Double Star Calculator - Orbit

Orbital Elements for HO208
WDS: HO208 WDS ID/Discoverer
P: 649.641 Orbital period (years)
a: 2.20987 Semi-major axis (arcseconds)
i: 103.903 Inclination (degrees)
Ω: 175.491 Longitude of ascending node (degrees)
T: 2054.937 Epoch of periastron passage (year)
e: 0.77651 Eccentricity
ω: 76.124 Longitude of periastron (degrees)
Start-Year: 1700.1795 Year
End-Year: 2349.8205 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HO208
Position: 000129.19+304408.7 Epoch-2000 right ascension and declination
WDS-ID: 00015+3044 WDS designation
Discoverer Code: HO208 Discover designation and components
ADS number: 17167 Aitken Double Star catalog
HD number: 224882 HD catalog number
Hipparcos number: 114 Hipparcos catalog number
V1: 8.20 Magnitude of the primary
V2: 9.81 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for HO208



WDS 6th Orbit including measures of HO208

-- 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 HO208
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.971   183.06
--------------------------
1700.18    1.461   317.67
1701.18    1.456   317.48
1702.18    1.451   317.29
1703.18    1.447   317.09
1704.18    1.442   316.90
1705.18    1.437   316.70
1706.18    1.432   316.50
1707.18    1.427   316.30
1708.18    1.422   316.10
1709.18    1.417   315.89
1710.18    1.412   315.69
1711.18    1.407   315.48
1712.18    1.402   315.27
1713.18    1.397   315.07
1714.18    1.393   314.85
1715.18    1.388   314.64
1716.18    1.383   314.43
1717.18    1.378   314.21
1718.18    1.373   314.00
1719.18    1.368   313.78
1720.18    1.363   313.56
1721.18    1.358   313.34
1722.18    1.353   313.11
1723.18    1.348   312.89
1724.18    1.343   312.66
1725.18    1.338   312.44
1726.18    1.333   312.21
1727.18    1.328   311.97
1728.18    1.323   311.74
1729.18    1.318   311.51
1730.18    1.313   311.27
1731.18    1.308   311.03
1732.18    1.303   310.79
1733.18    1.298   310.55
1734.18    1.293   310.30
1735.18    1.288   310.06
1736.18    1.283   309.81
1737.18    1.278   309.56
1738.18    1.273   309.31
1739.18    1.268   309.06
1740.18    1.263   308.80
1741.18    1.259   308.54
1742.18    1.254   308.28
1743.18    1.249   308.02
1744.18    1.244   307.76
1745.18    1.239   307.49
1746.18    1.234   307.22
1747.18    1.229   306.95
1748.18    1.224   306.68
1749.18    1.219   306.41
1750.18    1.214   306.13
1751.18    1.209   305.85
1752.18    1.205   305.57
1753.18    1.200   305.29
1754.18    1.195   305.00
1755.18    1.190   304.71
1756.18    1.185   304.42
1757.18    1.180   304.13
1758.18    1.176   303.83
1759.18    1.171   303.54
1760.18    1.166   303.23
1761.18    1.161   302.93
1762.18    1.156   302.63
1763.18    1.152   302.32
1764.18    1.147   302.01
1765.18    1.142   301.70
1766.18    1.137   301.38
1767.18    1.133   301.06
1768.18    1.128   300.74
1769.18    1.123   300.42
1770.18    1.119   300.09
1771.18    1.114   299.76
1772.18    1.110   299.43
1773.18    1.105   299.10
1774.18    1.100   298.76
1775.18    1.096   298.42
1776.18    1.091   298.08
1777.18    1.087   297.73
1778.18    1.082   297.39
1779.18    1.078   297.03
1780.18    1.073   296.68
1781.18    1.069   296.32
1782.18    1.065   295.96
1783.18    1.060   295.60
1784.18    1.056   295.23
1785.18    1.052   294.87
1786.18    1.047   294.49
1787.18    1.043   294.12
1788.18    1.039   293.74
1789.18    1.034   293.36
1790.18    1.030   292.97
1791.18    1.026   292.59
1792.18    1.022   292.20
1793.18    1.018   291.80
1794.18    1.014   291.40
1795.18    1.010   291.00
1796.18    1.006   290.60
1797.18    1.002   290.19
