Double Star Calculator - Orbit

Orbital Elements for BU992
WDS: BU992 WDS ID/Discoverer
P: 580.212 Orbital period (years)
a: 0.5136 Semi-major axis (arcseconds)
i: 116.0 Inclination (degrees)
Ω: 24.0 Longitude of ascending node (degrees)
T: 2010.703 Epoch of periastron passage (year)
e: 0.47 Eccentricity
ω: 13.0 Longitude of periastron (degrees)
Start-Year: 1734.894 Year
End-Year: 2315.1059999999998 Year
Epoch: 2026.5 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: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Cve2022 Reference

Double Star Orbit for BU992



WDS 6th Orbit including measures of BU992

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Ephemeris of BU992
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.225     1.83
--------------------------
1734.89    0.728   196.54
1735.89    0.727   196.42
1736.89    0.726   196.30
1737.89    0.725   196.18
1738.89    0.724   196.06
1739.89    0.723   195.94
1740.89    0.722   195.82
1741.89    0.721   195.70
1742.89    0.720   195.58
1743.89    0.719   195.45
1744.89    0.718   195.33
1745.89    0.716   195.21
1746.89    0.715   195.08
1747.89    0.714   194.96
1748.89    0.713   194.84
1749.89    0.711   194.71
1750.89    0.710   194.58
1751.89    0.709   194.46
1752.89    0.707   194.33
1753.89    0.706   194.21
1754.89    0.705   194.08
1755.89    0.703   193.95
1756.89    0.702   193.82
1757.89    0.700   193.69
1758.89    0.699   193.56
1759.89    0.697   193.43
1760.89    0.696   193.30
1761.89    0.694   193.17
1762.89    0.693   193.04
1763.89    0.691   192.91
1764.89    0.689   192.78
1765.89    0.688   192.64
1766.89    0.686   192.51
1767.89    0.684   192.37
1768.89    0.682   192.24
1769.89    0.681   192.10
1770.89    0.679   191.96
1771.89    0.677   191.83
1772.89    0.675   191.69
1773.89    0.673   191.55
1774.89    0.672   191.41
1775.89    0.670   191.27
1776.89    0.668   191.13
1777.89    0.666   190.98
1778.89    0.664   190.84
1779.89    0.662   190.70
1780.89    0.660   190.55
1781.89    0.658   190.40
1782.89    0.656   190.26
1783.89    0.654   190.11
1784.89    0.652   189.96
1785.89    0.650   189.81
1786.89    0.647   189.66
1787.89    0.645   189.51
1788.89    0.643   189.36
1789.89    0.641   189.20
1790.89    0.639   189.05
1791.89    0.636   188.89
1792.89    0.634   188.74
1793.89    0.632   188.58
1794.89    0.629   188.42
1795.89    0.627   188.26
1796.89    0.625   188.10
1797.89    0.622   187.93
1798.89    0.620   187.77
1799.89    0.618   187.60
1800.89    0.615   187.44
1801.89    0.613   187.27
1802.89    0.610   187.10
1803.89    0.608   186.93
1804.89    0.605   186.76
1805.89    0.602   186.58
1806.89    0.600   186.41
1807.89    0.597   186.23
1808.89    0.595   186.05
1809.89    0.592   185.87
1810.89    0.589   185.69
1811.89    0.587   185.51
1812.89    0.584   185.32
1813.89    0.581   185.14
1814.89    0.579   184.95
1815.89    0.576   184.76
1816.89    0.573   184.57
1817.89    0.570   184.37
1818.89    0.567   184.18
1819.89    0.564   183.98
1820.89    0.562   183.78
1821.89    0.559   183.58
1822.89    0.556   183.37
1823.89    0.553   183.17
1824.89    0.550   182.96
1825.89    0.547   182.75
1826.89    0.544   182.54
