Double Star Calculator - Orbit

Orbital Elements for I220
WDS: I220 WDS ID/Discoverer
P: 700.000 Orbital period (years)
a: 0.464 Semi-major axis (arcseconds)
i: 68.2 Inclination (degrees)
Ω: 183.0 Longitude of ascending node (degrees)
T: 2034.220 Epoch of periastron passage (year)
e: 0.9 Eccentricity
ω: 357.2 Longitude of periastron (degrees)
Start-Year: 1675.0 Year
End-Year: 2375.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for I220
Position: 132447.94-343808.6 Epoch-2000 right ascension and declination
WDS-ID: 13248-3438 WDS designation
Discoverer Code: I220 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 116536 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.1 Magnitude of the primary
V2: 9.6 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 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: Tok2022g Reference

Double Star Orbit for I220



WDS 6th Orbit including measures of I220

-- 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 I220
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.039    69.07
--------------------------
1675.00    0.880     1.75
1676.00    0.880     1.77
1677.00    0.880     1.79
1678.00    0.880     1.82
1679.00    0.880     1.84
1680.00    0.880     1.86
1681.00    0.881     1.89
1682.00    0.881     1.91
1683.00    0.881     1.93
1684.00    0.881     1.95
1685.00    0.881     1.98
1686.00    0.881     2.00
1687.00    0.881     2.02
1688.00    0.881     2.05
1689.00    0.881     2.07
1690.00    0.881     2.09
1691.00    0.881     2.12
1692.00    0.881     2.14
1693.00    0.881     2.16
1694.00    0.881     2.19
1695.00    0.881     2.21
1696.00    0.880     2.23
1697.00    0.880     2.25
1698.00    0.880     2.28
1699.00    0.880     2.30
1700.00    0.880     2.32
1701.00    0.880     2.35
1702.00    0.880     2.37
1703.00    0.880     2.39
1704.00    0.879     2.42
1705.00    0.879     2.44
1706.00    0.879     2.46
1707.00    0.879     2.49
1708.00    0.879     2.51
1709.00    0.879     2.53
1710.00    0.878     2.56
1711.00    0.878     2.58
1712.00    0.878     2.60
1713.00    0.878     2.63
1714.00    0.877     2.65
1715.00    0.877     2.67
1716.00    0.877     2.70
1717.00    0.877     2.72
1718.00    0.876     2.74
1719.00    0.876     2.77
1720.00    0.876     2.79
1721.00    0.875     2.81
1722.00    0.875     2.84
1723.00    0.875     2.86
1724.00    0.874     2.88
1725.00    0.874     2.91
1726.00    0.873     2.93
1727.00    0.873     2.95
1728.00    0.873     2.98
1729.00    0.872     3.00
1730.00    0.872     3.02
1731.00    0.871     3.05
1732.00    0.871     3.07
1733.00    0.870     3.09
1734.00    0.870     3.12
1735.00    0.870     3.14
1736.00    0.869     3.17
1737.00    0.869     3.19
1738.00    0.868     3.21
1739.00    0.867     3.24
1740.00    0.867     3.26
1741.00    0.866     3.28
1742.00    0.866     3.31
1743.00    0.865     3.33
1744.00    0.865     3.36
1745.00    0.864     3.38
1746.00    0.864     3.40
1747.00    0.863     3.43
1748.00    0.862     3.45
1749.00    0.862     3.48
1750.00    0.861     3.50
1751.00    0.860     3.53
1752.00    0.860     3.55
1753.00    0.859     3.57
