Double Star Calculator - Orbit

Orbital Elements for HO25AB
WDS: HO25AB WDS ID/Discoverer
P: 677.895 Orbital period (years)
a: 1.29578 Semi-major axis (arcseconds)
i: 87.014 Inclination (degrees)
Ω: 69.838 Longitude of ascending node (degrees)
T: 2039.440 Epoch of periastron passage (year)
e: 0.7223 Eccentricity
ω: 267.014 Longitude of periastron (degrees)
Start-Year: 1686.0527 Year
End-Year: 2363.9473 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HO25AB
Position: 062221.84+251328.5 Epoch-2000 right ascension and declination
WDS-ID: 06224+2514 WDS designation
Discoverer Code: HO25AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.17 Magnitude of the primary
V2: 10.33 Magnitude of the secondary
Equinox: Equinox
Date: 1995 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 HO25AB



WDS 6th Orbit including measures of HO25AB

-- 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 HO25AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.365   251.78
--------------------------
1686.05    0.219   101.78
1687.05    0.215   102.47
1688.05    0.211   103.18
1689.05    0.207   103.92
1690.05    0.203   104.68
1691.05    0.199   105.48
1692.05    0.195   106.31
1693.05    0.191   107.17
1694.05    0.187   108.07
1695.05    0.184   109.00
1696.05    0.180   109.97
1697.05    0.176   110.98
1698.05    0.173   112.04
1699.05    0.169   113.14
1700.05    0.166   114.28
1701.05    0.162   115.47
1702.05    0.159   116.72
1703.05    0.156   118.01
1704.05    0.153   119.36
1705.05    0.150   120.77
1706.05    0.147   122.23
1707.05    0.144   123.76
1708.05    0.141   125.35
1709.05    0.138   127.00
1710.05    0.136   128.71
1711.05    0.133   130.49
1712.05    0.131   132.33
1713.05    0.129   134.23
1714.05    0.127   136.20
1715.05    0.125   138.23
1716.05    0.123   140.32
1717.05    0.122   142.47
1718.05    0.120   144.67
1719.05    0.119   146.91
1720.05    0.118   149.20
1721.05    0.117   151.53
1722.05    0.117   153.88
1723.05    0.116   156.25
1724.05    0.116   158.64
1725.05    0.116   161.03
1726.05    0.116   163.42
1727.05    0.116   165.80
1728.05    0.117   168.16
1729.05    0.118   170.50
1730.05    0.119   172.80
1731.05    0.120   175.06
1732.05    0.121   177.27
1733.05    0.123   179.44
1734.05    0.124   181.55
1735.05    0.126   183.60
1736.05    0.128   185.59
1737.05    0.130   187.52
1738.05    0.132   189.38
1739.05    0.135   191.18
1740.05    0.137   192.92
1741.05    0.140   194.59
1742.05    0.143   196.20
1743.05    0.146   197.74
1744.05    0.149   199.23
1745.05    0.152   200.65
1746.05    0.155   202.02
1747.05    0.158   203.34
1748.05    0.161   204.60
1749.05    0.165   205.81
1750.05    0.168   206.97
1751.05    0.172   208.08
1752.05    0.175   209.15
1753.05    0.179   210.18
1754.05    0.182   211.17
1755.05    0.186   212.11
1756.05    0.190   213.02
1757.05    0.194   213.89
1758.05    0.198   214.73
1759.05    0.201   215.54
1760.05    0.205   216.32
1761.05    0.209   217.07
1762.05    0.213   217.79
1763.05    0.217   218.48
1764.05    0.221   219.15
1765.05    0.225   219.79
1766.05    0.229   220.41
1767.05    0.234   221.01
1768.05    0.238   221.59
1769.05    0.242   222.15
1770.05    0.246   222.69
1771.05    0.250   223.21
1772.05    0.254   223.72
1773.05    0.259   224.21
1774.05    0.263   224.68
1775.05    0.267   225.14
1776.05    0.271   225.58
1777.05    0.276   226.01
1778.05    0.280   226.43
1779.05    0.284   226.83
1780.05    0.288   227.22
1781.05    0.293   227.60
1782.05    0.297   227.97
1783.05    0.301   228.33
1784.05    0.306   228.68
1785.05    0.310   229.02
1786.05    0.314   229.35
1787.05    0.318   229.67
1788.05    0.323   229.98
1789.05    0.327   230.29
1790.05    0.331   230.58
1791.05    0.336   230.87