1827.89    0.541   182.32
1828.89    0.538   182.10
1829.89    0.535   181.88
1830.89    0.532   181.66
1831.89    0.529   181.43
1832.89    0.526   181.21
1833.89    0.522   180.98
1834.89    0.519   180.74
1835.89    0.516   180.51
1836.89    0.513   180.27
1837.89    0.510   180.02
1838.89    0.506   179.78
1839.89    0.503   179.53
1840.89    0.500   179.28
1841.89    0.497   179.02
1842.89    0.493   178.76
1843.89    0.490   178.50
1844.89    0.487   178.24
1845.89    0.483   177.97
1846.89    0.480   177.70
1847.89    0.477   177.42
1848.89    0.473   177.14
1849.89    0.470   176.85
1850.89    0.466   176.56
1851.89    0.463   176.27
1852.89    0.459   175.97
1853.89    0.456   175.67
1854.89    0.452   175.36
1855.89    0.449   175.05
1856.89    0.445   174.73
1857.89    0.442   174.41
1858.89    0.438   174.09
1859.89    0.435   173.75
1860.89    0.431   173.42
1861.89    0.428   173.07
1862.89    0.424   172.72
1863.89    0.420   172.37
1864.89    0.417   172.00
1865.89    0.413   171.64
1866.89    0.409   171.26
1867.89    0.406   170.88
1868.89    0.402   170.49
1869.89    0.398   170.10
1870.89    0.395   169.69
1871.89    0.391   169.28
1872.89    0.387   168.87
1873.89    0.384   168.44
1874.89    0.380   168.00
1875.89    0.376   167.56
1876.89    0.372   167.11
1877.89    0.369   166.65
1878.89    0.365   166.18
1879.89    0.361   165.70
1880.89    0.357   165.20
1881.89    0.354   164.70
1882.89    0.350   164.19
1883.89    0.346   163.67
1884.89    0.342   163.13
1885.89    0.339   162.59
1886.89    0.335   162.03
1887.89    0.331   161.46
1888.89    0.327   160.87
1889.89    0.324   160.27
1890.89    0.320   159.66
1891.89    0.316   159.03
1892.89    0.312   158.39
1893.89    0.309   157.74
1894.89    0.305   157.06
1895.89    0.301   156.37
1896.89    0.298   155.67
1897.89    0.294   154.94
1898.89    0.290   154.20
1899.89    0.287   153.44
1900.89    0.283   152.66
1901.89    0.280   151.86
1902.89    0.276   151.04
1903.89    0.273   150.20
1904.89    0.269   149.33
1905.89    0.266   148.45
1906.89    0.262   147.54
1907.89    0.259   146.61
1908.89    0.256   145.65
1909.89    0.252   144.67
1910.89    0.249   143.66
1911.89    0.246   142.62
1912.89    0.243   141.56
1913.89    0.240   140.47
1914.89    0.237   139.36
1915.89    0.234   138.21
1916.89    0.231   137.03
1917.89    0.228   135.83
1918.89    0.225   134.60
1919.89    0.222   133.33
1920.89    0.220   132.04
1921.89    0.217   130.71
1922.89    0.215   129.36
1923.89    0.213   127.97
1924.89    0.210   126.55
1925.89    0.208   125.11
1926.89    0.206   123.63
1927.89    0.204   122.13
1928.89    0.202   120.60
1929.89    0.201   119.04
1930.89    0.199   117.45
1931.89    0.198   115.84
1932.89    0.196   114.21
1933.89    0.195   112.56
1934.89    0.194   110.88
1935.89    0.193   109.19
1936.89    0.192   107.49
1937.89    0.192   105.77
1938.89    0.191   104.03
1939.89    0.191   102.29
1940.89    0.190   100.55
1941.89    0.190    98.80
1942.89    0.190    97.05
1943.89    0.190    95.30
1944.89    0.191    93.55
1945.89    0.191    91.81
1946.89    0.192    90.08
1947.89    0.192    88.36
1948.89    0.193    86.65
1949.89    0.194    84.95
1950.89    0.195    83.28
