Double Star Calculator - Orbit

Orbital Elements for I506
WDS: I506 WDS ID/Discoverer
P: 585.000 Orbital period (years)
a: 1.94 Semi-major axis (arcseconds)
i: 71.3 Inclination (degrees)
Ω: 87.6 Longitude of ascending node (degrees)
T: 2460.000 Epoch of periastron passage (year)
e: 0.634 Eccentricity
ω: 301.3 Longitude of periastron (degrees)
Start-Year: 1732.5 Year
End-Year: 2317.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I506
Position: 111904.62-310022.3 Epoch-2000 right ascension and declination
WDS-ID: 11191-3100 WDS designation
Discoverer Code: I506 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 98415 HD catalog number
Hipparcos number: 55258 Hipparcos catalog number
V1: 8.24 Magnitude of the primary
V2: 9.37 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1991 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: USN2002 Reference

Double Star Orbit for I506



WDS 6th Orbit including measures of I506

-- 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 I506
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.848   186.19
--------------------------
1732.50    2.282   258.02
1733.50    2.279   258.13
1734.50    2.276   258.24
1735.50    2.273   258.36
1736.50    2.270   258.47
1737.50    2.267   258.58
1738.50    2.263   258.69
1739.50    2.260   258.80
1740.50    2.256   258.92
1741.50    2.252   259.03
1742.50    2.248   259.14
1743.50    2.244   259.26
1744.50    2.240   259.37
1745.50    2.236   259.48
1746.50    2.232   259.60
1747.50    2.227   259.72
1748.50    2.222   259.83
1749.50    2.218   259.95
1750.50    2.213   260.06
1751.50    2.208   260.18
1752.50    2.203   260.30
1753.50    2.197   260.42
1754.50    2.192   260.54
1755.50    2.186   260.66
1756.50    2.181   260.78
1757.50    2.175   260.90
1758.50    2.169   261.02
1759.50    2.163   261.14
1760.50    2.156   261.27
1761.50    2.150   261.39
1762.50    2.144   261.52
1763.50    2.137   261.64
1764.50    2.130   261.77
1765.50    2.123   261.89
1766.50    2.116   262.02
1767.50    2.108   262.15
1768.50    2.101   262.28
1769.50    2.093   262.41
1770.50    2.086   262.54
1771.50    2.078   262.67
1772.50    2.069   262.81
1773.50    2.061   262.94
1774.50    2.053   263.08
1775.50    2.044   263.22
1776.50    2.035   263.35
1777.50    2.026   263.49
1778.50    2.017   263.63
1779.50    2.008   263.78
1780.50    1.998   263.92
1781.50    1.988   264.06
1782.50    1.979   264.21
1783.50    1.968   264.36
1784.50    1.958   264.51
1785.50    1.948   264.66
1786.50    1.937   264.81
1787.50    1.926   264.96
1788.50    1.915   265.12
1789.50    1.904   265.28
1790.50    1.892   265.43
1791.50    1.880   265.60
1792.50    1.868   265.76
1793.50    1.856   265.93
1794.50    1.844   266.09
1795.50    1.831   266.26
1796.50    1.818   266.44
1797.50    1.805   266.61
1798.50    1.792   266.79
1799.50    1.778   266.97
1800.50    1.764   267.15
1801.50    1.750   267.34
1802.50    1.736   267.53
1803.50    1.721   267.72
1804.50    1.706   267.91
1805.50    1.691   268.11
1806.50    1.676   268.32
1807.50    1.660   268.52
1808.50    1.644   268.73
1809.50    1.628   268.95
1810.50    1.611   269.17
1811.50    1.594   269.39
1812.50    1.577   269.62
1813.50    1.559   269.85
1814.50    1.542   270.09
1815.50    1.524   270.34