1754.00    0.858     3.60
1755.00    0.858     3.62
1756.00    0.857     3.65
1757.00    0.856     3.67
1758.00    0.856     3.70
1759.00    0.855     3.72
1760.00    0.854     3.74
1761.00    0.853     3.77
1762.00    0.853     3.79
1763.00    0.852     3.82
1764.00    0.851     3.84
1765.00    0.850     3.87
1766.00    0.849     3.89
1767.00    0.849     3.92
1768.00    0.848     3.94
1769.00    0.847     3.97
1770.00    0.846     3.99
1771.00    0.845     4.02
1772.00    0.844     4.04
1773.00    0.843     4.07
1774.00    0.843     4.09
1775.00    0.842     4.12
1776.00    0.841     4.14
1777.00    0.840     4.17
1778.00    0.839     4.19
1779.00    0.838     4.22
1780.00    0.837     4.25
1781.00    0.836     4.27
1782.00    0.835     4.30
1783.00    0.834     4.32
1784.00    0.833     4.35
1785.00    0.832     4.37
1786.00    0.831     4.40
1787.00    0.830     4.43
1788.00    0.829     4.45
1789.00    0.828     4.48
1790.00    0.827     4.50
1791.00    0.826     4.53
1792.00    0.824     4.56
1793.00    0.823     4.58
1794.00    0.822     4.61
1795.00    0.821     4.64
1796.00    0.820     4.66
1797.00    0.819     4.69
1798.00    0.818     4.72
1799.00    0.816     4.74
1800.00    0.815     4.77
1801.00    0.814     4.80
1802.00    0.813     4.82
1803.00    0.812     4.85
1804.00    0.810     4.88
1805.00    0.809     4.91
1806.00    0.808     4.93
1807.00    0.807     4.96
1808.00    0.805     4.99
1809.00    0.804     5.02
1810.00    0.803     5.04
1811.00    0.801     5.07
1812.00    0.800     5.10
1813.00    0.799     5.13
1814.00    0.797     5.16
1815.00    0.796     5.18
1816.00    0.794     5.21
1817.00    0.793     5.24
1818.00    0.792     5.27
1819.00    0.790     5.30
1820.00    0.789     5.33
1821.00    0.787     5.36
1822.00    0.786     5.39
1823.00    0.784     5.41
1824.00    0.783     5.44
1825.00    0.781     5.47
1826.00    0.780     5.50
1827.00    0.778     5.53
1828.00    0.777     5.56
1829.00    0.775     5.59
1830.00    0.774     5.62
1831.00    0.772     5.65
1832.00    0.771     5.68
1833.00    0.769     5.71
1834.00    0.767     5.74
1835.00    0.766     5.77
1836.00    0.764     5.80
1837.00    0.762     5.83
1838.00    0.761     5.86
1839.00    0.759     5.90
1840.00    0.757     5.93
1841.00    0.756     5.96
1842.00    0.754     5.99
1843.00    0.752     6.02
1844.00    0.750     6.05
1845.00    0.749     6.08
1846.00    0.747     6.12
1847.00    0.745     6.15
1848.00    0.743     6.18
1849.00    0.741     6.21
1850.00    0.740     6.25
1851.00    0.738     6.28
1852.00    0.736     6.31
1853.00    0.734     6.35
1854.00    0.732     6.38
1855.00    0.730     6.41
1856.00    0.728     6.45
1857.00    0.726     6.48
1858.00    0.724     6.51
1859.00    0.722     6.55
1860.00    0.720     6.58
1861.00    0.718     6.62
1862.00    0.716     6.65
1863.00    0.714     6.69
1864.00    0.712     6.72
1865.00    0.710     6.76
1866.00    0.708     6.79
1867.00    0.706     6.83
1868.00    0.704     6.87
1869.00    0.702     6.90
1870.00    0.700     6.94
1871.00    0.698     6.97
1872.00    0.696     7.01
1873.00    0.693     7.05
1874.00    0.691     7.09
