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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:40:42

Orbital Elements for BU992
WDS: BU992 WDS ID/Discoverer
P: 516.820 Orbital period (years)
a: 0.43 Semi-major axis (arcseconds)
i: 122.67 Inclination (degrees)
Ω: 171.29 Longitude of ascending node (degrees)
T: 1880.810 Epoch of periastron passage (year)
e: 0.365 Eccentricity
ω: 0.94 Longitude of periastron (degrees)
Start-Year: 1767.0 Year
End-Year: 2283.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU992
Position: 231623.52+640658.5 Epoch-2000 right ascension and declination
WDS-ID: 23164+6407 WDS designation
Discoverer Code: BU992 Discover designation and components
ADS number: 16638 Aitken Double Star catalog
HD number: 219633 HD catalog number
Hipparcos number: 114898 Hipparcos catalog number
V1: 8.21 Magnitude of the primary
V2: 8.29 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1979 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU992



WDS 6th Orbit including measures of BU992

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


Ephemeris of BU992
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.414     18.0
-------------------------
1767.0     0.311    307.5
1768.0     0.307    306.8
1769.0     0.304    306.1
1770.0     0.301    305.4
1771.0     0.298    304.7
1772.0     0.294    304.0
1773.0     0.291    303.2
1774.0     0.288    302.4
1775.0     0.285    301.7
1776.0     0.282    300.8
1777.0     0.279    300.0
1778.0     0.275    299.2
1779.0     0.272    298.3
1780.0     0.269    297.4
1781.0     0.266    296.5
1782.0     0.263    295.6
1783.0     0.260    294.7
1784.0     0.257    293.7
1785.0     0.254    292.7
1786.0     0.252    291.7
1787.0     0.249    290.7
1788.0     0.246    289.6
1789.0     0.243    288.5
1790.0     0.240    287.4
1791.0     0.238    286.3
1792.0     0.235    285.1
1793.0     0.233    283.9
1794.0     0.230    282.7
1795.0     0.228    281.5
1796.0     0.225    280.2
1797.0     0.223    279.0
1798.0     0.221    277.6
1799.0     0.219    276.3
1800.0     0.217    274.9
1801.0     0.215    273.5
1802.0     0.213    272.1
1803.0     0.211    270.7
1804.0     0.210    269.2
1805.0     0.208    267.7
1806.0     0.206    266.2
1807.0     0.205    264.7
1808.0     0.204    263.2
1809.0     0.203    261.6
1810.0     0.202    260.0
1811.0     0.201    258.4
1812.0     0.200    256.8
1813.0     0.199    255.2
1814.0     0.198    253.5
1815.0     0.198    251.9
1816.0     0.197    250.2
1817.0     0.197    248.6
1818.0     0.197    246.9
1819.0     0.197    245.2
1820.0     0.197    243.6
1821.0     0.197    241.9
1822.0     0.198    240.2
1823.0     0.198    238.6
1824.0     0.198    236.9
1825.0     0.199    235.3
1826.0     0.200    233.7
1827.0     0.201    232.0
1828.0     0.202    230.4
1829.0     0.203    228.9
1830.0     0.204    227.3
1831.0     0.205    225.7
1832.0     0.206    224.2
1833.0     0.208    222.7
1834.0     0.209    221.2
1835.0     0.210    219.7
1836.0     0.212    218.3
1837.0     0.214    216.9
1838.0     0.215    215.5
1839.0     0.217    214.1
1840.0     0.219    212.7
1841.0     0.221    211.4
1842.0     0.222    210.0
1843.0     0.224    208.8
1844.0     0.226    207.5
1845.0     0.228    206.2
1846.0     0.230    205.0
1847.0     0.232    203.8
1848.0     0.234    202.6
1849.0     0.236    201.4
1850.0     0.238    200.3
1851.0     0.240    199.1
1852.0     0.242    198.0
1853.0     0.244    196.9
1854.0     0.245    195.8
1855.0     0.247    194.8
1856.0     0.249    193.7
1857.0     0.251    192.7
1858.0     0.253    191.6
1859.0     0.254    190.6
1860.0     0.256    189.6
1861.0     0.257    188.7