1792.05    0.340   231.15
1793.05    0.344   231.43
1794.05    0.349   231.70
1795.05    0.353   231.96
1796.05    0.358   232.21
1797.05    0.362   232.46
1798.05    0.366   232.70
1799.05    0.371   232.94
1800.05    0.375   233.17
1801.05    0.379   233.40
1802.05    0.384   233.62
1803.05    0.388   233.83
1804.05    0.392   234.04
1805.05    0.397   234.25
1806.05    0.401   234.45
1807.05    0.405   234.65
1808.05    0.409   234.84
1809.05    0.414   235.03
1810.05    0.418   235.22
1811.05    0.422   235.40
1812.05    0.427   235.58
1813.05    0.431   235.75
1814.05    0.435   235.92
1815.05    0.440   236.09
1816.05    0.444   236.26
1817.05    0.448   236.42
1818.05    0.452   236.58
1819.05    0.457   236.73
1820.05    0.461   236.89
1821.05    0.465   237.04
1822.05    0.469   237.18
1823.05    0.474   237.33
1824.05    0.478   237.47
1825.05    0.482   237.61
1826.05    0.486   237.75
1827.05    0.490   237.88
1828.05    0.495   238.01
1829.05    0.499   238.14
1830.05    0.503   238.27
1831.05    0.507   238.40
1832.05    0.511   238.52
1833.05    0.515   238.64
1834.05    0.520   238.76
1835.05    0.524   238.88
1836.05    0.528   239.00
1837.05    0.532   239.11
1838.05    0.536   239.22
1839.05    0.540   239.34
1840.05    0.544   239.44
1841.05    0.548   239.55
1842.05    0.552   239.66
1843.05    0.556   239.76
1844.05    0.560   239.87
1845.05    0.564   239.97
1846.05    0.568   240.07
1847.05    0.572   240.17
1848.05    0.576   240.26
1849.05    0.580   240.36
1850.05    0.584   240.46
1851.05    0.588   240.55
1852.05    0.592   240.64
1853.05    0.596   240.73
1854.05    0.600   240.82
1855.05    0.604   240.91
1856.05    0.607   241.00
1857.05    0.611   241.09
1858.05    0.615   241.17
1859.05    0.619   241.25
1860.05    0.623   241.34
1861.05    0.626   241.42
1862.05    0.630   241.50
1863.05    0.634   241.58
1864.05    0.638   241.66
1865.05    0.641   241.74
1866.05    0.645   241.82
1867.05    0.649   241.89
1868.05    0.652   241.97
1869.05    0.656   242.05
1870.05    0.660   242.12
1871.05    0.663   242.19
1872.05    0.667   242.27
1873.05    0.670   242.34
1874.05    0.674   242.41
1875.05    0.677   242.48
1876.05    0.681   242.55
1877.05    0.684   242.62
1878.05    0.688   242.69
1879.05    0.691   242.75
1880.05    0.695   242.82
1881.05    0.698   242.89
1882.05    0.701   242.95
1883.05    0.705   243.02
1884.05    0.708   243.08
1885.05    0.711   243.15
1886.05    0.715   243.21
1887.05    0.718   243.27
1888.05    0.721   243.33
1889.05    0.724   243.40
1890.05    0.727   243.46
1891.05    0.730   243.52
1892.05    0.734   243.58
1893.05    0.737   243.64
1894.05    0.740   243.70
1895.05    0.743   243.75
1896.05    0.746   243.81
1897.05    0.749   243.87
1898.05    0.752   243.93
1899.05    0.755   243.98
1900.05    0.757   244.04
1901.05    0.760   244.09
1902.05    0.763   244.15
1903.05    0.766   244.21
1904.05    0.769   244.26
1905.05    0.771   244.31
1906.05    0.774   244.37
1907.05    0.777   244.42
1908.05    0.779   244.47
1909.05    0.782   244.53
1910.05    0.784   244.58
1911.05    0.787   244.63
1912.05    0.789   244.68
1913.05    0.792   244.73
1914.05    0.794   244.79
1915.05    0.797   244.84
1916.05    0.799   244.89
1917.05    0.801   244.94
1918.05    0.804   244.99
1919.05    0.806   245.04
1920.05    0.808   245.09
1921.05    0.810   245.13
1922.05    0.812   245.18
1923.05    0.814   245.23
1924.05    0.816   245.28
1925.05    0.818   245.33
1926.05    0.820   245.38
1927.05    0.822   245.42
1928.05    0.824   245.47
1929.05    0.825   245.52
1930.05    0.827   245.57
1931.05    0.829   245.61
1932.05    0.830   245.66
1933.05    0.832   245.71
1934.05    0.833   245.75
1935.05    0.835   245.80
