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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:19:20

Orbital Elements for BU368AB
WDS: BU368AB WDS ID/Discoverer
P: 345.280 Orbital period (years)
a: 0.576 Semi-major axis (arcseconds)
i: 87.6 Inclination (degrees)
Ω: 270.1 Longitude of ascending node (degrees)
T: 1954.640 Epoch of periastron passage (year)
e: 0.665 Eccentricity
ω: 304.2 Longitude of periastron (degrees)
Start-Year: 1853.0 Year
End-Year: 2197.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU368AB
Position: 210726.28-081405.6 Epoch-2000 right ascension and declination
WDS-ID: 21074-0814 WDS designation
Discoverer Code: BU368AB Discover designation and components
ADS number: 14648 Aitken Double Star catalog
HD number: 201038 HD catalog number
Hipparcos number: 104272 Hipparcos catalog number
V1: 7.56 Magnitude of the primary
V2: 8.24 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU368AB



WDS 6th Orbit including measures of BU368AB

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


Ephemeris of BU368AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.032    335.7
-------------------------
1853.0     0.697     88.5
1854.0     0.697     88.5
1855.0     0.697     88.5
1856.0     0.697     88.5
1857.0     0.696     88.6
1858.0     0.696     88.6
1859.0     0.696     88.6
1860.0     0.696     88.6
1861.0     0.695     88.7
1862.0     0.695     88.7
1863.0     0.694     88.7
1864.0     0.693     88.7
1865.0     0.692     88.7
1866.0     0.692     88.8
1867.0     0.691     88.8
1868.0     0.689     88.8
1869.0     0.688     88.8
1870.0     0.687     88.9
1871.0     0.686     88.9
1872.0     0.684     88.9
1873.0     0.683     88.9
1874.0     0.681     89.0
1875.0     0.679     89.0
1876.0     0.678     89.0
1877.0     0.676     89.0
1878.0     0.674     89.0
1879.0     0.671     89.1
1880.0     0.669     89.1
1881.0     0.667     89.1
1882.0     0.664     89.1
1883.0     0.662     89.2
1884.0     0.659     89.2
1885.0     0.656     89.2
1886.0     0.653     89.2
1887.0     0.650     89.3
1888.0     0.647     89.3
1889.0     0.644     89.3
1890.0     0.640     89.3
1891.0     0.637     89.4
1892.0     0.633     89.4
1893.0     0.629     89.4
1894.0     0.625     89.5
1895.0     0.621     89.5
1896.0     0.616     89.5
1897.0     0.612     89.5
1898.0     0.607     89.6
1899.0     0.603     89.6
1900.0     0.598     89.6
1901.0     0.593     89.7
1902.0     0.587     89.7
1903.0     0.582     89.7
1904.0     0.576     89.8
1905.0     0.570     89.8
1906.0     0.564     89.8
1907.0     0.558     89.9
1908.0     0.552     89.9
1909.0     0.545     89.9
1910.0     0.538     90.0
1911.0     0.531     90.0
1912.0     0.524     90.0
1913.0     0.516     90.1
1914.0     0.509     90.1
1915.0     0.501     90.2
1916.0     0.492     90.2
1917.0     0.484     90.3
1918.0     0.475     90.3
1919.0     0.466     90.4
1920.0     0.457     90.4
1921.0     0.447     90.5
1922.0     0.437     90.5
1923.0     0.427     90.6
1924.0     0.417     90.6
1925.0     0.406     90.7
1926.0     0.394     90.8
1927.0     0.383     90.8
1928.0     0.371     90.9
1929.0     0.358     91.0
1930.0     0.346     91.1
1931.0     0.332     91.2
1932.0     0.319     91.3
1933.0     0.305     91.4
1934.0     0.290     91.5
1935.0     0.275     91.6
1936.0     0.259     91.8
1937.0     0.243     92.0
1938.0     0.227     92.2
1939.0     0.210     92.4
