Double Star Calculator - Orbit

Orbital Elements for KUI8
WDS: KUI8 WDS ID/Discoverer
P: 653.000 Orbital period (years)
a: 0.769 Semi-major axis (arcseconds)
i: 79.9 Inclination (degrees)
Ω: 28.6 Longitude of ascending node (degrees)
T: 1922.300 Epoch of periastron passage (year)
e: 0.545 Eccentricity
ω: 291.4 Longitude of periastron (degrees)
Start-Year: 1698.5 Year
End-Year: 2351.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for KUI8
Position: 022759.93+015739.1 Epoch-2000 right ascension and declination
WDS-ID: 02280+0158 WDS designation
Discoverer Code: KUI8 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 15328 HD catalog number
Hipparcos number: 11474 Hipparcos catalog number
V1: 7.09 Magnitude of the primary
V2: 7.63 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: Flags
Ephemerides: Ephemerides
Code: Zir2013a Reference

Double Star Orbit for KUI8



WDS 6th Orbit including measures of KUI8

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


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of KUI8
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.466    41.84
--------------------------
1698.50    0.755   197.70
1699.50    0.757   197.78
1700.50    0.759   197.87
1701.50    0.761   197.95
1702.50    0.762   198.03
1703.50    0.764   198.11
1704.50    0.766   198.20
1705.50    0.768   198.28
1706.50    0.769   198.36
1707.50    0.771   198.44
1708.50    0.773   198.52
1709.50    0.774   198.60
1710.50    0.776   198.68
1711.50    0.777   198.76
1712.50    0.779   198.84
1713.50    0.780   198.92
1714.50    0.782   199.00
1715.50    0.783   199.07
1716.50    0.785   199.15
1717.50    0.786   199.23
1718.50    0.788   199.31
1719.50    0.789   199.38
1720.50    0.790   199.46
1721.50    0.792   199.54
1722.50    0.793   199.61
1723.50    0.794   199.69
1724.50    0.796   199.77
1725.50    0.797   199.84
1726.50    0.798   199.92
1727.50    0.799   199.99
1728.50    0.800   200.07
1729.50    0.801   200.14
1730.50    0.802   200.22
1731.50    0.804   200.29
1732.50    0.805   200.37
1733.50    0.806   200.44
1734.50    0.806   200.51
1735.50    0.807   200.59
1736.50    0.808   200.66
1737.50    0.809   200.73
1738.50    0.810   200.81
1739.50    0.811   200.88
1740.50    0.812   200.95
1741.50    0.812   201.03
1742.50    0.813   201.10
1743.50    0.814   201.17
1744.50    0.814   201.24
1745.50    0.815   201.31
1746.50    0.816   201.39
1747.50    0.816   201.46
1748.50    0.817   201.53
1749.50    0.817   201.60
1750.50    0.818   201.67
1751.50    0.818   201.75
1752.50    0.818   201.82
1753.50    0.819   201.89
1754.50    0.819   201.96
1755.50    0.819   202.03
1756.50    0.819   202.10
1757.50    0.820   202.17
1758.50    0.820   202.25
1759.50    0.820   202.32
1760.50    0.820   202.39
1761.50    0.820   202.46
1762.50    0.820   202.53
1763.50    0.820   202.60
1764.50    0.820   202.67
1765.50    0.820   202.75
1766.50    0.820   202.82
1767.50    0.819   202.89
1768.50    0.819   202.96
1769.50    0.819   203.03
1770.50    0.819   203.10
1771.50    0.818   203.17
1772.50    0.818   203.25
1773.50    0.818   203.32
1774.50    0.817   203.39
1775.50    0.817   203.46
1776.50    0.816   203.53
1777.50    0.815   203.60
1778.50    0.815   203.68
1779.50    0.814   203.75
1780.50    0.813   203.82
1781.50    0.812   203.89
1782.50    0.812   203.97
1783.50    0.811   204.04
1784.50    0.810   204.11
1785.50    0.809   204.19
1786.50    0.808   204.26
1787.50    0.807   204.33
1788.50    0.806   204.41
1789.50    0.804   204.48
1790.50    0.803   204.55
1791.50    0.802   204.63
1792.50    0.801   204.70
1793.50    0.799   204.78