1951.89    0.196    81.62
1952.89    0.197    79.98
1953.89    0.199    78.37
1954.89    0.200    76.77
1955.89    0.202    75.21
1956.89    0.203    73.66
1957.89    0.205    72.14
1958.89    0.207    70.65
1959.89    0.209    69.18
1960.89    0.211    67.74
1961.89    0.213    66.33
1962.89    0.215    64.94
1963.89    0.217    63.59
1964.89    0.219    62.25
1965.89    0.221    60.95
1966.89    0.224    59.67
1967.89    0.226    58.41
1968.89    0.228    57.18
1969.89    0.230    55.98
1970.89    0.233    54.80
1971.89    0.235    53.64
1972.89    0.237    52.50
1973.89    0.240    51.39
1974.89    0.242    50.29
1975.89    0.244    49.22
1976.89    0.246    48.17
1977.89    0.248    47.13
1978.89    0.251    46.12
1979.89    0.253    45.12
1980.89    0.255    44.13
1981.89    0.257    43.16
1982.89    0.259    42.21
1983.89    0.260    41.27
1984.89    0.262    40.34
1985.89    0.264    39.43
1986.89    0.265    38.52
1987.89    0.267    37.63
1988.89    0.268    36.75
1989.89    0.270    35.87
1990.89    0.271    35.00
1991.89    0.272    34.14
1992.89    0.273    33.29
1993.89    0.274    32.44
1994.89    0.274    31.60
1995.89    0.275    30.76
1996.89    0.275    29.93
1997.89    0.276    29.09
1998.89    0.276    28.26
1999.89    0.276    27.43
2000.89    0.276    26.60
2001.89    0.276    25.76
2002.89    0.275    24.93
2003.89    0.275    24.09
2004.89    0.274    23.25
2005.89    0.273    22.40
2006.89    0.272    21.54
2007.89    0.271    20.68
2008.89    0.269    19.82
2009.89    0.268    18.94
2010.89    0.266    18.05
2011.89    0.264    17.15
2012.89    0.263    16.24
2013.89    0.261    15.31
2014.89    0.258    14.37
2015.89    0.256    13.42
2016.89    0.254    12.44
2017.89    0.251    11.44
2018.89    0.248    10.43
2019.89    0.246     9.39
2020.89    0.243     8.33
2021.89    0.240     7.24
2022.89    0.237     6.12
2023.89    0.233     4.97
2024.89    0.230     3.80
2025.89    0.227     2.58
2026.89    0.224     1.33
2027.89    0.220     0.05
2028.89    0.217   358.72
2029.89    0.213   357.35
2030.89    0.210   355.94
2031.89    0.206   354.47
2032.89    0.203   352.96
2033.89    0.199   351.40
2034.89    0.196   349.78
2035.89    0.193   348.10
2036.89    0.189   346.37
2037.89    0.186   344.57
2038.89    0.183   342.71
2039.89    0.180   340.79
2040.89    0.177   338.81
2041.89    0.174   336.76
2042.89    0.172   334.64
2043.89    0.169   332.46
2044.89    0.167   330.21
2045.89    0.165   327.91
2046.89    0.163   325.55
2047.89    0.161   323.13
2048.89    0.160   320.67
2049.89    0.158   318.16
2050.89    0.157   315.61
2051.89    0.156   313.03
2052.89    0.156   310.43
2053.89    0.156   307.82
2054.89    0.156   305.21
2055.89    0.156   302.59
2056.89    0.156   300.00
2057.89    0.157   297.42
2058.89    0.158   294.87
2059.89    0.160   292.36
2060.89    0.161   289.90
2061.89    0.163   287.48
2062.89    0.165   285.12
2063.89    0.167   282.82
2064.89    0.170   280.59
2065.89    0.172   278.42
2066.89    0.175   276.32
2067.89    0.178   274.29
2068.89    0.181   272.33
2069.89    0.185   270.44
2070.89    0.188   268.61
2071.89    0.192   266.86
2072.89    0.196   265.17
2073.89    0.199   263.55
2074.89    0.203   261.98