1816.50    1.505   270.59
1817.50    1.486   270.84
1818.50    1.467   271.11
1819.50    1.448   271.38
1820.50    1.428   271.65
1821.50    1.408   271.94
1822.50    1.387   272.23
1823.50    1.366   272.54
1824.50    1.345   272.85
1825.50    1.324   273.17
1826.50    1.302   273.50
1827.50    1.279   273.85
1828.50    1.256   274.21
1829.50    1.233   274.58
1830.50    1.210   274.96
1831.50    1.186   275.36
1832.50    1.161   275.78
1833.50    1.136   276.21
1834.50    1.111   276.67
1835.50    1.085   277.15
1836.50    1.059   277.65
1837.50    1.033   278.17
1838.50    1.006   278.72
1839.50    0.978   279.31
1840.50    0.950   279.93
1841.50    0.922   280.58
1842.50    0.893   281.28
1843.50    0.864   282.02
1844.50    0.834   282.82
1845.50    0.804   283.68
1846.50    0.773   284.60
1847.50    0.742   285.60
1848.50    0.711   286.69
1849.50    0.679   287.88
1850.50    0.647   289.18
1851.50    0.615   290.63
1852.50    0.583   292.23
1853.50    0.550   294.02
1854.50    0.518   296.03
1855.50    0.485   298.32
1856.50    0.453   300.93
1857.50    0.422   303.94
1858.50    0.391   307.42
1859.50    0.361   311.50
1860.50    0.333   316.28
1861.50    0.307   321.90
1862.50    0.284   328.50
1863.50    0.265   336.15
1864.50    0.251   344.82
1865.50    0.243   354.30
1866.50    0.241     4.17
1867.50    0.246    13.91
1868.50    0.257    23.04
1869.50    0.273    31.25
1870.50    0.294    38.40
1871.50    0.318    44.55
1872.50    0.345    49.78
1873.50    0.373    54.25
1874.50    0.402    58.08
1875.50    0.432    61.39
1876.50    0.462    64.27
1877.50    0.492    66.79
1878.50    0.522    69.03
1879.50    0.551    71.03
1880.50    0.580    72.82
1881.50    0.607    74.45
1882.50    0.634    75.94
1883.50    0.661    77.31
1884.50    0.686    78.58
1885.50    0.710    79.76
1886.50    0.733    80.86
1887.50    0.755    81.90
1888.50    0.775    82.88
1889.50    0.795    83.82
1890.50    0.814    84.70
1891.50    0.832    85.55
1892.50    0.848    86.36
1893.50    0.864    87.15
1894.50    0.879    87.90
1895.50    0.892    88.64
1896.50    0.905    89.35
1897.50    0.917    90.04
1898.50    0.928    90.71
1899.50    0.939    91.37
1900.50    0.948    92.02
1901.50    0.957    92.65
1902.50    0.965    93.27
1903.50    0.972    93.89
1904.50    0.979    94.49
1905.50    0.985    95.08
1906.50    0.990    95.67
1907.50    0.995    96.26
1908.50    1.000    96.83
1909.50    1.003    97.40
1910.50    1.007    97.97
1911.50    1.010    98.54
1912.50    1.012    99.10
1913.50    1.014    99.66
1914.50    1.016   100.22
1915.50    1.017   100.77
1916.50    1.017   101.33
1917.50    1.018   101.88
1918.50    1.018   102.44
1919.50    1.018   102.99
1920.50    1.017   103.55
1921.50    1.017   104.10
1922.50    1.015   104.66
1923.50    1.014   105.22
1924.50    1.013   105.77
1925.50    1.011   106.34
1926.50    1.009   106.90
1927.50    1.007   107.46
1928.50    1.004   108.03
1929.50    1.002   108.60
1930.50    0.999   109.18
1931.50    0.996   109.75
1932.50    0.993   110.33
1933.50    0.990   110.92
1934.50    0.986   111.51
1935.50    0.983   112.10
1936.50    0.979   112.70
1937.50    0.976   113.30
1938.50    0.972   113.90
1939.50    0.968   114.51
1940.50    0.964   115.13
1941.50    0.960   115.75
1942.50    0.956   116.38