1794.50    0.798   204.85
1795.50    0.796   204.93
1796.50    0.795   205.01
1797.50    0.793   205.08
1798.50    0.791   205.16
1799.50    0.790   205.23
1800.50    0.788   205.31
1801.50    0.786   205.39
1802.50    0.784   205.47
1803.50    0.782   205.54
1804.50    0.780   205.62
1805.50    0.778   205.70
1806.50    0.776   205.78
1807.50    0.774   205.86
1808.50    0.772   205.94
1809.50    0.769   206.02
1810.50    0.767   206.10
1811.50    0.765   206.19
1812.50    0.762   206.27
1813.50    0.760   206.35
1814.50    0.757   206.43
1815.50    0.754   206.52
1816.50    0.751   206.60
1817.50    0.749   206.69
1818.50    0.746   206.77
1819.50    0.743   206.86
1820.50    0.740   206.95
1821.50    0.737   207.04
1822.50    0.733   207.12
1823.50    0.730   207.21
1824.50    0.727   207.30
1825.50    0.723   207.39
1826.50    0.720   207.49
1827.50    0.716   207.58
1828.50    0.713   207.67
1829.50    0.709   207.77
1830.50    0.705   207.86
1831.50    0.701   207.96
1832.50    0.697   208.06
1833.50    0.693   208.16
1834.50    0.689   208.26
1835.50    0.685   208.36
1836.50    0.681   208.46
1837.50    0.676   208.57
1838.50    0.672   208.67
1839.50    0.667   208.78
1840.50    0.662   208.89
1841.50    0.658   209.00
1842.50    0.653   209.11
1843.50    0.648   209.22
1844.50    0.643   209.34
1845.50    0.638   209.46
1846.50    0.632   209.57
1847.50    0.627   209.70
1848.50    0.621   209.82
1849.50    0.616   209.94
1850.50    0.610   210.07
1851.50    0.604   210.20
1852.50    0.599   210.33
1853.50    0.593   210.47
1854.50    0.586   210.61
1855.50    0.580   210.75
1856.50    0.574   210.89
1857.50    0.567   211.04
1858.50    0.561   211.19
1859.50    0.554   211.34
1860.50    0.547   211.50
1861.50    0.541   211.66
1862.50    0.533   211.83
1863.50    0.526   212.00
1864.50    0.519   212.18
1865.50    0.512   212.36
1866.50    0.504   212.54
1867.50    0.496   212.73
1868.50    0.489   212.93
1869.50    0.481   213.14
1870.50    0.473   213.35
1871.50    0.464   213.57
1872.50    0.456   213.79
1873.50    0.448   214.03
1874.50    0.439   214.27
1875.50    0.430   214.52
1876.50    0.421   214.79
1877.50    0.412   215.06
1878.50    0.403   215.35
1879.50    0.394   215.65
1880.50    0.384   215.97
1881.50    0.375   216.30
1882.50    0.365   216.65
1883.50    0.355   217.02
1884.50    0.345   217.42
1885.50    0.335   217.83
1886.50    0.325   218.27
1887.50    0.314   218.74
1888.50    0.304   219.24
1889.50    0.293   219.78
1890.50    0.282   220.36
1891.50    0.271   220.98
1892.50    0.260   221.66
1893.50    0.249   222.40
1894.50    0.238   223.21
1895.50    0.227   224.10
1896.50    0.215   225.08
1897.50    0.204   226.17
1898.50    0.192   227.39
1899.50    0.181   228.77
1900.50    0.169   230.34
1901.50    0.158   232.13
1902.50    0.146   234.21
1903.50    0.135   236.64
1904.50    0.124   239.51
1905.50    0.113   242.94
1906.50    0.102   247.09
1907.50    0.092   252.16
1908.50    0.083   258.39
1909.50    0.075   266.04
1910.50    0.069   275.28
1911.50    0.065   286.07
1912.50    0.063   297.93
1913.50    0.064   309.95
1914.50    0.067   321.17
1915.50    0.073   330.96
1916.50    0.081   339.13
1917.50    0.089   345.81
1918.50    0.099   351.24
1919.50    0.109   355.68
1920.50    0.120   359.34
1921.50    0.131     2.40
1922.50    0.142     4.97
1923.50    0.153     7.17
1924.50    0.165     9.07
1925.50    0.176    10.72
1926.50    0.187    12.18
1927.50    0.199    13.46
1928.50    0.210    14.61
1929.50    0.221    15.65
1930.50    0.232    16.59
1931.50    0.242    17.44
1932.50    0.253    18.22
1933.50    0.263    18.95
1934.50    0.273    19.61