1875.00    0.689     7.12
1876.00    0.687     7.16
1877.00    0.685     7.20
1878.00    0.682     7.24
1879.00    0.680     7.28
1880.00    0.678     7.32
1881.00    0.675     7.36
1882.00    0.673     7.39
1883.00    0.671     7.43
1884.00    0.668     7.47
1885.00    0.666     7.51
1886.00    0.664     7.55
1887.00    0.661     7.60
1888.00    0.659     7.64
1889.00    0.656     7.68
1890.00    0.654     7.72
1891.00    0.651     7.76
1892.00    0.649     7.80
1893.00    0.646     7.85
1894.00    0.644     7.89
1895.00    0.641     7.93
1896.00    0.639     7.98
1897.00    0.636     8.02
1898.00    0.634     8.07
1899.00    0.631     8.11
1900.00    0.628     8.16
1901.00    0.626     8.20
1902.00    0.623     8.25
1903.00    0.620     8.29
1904.00    0.618     8.34
1905.00    0.615     8.39
1906.00    0.612     8.44
1907.00    0.609     8.48
1908.00    0.607     8.53
1909.00    0.604     8.58
1910.00    0.601     8.63
1911.00    0.598     8.68
1912.00    0.595     8.73
1913.00    0.592     8.78
1914.00    0.590     8.83
1915.00    0.587     8.88
1916.00    0.584     8.94
1917.00    0.581     8.99
1918.00    0.578     9.04
1919.00    0.575     9.10
1920.00    0.572     9.15
1921.00    0.569     9.21
1922.00    0.566     9.26
1923.00    0.562     9.32
1924.00    0.559     9.38
1925.00    0.556     9.43
1926.00    0.553     9.49
1927.00    0.550     9.55
1928.00    0.547     9.61
1929.00    0.543     9.67
1930.00    0.540     9.73
1931.00    0.537     9.79
1932.00    0.534     9.86
1933.00    0.530     9.92
1934.00    0.527     9.98
1935.00    0.524    10.05
1936.00    0.520    10.11
1937.00    0.517    10.18
1938.00    0.513    10.25
1939.00    0.510    10.32
1940.00    0.506    10.39
1941.00    0.503    10.46
1942.00    0.499    10.53
1943.00    0.496    10.60
1944.00    0.492    10.67
1945.00    0.488    10.75
1946.00    0.485    10.82
1947.00    0.481    10.90
1948.00    0.477    10.98
1949.00    0.473    11.06
1950.00    0.470    11.14
1951.00    0.466    11.22
1952.00    0.462    11.30
1953.00    0.458    11.39
1954.00    0.454    11.48
1955.00    0.450    11.56
1956.00    0.446    11.65
1957.00    0.442    11.74
1958.00    0.438    11.84
1959.00    0.434    11.93
1960.00    0.430    12.03
1961.00    0.426    12.12
1962.00    0.422    12.22
1963.00    0.418    12.32
1964.00    0.413    12.43
1965.00    0.409    12.53
1966.00    0.405    12.64
1967.00    0.401    12.75
1968.00    0.396    12.87
1969.00    0.392    12.98
1970.00    0.387    13.10
1971.00    0.383    13.22
1972.00    0.378    13.34
1973.00    0.374    13.47
1974.00    0.369    13.60
1975.00    0.364    13.73
1976.00    0.360    13.87
1977.00    0.355    14.01
1978.00    0.350    14.16
1979.00    0.345    14.30
1980.00    0.340    14.46
1981.00    0.335    14.61
1982.00    0.330    14.78
1983.00    0.325    14.94
1984.00    0.320    15.11
1985.00    0.315    15.29
1986.00    0.310    15.48
1987.00    0.305    15.67
1988.00    0.299    15.86
1989.00    0.294    16.07
1990.00    0.289    16.28
1991.00    0.283    16.50
1992.00    0.278    16.72
1993.00    0.272    16.96
1994.00    0.266    17.21
1995.00    0.261    17.47