1798.18    0.998   289.78
1799.18    0.994   289.37
1800.18    0.990   288.95
1801.18    0.986   288.53
1802.18    0.982   288.11
1803.18    0.979   287.69
1804.18    0.975   287.26
1805.18    0.971   286.82
1806.18    0.967   286.39
1807.18    0.964   285.95
1808.18    0.960   285.50
1809.18    0.957   285.06
1810.18    0.953   284.61
1811.18    0.950   284.16
1812.18    0.946   283.70
1813.18    0.943   283.24
1814.18    0.939   282.78
1815.18    0.936   282.31
1816.18    0.933   281.84
1817.18    0.930   281.37
1818.18    0.927   280.90
1819.18    0.923   280.42
1820.18    0.920   279.93
1821.18    0.917   279.45
1822.18    0.914   278.96
1823.18    0.911   278.47
1824.18    0.909   277.97
1825.18    0.906   277.48
1826.18    0.903   276.98
1827.18    0.900   276.47
1828.18    0.898   275.96
1829.18    0.895   275.45
1830.18    0.892   274.94
1831.18    0.890   274.43
1832.18    0.887   273.91
1833.18    0.885   273.38
1834.18    0.883   272.86
1835.18    0.880   272.33
1836.18    0.878   271.80
1837.18    0.876   271.27
1838.18    0.874   270.73
1839.18    0.872   270.20
1840.18    0.870   269.66
1841.18    0.868   269.11
1842.18    0.866   268.57
1843.18    0.864   268.02
1844.18    0.862   267.47
1845.18    0.861   266.92
1846.18    0.859   266.36
1847.18    0.857   265.81
1848.18    0.856   265.25
1849.18    0.854   264.69
1850.18    0.853   264.13
1851.18    0.852   263.56
1852.18    0.850   263.00
1853.18    0.849   262.43
1854.18    0.848   261.86
1855.18    0.847   261.29
1856.18    0.846   260.72
1857.18    0.845   260.14
1858.18    0.844   259.57
1859.18    0.843   258.99
1860.18    0.843   258.42
1861.18    0.842   257.84
1862.18    0.841   257.26
1863.18    0.841   256.68
1864.18    0.840   256.10
1865.18    0.840   255.52
1866.18    0.839   254.94
1867.18    0.839   254.36
1868.18    0.839   253.78
1869.18    0.839   253.19
1870.18    0.839   252.61
1871.18    0.839   252.03
1872.18    0.839   251.45
1873.18    0.839   250.86
1874.18    0.839   250.28
1875.18    0.839   249.70
1876.18    0.839   249.12
1877.18    0.840   248.54
1878.18    0.840   247.95
1879.18    0.841   247.37
1880.18    0.841   246.79
1881.18    0.842   246.22
1882.18    0.842   245.64
1883.18    0.843   245.06
1884.18    0.844   244.49
1885.18    0.845   243.91
1886.18    0.846   243.34
1887.18    0.847   242.77
1888.18    0.848   242.19
1889.18    0.849   241.62
1890.18    0.850   241.06
1891.18    0.851   240.49
1892.18    0.852   239.93
1893.18    0.854   239.36
1894.18    0.855   238.80
1895.18    0.857   238.24
1896.18    0.858   237.69
1897.18    0.860   237.13
1898.18    0.861   236.58
1899.18    0.863   236.03
1900.18    0.865   235.48
1901.18    0.866   234.93
1902.18    0.868   234.38
1903.18    0.870   233.84
1904.18    0.872   233.30
1905.18    0.874   232.76
1906.18    0.876   232.23
1907.18    0.878   231.70
1908.18    0.880   231.17
1909.18    0.882   230.64
1910.18    0.884   230.11
1911.18    0.887   229.59
1912.18    0.889   229.07
1913.18    0.891   228.55
1914.18    0.893   228.04
1915.18    0.896   227.53
1916.18    0.898   227.02
1917.18    0.901   226.51
1918.18    0.903   226.01
1919.18    0.906   225.51
1920.18    0.908   225.01
1921.18    0.911   224.51
1922.18    0.913   224.02
1923.18    0.916   223.53
1924.18    0.919   223.04
1925.18    0.922   222.56
1926.18    0.924   222.08
1927.18    0.927   221.60
1928.18    0.930   221.13
1929.18    0.933   220.65
1930.18    0.935   220.18
1931.18    0.938   219.72
1932.18    0.941   219.25
1933.18    0.944   218.79
1934.18    0.947   218.33
1935.18    0.950   217.88
1936.18    0.953   217.43