1940.0     0.192     92.7
1941.0     0.174     93.0
1942.0     0.155     93.4
1943.0     0.136     93.9
1944.0     0.116     94.6
1945.0     0.096     95.6
1946.0     0.075     97.1
1947.0     0.054     99.7
1948.0     0.033    105.8
1949.0     0.013    131.0
1950.0     0.014    233.7
1951.0     0.034    256.1
1952.0     0.055    261.9
1953.0     0.076    264.4
1954.0     0.096    265.9
1955.0     0.116    266.9
1956.0     0.134    267.6
1957.0     0.151    268.1
1958.0     0.167    268.5
1959.0     0.182    268.9
1960.0     0.195    269.2
1961.0     0.207    269.5
1962.0     0.218    269.7
1963.0     0.227    269.9
1964.0     0.235    270.1
1965.0     0.242    270.3
1966.0     0.248    270.5
1967.0     0.253    270.7
1968.0     0.257    270.8
1969.0     0.260    271.0
1970.0     0.263    271.2
1971.0     0.264    271.3
1972.0     0.265    271.5
1973.0     0.266    271.6
1974.0     0.266    271.8
1975.0     0.265    271.9
1976.0     0.264    272.1
1977.0     0.263    272.2
1978.0     0.261    272.4
1979.0     0.259    272.6
1980.0     0.256    272.7
1981.0     0.254    272.9
1982.0     0.251    273.1
1983.0     0.247    273.2
1984.0     0.244    273.4
1985.0     0.240    273.6
1986.0     0.236    273.8
1987.0     0.232    274.0
1988.0     0.228    274.2
1989.0     0.223    274.4
1990.0     0.219    274.6
1991.0     0.214    274.9
1992.0     0.209    275.1
1993.0     0.204    275.3
1994.0     0.199    275.6
1995.0     0.194    275.9
1996.0     0.189    276.2
1997.0     0.184    276.5
1998.0     0.178    276.8
1999.0     0.173    277.2
2000.0     0.167    277.6
2001.0     0.162    278.0
2002.0     0.156    278.4
2003.0     0.151    278.8
2004.0     0.145    279.3
2005.0     0.139    279.9
2006.0     0.133    280.5
2007.0     0.127    281.1
2008.0     0.122    281.8
2009.0     0.116    282.6
2010.0     0.110    283.4
2011.0     0.104    284.4
2012.0     0.098    285.4
2013.0     0.092    286.6
2014.0     0.087    288.0
2015.0     0.081    289.5
2016.0     0.075    291.3
2017.0     0.069    293.4
2018.0     0.064    295.8
2019.0     0.058    298.7
2020.0     0.053    302.2
2021.0     0.048    306.5
2022.0     0.043    311.7
2023.0     0.039    318.2
2024.0     0.035    326.1
2025.0     0.032    335.7
2026.0     0.030    346.7
2027.0     0.030    358.7
2028.0     0.031     10.6
2029.0     0.033     21.5
2030.0     0.036     30.9
2031.0     0.039     38.7
2032.0     0.044     45.0
2033.0     0.048     50.1
2034.0     0.054     54.3
2035.0     0.059     57.8
2036.0     0.064     60.6
2037.0     0.070     63.0
2038.0     0.076     65.1
2039.0     0.081     66.8
2040.0     0.087     68.4
2041.0     0.093     69.7
2042.0     0.099     70.9
2043.0     0.105     71.9
2044.0     0.111     72.8
2045.0     0.117     73.7
2046.0     0.123     74.4
2047.0     0.129     75.1
2048.0     0.135     75.7
2049.0     0.141     76.3
2050.0     0.147     76.8
2051.0     0.153     77.3
2052.0     0.159     77.7
2053.0     0.165     78.2
2054.0     0.170     78.6
2055.0     0.176     78.9
2056.0     0.182     79.2
2057.0     0.188     79.6
2058.0     0.194     79.9
2059.0     0.200     80.1
2060.0     0.206     80.4
2061.0     0.212     80.6
2062.0     0.217     80.9
2063.0     0.223     81.1
2064.0     0.229     81.3
2065.0     0.235     81.5
2066.0     0.241     81.7
2067.0     0.246     81.9
2068.0     0.252     82.1
2069.0     0.258     82.2