1996.00    0.255    17.74
1997.00    0.249    18.02
1998.00    0.243    18.31
1999.00    0.237    18.62
2000.00    0.231    18.95
2001.00    0.225    19.30
2002.00    0.219    19.66
2003.00    0.212    20.05
2004.00    0.206    20.46
2005.00    0.200    20.89
2006.00    0.193    21.36
2007.00    0.186    21.86
2008.00    0.180    22.39
2009.00    0.173    22.97
2010.00    0.166    23.60
2011.00    0.159    24.28
2012.00    0.152    25.02
2013.00    0.144    25.84
2014.00    0.137    26.75
2015.00    0.129    27.76
2016.00    0.122    28.90
2017.00    0.114    30.19
2018.00    0.106    31.67
2019.00    0.098    33.38
2020.00    0.090    35.40
2021.00    0.082    37.82
2022.00    0.074    40.76
2023.00    0.066    44.43
2024.00    0.058    49.14
2025.00    0.050    55.33
2026.00    0.043    63.74
2027.00    0.036    75.33
2028.00    0.032    91.03
2029.00    0.030   110.37
2030.00    0.031   130.31
2031.00    0.034   147.43
2032.00    0.039   160.78
2033.00    0.044   171.26
2034.00    0.046   180.12
2035.00    0.046   188.46
2036.00    0.044   197.29
2037.00    0.040   207.53
2038.00    0.036   220.07
2039.00    0.033   235.32
2040.00    0.032   252.47
2041.00    0.034   269.34
2042.00    0.037   283.81
2043.00    0.043   295.19
2044.00    0.049   303.84
2045.00    0.056   310.44
2046.00    0.063   315.55
2047.00    0.070   319.60
2048.00    0.078   322.88
2049.00    0.085   325.57
2050.00    0.093   327.84
2051.00    0.100   329.76
2052.00    0.108   331.43
2053.00    0.115   332.88
2054.00    0.122   334.16
2055.00    0.129   335.29
2056.00    0.136   336.31
2057.00    0.143   337.23
2058.00    0.150   338.07
2059.00    0.157   338.83
2060.00    0.163   339.53
2061.00    0.170   340.17
2062.00    0.176   340.77
2063.00    0.183   341.33
2064.00    0.189   341.84
2065.00    0.196   342.33
2066.00    0.202   342.78
2067.00    0.208   343.21
2068.00    0.214   343.61
2069.00    0.220   343.99
2070.00    0.226   344.36
2071.00    0.232   344.70
2072.00    0.237   345.03
2073.00    0.243   345.34
2074.00    0.249   345.63
2075.00    0.254   345.92
2076.00    0.260   346.19
2077.00    0.265   346.45
2078.00    0.271   346.70
2079.00    0.276   346.94
2080.00    0.281   347.17
2081.00    0.287   347.39
2082.00    0.292   347.60
2083.00    0.297   347.81
2084.00    0.302   348.01
2085.00    0.307   348.20
2086.00    0.312   348.39
2087.00    0.317   348.57
2088.00    0.322   348.75
2089.00    0.327   348.92
2090.00    0.332   349.08
2091.00    0.336   349.24
2092.00    0.341   349.40
2093.00    0.346   349.55
2094.00    0.350   349.70
2095.00    0.355   349.84
2096.00    0.360   349.98
2097.00    0.364   350.12
2098.00    0.369   350.26
2099.00    0.373   350.39
2100.00    0.378   350.51
2101.00    0.382   350.64
2102.00    0.386   350.76
2103.00    0.391   350.88
2104.00    0.395   350.99
2105.00    0.399   351.11
2106.00    0.403   351.22
2107.00    0.407   351.33
2108.00    0.412   351.43
2109.00    0.416   351.54
2110.00    0.420   351.64
2111.00    0.424   351.74
2112.00    0.428   351.84
2113.00    0.432   351.94
2114.00    0.436   352.03
2115.00    0.440   352.13
2116.00    0.444   352.22