1937.18    0.956   216.98
1938.18    0.959   216.53
1939.18    0.962   216.08
1940.18    0.965   215.64
1941.18    0.968   215.20
1942.18    0.971   214.77
1943.18    0.973   214.33
1944.18    0.976   213.90
1945.18    0.979   213.47
1946.18    0.982   213.05
1947.18    0.985   212.62
1948.18    0.988   212.20
1949.18    0.991   211.79
1950.18    0.994   211.37
1951.18    0.997   210.96
1952.18    1.000   210.55
1953.18    1.003   210.14
1954.18    1.006   209.73
1955.18    1.009   209.33
1956.18    1.012   208.93
1957.18    1.015   208.53
1958.18    1.018   208.13
1959.18    1.021   207.74
1960.18    1.023   207.34
1961.18    1.026   206.95
1962.18    1.029   206.57
1963.18    1.032   206.18
1964.18    1.034   205.80
1965.18    1.037   205.41
1966.18    1.040   205.03
1967.18    1.042   204.66
1968.18    1.045   204.28
1969.18    1.047   203.91
1970.18    1.050   203.53
1971.18    1.052   203.16
1972.18    1.054   202.79
1973.18    1.057   202.43
1974.18    1.059   202.06
1975.18    1.061   201.69
1976.18    1.063   201.33
1977.18    1.065   200.97
1978.18    1.067   200.61
1979.18    1.069   200.25
1980.18    1.071   199.89
1981.18    1.073   199.54
1982.18    1.075   199.18
1983.18    1.076   198.83
1984.18    1.078   198.47
1985.18    1.079   198.12
1986.18    1.080   197.77
1987.18    1.082   197.42
1988.18    1.083   197.07
1989.18    1.084   196.72
1990.18    1.085   196.37
1991.18    1.086   196.02
1992.18    1.086   195.68
1993.18    1.087   195.33
1994.18    1.087   194.98
1995.18    1.087   194.64
1996.18    1.087   194.29
1997.18    1.087   193.94
1998.18    1.087   193.60
1999.18    1.087   193.25
2000.18    1.086   192.90
2001.18    1.085   192.55
2002.18    1.085   192.21
2003.18    1.083   191.86
2004.18    1.082   191.51
2005.18    1.081   191.16
2006.18    1.079   190.81
2007.18    1.077   190.45
2008.18    1.074   190.10
2009.18    1.072   189.74
2010.18    1.069   189.39
2011.18    1.066   189.03
2012.18    1.063   188.67
2013.18    1.059   188.30
2014.18    1.055   187.93
2015.18    1.051   187.57
2016.18    1.046   187.19
2017.18    1.041   186.82
2018.18    1.035   186.44
2019.18    1.029   186.05
2020.18    1.023   185.66
2021.18    1.016   185.27
2022.18    1.009   184.87
2023.18    1.001   184.46
2024.18    0.992   184.05
2025.18    0.983   183.63
2026.18    0.974   183.20
2027.18    0.963   182.77
2028.18    0.952   182.32
2029.18    0.941   181.86
2030.18    0.928   181.39
2031.18    0.915   180.91
2032.18    0.900   180.41
2033.18    0.885   179.90
2034.18    0.868   179.37
2035.18    0.851   178.81
2036.18    0.832   178.23
2037.18    0.812   177.63
2038.18    0.791   176.99
2039.18    0.768   176.31
2040.18    0.743   175.60
2041.18    0.717   174.83
2042.18    0.689   174.00
2043.18    0.659   173.10
2044.18    0.627   172.11
2045.18    0.593   171.00
2046.18    0.556   169.76
2047.18    0.518   168.34
2048.18    0.477   166.68
2049.18    0.434   164.70
2050.18    0.388   162.27
2051.18    0.341   159.18
2052.18    0.293   155.07
2053.18    0.244   149.34
2054.18    0.197   140.83
2055.18    0.156   127.42
2056.18    0.127   106.30
2057.18    0.121    78.71
2058.18    0.142    54.23
2059.18    0.180    37.96
2060.18    0.225    27.78
2061.18    0.274    21.13
2062.18    0.324    16.51
2063.18    0.373    13.11
2064.18    0.422    10.51
2065.18    0.469     8.44
2066.18    0.515     6.74
2067.18    0.560     5.32
2068.18    0.603     4.11
2069.18    0.645     3.06
2070.18    0.685     2.13
2071.18    0.723     1.30
2072.18    0.761     0.56
2073.18    0.797   359.88
2074.18    0.831   359.26
2075.18    0.865   358.69