1943.50    0.952   117.01
1944.50    0.947   117.64
1945.50    0.943   118.29
1946.50    0.939   118.94
1947.50    0.934   119.59
1948.50    0.930   120.25
1949.50    0.926   120.92
1950.50    0.921   121.59
1951.50    0.917   122.27
1952.50    0.912   122.96
1953.50    0.908   123.65
1954.50    0.904   124.35
1955.50    0.899   125.06
1956.50    0.895   125.77
1957.50    0.891   126.49
1958.50    0.886   127.22
1959.50    0.882   127.95
1960.50    0.878   128.70
1961.50    0.873   129.44
1962.50    0.869   130.20
1963.50    0.865   130.96
1964.50    0.861   131.73
1965.50    0.857   132.51
1966.50    0.853   133.30
1967.50    0.849   134.09
1968.50    0.846   134.89
1969.50    0.842   135.70
1970.50    0.838   136.51
1971.50    0.835   137.33
1972.50    0.831   138.16
1973.50    0.828   138.99
1974.50    0.825   139.83
1975.50    0.822   140.68
1976.50    0.819   141.53
1977.50    0.816   142.39
1978.50    0.813   143.26
1979.50    0.810   144.13
1980.50    0.808   145.01
1981.50    0.805   145.89
1982.50    0.803   146.78
1983.50    0.801   147.67
1984.50    0.799   148.57
1985.50    0.797   149.47
1986.50    0.795   150.38
1987.50    0.793   151.29
1988.50    0.792   152.20
1989.50    0.791   153.12
1990.50    0.789   154.04
1991.50    0.788   154.96
1992.50    0.787   155.89
1993.50    0.787   156.81
1994.50    0.786   157.74
1995.50    0.786   158.67
1996.50    0.785   159.60
1997.50    0.785   160.53
1998.50    0.785   161.46
1999.50    0.785   162.40
2000.50    0.786   163.33
2001.50    0.786   164.26
2002.50    0.787   165.18
2003.50    0.788   166.11
2004.50    0.789   167.03
2005.50    0.790   167.96
2006.50    0.791   168.88
2007.50    0.793   169.79
2008.50    0.794   170.70
2009.50    0.796   171.61
2010.50    0.798   172.52
2011.50    0.800   173.42
2012.50    0.802   174.31
2013.50    0.804   175.20
2014.50    0.807   176.09
2015.50    0.810   176.96
2016.50    0.812   177.84
2017.50    0.815   178.70
2018.50    0.819   179.56
2019.50    0.822   180.42
2020.50    0.825   181.27
2021.50    0.829   182.11
2022.50    0.832   182.94
2023.50    0.836   183.76
2024.50    0.840   184.58
2025.50    0.844   185.39
2026.50    0.848   186.19
2027.50    0.853   186.99
2028.50    0.857   187.77
2029.50    0.862   188.55
2030.50    0.866   189.32
2031.50    0.871   190.08
2032.50    0.876   190.83
2033.50    0.881   191.58
2034.50    0.886   192.31
2035.50    0.891   193.04
2036.50    0.897   193.76
2037.50    0.902   194.47
2038.50    0.907   195.17
2039.50    0.913   195.86
2040.50    0.919   196.55
2041.50    0.925   197.23
2042.50    0.930   197.89
2043.50    0.936   198.55
2044.50    0.943   199.20
2045.50    0.949   199.84
2046.50    0.955   200.48
2047.50    0.961   201.10
2048.50    0.968   201.72
2049.50    0.974   202.33
2050.50    0.981   202.93
2051.50    0.987   203.53
2052.50    0.994   204.11
2053.50    1.000   204.69
2054.50    1.007   205.26
2055.50    1.014   205.82
2056.50    1.021   206.38
2057.50    1.028   206.92
2058.50    1.035   207.46
2059.50    1.042   207.99
2060.50    1.049   208.52
2061.50    1.056   209.04
2062.50    1.064   209.55
2063.50    1.071   210.05
2064.50    1.078   210.55
2065.50    1.085   211.04
2066.50    1.093   211.53
2067.50    1.100   212.00
2068.50    1.108   212.48