1936.05    0.836   245.84
1937.05    0.837   245.89
1938.05    0.839   245.94
1939.05    0.840   245.98
1940.05    0.841   246.03
1941.05    0.842   246.07
1942.05    0.843   246.12
1943.05    0.844   246.16
1944.05    0.845   246.21
1945.05    0.846   246.25
1946.05    0.847   246.30
1947.05    0.847   246.34
1948.05    0.848   246.39
1949.05    0.848   246.43
1950.05    0.849   246.48
1951.05    0.849   246.52
1952.05    0.850   246.57
1953.05    0.850   246.61
1954.05    0.850   246.66
1955.05    0.850   246.70
1956.05    0.850   246.74
1957.05    0.850   246.79
1958.05    0.850   246.83
1959.05    0.849   246.88
1960.05    0.849   246.92
1961.05    0.849   246.97
1962.05    0.848   247.01
1963.05    0.847   247.06
1964.05    0.847   247.10
1965.05    0.846   247.15
1966.05    0.845   247.19
1967.05    0.844   247.24
1968.05    0.842   247.28
1969.05    0.841   247.33
1970.05    0.840   247.37
1971.05    0.838   247.42
1972.05    0.836   247.46
1973.05    0.835   247.51
1974.05    0.833   247.56
1975.05    0.831   247.60
1976.05    0.828   247.65
1977.05    0.826   247.70
1978.05    0.824   247.74
1979.05    0.821   247.79
1980.05    0.818   247.84
1981.05    0.815   247.89
1982.05    0.812   247.93
1983.05    0.809   247.98
1984.05    0.805   248.03
1985.05    0.802   248.08
1986.05    0.798   248.13
1987.05    0.794   248.18
1988.05    0.790   248.23
1989.05    0.785   248.29
1990.05    0.780   248.34
1991.05    0.776   248.39
1992.05    0.770   248.45
1993.05    0.765   248.50
1994.05    0.760   248.56
1995.05    0.754   248.61
1996.05    0.748   248.67
1997.05    0.741   248.73
1998.05    0.735   248.79
1999.05    0.728   248.85
2000.05    0.721   248.91
2001.05    0.713   248.97
2002.05    0.705   249.03
2003.05    0.697   249.10
2004.05    0.689   249.17
2005.05    0.680   249.23
2006.05    0.670   249.30
2007.05    0.661   249.38
2008.05    0.651   249.45
2009.05    0.640   249.53
2010.05    0.629   249.61
2011.05    0.618   249.69
2012.05    0.606   249.78
2013.05    0.593   249.87
2014.05    0.580   249.96
2015.05    0.567   250.06
2016.05    0.553   250.16
2017.05    0.538   250.27
2018.05    0.523   250.38
2019.05    0.507   250.50
2020.05    0.490   250.63
2021.05    0.473   250.77
2022.05    0.455   250.92
2023.05    0.436   251.08
2024.05    0.416   251.26
2025.05    0.396   251.46
2026.05    0.375   251.67
2027.05    0.353   251.91
2028.05    0.330   252.19
2029.05    0.306   252.51
2030.05    0.282   252.88
2031.05    0.257   253.32
2032.05    0.231   253.87
2033.05    0.204   254.55
2034.05    0.176   255.44
2035.05    0.149   256.67
2036.05    0.120   258.47
2037.05    0.091   261.39
2038.05    0.063   266.99
2039.05    0.036   281.48
2040.05    0.019   338.48
2041.05    0.035    37.33
2042.05    0.062    52.32
2043.05    0.091    58.04
2044.05    0.119    61.01
2045.05    0.148    62.83
2046.05    0.176    64.07
2047.05    0.203    64.97
2048.05    0.230    65.65
2049.05    0.256    66.20
2050.05    0.282    66.64
2051.05    0.307    67.01
2052.05    0.331    67.33
2053.05    0.354    67.60
2054.05    0.377    67.84
2055.05    0.398    68.06
2056.05    0.419    68.25
2057.05    0.440    68.43
2058.05    0.459    68.58
2059.05    0.478    68.73
2060.05    0.496    68.87
2061.05    0.514    68.99
2062.05    0.531    69.11
2063.05    0.547    69.22
2064.05    0.563    69.32
2065.05    0.578    69.42
2066.05    0.593    69.52
2067.05    0.607    69.61
2068.05    0.620    69.69
2069.05    0.634    69.77
2070.05    0.646    69.85
2071.05    0.658    69.93
2072.05    0.670    70.00
2073.05    0.682    70.07
2074.05    0.693    70.14
2075.05    0.703    70.20
2076.05    0.713    70.27
2077.05    0.723    70.33
2078.05    0.733    70.39
2079.05    0.742    70.45