2076.18    0.897   358.17
2077.18    0.928   357.67
2078.18    0.958   357.21
2079.18    0.987   356.78
2080.18    1.016   356.37
2081.18    1.043   355.99
2082.18    1.069   355.62
2083.18    1.094   355.27
2084.18    1.119   354.93
2085.18    1.143   354.61
2086.18    1.166   354.31
2087.18    1.189   354.01
2088.18    1.210   353.73
2089.18    1.231   353.45
2090.18    1.252   353.18
2091.18    1.272   352.93
2092.18    1.291   352.68
2093.18    1.310   352.44
2094.18    1.328   352.20
2095.18    1.346   351.97
2096.18    1.363   351.75
2097.18    1.380   351.53
2098.18    1.397   351.32
2099.18    1.412   351.11
2100.18    1.428   350.91
2101.18    1.443   350.71
2102.18    1.458   350.51
2103.18    1.472   350.32
2104.18    1.486   350.13
2105.18    1.499   349.95
2106.18    1.513   349.77
2107.18    1.526   349.59
2108.18    1.538   349.42
2109.18    1.550   349.25
2110.18    1.562   349.08
2111.18    1.574   348.91
2112.18    1.585   348.75
2113.18    1.596   348.58
2114.18    1.607   348.42
2115.18    1.618   348.27
2116.18    1.628   348.11
2117.18    1.638   347.96
2118.18    1.648   347.81
2119.18    1.657   347.66
2120.18    1.666   347.51
2121.18    1.676   347.36
2122.18    1.684   347.22
2123.18    1.693   347.07
2124.18    1.701   346.93
2125.18    1.709   346.79
2126.18    1.717   346.65
2127.18    1.725   346.51
2128.18    1.733   346.37
2129.18    1.740   346.24
2130.18    1.747   346.10
2131.18    1.754   345.97
2132.18    1.761   345.84
2133.18    1.768   345.71
2134.18    1.774   345.58
2135.18    1.781   345.45
2136.18    1.787   345.32
2137.18    1.793   345.19
2138.18    1.799   345.06
2139.18    1.804   344.94
2140.18    1.810   344.81
2141.18    1.815   344.69
2142.18    1.821   344.56
2143.18    1.826   344.44
2144.18    1.831   344.32
2145.18    1.835   344.19
2146.18    1.840   344.07
2147.18    1.845   343.95
2148.18    1.849   343.83
2149.18    1.853   343.71
2150.18    1.857   343.59
2151.18    1.861   343.47
2152.18    1.865   343.36
2153.18    1.869   343.24
2154.18    1.873   343.12
2155.18    1.876   343.01
2156.18    1.880   342.89
2157.18    1.883   342.77
2158.18    1.886   342.66
2159.18    1.889   342.54
2160.18    1.892   342.43
2161.18    1.895   342.31
2162.18    1.898   342.20
2163.18    1.901   342.09
2164.18    1.903   341.97
2165.18    1.906   341.86
2166.18    1.908   341.75
2167.18    1.910   341.64
2168.18    1.913   341.52
2169.18    1.915   341.41
2170.18    1.917   341.30
2171.18    1.919   341.19
2172.18    1.920   341.08
2173.18    1.922   340.97
2174.18    1.924   340.86
2175.18    1.925   340.74
2176.18    1.927   340.63
2177.18    1.928   340.52
2178.18    1.930   340.41
2179.18    1.931   340.30
2180.18    1.932   340.19
2181.18    1.933   340.08
2182.18    1.934   339.97
2183.18    1.935   339.87
2184.18    1.936   339.76
2185.18    1.936   339.65
2186.18    1.937   339.54
2187.18    1.938   339.43
2188.18    1.938   339.32
2189.18    1.939   339.21
2190.18    1.939   339.10
2191.18    1.939   338.99
2192.18    1.940   338.88
2193.18    1.940   338.77
2194.18    1.940   338.67
2195.18    1.940   338.56
2196.18    1.940   338.45
2197.18    1.940   338.34
2198.18    1.940   338.23
2199.18    1.940   338.12
2200.18    1.939   338.01
2201.18    1.939   337.90
2202.18    1.939   337.79
2203.18    1.938   337.69
2204.18    1.938   337.58
2205.18    1.937   337.47
2206.18    1.936   337.36
2207.18    1.936   337.25
2208.18    1.935   337.14
2209.18    1.934   337.03
2210.18    1.933   336.92
2211.18    1.932   336.81
2212.18    1.931   336.70
2213.18    1.930   336.59
2214.18    1.929   336.48
2215.18    1.928   336.37