2070.0     0.263     82.4
2071.0     0.269     82.5
2072.0     0.274     82.7
2073.0     0.280     82.8
2074.0     0.286     83.0
2075.0     0.291     83.1
2076.0     0.297     83.2
2077.0     0.302     83.3
2078.0     0.308     83.5
2079.0     0.313     83.6
2080.0     0.319     83.7
2081.0     0.324     83.8
2082.0     0.329     83.9
2083.0     0.335     84.0
2084.0     0.340     84.1
2085.0     0.345     84.2
2086.0     0.350     84.3
2087.0     0.356     84.4
2088.0     0.361     84.4
2089.0     0.366     84.5
2090.0     0.371     84.6
2091.0     0.376     84.7
2092.0     0.381     84.7
2093.0     0.386     84.8
2094.0     0.391     84.9
2095.0     0.396     85.0
2096.0     0.401     85.0
2097.0     0.406     85.1
2098.0     0.411     85.2
2099.0     0.416     85.2
2100.0     0.421     85.3
2101.0     0.426     85.3
2102.0     0.431     85.4
2103.0     0.435     85.5
2104.0     0.440     85.5
2105.0     0.445     85.6
2106.0     0.449     85.6
2107.0     0.454     85.7
2108.0     0.459     85.7
2109.0     0.463     85.8
2110.0     0.468     85.8
2111.0     0.472     85.9
2112.0     0.477     85.9
2113.0     0.481     86.0
2114.0     0.485     86.0
2115.0     0.490     86.1
2116.0     0.494     86.1
2117.0     0.498     86.2
2118.0     0.503     86.2
2119.0     0.507     86.2
2120.0     0.511     86.3
2121.0     0.515     86.3
2122.0     0.519     86.4
2123.0     0.523     86.4
2124.0     0.527     86.4
2125.0     0.531     86.5
2126.0     0.535     86.5
2127.0     0.539     86.6
2128.0     0.543     86.6
2129.0     0.547     86.6
2130.0     0.550     86.7
2131.0     0.554     86.7
2132.0     0.558     86.7
2133.0     0.562     86.8
2134.0     0.565     86.8
2135.0     0.569     86.8
2136.0     0.572     86.9
2137.0     0.576     86.9
2138.0     0.579     86.9
2139.0     0.583     87.0
2140.0     0.586     87.0
2141.0     0.589     87.0
2142.0     0.593     87.1
2143.0     0.596     87.1
2144.0     0.599     87.1
2145.0     0.602     87.2
2146.0     0.606     87.2
2147.0     0.609     87.2
2148.0     0.612     87.2
2149.0     0.615     87.3
2150.0     0.618     87.3
2151.0     0.620     87.3
2152.0     0.623     87.4
2153.0     0.626     87.4
2154.0     0.629     87.4
2155.0     0.632     87.4
2156.0     0.634     87.5
2157.0     0.637     87.5
2158.0     0.639     87.5
2159.0     0.642     87.6
2160.0     0.644     87.6
2161.0     0.647     87.6
2162.0     0.649     87.6
2163.0     0.652     87.7
2164.0     0.654     87.7
2165.0     0.656     87.7
2166.0     0.658     87.7
2167.0     0.660     87.8
2168.0     0.662     87.8
2169.0     0.664     87.8
2170.0     0.666     87.8
2171.0     0.668     87.9
2172.0     0.670     87.9
2173.0     0.672     87.9
2174.0     0.674     87.9
2175.0     0.675     87.9
2176.0     0.677     88.0
2177.0     0.678     88.0
2178.0     0.680     88.0
2179.0     0.681     88.0
2180.0     0.683     88.1
2181.0     0.684     88.1
2182.0     0.685     88.1
2183.0     0.686     88.1
2184.0     0.688     88.2
2185.0     0.689     88.2
2186.0     0.690     88.2
2187.0     0.691     88.2
2188.0     0.691     88.3
2189.0     0.692     88.3
2190.0     0.693     88.3
2191.0     0.694     88.3
2192.0     0.694     88.3
2193.0     0.695     88.4
2194.0     0.695     88.4
2195.0     0.696     88.4
2196.0     0.696     88.4






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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