989.0     0.313     27.6
1990.0     0.316     26.3
1991.0     0.318     25.0
1992.0     0.321     23.8
1993.0     0.323     22.5
1994.0     0.325     21.3
1995.0     0.327     20.1
1996.0     0.329     18.9
1997.0     0.330     17.7
1998.0     0.332     16.5
1999.0     0.334     15.4
2000.0     0.336     14.2
2001.0     0.337     13.1
2002.0     0.339     12.0
2003.0     0.340     10.8
2004.0     0.342      9.7
2005.0     0.343      8.6
2006.0     0.345      7.6
2007.0     0.346      6.5
2008.0     0.348      5.4
2009.0     0.349      4.3
2010.0     0.351      3.3
2011.0     0.352      2.2
2012.0     0.354      1.2
2013.0     0.355      0.2
2014.0     0.357    359.2
2015.0     0.358    358.2
2016.0     0.360    357.2
2017.0     0.361    356.2
2018.0     0.363    355.2
2019.0     0.364    354.2
2020.0     0.366    353.2
2021.0     0.367    352.3
2022.0     0.369    351.3
2023.0     0.371    350.4
2024.0     0.372    349.5
2025.0     0.374    348.5
2026.0     0.376    347.6
2027.0     0.377    346.7
2028.0     0.379    345.8
2029.0     0.381    344.9
2030.0     0.383    344.0
2031.0     0.384    343.2
2032.0     0.386    342.3
2033.0     0.388    341.4
2034.0     0.390    340.6
2035.0     0.392    339.7
2036.0     0.394    338.9
2037.0     0.395    338.1
2038.0     0.397    337.3
2039.0     0.399    336.4
2040.0     0.401    335.6
2041.0     0.403    334.8
2042.0     0.405    334.1
2043.0     0.407    333.3
2044.0     0.409    332.5
2045.0     0.412    331.7
2046.0     0.414    331.0
2047.0     0.416    330.2
2048.0     0.418    329.5
2049.0     0.420    328.8
2050.0     0.422    328.0
2051.0     0.424    327.3
2052.0     0.426    326.6
2053.0     0.429    325.9
2054.0     0.431    325.2
2055.0     0.433    324.5
2056.0     0.435    323.8
2057.0     0.438    323.2
2058.0     0.440    322.5
2059.0     0.442    321.8
2060.0     0.444    321.2
2061.0     0.447    320.5
2062.0     0.449    319.9
2063.0     0.451    319.2
2064.0     0.454    318.6
2065.0     0.456    318.0
2066.0     0.458    317.4
2067.0     0.461    316.8
2068.0     0.463    316.2
2069.0     0.465    315.6
2070.0     0.468    315.0
2071.0     0.470    314.4
2072.0     0.472    313.8
2073.0     0.475    313.2
2074.0     0.477    312.7
2075.0     0.479    312.1
2076.0     0.482    311.5
2077.0     0.484    311.0
2078.0     0.486    310.4
2079.0     0.489    309.9
2080.0     0.491    309.4
2081.0     0.494    308.8
2082.0     0.496    308.3
2083.0     0.498    307.8
2084.0     0.501    307.3
2085.0     0.503    306.8
2086.0     0.505    306.2
2087.0     0.508    305.7
2088.0     0.510    305.2
2089.0     0.512    304.8
2090.0     0.515    304.3
2091.0     0.517    303.8
2092.0     0.519    303.3
2093.0     0.522    302.8
2094.0     0.524    302.4
2095.0     0.526    301.9
2096.0     0.528    301.4
2097.0     0.531    301.0
2098.0     0.533    300.5
2099.0     0.535    300.1
2100.0     0.537    299.6
2101.0     0.540    299.2
2102.0     0.542    298.7
2103.0     0.544    298.3
2104.0     0.546    297.9
2105.0     0.548    297.4
2106.0     0.551    297.0
2107.0     0.553    296.6
2108.0     0.555    296.2
2109.0     0.557    295.7
2110.0     0.559    295.3
2111.0     0.561    294.9
2112.0     0.563    294.5
2113.0     0.565    294.1
2114.0     0.567    293.7
2115.0     0.569    293.3
2116.0     0.571    292.9
2117.0     0.573    292.5
2118.0     0.575    292.1
2119.0     0.577    291.7
2120.0     0.579    291.3
2121.0     0.581    291.0
2122.0     0.583    290.6
2123.0     0.585    290.2
2124.0     0.586    289.8
2125.0     0.588    289.5
2126.0     0.590    289.1
2127.0     0.592    288.7
2128.0     0.594    288.4
2129.0     0.595    288.0
2130.0     0.597    287.6
2131.0     0.599    287.3
2132.0     0.600    286.9
2133.0     0.602    286.5
2134.0     0.603    286.2
2135.0     0.605    285.8
2136.0     0.607    285.5
2137.0     0.608    285.1
2138.0     0.609    284.8
2139.0     0.611    284.4
2140.0     0.612    284.1
2141.0     0.614    283.8
2142.0     0.615    283.4
2143.0     0.616    283.1
2144.0     0.618    282.7
2145.0     0.619    282.4
2146.0     0.620    282.1
2147.0     0.621    281.7
2148.0     0.622    281.4
2149.0     0.624    281.1
2150.0     0.625    280.7
2151.0     0.626    280.4
2152.0     0.627    280.1
2153.0     0.628    279.8
2154.0     0.629    279.4
2155.0     0.630    279.1
2156.0     0.630    278.8
2157.0     0.631    278.5
2158.0     0.632    278.1
2159.0     0.633    277.8
2160.0     0.633    277.5
2161.0     0.634    277.2
2162.0     0.635    276.8
2163.0     0.635    276.5
2164.0     0.636    276.2
2165.0     0.636    275.9
2166.0     0.637    275.6
2167.0     0.637    275.3
2168.0     0.637    274.9
2169.0     0.638    274.6
2170.0     0.638    274.3
2171.0     0.638    274.0
2172.0     0.638    273.7
2173.0     0.638    273.4
2174.0     0.638    273.0






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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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