1862.0     0.259    187.7
1863.0     0.260    186.7
1864.0     0.262    185.8
1865.0     0.263    184.8
1866.0     0.264    183.9
1867.0     0.265    183.0
1868.0     0.267    182.1
1869.0     0.268    181.2
1870.0     0.269    180.3
1871.0     0.269    179.4
1872.0     0.270    178.5
1873.0     0.271    177.6
1874.0     0.271    176.7
1875.0     0.272    175.8
1876.0     0.272    175.0
1877.0     0.273    174.1
1878.0     0.273    173.2
1879.0     0.273    172.4
1880.0     0.273    171.5
1881.0     0.273    170.6
1882.0     0.273    169.7
1883.0     0.273    168.9
1884.0     0.272    168.0
1885.0     0.272    167.1
1886.0     0.271    166.3
1887.0     0.271    165.4
1888.0     0.270    164.5
1889.0     0.269    163.6
1890.0     0.268    162.7
1891.0     0.267    161.8
1892.0     0.266    160.9
1893.0     0.265    160.0
1894.0     0.264    159.0
1895.0     0.263    158.1
1896.0     0.261    157.2
1897.0     0.260    156.2
1898.0     0.258    155.3
1899.0     0.257    154.3
1900.0     0.255    153.3
1901.0     0.254    152.3
1902.0     0.252    151.3
1903.0     0.250    150.2
1904.0     0.248    149.2
1905.0     0.246    148.1
1906.0     0.244    147.1
1907.0     0.243    146.0
1908.0     0.241    144.9
1909.0     0.239    143.7
1910.0     0.237    142.6
1911.0     0.235    141.4
1912.0     0.233    140.2
1913.0     0.231    139.0
1914.0     0.229    137.8
1915.0     0.227    136.6
1916.0     0.225    135.3
1917.0     0.223    134.0
1918.0     0.221    132.7
1919.0     0.219    131.3
1920.0     0.217    130.0
1921.0     0.215    128.6
1922.0     0.214    127.2
1923.0     0.212    125.8
1924.0     0.210    124.3
1925.0     0.209    122.8
1926.0     0.207    121.3
1927.0     0.206    119.8
1928.0     0.204    118.3
1929.0     0.203    116.7
1930.0     0.202    115.1
1931.0     0.200    113.5
1932.0     0.199    111.9
1933.0     0.198    110.3
1934.0     0.198    108.6
1935.0     0.197    107.0
1936.0     0.196    105.3
1937.0     0.196    103.6
1938.0     0.195    101.9
1939.0     0.195    100.2
1940.0     0.195     98.5
1941.0     0.195     96.8
1942.0     0.195     95.1
1943.0     0.195     93.4
1944.0     0.195     91.7
1945.0     0.196     90.0
1946.0     0.196     88.3
1947.0     0.197     86.6
1948.0     0.198     85.0
1949.0     0.199     83.3
1950.0     0.200     81.7
1951.0     0.201     80.1
1952.0     0.202     78.5
1953.0     0.203     76.9
1954.0     0.205     75.4
1955.0     0.206     73.8
1956.0     0.208     72.3
1957.0     0.210     70.8
1958.0     0.212     69.4
1959.0     0.214     68.0
1960.0     0.216     66.5
1961.0     0.218     65.2
1962.0     0.220     63.8
1963.0     0.222     62.5
1964.0     0.225     61.2
1965.0     0.227     59.9
1966.0     0.230     58.7
1967.0     0.232     57.5
1968.0     0.235     56.3
1969.0     0.237     55.1
1970.0     0.240     54.0
1971.0     0.243     52.9
1972.0     0.246     51.8
1973.0     0.249     50.7
1974.0     0.252     49.7
1975.0     0.255     48.7
1976.0     0.258     47.7
1977.0     0.261     46.8
1978.0     0.264     45.8
1979.0     0.267     44.9
1980.0     0.270     44.0
1981.0     0.273     43.1
1982.0     0.276     42.3
1983.0     0.279     41.4
1984.0     0.283     40.6
1985.0     0.286     39.8
1986.0     0.289     39.0
1987.0     0.292     38.2
1988.0     0.296     37.5
1989.0     0.299     36.8
1990.0     0.302     36.0
1991.0     0.305     35.3
1992.0     0.309     34.7
1993.0     0.312     34.0
1994.0     0.315     33.3
1995.0     0.319     32.7
1996.0     0.322     32.1
1997.0     0.325     31.4
1998.0     0.328     30.8
1999.0     0.332     30.2
2000.0     0.335     29.6
2001.0     0.338     29.1
2002.0     0.342     28.5
2003.0     0.345     28.0