2117.00    0.447   352.31
2118.00    0.451   352.40
2119.00    0.455   352.49
2120.00    0.459   352.57
2121.00    0.463   352.66
2122.00    0.466   352.74
2123.00    0.470   352.82
2124.00    0.474   352.90
2125.00    0.477   352.98
2126.00    0.481   353.06
2127.00    0.485   353.14
2128.00    0.488   353.21
2129.00    0.492   353.29
2130.00    0.495   353.36
2131.00    0.499   353.43
2132.00    0.502   353.50
2133.00    0.506   353.57
2134.00    0.509   353.64
2135.00    0.512   353.71
2136.00    0.516   353.78
2137.00    0.519   353.85
2138.00    0.522   353.91
2139.00    0.526   353.98
2140.00    0.529   354.04
2141.00    0.532   354.11
2142.00    0.535   354.17
2143.00    0.539   354.23
2144.00    0.542   354.29
2145.00    0.545   354.35
2146.00    0.548   354.41
2147.00    0.551   354.47
2148.00    0.554   354.53
2149.00    0.557   354.59
2150.00    0.560   354.65
2151.00    0.563   354.70
2152.00    0.566   354.76
2153.00    0.569   354.82
2154.00    0.572   354.87
2155.00    0.575   354.93
2156.00    0.578   354.98
2157.00    0.581   355.03
2158.00    0.584   355.09
2159.00    0.587   355.14
2160.00    0.590   355.19
2161.00    0.593   355.24
2162.00    0.595   355.29
2163.00    0.598   355.34
2164.00    0.601   355.39
2165.00    0.604   355.44
2166.00    0.607   355.49
2167.00    0.609   355.54
2168.00    0.612   355.59
2169.00    0.615   355.63
2170.00    0.617   355.68
2171.00    0.620   355.73
2172.00    0.623   355.78
2173.00    0.625   355.82
2174.00    0.628   355.87
2175.00    0.630   355.91
2176.00    0.633   355.96
2177.00    0.636   356.00
2178.00    0.638   356.05
2179.00    0.641   356.09
2180.00    0.643   356.13
2181.00    0.646   356.18
2182.00    0.648   356.22
2183.00    0.650   356.26
2184.00    0.653   356.30
2185.00    0.655   356.35
2186.00    0.658   356.39
2187.00    0.660   356.43
2188.00    0.662   356.47
2189.00    0.665   356.51
2190.00    0.667   356.55
2191.00    0.669   356.59
2192.00    0.672   356.63
2193.00    0.674   356.67
2194.00    0.676   356.71
2195.00    0.679   356.75
2196.00    0.681   356.79
2197.00    0.683   356.83
2198.00    0.685   356.86
2199.00    0.687   356.90
2200.00    0.690   356.94
2201.00    0.692   356.98
2202.00    0.694   357.02
2203.00    0.696   357.05
2204.00    0.698   357.09
2205.00    0.700   357.13
2206.00    0.702   357.16
2207.00    0.704   357.20
2208.00    0.706   357.23
2209.00    0.709   357.27
2210.00    0.711   357.31
2211.00    0.713   357.34
2212.00    0.715   357.38
2213.00    0.717   357.41
2214.00    0.719   357.45
2215.00    0.720   357.48
2216.00    0.722   357.52
2217.00    0.724   357.55
2218.00    0.726   357.58
2219.00    0.728   357.62
2220.00    0.730   357.65
2221.00    0.732   357.68
2222.00    0.734   357.72
2223.00    0.736   357.75
2224.00    0.738   357.78
2225.00    0.739   357.82
2226.00    0.741   357.85
2227.00    0.743   357.88
2228.00    0.745   357.91
2229.00    0.746   357.95
2230.00    0.748   357.98
2231.00    0.750   358.01
2232.00    0.752   358.04
2233.00    0.753   358.07
2234.00    0.755   358.11
2235.00    0.757   358.14
2236.00    0.759   358.17
2237.00    0.760   358.20