2075.89    0.207   260.48
2076.89    0.212   259.04
2077.89    0.216   257.66
2078.89    0.220   256.32
2079.89    0.225   255.04
2080.89    0.229   253.81
2081.89    0.234   252.63
2082.89    0.238   251.49
2083.89    0.243   250.39
2084.89    0.247   249.34
2085.89    0.252   248.32
2086.89    0.257   247.34
2087.89    0.261   246.40
2088.89    0.266   245.49
2089.89    0.271   244.61
2090.89    0.276   243.76
2091.89    0.280   242.94
2092.89    0.285   242.15
2093.89    0.290   241.39
2094.89    0.295   240.65
2095.89    0.300   239.93
2096.89    0.305   239.24
2097.89    0.309   238.56
2098.89    0.314   237.91
2099.89    0.319   237.28
2100.89    0.324   236.67
2101.89    0.328   236.07
2102.89    0.333   235.49
2103.89    0.338   234.93
2104.89    0.343   234.38
2105.89    0.347   233.85
2106.89    0.352   233.33
2107.89    0.357   232.83
2108.89    0.362   232.34
2109.89    0.366   231.86
2110.89    0.371   231.39
2111.89    0.375   230.94
2112.89    0.380   230.50
2113.89    0.385   230.06
2114.89    0.389   229.64
2115.89    0.394   229.23
2116.89    0.398   228.82
2117.89    0.403   228.43
2118.89    0.407   228.04
2119.89    0.412   227.66
2120.89    0.416   227.29
2121.89    0.420   226.93
2122.89    0.425   226.57
2123.89    0.429   226.23
2124.89    0.433   225.89
2125.89    0.438   225.55
2126.89    0.442   225.22
2127.89    0.446   224.90
2128.89    0.450   224.59
2129.89    0.454   224.28
2130.89    0.458   223.97
2131.89    0.463   223.68
2132.89    0.467   223.38
2133.89    0.471   223.09
2134.89    0.475   222.81
2135.89    0.479   222.53
2136.89    0.483   222.26
2137.89    0.487   221.99
2138.89    0.490   221.72
2139.89    0.494   221.46
2140.89    0.498   221.20
2141.89    0.502   220.95
2142.89    0.506   220.70
2143.89    0.509   220.45
2144.89    0.513   220.21
2145.89    0.517   219.97
2146.89    0.520   219.74
2147.89    0.524   219.51
2148.89    0.528   219.28
2149.89    0.531   219.05
2150.89    0.535   218.83
2151.89    0.538   218.61
2152.89    0.542   218.39
2153.89    0.545   218.18
2154.89    0.549   217.96
2155.89    0.552   217.76
2156.89    0.555   217.55
2157.89    0.559   217.34
2158.89    0.562   217.14
2159.89    0.565   216.94
2160.89    0.568   216.75
2161.89    0.572   216.55
2162.89    0.575   216.36
2163.89    0.578   216.17
2164.89    0.581   215.98
2165.89    0.584   215.79
2166.89    0.587   215.61
2167.89    0.590   215.42
2168.89    0.593   215.24
2169.89    0.596   215.06
2170.89    0.599   214.89
2171.89    0.602   214.71
2172.89    0.605   214.54
2173.89    0.607   214.36
2174.89    0.610   214.19
2175.89    0.613   214.02
2176.89    0.616   213.86
2177.89    0.618   213.69
2178.89    0.621   213.53
2179.89    0.624   213.36
2180.89    0.626   213.20
2181.89    0.629   213.04
2182.89    0.631   212.88
2183.89    0.634   212.72
2184.89    0.637   212.56
2185.89    0.639   212.41
2186.89    0.641   212.25
2187.89    0.644   212.10
2188.89    0.646   211.95
2189.89    0.649   211.80
2190.89    0.651   211.65
2191.89    0.653   211.50
2192.89    0.655   211.35
2193.89    0.658   211.20
2194.89    0.660   211.06
2195.89    0.662   210.91
2196.89    0.664   210.77
2197.89    0.666   210.63
2198.89    0.668   210.48