2004.0     0.348     27.4
2005.0     0.351     26.9
2006.0     0.355     26.4
2007.0     0.358     25.9
2008.0     0.361     25.4
2009.0     0.364     24.9
2010.0     0.368     24.4
2011.0     0.371     23.9
2012.0     0.374     23.5
2013.0     0.377     23.0
2014.0     0.380     22.5
2015.0     0.383     22.1
2016.0     0.387     21.7
2017.0     0.390     21.2
2018.0     0.393     20.8
2019.0     0.396     20.4
2020.0     0.399     20.0
2021.0     0.402     19.6
2022.0     0.405     19.2
2023.0     0.408     18.8
2024.0     0.411     18.4
2025.0     0.414     18.0
2026.0     0.417     17.6
2027.0     0.420     17.3
2028.0     0.423     16.9
2029.0     0.426     16.6
2030.0     0.428     16.2
2031.0     0.431     15.8
2032.0     0.434     15.5
2033.0     0.437     15.2
2034.0     0.440     14.8
2035.0     0.442     14.5
2036.0     0.445     14.2
2037.0     0.448     13.8
2038.0     0.450     13.5
2039.0     0.453     13.2
2040.0     0.456     12.9
2041.0     0.458     12.6
2042.0     0.461     12.3
2043.0     0.464     12.0
2044.0     0.466     11.7
2045.0     0.469     11.4
2046.0     0.471     11.1
2047.0     0.474     10.8
2048.0     0.476     10.5
2049.0     0.478     10.2
2050.0     0.481      9.9
2051.0     0.483      9.7
2052.0     0.486      9.4
2053.0     0.488      9.1
2054.0     0.490      8.8
2055.0     0.492      8.6
2056.0     0.495      8.3
2057.0     0.497      8.0
2058.0     0.499      7.8
2059.0     0.501      7.5
2060.0     0.503      7.3
2061.0     0.506      7.0
2062.0     0.508      6.8
2063.0     0.510      6.5
2064.0     0.512      6.3
2065.0     0.514      6.0
2066.0     0.516      5.8
2067.0     0.518      5.5
2068.0     0.520      5.3
2069.0     0.521      5.0
2070.0     0.523      4.8
2071.0     0.525      4.6
2072.0     0.527      4.3
2073.0     0.529      4.1
2074.0     0.531      3.9
2075.0     0.532      3.6
2076.0     0.534      3.4
2077.0     0.536      3.2
2078.0     0.537      3.0
2079.0     0.539      2.7
2080.0     0.541      2.5
2081.0     0.542      2.3
2082.0     0.544      2.1
2083.0     0.545      1.9
2084.0     0.547      1.6
2085.0     0.548      1.4
2086.0     0.550      1.2
2087.0     0.551      1.0
2088.0     0.553      0.8
2089.0     0.554      0.6
2090.0     0.555      0.4
2091.0     0.557      0.2
2092.0     0.558    360.0
2093.0     0.559    359.7
2094.0     0.560    359.5
2095.0     0.562    359.3
2096.0     0.563    359.1
2097.0     0.564    358.9
2098.0     0.565    358.7
2099.0     0.566    358.5
2100.0     0.567    358.3
2101.0     0.568    358.1
2102.0     0.569    357.9
2103.0     0.570    357.7
2104.0     0.571    357.5
2105.0     0.572    357.3
2106.0     0.573    357.1
2107.0     0.574    356.9
2108.0     0.575    356.7
2109.0     0.575    356.5
2110.0     0.576    356.3
2111.0     0.577    356.1
2112.0     0.578    355.9
2113.0     0.578    355.8
2114.0     0.579    355.6
2115.0     0.580    355.4
2116.0     0.580    355.2
2117.0     0.581    355.0
2118.0     0.582    354.8
2119.0     0.582    354.6
2120.0     0.583    354.4
2121.0     0.583    354.2
2122.0     0.583    354.0
2123.0     0.584    353.8
2124.0     0.584    353.7
2125.0     0.585    353.5
2126.0     0.585    353.3
2127.0     0.585    353.1
2128.0     0.586    352.9
2129.0     0.586    352.7
2130.0     0.586    352.5
2131.0     0.586    352.3
2132.0     0.586    352.1
2133.0     0.587    352.0
2134.0     0.587    351.8
2135.0     0.587    351.6
2136.0     0.587    351.4
2137.0     0.587    351.2
2138.0     0.587    351.0
2139.0     0.587    350.8
2140.0     0.587    350.6
2141.0     0.587    350.4
2142.0     0.587    350.3
2143.0     0.587    350.1
2144.0     0.586    349.9
2145.0     0.586    349.7