2080.05    0.751    70.51
2081.05    0.760    70.56
2082.05    0.768    70.62
2083.05    0.776    70.67
2084.05    0.784    70.73
2085.05    0.791    70.78
2086.05    0.798    70.83
2087.05    0.805    70.88
2088.05    0.812    70.93
2089.05    0.818    70.98
2090.05    0.825    71.02
2091.05    0.831    71.07
2092.05    0.836    71.12
2093.05    0.842    71.16
2094.05    0.847    71.21
2095.05    0.853    71.25
2096.05    0.858    71.30
2097.05    0.862    71.34
2098.05    0.867    71.38
2099.05    0.872    71.43
2100.05    0.876    71.47
2101.05    0.880    71.51
2102.05    0.884    71.55
2103.05    0.888    71.59
2104.05    0.891    71.63
2105.05    0.895    71.67
2106.05    0.898    71.71
2107.05    0.902    71.75
2108.05    0.905    71.79
2109.05    0.908    71.83
2110.05    0.911    71.87
2111.05    0.913    71.91
2112.05    0.916    71.95
2113.05    0.918    71.98
2114.05    0.921    72.02
2115.05    0.923    72.06
2116.05    0.925    72.10
2117.05    0.927    72.13
2118.05    0.929    72.17
2119.05    0.931    72.21
2120.05    0.932    72.25
2121.05    0.934    72.28
2122.05    0.936    72.32
2123.05    0.937    72.36
2124.05    0.938    72.39
2125.05    0.939    72.43
2126.05    0.941    72.47
2127.05    0.942    72.50
2128.05    0.943    72.54
2129.05    0.943    72.57
2130.05    0.944    72.61
2131.05    0.945    72.65
2132.05    0.945    72.68
2133.05    0.946    72.72
2134.05    0.946    72.75
2135.05    0.947    72.79
2136.05    0.947    72.83
2137.05    0.947    72.86
2138.05    0.948    72.90
2139.05    0.948    72.93
2140.05    0.948    72.97
2141.05    0.948    73.01
2142.05    0.947    73.04
2143.05    0.947    73.08
2144.05    0.947    73.11
2145.05    0.947    73.15
2146.05    0.946    73.18
2147.05    0.946    73.22
2148.05    0.945    73.26
2149.05    0.945    73.29
2150.05    0.944    73.33
2151.05    0.944    73.36
2152.05    0.943    73.40
2153.05    0.942    73.44
2154.05    0.941    73.47
2155.05    0.940    73.51
2156.05    0.939    73.55
2157.05    0.938    73.58
2158.05    0.937    73.62
2159.05    0.936    73.65
2160.05    0.935    73.69
2161.05    0.934    73.73
2162.05    0.933    73.77
2163.05    0.931    73.80
2164.05    0.930    73.84
2165.05    0.929    73.88
2166.05    0.927    73.91
2167.05    0.926    73.95
2168.05    0.924    73.99
2169.05    0.923    74.03
2170.05    0.921    74.06
2171.05    0.919    74.10
2172.05    0.918    74.14
2173.05    0.916    74.18
2174.05    0.914    74.22
2175.05    0.912    74.26
2176.05    0.911    74.29
2177.05    0.909    74.33
2178.05    0.907    74.37
2179.05    0.905    74.41
2180.05    0.903    74.45
2181.05    0.901    74.49
2182.05    0.899    74.53
2183.05    0.897    74.57
2184.05    0.894    74.61
2185.05    0.892    74.65
2186.05    0.890    74.69
2187.05    0.888    74.73
2188.05    0.885    74.77
2189.05    0.883    74.81
2190.05    0.881    74.85
2191.05    0.878    74.90
2192.05    0.876    74.94
2193.05    0.874    74.98
2194.05    0.871    75.02
2195.05    0.869    75.06
2196.05    0.866    75.11
2197.05    0.864    75.15
2198.05    0.861    75.19
2199.05    0.858    75.24
2200.05    0.856    75.28
2201.05    0.853    75.32
2202.05    0.850    75.37
2203.05    0.848    75.41
2204.05    0.845    75.46
2205.05    0.842    75.50
2206.05    0.839    75.55
2207.05    0.836    75.59
2208.05    0.834    75.64
2209.05    0.831    75.69
2210.05    0.828    75.73
2211.05    0.825    75.78
2212.05    0.822    75.83
2213.05    0.819    75.88
2214.05    0.816    75.92
2215.05    0.813    75.97
2216.05    0.810    76.02
2217.05    0.807    76.07
2218.05    0.804    76.12
2219.05    0.800    76.17
2220.05    0.797    76.22
2221.05    0.794    76.27
2222.05    0.791    76.32
2223.05    0.788    76.37
2224.05    0.784    76.43