1935.50    0.283    20.23
1936.50    0.293    20.81
1937.50    0.302    21.35
1938.50    0.312    21.86
1939.50    0.321    22.34
1940.50    0.329    22.79
1941.50    0.338    23.22
1942.50    0.346    23.63
1943.50    0.355    24.02
1944.50    0.362    24.40
1945.50    0.370    24.75
1946.50    0.377    25.10
1947.50    0.385    25.43
1948.50    0.391    25.75
1949.50    0.398    26.05
1950.50    0.405    26.35
1951.50    0.411    26.64
1952.50    0.417    26.92
1953.50    0.423    27.19
1954.50    0.428    27.46
1955.50    0.433    27.71
1956.50    0.439    27.97
1957.50    0.443    28.21
1958.50    0.448    28.45
1959.50    0.453    28.69
1960.50    0.457    28.92
1961.50    0.461    29.15
1962.50    0.465    29.37
1963.50    0.469    29.59
1964.50    0.472    29.81
1965.50    0.476    30.02
1966.50    0.479    30.23
1967.50    0.482    30.44
1968.50    0.485    30.65
1969.50    0.487    30.85
1970.50    0.490    31.05
1971.50    0.492    31.25
1972.50    0.495    31.45
1973.50    0.497    31.64
1974.50    0.499    31.83
1975.50    0.500    32.03
1976.50    0.502    32.22
1977.50    0.504    32.41
1978.50    0.505    32.60
1979.50    0.506    32.78
1980.50    0.507    32.97
1981.50    0.508    33.16
1982.50    0.509    33.34
1983.50    0.510    33.53
1984.50    0.511    33.71
1985.50    0.511    33.89
1986.50    0.512    34.08
1987.50    0.512    34.26
1988.50    0.512    34.44
1989.50    0.513    34.62
1990.50    0.513    34.81
1991.50    0.513    34.99
1992.50    0.512    35.17
1993.50    0.512    35.35
1994.50    0.512    35.54
1995.50    0.511    35.72
1996.50    0.511    35.90
1997.50    0.510    36.09
1998.50    0.510    36.27
1999.50    0.509    36.46
2000.50    0.508    36.64
2001.50    0.507    36.83
2002.50    0.506    37.01
2003.50    0.505    37.20
2004.50    0.504    37.39
2005.50    0.503    37.58
2006.50    0.502    37.77
2007.50    0.501    37.96
2008.50    0.499    38.15
2009.50    0.498    38.34
2010.50    0.496    38.54
2011.50    0.495    38.73
2012.50    0.493    38.93
2013.50    0.492    39.13
2014.50    0.490    39.33
2015.50    0.488    39.53
2016.50    0.487    39.73
2017.50    0.485    39.93
2018.50    0.483    40.14
2019.50    0.481    40.34
2020.50    0.479    40.55
2021.50    0.477    40.76
2022.50    0.475    40.97
2023.50    0.473    41.19
2024.50    0.471    41.40
2025.50    0.468    41.62
2026.50    0.466    41.84
2027.50    0.464    42.06
2028.50    0.462    42.28
2029.50    0.459    42.51
2030.50    0.457    42.74
2031.50    0.454    42.97
2032.50    0.452    43.20
2033.50    0.450    43.44
2034.50    0.447    43.68
2035.50    0.445    43.92
2036.50    0.442    44.16
2037.50    0.439    44.41
2038.50    0.437    44.66
2039.50    0.434    44.91
2040.50    0.431    45.17
2041.50    0.429    45.43
2042.50    0.426    45.69
2043.50    0.423    45.95
2044.50    0.421    46.22
2045.50    0.418    46.50
2046.50    0.415    46.77
2047.50    0.412    47.05
2048.50    0.409    47.34
2049.50    0.406    47.63
2050.50    0.403    47.92
2051.50    0.401    48.22
2052.50    0.398    48.52
2053.50    0.395    48.82
2054.50    0.392    49.13
2055.50    0.389    49.45
2056.50    0.386    49.77
2057.50    0.383    50.09
2058.50    0.380    50.42
2059.50    0.377    50.75
2060.50    0.374    51.09
2061.50    0.371    51.44
2062.50    0.368    51.79
2063.50    0.365    52.15
2064.50    0.362    52.51
2065.50    0.359    52.88
2066.50    0.356    53.26
2067.50    0.353    53.64
2068.50    0.349    54.03
2069.50    0.346    54.42
2070.50    0.343    54.83
2071.50    0.340    55.24
2072.50    0.337    55.66
2073.50    0.334    56.08
2074.50    0.331    56.52
