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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:34:53

Orbital Elements for COU540
WDS: COU540 WDS ID/Discoverer
P: 262.320 Orbital period (years)
a: 0.282 Semi-major axis (arcseconds)
i: 0.9 Inclination (degrees)
Ω: 13.5 Longitude of ascending node (degrees)
T: 1926.160 Epoch of periastron passage (year)
e: 0.285 Eccentricity
ω: 162.5 Longitude of periastron (degrees)
Start-Year: 1894.0 Year
End-Year: 2156.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU540
Position: 223422.88+262309.4 Epoch-2000 right ascension and declination
WDS-ID: 22344+2623 WDS designation
Discoverer Code: COU540 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 213919 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.9 Magnitude of the primary
V2: 9.3 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1996 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for COU540



WDS 6th Orbit including measures of COU540

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


Ephemeris of COU540
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.348    329.5
-------------------------
1894.0     0.239    102.8
1895.0     0.237    104.6
1896.0     0.236    106.5
1897.0     0.234    108.4
1898.0     0.232    110.3
1899.0     0.230    112.3
1900.0     0.228    114.3
1901.0     0.226    116.3
1902.0     0.225    118.4
1903.0     0.223    120.4
1904.0     0.221    122.6
1905.0     0.220    124.7
1906.0     0.218    126.9
1907.0     0.217    129.1
1908.0     0.215    131.3
1909.0     0.214    133.6
1910.0     0.213    135.9
1911.0     0.211    138.2
1912.0     0.210    140.6
1913.0     0.209    143.0
1914.0     0.208    145.4
1915.0     0.207    147.8
1916.0     0.206    150.2
1917.0     0.205    152.7
1918.0     0.205    155.2
1919.0     0.204    157.7
1920.0     0.203    160.2
1921.0     0.203    162.8
1922.0     0.202    165.3
1923.0     0.202    167.9
1924.0     0.202    170.4
1925.0     0.202    173.0
1926.0     0.202    175.6
1927.0     0.202    178.2
1928.0     0.202    180.7
1929.0     0.202    183.3
1930.0     0.202    185.9
1931.0     0.203    188.4
1932.0     0.203    191.0
1933.0     0.204    193.5
1934.0     0.204    196.0
1935.0     0.205    198.5
1936.0     0.206    201.0
1937.0     0.207    203.4
1938.0     0.208    205.9
1939.0     0.209    208.3
1940.0     0.210    210.7
1941.0     0.211    213.0
1942.0     0.212    215.4
1943.0     0.214    217.7
1944.0     0.215    219.9
1945.0     0.216    222.2
1946.0     0.218    224.4
1947.0     0.219    226.6
1948.0     0.221    228.7
1949.0     0.223    230.9
1950.0     0.224    233.0
1951.0     0.226    235.0
1952.0     0.228    237.1
1953.0     0.229    239.1
1954.0     0.231    241.0
1955.0     0.233    243.0
1956.0     0.235    244.9
1957.0     0.237    246.8
1958.0     0.239    248.6
1959.0     0.241    250.4
1960.0     0.243    252.2
1961.0     0.245    254.0
1962.0     0.247    255.7
1963.0     0.249    257.4
1964.0     0.251    259.1
1965.0     0.253    260.8
1966.0     0.255    262.4
1967.0     0.257    264.0
1968.0     0.259    265.6
1969.0     0.261    267.1
1970.0     0.263    268.7
1971.0     0.265    270.2
1972.0     0.267    271.6
1973.0     0.269    273.1
1974.0     0.271    274.6
1975.0     0.273    276.0
1976.0     0.274    277.4
1977.0     0.276    278.7
1978.0     0.278    280.1
1979.0     0.280    281.4
1980.0     0.282    282.8
1981.0     0.284    284.1
1982.0     0.286    285.4
1983.0     0.288    286.6
1984.0     0.290    287.9
1985.0     0.292    289.1
1986.0     0.294    290.3
1987.0     0.295    291.5
1988.0     0.297    292.7
1989.0     0.299    293.9
1990.0     0.301    295.1
1991.0     0.302    296.2
1992.0     0.304    297.4
1993.0     0.306    298.5
1994.0     0.308    299.6
1995.0     0.309    300.7
1996.0     0.311    301.8
1997.0     0.312    302.9
1998.0     0.314    303.9
1999.0     0.316    305.0
2000.0     0.317    306.0
2001.0     0.319    307.1
2002.0     0.320    308.1
2003.0     0.322    309.1
2004.0     0.323    310.1