2225.05    0.781    76.48
2226.05    0.778    76.53
2227.05    0.775    76.58
2228.05    0.771    76.64
2229.05    0.768    76.69
2230.05    0.765    76.75
2231.05    0.761    76.80
2232.05    0.758    76.86
2233.05    0.754    76.91
2234.05    0.751    76.97
2235.05    0.748    77.03
2236.05    0.744    77.09
2237.05    0.741    77.14
2238.05    0.737    77.20
2239.05    0.734    77.26
2240.05    0.730    77.32
2241.05    0.727    77.38
2242.05    0.723    77.44
2243.05    0.719    77.51
2244.05    0.716    77.57
2245.05    0.712    77.63
2246.05    0.708    77.69
2247.05    0.705    77.76
2248.05    0.701    77.82
2249.05    0.697    77.89
2250.05    0.694    77.96
2251.05    0.690    78.02
2252.05    0.686    78.09
2253.05    0.683    78.16
2254.05    0.679    78.23
2255.05    0.675    78.30
2256.05    0.671    78.37
2257.05    0.667    78.44
2258.05    0.664    78.51
2259.05    0.660    78.59
2260.05    0.656    78.66
2261.05    0.652    78.74
2262.05    0.648    78.81
2263.05    0.644    78.89
2264.05    0.640    78.97
2265.05    0.637    79.05
2266.05    0.633    79.13
2267.05    0.629    79.21
2268.05    0.625    79.29
2269.05    0.621    79.37
2270.05    0.617    79.45
2271.05    0.613    79.54
2272.05    0.609    79.63
2273.05    0.605    79.71
2274.05    0.601    79.80
2275.05    0.597    79.89
2276.05    0.593    79.98
2277.05    0.589    80.07
2278.05    0.585    80.17
2279.05    0.581    80.26
2280.05    0.576    80.36
2281.05    0.572    80.46
2282.05    0.568    80.55
2283.05    0.564    80.65
2284.05    0.560    80.76
2285.05    0.556    80.86
2286.05    0.552    80.96
2287.05    0.548    81.07
2288.05    0.543    81.18
2289.05    0.539    81.29
2290.05    0.535    81.40
2291.05    0.531    81.51
2292.05    0.527    81.63
2293.05    0.523    81.74
2294.05    0.518    81.86
2295.05    0.514    81.98
2296.05    0.510    82.11
2297.05    0.506    82.23
2298.05    0.501    82.36
2299.05    0.497    82.49
2300.05    0.493    82.62
2301.05    0.489    82.75
2302.05    0.484    82.89
2303.05    0.480    83.02
2304.05    0.476    83.16
2305.05    0.472    83.31
2306.05    0.467    83.45
2307.05    0.463    83.60
2308.05    0.459    83.75
2309.05    0.454    83.91
2310.05    0.450    84.06
2311.05    0.446    84.22
2312.05    0.442    84.39
2313.05    0.437    84.55
2314.05    0.433    84.72
2315.05    0.429    84.90
2316.05    0.424    85.07
2317.05    0.420    85.25
2318.05    0.416    85.44
2319.05    0.411    85.63
2320.05    0.407    85.82
2321.05    0.403    86.01
2322.05    0.398    86.21
2323.05    0.394    86.42
2324.05    0.389    86.63
2325.05    0.385    86.84
2326.05    0.381    87.06
2327.05    0.376    87.29
2328.05    0.372    87.51
2329.05    0.368    87.75
2330.05    0.363    87.99
2331.05    0.359    88.24
2332.05    0.355    88.49
2333.05    0.350    88.75
2334.05    0.346    89.01
2335.05    0.341    89.28
2336.05    0.337    89.56
2337.05    0.333    89.85
2338.05    0.328    90.14
2339.05    0.324    90.45
2340.05    0.320    90.76
2341.05    0.315    91.07
2342.05    0.311    91.40
2343.05    0.307    91.74
2344.05    0.302    92.08
2345.05    0.298    92.44
2346.05    0.294    92.81
2347.05    0.289    93.19
2348.05    0.285    93.57
2349.05    0.281    93.98
2350.05    0.277    94.39
2351.05    0.272    94.82
2352.05    0.268    95.26
2353.05    0.264    95.71
2354.05    0.260    96.18
2355.05    0.255    96.66
2356.05    0.251    97.16
2357.05    0.247    97.68
2358.05    0.243    98.22
2359.05    0.239    98.77
2360.05    0.235    99.34
2361.05    0.230    99.94
2362.05    0.226   100.55
2363.05    0.222   101.19






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 15:46:10



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