2075.50    0.328    56.96
2076.50    0.325    57.41
2077.50    0.322    57.87
2078.50    0.319    58.33
2079.50    0.316    58.81
2080.50    0.313    59.29
2081.50    0.310    59.79
2082.50    0.307    60.30
2083.50    0.304    60.81
2084.50    0.301    61.34
2085.50    0.298    61.87
2086.50    0.295    62.42
2087.50    0.292    62.98
2088.50    0.289    63.55
2089.50    0.286    64.13
2090.50    0.283    64.72
2091.50    0.280    65.33
2092.50    0.277    65.95
2093.50    0.274    66.58
2094.50    0.271    67.22
2095.50    0.268    67.88
2096.50    0.266    68.56
2097.50    0.263    69.24
2098.50    0.260    69.94
2099.50    0.257    70.66
2100.50    0.255    71.39
2101.50    0.252    72.14
2102.50    0.249    72.90
2103.50    0.247    73.68
2104.50    0.244    74.48
2105.50    0.242    75.29
2106.50    0.239    76.12
2107.50    0.237    76.96
2108.50    0.234    77.83
2109.50    0.232    78.71
2110.50    0.230    79.61
2111.50    0.228    80.52
2112.50    0.225    81.46
2113.50    0.223    82.41
2114.50    0.221    83.38
2115.50    0.219    84.37
2116.50    0.217    85.38
2117.50    0.215    86.41
2118.50    0.213    87.45
2119.50    0.212    88.51
2120.50    0.210    89.59
2121.50    0.208    90.69
2122.50    0.207    91.81
2123.50    0.205    92.94
2124.50    0.204    94.09
2125.50    0.202    95.25
2126.50    0.201    96.43
2127.50    0.200    97.62
2128.50    0.199    98.83
2129.50    0.198   100.05
2130.50    0.197   101.28
2131.50    0.196   102.53
2132.50    0.195   103.79
2133.50    0.194   105.05
2134.50    0.194   106.32
2135.50    0.193   107.61
2136.50    0.193   108.89
2137.50    0.192   110.19
2138.50    0.192   111.48
2139.50    0.192   112.78
2140.50    0.192   114.08
2141.50    0.192   115.38
2142.50    0.192   116.68
2143.50    0.192   117.98
2144.50    0.193   119.27
2145.50    0.193   120.56
2146.50    0.194   121.85
2147.50    0.194   123.12
2148.50    0.195   124.39
2149.50    0.196   125.65
2150.50    0.196   126.90
2151.50    0.197   128.14
2152.50    0.198   129.36
2153.50    0.199   130.57
2154.50    0.201   131.77
2155.50    0.202   132.95
2156.50    0.203   134.12
2157.50    0.205   135.27
2158.50    0.206   136.41
2159.50    0.208   137.53
2160.50    0.209   138.63
2161.50    0.211   139.72
2162.50    0.213   140.78
2163.50    0.215   141.83
2164.50    0.217   142.86
2165.50    0.219   143.87
2166.50    0.221   144.87
2167.50    0.223   145.84
2168.50    0.225   146.80
2169.50    0.227   147.74
2170.50    0.229   148.66
2171.50    0.232   149.56
2172.50    0.234   150.44
2173.50    0.236   151.31
2174.50    0.239   152.16
2175.50    0.241   152.99
2176.50    0.244   153.80
2177.50    0.247   154.60
2178.50    0.249   155.38
2179.50    0.252   156.15
2180.50    0.255   156.89
2181.50    0.257   157.63
2182.50    0.260   158.34
2183.50    0.263   159.04
2184.50    0.266   159.73
2185.50    0.269   160.40
2186.50    0.271   161.06
2187.50    0.274   161.70
2188.50    0.277   162.33
2189.50    0.280   162.95
2190.50    0.283   163.56
2191.50    0.286   164.15
2192.50    0.289   164.73
2193.50    0.292   165.29
2194.50    0.295   165.85
2195.50    0.299   166.39
2196.50    0.302   166.92
2197.50    0.305   167.44
2198.50    0.308   167.95
2199.50    0.311   168.45
2200.50    0.314   168.95
2201.50    0.318   169.43
2202.50    0.321   169.90
2203.50    0.324   170.36
2204.50    0.327   170.81
2205.50    0.330   171.25
2206.50    0.334   171.69
2207.50    0.337   172.11
2208.50    0.340   172.53
2209.50    0.344   172.94
2210.50    0.347   173.35
2211.50    0.350   173.74
2212.50    0.353   174.13
2213.50    0.357   174.51
2214.50    0.360   174.88