2069.50    1.115   212.94
2070.50    1.123   213.40
2071.50    1.130   213.85
2072.50    1.138   214.30
2073.50    1.145   214.74
2074.50    1.153   215.17
2075.50    1.161   215.60
2076.50    1.169   216.03
2077.50    1.176   216.44
2078.50    1.184   216.86
2079.50    1.192   217.26
2080.50    1.200   217.66
2081.50    1.207   218.06
2082.50    1.215   218.45
2083.50    1.223   218.84
2084.50    1.231   219.22
2085.50    1.239   219.60
2086.50    1.247   219.97
2087.50    1.255   220.34
2088.50    1.263   220.70
2089.50    1.270   221.06
2090.50    1.278   221.41
2091.50    1.286   221.76
2092.50    1.294   222.10
2093.50    1.302   222.44
2094.50    1.310   222.78
2095.50    1.318   223.11
2096.50    1.326   223.44
2097.50    1.334   223.77
2098.50    1.342   224.09
2099.50    1.350   224.40
2100.50    1.358   224.72
2101.50    1.366   225.03
2102.50    1.374   225.33
2103.50    1.382   225.63
2104.50    1.390   225.93
2105.50    1.398   226.23
2106.50    1.406   226.52
2107.50    1.414   226.81
2108.50    1.422   227.10
2109.50    1.430   227.38
2110.50    1.438   227.66
2111.50    1.446   227.93
2112.50    1.454   228.21
2113.50    1.462   228.48
2114.50    1.470   228.74
2115.50    1.477   229.01
2116.50    1.485   229.27
2117.50    1.493   229.53
2118.50    1.501   229.79
2119.50    1.509   230.04
2120.50    1.517   230.29
2121.50    1.525   230.54
2122.50    1.532   230.78
2123.50    1.540   231.03
2124.50    1.548   231.27
2125.50    1.556   231.51
2126.50    1.564   231.74
2127.50    1.571   231.98
2128.50    1.579   232.21
2129.50    1.587   232.44
2130.50    1.594   232.66
2131.50    1.602   232.89
2132.50    1.610   233.11
2133.50    1.617   233.33
2134.50    1.625   233.55
2135.50    1.633   233.77
2136.50    1.640   233.98
2137.50    1.648   234.19
2138.50    1.655   234.40
2139.50    1.663   234.61
2140.50    1.670   234.82
2141.50    1.678   235.03
2142.50    1.685   235.23
2143.50    1.692   235.43
2144.50    1.700   235.63
2145.50    1.707   235.83
2146.50    1.714   236.02
2147.50    1.722   236.22
2148.50    1.729   236.41
2149.50    1.736   236.60
2150.50    1.744   236.79
2151.50    1.751   236.98
2152.50    1.758   237.17
2153.50    1.765   237.35
2154.50    1.772   237.54
2155.50    1.779   237.72
2156.50    1.786   237.90
2157.50    1.793   238.08
2158.50    1.800   238.26
2159.50    1.807   238.43
2160.50    1.814   238.61
2161.50    1.821   238.78
2162.50    1.828   238.95
2163.50    1.835   239.12
2164.50    1.842   239.29
2165.50    1.848   239.46
2166.50    1.855   239.63
2167.50    1.862   239.80
2168.50    1.868   239.96
2169.50    1.875   240.13
2170.50    1.882   240.29
2171.50    1.888   240.45
2172.50    1.895   240.61
2173.50    1.901   240.77
2174.50    1.908   240.93
2175.50    1.914   241.09
2176.50    1.921   241.24
2177.50    1.927   241.40
2178.50    1.933   241.55
2179.50    1.940   241.70
2180.50    1.946   241.86
2181.50    1.952   242.01
2182.50    1.958   242.16
2183.50    1.964   242.31
2184.50    1.970   242.46
2185.50    1.976   242.60
2186.50    1.982   242.75
2187.50    1.988   242.90
2188.50    1.994   243.04
2189.50    2.000   243.18
2190.50    2.006   243.33
2191.50    2.012   243.47
2192.50    2.018   243.61
2193.50    2.023   243.75
2194.50    2.029   243.89