2199.89    0.670   210.34
2200.89    0.672   210.20
2201.89    0.674   210.06
2202.89    0.676   209.92
2203.89    0.678   209.79
2204.89    0.680   209.65
2205.89    0.682   209.51
2206.89    0.684   209.38
2207.89    0.686   209.24
2208.89    0.688   209.11
2209.89    0.689   208.97
2210.89    0.691   208.84
2211.89    0.693   208.71
2212.89    0.695   208.58
2213.89    0.696   208.45
2214.89    0.698   208.32
2215.89    0.700   208.19
2216.89    0.701   208.06
2217.89    0.703   207.93
2218.89    0.704   207.80
2219.89    0.706   207.67
2220.89    0.707   207.55
2221.89    0.709   207.42
2222.89    0.710   207.29
2223.89    0.711   207.17
2224.89    0.713   207.04
2225.89    0.714   206.92
2226.89    0.715   206.79
2227.89    0.717   206.67
2228.89    0.718   206.55
2229.89    0.719   206.43
2230.89    0.720   206.30
2231.89    0.722   206.18
2232.89    0.723   206.06
2233.89    0.724   205.94
2234.89    0.725   205.82
2235.89    0.726   205.70
2236.89    0.727   205.58
2237.89    0.728   205.46
2238.89    0.729   205.34
2239.89    0.730   205.22
2240.89    0.731   205.10
2241.89    0.732   204.98
2242.89    0.733   204.86
2243.89    0.733   204.75
2244.89    0.734   204.63
2245.89    0.735   204.51
2246.89    0.736   204.39
2247.89    0.737   204.28
2248.89    0.737   204.16
2249.89    0.738   204.04
2250.89    0.739   203.93
2251.89    0.739   203.81
2252.89    0.740   203.70
2253.89    0.740   203.58
2254.89    0.741   203.47
2255.89    0.742   203.35
2256.89    0.742   203.24
2257.89    0.743   203.12
2258.89    0.743   203.01
2259.89    0.743   202.89
2260.89    0.744   202.78
2261.89    0.744   202.66
2262.89    0.745   202.55
2263.89    0.745   202.43
2264.89    0.745   202.32
2265.89    0.745   202.21
2266.89    0.746   202.09
2267.89    0.746   201.98
2268.89    0.746   201.86
2269.89    0.746   201.75
2270.89    0.746   201.64
2271.89    0.747   201.52
2272.89    0.747   201.41
2273.89    0.747   201.30
2274.89    0.747   201.18
2275.89    0.747   201.07
2276.89    0.747   200.96
2277.89    0.747   200.84
2278.89    0.747   200.73
2279.89    0.747   200.61
2280.89    0.747   200.50
2281.89    0.746   200.39
2282.89    0.746   200.27
2283.89    0.746   200.16
2284.89    0.746   200.05
2285.89    0.746   199.93
2286.89    0.745   199.82
2287.89    0.745   199.70
2288.89    0.745   199.59
2289.89    0.745   199.48
2290.89    0.744   199.36
2291.89    0.744   199.25
2292.89    0.743   199.13
2293.89    0.743   199.02
2294.89    0.743   198.90
2295.89    0.742   198.79
2296.89    0.742   198.67
2297.89    0.741   198.56
2298.89    0.741   198.44
2299.89    0.740   198.33
2300.89    0.739   198.21
2301.89    0.739   198.10
2302.89    0.738   197.98
2303.89    0.737   197.86
2304.89    0.737   197.75
2305.89    0.736   197.63
2306.89    0.735   197.51
2307.89    0.735   197.40
2308.89    0.734   197.28
2309.89    0.733   197.16
2310.89    0.732   197.04
2311.89    0.731   196.92
2312.89    0.730   196.80
2313.89    0.729   196.69
2314.89    0.729   196.57






Disclaimer
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.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 18:49:05



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