2215.50    0.363   175.25
2216.50    0.367   175.61
2217.50    0.370   175.96
2218.50    0.373   176.31
2219.50    0.377   176.65
2220.50    0.380   176.98
2221.50    0.383   177.31
2222.50    0.387   177.63
2223.50    0.390   177.95
2224.50    0.394   178.26
2225.50    0.397   178.57
2226.50    0.400   178.87
2227.50    0.404   179.17
2228.50    0.407   179.46
2229.50    0.410   179.75
2230.50    0.414   180.03
2231.50    0.417   180.31
2232.50    0.420   180.58
2233.50    0.424   180.85
2234.50    0.427   181.11
2235.50    0.431   181.38
2236.50    0.434   181.63
2237.50    0.437   181.88
2238.50    0.441   182.13
2239.50    0.444   182.38
2240.50    0.447   182.62
2241.50    0.451   182.86
2242.50    0.454   183.09
2243.50    0.457   183.32
2244.50    0.461   183.55
2245.50    0.464   183.77
2246.50    0.467   184.00
2247.50    0.471   184.21
2248.50    0.474   184.43
2249.50    0.477   184.64
2250.50    0.481   184.85
2251.50    0.484   185.06
2252.50    0.487   185.26
2253.50    0.490   185.46
2254.50    0.494   185.66
2255.50    0.497   185.85
2256.50    0.500   186.05
2257.50    0.503   186.24
2258.50    0.507   186.42
2259.50    0.510   186.61
2260.50    0.513   186.79
2261.50    0.516   186.97
2262.50    0.520   187.15
2263.50    0.523   187.33
2264.50    0.526   187.50
2265.50    0.529   187.67
2266.50    0.532   187.85
2267.50    0.536   188.01
2268.50    0.539   188.18
2269.50    0.542   188.34
2270.50    0.545   188.51
2271.50    0.548   188.67
2272.50    0.551   188.82
2273.50    0.554   188.98
2274.50    0.558   189.14
2275.50    0.561   189.29
2276.50    0.564   189.44
2277.50    0.567   189.59
2278.50    0.570   189.74
2279.50    0.573   189.89
2280.50    0.576   190.03
2281.50    0.579   190.18
2282.50    0.582   190.32
2283.50    0.585   190.46
2284.50    0.588   190.60
2285.50    0.591   190.74
2286.50    0.594   190.87
2287.50    0.597   191.01
2288.50    0.600   191.14
2289.50    0.603   191.27
2290.50    0.606   191.40
2291.50    0.609   191.53
2292.50    0.612   191.66
2293.50    0.615   191.79
2294.50    0.617   191.92
2295.50    0.620   192.04
2296.50    0.623   192.17
2297.50    0.626   192.29
2298.50    0.629   192.41
2299.50    0.632   192.53
2300.50    0.634   192.65
2301.50    0.637   192.77
2302.50    0.640   192.89
2303.50    0.643   193.00
2304.50    0.645   193.12
2305.50    0.648   193.23
2306.50    0.651   193.35
2307.50    0.654   193.46
2308.50    0.656   193.57
2309.50    0.659   193.68
2310.50    0.662   193.79
2311.50    0.664   193.90
2312.50    0.667   194.01
2313.50    0.669   194.12
2314.50    0.672   194.22
2315.50    0.675   194.33
2316.50    0.677   194.44
2317.50    0.680   194.54
2318.50    0.682   194.64
2319.50    0.685   194.75
2320.50    0.687   194.85
2321.50    0.690   194.95
2322.50    0.692   195.05
2323.50    0.695   195.15
2324.50    0.697   195.25
2325.50    0.699   195.35
2326.50    0.702   195.44
2327.50    0.704   195.54
2328.50    0.706   195.64
2329.50    0.709   195.73
2330.50    0.711   195.83
2331.50    0.713   195.92
2332.50    0.716   196.02
2333.50    0.718   196.11
2334.50    0.720   196.20
2335.50    0.722   196.29
2336.50    0.725   196.39
2337.50    0.727   196.48
2338.50    0.729   196.57
2339.50    0.731   196.66
2340.50    0.733   196.75
2341.50    0.735   196.84
2342.50    0.737   196.92
2343.50    0.739   197.01
2344.50    0.741   197.10
2345.50    0.743   197.19
2346.50    0.745   197.27
2347.50    0.747   197.36
2348.50    0.749   197.44
2349.50    0.751   197.53
2350.50    0.753   197.61






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 15:00:31



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