2005.0     0.325    311.1
2006.0     0.326    312.1
2007.0     0.327    313.1
2008.0     0.329    314.0
2009.0     0.330    315.0
2010.0     0.331    316.0
2011.0     0.333    316.9
2012.0     0.334    317.9
2013.0     0.335    318.8
2014.0     0.336    319.7
2015.0     0.338    320.6
2016.0     0.339    321.6
2017.0     0.340    322.5
2018.0     0.341    323.4
2019.0     0.342    324.3
2020.0     0.343    325.2
2021.0     0.344    326.0
2022.0     0.345    326.9
2023.0     0.346    327.8
2024.0     0.347    328.7
2025.0     0.348    329.5
2026.0     0.349    330.4
2027.0     0.350    331.3
2028.0     0.350    332.1
2029.0     0.351    333.0
2030.0     0.352    333.8
2031.0     0.353    334.7
2032.0     0.353    335.5
2033.0     0.354    336.3
2034.0     0.355    337.2
2035.0     0.355    338.0
2036.0     0.356    338.8
2037.0     0.357    339.6
2038.0     0.357    340.5
2039.0     0.358    341.3
2040.0     0.358    342.1
2041.0     0.359    342.9
2042.0     0.359    343.7
2043.0     0.359    344.5
2044.0     0.360    345.3
2045.0     0.360    346.1
2046.0     0.361    347.0
2047.0     0.361    347.8
2048.0     0.361    348.6
2049.0     0.361    349.4
2050.0     0.362    350.2
2051.0     0.362    351.0
2052.0     0.362    351.8
2053.0     0.362    352.6
2054.0     0.362    353.4
2055.0     0.362    354.2
2056.0     0.362    355.0
2057.0     0.362    355.7
2058.0     0.362    356.5
2059.0     0.362    357.3
2060.0     0.362    358.1
2061.0     0.362    358.9
2062.0     0.362    359.7
2063.0     0.362      0.5
2064.0     0.362      1.3
2065.0     0.362      2.1
2066.0     0.361      2.9
2067.0     0.361      3.7
2068.0     0.361      4.5
2069.0     0.360      5.3
2070.0     0.360      6.1
2071.0     0.360      7.0
2072.0     0.359      7.8
2073.0     0.359      8.6
2074.0     0.358      9.4
2075.0     0.358     10.2
2076.0     0.358     11.0
2077.0     0.357     11.8
2078.0     0.356     12.7
2079.0     0.356     13.5
2080.0     0.355     14.3
2081.0     0.355     15.1
2082.0     0.354     16.0
2083.0     0.353     16.8
2084.0     0.352     17.7
2085.0     0.352     18.5
2086.0     0.351     19.3
2087.0     0.350     20.2
2088.0     0.349     21.1
2089.0     0.348     21.9
2090.0     0.348     22.8
2091.0     0.347     23.6
2092.0     0.346     24.5
2093.0     0.345     25.4
2094.0     0.344     26.3
2095.0     0.343     27.2
2096.0     0.342     28.1
2097.0     0.341     29.0
2098.0     0.339     29.9
2099.0     0.338     30.8
2100.0     0.337     31.7
2101.0     0.336     32.6
2102.0     0.335     33.5
2103.0     0.333     34.5
2104.0     0.332     35.4
2105.0     0.331     36.4
2106.0     0.330     37.3
2107.0     0.328     38.3
2108.0     0.327     39.3
2109.0     0.326     40.3
2110.0     0.324     41.3
2111.0     0.323     42.3
2112.0     0.321     43.3
2113.0     0.320     44.3
2114.0     0.318     45.3
2115.0     0.317     46.3
2116.0     0.315     47.4
2117.0     0.314     48.5
2118.0     0.312     49.5
2119.0     0.310     50.6
2120.0     0.309     51.7
2121.0     0.307     52.8
2122.0     0.305     53.9
2123.0     0.304     55.0
2124.0     0.302     56.2
2125.0     0.300     57.3
2126.0     0.298     58.5
2127.0     0.297     59.7
2128.0     0.295     60.9
2129.0     0.293     62.1
2130.0     0.291     63.3
2131.0     0.289     64.6
2132.0     0.287     65.8
2133.0     0.285     67.1
2134.0     0.284     68.4
2135.0     0.282     69.7
2136.0     0.280     71.0
2137.0     0.278     72.4
2138.0     0.276     73.7
2139.0     0.274     75.1
2140.0     0.272     76.5
2141.0     0.270     78.0
2142.0     0.268     79.4
2143.0     0.266     80.9
2144.0     0.264     82.4
2145.0     0.262     83.9
2146.0     0.260     85.4
2147.0     0.258     87.0
2148.0     0.256     88.6
2149.0     0.254     90.2
2150.0     0.252     91.8
2151.0     0.250     93.5
2152.0     0.248     95.2
2153.0     0.246     96.9
2154.0     0.244     98.6
2155.0     0.242    100.4






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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