2195.50    2.035   244.03
2196.50    2.040   244.17
2197.50    2.046   244.31
2198.50    2.051   244.44
2199.50    2.057   244.58
2200.50    2.062   244.71
2201.50    2.068   244.85
2202.50    2.073   244.98
2203.50    2.078   245.12
2204.50    2.083   245.25
2205.50    2.089   245.38
2206.50    2.094   245.51
2207.50    2.099   245.64
2208.50    2.104   245.77
2209.50    2.109   245.90
2210.50    2.114   246.03
2211.50    2.119   246.16
2212.50    2.124   246.29
2213.50    2.128   246.41
2214.50    2.133   246.54
2215.50    2.138   246.67
2216.50    2.143   246.79
2217.50    2.147   246.92
2218.50    2.152   247.04
2219.50    2.156   247.17
2220.50    2.161   247.29
2221.50    2.165   247.41
2222.50    2.169   247.53
2223.50    2.174   247.66
2224.50    2.178   247.78
2225.50    2.182   247.90
2226.50    2.186   248.02
2227.50    2.190   248.14
2228.50    2.194   248.26
2229.50    2.198   248.38
2230.50    2.202   248.49
2231.50    2.206   248.61
2232.50    2.210   248.73
2233.50    2.214   248.85
2234.50    2.218   248.96
2235.50    2.221   249.08
2236.50    2.225   249.20
2237.50    2.228   249.31
2238.50    2.232   249.43
2239.50    2.235   249.54
2240.50    2.239   249.66
2241.50    2.242   249.77
2242.50    2.245   249.89
2243.50    2.248   250.00
2244.50    2.251   250.11
2245.50    2.255   250.23
2246.50    2.258   250.34
2247.50    2.260   250.45
2248.50    2.263   250.57
2249.50    2.266   250.68
2250.50    2.269   250.79
2251.50    2.272   250.90
2252.50    2.274   251.01
2253.50    2.277   251.12
2254.50    2.279   251.23
2255.50    2.282   251.34
2256.50    2.284   251.45
2257.50    2.286   251.56
2258.50    2.289   251.67
2259.50    2.291   251.78
2260.50    2.293   251.89
2261.50    2.295   252.00
2262.50    2.297   252.11
2263.50    2.299   252.22
2264.50    2.301   252.33
2265.50    2.302   252.44
2266.50    2.304   252.54
2267.50    2.306   252.65
2268.50    2.307   252.76
2269.50    2.309   252.87
2270.50    2.310   252.98
2271.50    2.311   253.08
2272.50    2.313   253.19
2273.50    2.314   253.30
2274.50    2.315   253.41
2275.50    2.316   253.51
2276.50    2.317   253.62
2277.50    2.318   253.73
2278.50    2.319   253.83
2279.50    2.319   253.94
2280.50    2.320   254.05
2281.50    2.320   254.15
2282.50    2.321   254.26
2283.50    2.321   254.37
2284.50    2.322   254.47
2285.50    2.322   254.58
2286.50    2.322   254.69
2287.50    2.322   254.79
2288.50    2.322   254.90
2289.50    2.322   255.01
2290.50    2.322   255.11
2291.50    2.322   255.22
2292.50    2.321   255.33
2293.50    2.321   255.43
2294.50    2.320   255.54
2295.50    2.320   255.65
2296.50    2.319   255.75
2297.50    2.318   255.86
2298.50    2.317   255.97
2299.50    2.316   256.07
2300.50    2.315   256.18
2301.50    2.314   256.29
2302.50    2.313   256.39
2303.50    2.311   256.50
2304.50    2.310   256.61
2305.50    2.308   256.72
2306.50    2.307   256.82
2307.50    2.305   256.93
2308.50    2.303   257.04
2309.50    2.301   257.15
2310.50    2.299   257.26
2311.50    2.297   257.37
2312.50    2.295   257.48
2313.50    2.293   257.58
2314.50    2.290   257.69
2315.50    2.288   257.80
2316.50    2.285   257.91






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 16:36:45



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