2216.18    1.927   336.26
2217.18    1.926   336.15
2218.18    1.925   336.04
2219.18    1.923   335.93
2220.18    1.922   335.82
2221.18    1.920   335.71
2222.18    1.919   335.60
2223.18    1.917   335.48
2224.18    1.916   335.37
2225.18    1.914   335.26
2226.18    1.912   335.15
2227.18    1.911   335.04
2228.18    1.909   334.92
2229.18    1.907   334.81
2230.18    1.905   334.70
2231.18    1.903   334.59
2232.18    1.901   334.47
2233.18    1.899   334.36
2234.18    1.897   334.25
2235.18    1.895   334.13
2236.18    1.893   334.02
2237.18    1.891   333.90
2238.18    1.889   333.79
2239.18    1.887   333.67
2240.18    1.884   333.56
2241.18    1.882   333.44
2242.18    1.880   333.33
2243.18    1.877   333.21
2244.18    1.875   333.09
2245.18    1.872   332.98
2246.18    1.870   332.86
2247.18    1.867   332.74
2248.18    1.865   332.63
2249.18    1.862   332.51
2250.18    1.859   332.39
2251.18    1.857   332.27
2252.18    1.854   332.15
2253.18    1.851   332.03
2254.18    1.848   331.91
2255.18    1.845   331.79
2256.18    1.842   331.67
2257.18    1.840   331.55
2258.18    1.837   331.43
2259.18    1.834   331.31
2260.18    1.831   331.19
2261.18    1.828   331.06
2262.18    1.824   330.94
2263.18    1.821   330.82
2264.18    1.818   330.69
2265.18    1.815   330.57
2266.18    1.812   330.44
2267.18    1.809   330.32
2268.18    1.805   330.19
2269.18    1.802   330.07
2270.18    1.799   329.94
2271.18    1.795   329.81
2272.18    1.792   329.69
2273.18    1.788   329.56
2274.18    1.785   329.43
2275.18    1.782   329.30
2276.18    1.778   329.17
2277.18    1.775   329.04
2278.18    1.771   328.91
2279.18    1.767   328.78
2280.18    1.764   328.65
2281.18    1.760   328.52
2282.18    1.756   328.39
2283.18    1.753   328.25
2284.18    1.749   328.12
2285.18    1.745   327.99
2286.18    1.741   327.85
2287.18    1.738   327.71
2288.18    1.734   327.58
2289.18    1.730   327.44
2290.18    1.726   327.31
2291.18    1.722   327.17
2292.18    1.718   327.03
2293.18    1.714   326.89
2294.18    1.710   326.75
2295.18    1.706   326.61
2296.18    1.702   326.47
2297.18    1.698   326.33
2298.18    1.694   326.18
2299.18    1.690   326.04
2300.18    1.686   325.90
2301.18    1.682   325.75
2302.18    1.678   325.61
2303.18    1.674   325.46
2304.18    1.670   325.32
2305.18    1.665   325.17
2306.18    1.661   325.02
2307.18    1.657   324.87
2308.18    1.653   324.72
2309.18    1.648   324.57
2310.18    1.644   324.42
2311.18    1.640   324.27
2312.18    1.635   324.12
2313.18    1.631   323.96
2314.18    1.627   323.81
2315.18    1.622   323.65
2316.18    1.618   323.50
2317.18    1.613   323.34
2318.18    1.609   323.18
2319.18    1.604   323.02
2320.18    1.600   322.86
2321.18    1.596   322.70
2322.18    1.591   322.54
2323.18    1.586   322.38
2324.18    1.582   322.21
2325.18    1.577   322.05
2326.18    1.573   321.89
2327.18    1.568   321.72
2328.18    1.564   321.55
2329.18    1.559   321.38
2330.18    1.554   321.22
2331.18    1.550   321.05
2332.18    1.545   320.87
2333.18    1.540   320.70
2334.18    1.536   320.53
2335.18    1.531   320.35
2336.18    1.526   320.18
2337.18    1.522   320.00
2338.18    1.517   319.83
2339.18    1.512   319.65
2340.18    1.507   319.47
2341.18    1.503   319.29
2342.18    1.498   319.10
2343.18    1.493   318.92
2344.18    1.488   318.74
2345.18    1.484   318.55
2346.18    1.479   318.36
2347.18    1.474   318.18
2348.18    1.469   317.99
2349.18    1.464   317.80






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 14:33:57



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