2146.0     0.586    349.5
2147.0     0.586    349.3
2148.0     0.585    349.1
2149.0     0.585    348.9
2150.0     0.585    348.8
2151.0     0.584    348.6
2152.0     0.584    348.4
2153.0     0.584    348.2
2154.0     0.583    348.0
2155.0     0.583    347.8
2156.0     0.582    347.6
2157.0     0.582    347.4
2158.0     0.581    347.2
2159.0     0.581    347.0
2160.0     0.580    346.8
2161.0     0.579    346.7
2162.0     0.579    346.5
2163.0     0.578    346.3
2164.0     0.577    346.1
2165.0     0.577    345.9
2166.0     0.576    345.7
2167.0     0.575    345.5
2168.0     0.574    345.3
2169.0     0.573    345.1
2170.0     0.572    344.9
2171.0     0.572    344.7
2172.0     0.571    344.5
2173.0     0.570    344.3
2174.0     0.569    344.1
2175.0     0.568    343.9
2176.0     0.567    343.7
2177.0     0.566    343.5
2178.0     0.564    343.3
2179.0     0.563    343.1
2180.0     0.562    342.9
2181.0     0.561    342.7
2182.0     0.560    342.5
2183.0     0.559    342.3
2184.0     0.557    342.1
2185.0     0.556    341.9
2186.0     0.555    341.6
2187.0     0.553    341.4
2188.0     0.552    341.2
2189.0     0.551    341.0
2190.0     0.549    340.8
2191.0     0.548    340.6
2192.0     0.546    340.4
2193.0     0.545    340.1
2194.0     0.543    339.9
2195.0     0.542    339.7
2196.0     0.540    339.5
2197.0     0.538    339.3
2198.0     0.537    339.0
2199.0     0.535    338.8
2200.0     0.533    338.6
2201.0     0.532    338.4
2202.0     0.530    338.1
2203.0     0.528    337.9
2204.0     0.526    337.7
2205.0     0.525    337.4
2206.0     0.523    337.2
2207.0     0.521    337.0
2208.0     0.519    336.7
2209.0     0.517    336.5
2210.0     0.515    336.2
2211.0     0.513    336.0
2212.0     0.511    335.7
2213.0     0.509    335.5
2214.0     0.507    335.2
2215.0     0.505    335.0
2216.0     0.503    334.7
2217.0     0.501    334.5
2218.0     0.498    334.2
2219.0     0.496    334.0
2220.0     0.494    333.7
2221.0     0.492    333.4
2222.0     0.490    333.2
2223.0     0.487    332.9
2224.0     0.485    332.6
2225.0     0.483    332.3
2226.0     0.480    332.1
2227.0     0.478    331.8
2228.0     0.475    331.5
2229.0     0.473    331.2
2230.0     0.471    330.9
2231.0     0.468    330.6
2232.0     0.466    330.3
2233.0     0.463    330.0
2234.0     0.461    329.7
2235.0     0.458    329.4
2236.0     0.455    329.1
2237.0     0.453    328.8
2238.0     0.450    328.5
2239.0     0.447    328.1
2240.0     0.445    327.8
2241.0     0.442    327.5
2242.0     0.439    327.2
2243.0     0.437    326.8
2244.0     0.434    326.5
2245.0     0.431    326.1
2246.0     0.428    325.8
2247.0     0.425    325.4
2248.0     0.422    325.1
2249.0     0.420    324.7
2250.0     0.417    324.3
2251.0     0.414    324.0
2252.0     0.411    323.6
2253.0     0.408    323.2
2254.0     0.405    322.8
2255.0     0.402    322.4
2256.0     0.399    322.0
2257.0     0.396    321.6
2258.0     0.393    321.2
2259.0     0.390    320.7
2260.0     0.387    320.3
2261.0     0.384    319.9
2262.0     0.381    319.4
2263.0     0.377    319.0
2264.0     0.374    318.5
2265.0     0.371    318.1
2266.0     0.368    317.6
2267.0     0.365    317.1
2268.0     0.362    316.6
2269.0     0.359    316.1
2270.0     0.355    315.6
2271.0     0.352    315.1
2272.0     0.349    314.6
2273.0     0.346    314.0
2274.0     0.342    313.5
2275.0     0.339    312.9
2276.0     0.336    312.4
2277.0     0.333    311.8
2278.0     0.329    311.2
2279.0     0.326    310.6
2280.0     0.323    310.0
2281.0     0.320    309.3
2282.0     0.316    308.7






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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