2238.00    0.762   358.23
2239.00    0.763   358.26
2240.00    0.765   358.29
2241.00    0.767   358.32
2242.00    0.768   358.35
2243.00    0.770   358.38
2244.00    0.771   358.41
2245.00    0.773   358.44
2246.00    0.775   358.47
2247.00    0.776   358.50
2248.00    0.778   358.53
2249.00    0.779   358.56
2250.00    0.781   358.59
2251.00    0.782   358.62
2252.00    0.784   358.65
2253.00    0.785   358.68
2254.00    0.787   358.71
2255.00    0.788   358.74
2256.00    0.789   358.77
2257.00    0.791   358.80
2258.00    0.792   358.82
2259.00    0.794   358.85
2260.00    0.795   358.88
2261.00    0.796   358.91
2262.00    0.798   358.94
2263.00    0.799   358.97
2264.00    0.800   358.99
2265.00    0.802   359.02
2266.00    0.803   359.05
2267.00    0.804   359.08
2268.00    0.806   359.10
2269.00    0.807   359.13
2270.00    0.808   359.16
2271.00    0.809   359.19
2272.00    0.811   359.21
2273.00    0.812   359.24
2274.00    0.813   359.27
2275.00    0.814   359.30
2276.00    0.815   359.32
2277.00    0.817   359.35
2278.00    0.818   359.38
2279.00    0.819   359.40
2280.00    0.820   359.43
2281.00    0.821   359.46
2282.00    0.822   359.48
2283.00    0.824   359.51
2284.00    0.825   359.54
2285.00    0.826   359.56
2286.00    0.827   359.59
2287.00    0.828   359.61
2288.00    0.829   359.64
2289.00    0.830   359.67
2290.00    0.831   359.69
2291.00    0.832   359.72
2292.00    0.833   359.74
2293.00    0.834   359.77
2294.00    0.835   359.80
2295.00    0.836   359.82
2296.00    0.837   359.85
2297.00    0.838   359.87
2298.00    0.839   359.90
2299.00    0.840   359.92
2300.00    0.841   359.95
2301.00    0.842   359.97
2302.00    0.843     0.00
2303.00    0.843     0.03
2304.00    0.844     0.05
2305.00    0.845     0.08
2306.00    0.846     0.10
2307.00    0.847     0.13
2308.00    0.848     0.15
2309.00    0.849     0.18
2310.00    0.849     0.20
2311.00    0.850     0.23
2312.00    0.851     0.25
2313.00    0.852     0.27
2314.00    0.853     0.30
2315.00    0.853     0.32
2316.00    0.854     0.35
2317.00    0.855     0.37
2318.00    0.856     0.40
2319.00    0.856     0.42
2320.00    0.857     0.45
2321.00    0.858     0.47
2322.00    0.858     0.50
2323.00    0.859     0.52
2324.00    0.860     0.54
2325.00    0.860     0.57
2326.00    0.861     0.59
2327.00    0.862     0.62
2328.00    0.862     0.64
2329.00    0.863     0.66
2330.00    0.863     0.69
2331.00    0.864     0.71
2332.00    0.865     0.74
2333.00    0.865     0.76
2334.00    0.866     0.78
2335.00    0.866     0.81
2336.00    0.867     0.83
2337.00    0.867     0.86
2338.00    0.868     0.88
2339.00    0.868     0.90
2340.00    0.869     0.93
2341.00    0.869     0.95
2342.00    0.870     0.98
2343.00    0.870     1.00
2344.00    0.871     1.02
2345.00    0.871     1.05
2346.00    0.872     1.07
2347.00    0.872     1.09
2348.00    0.873     1.12
2349.00    0.873     1.14
2350.00    0.873     1.16
2351.00    0.874     1.19
2352.00    0.874     1.21
2353.00    0.874     1.23
2354.00    0.875     1.26
2355.00    0.875     1.28
2356.00    0.875     1.30
2357.00    0.876     1.33
2358.00    0.876     1.35
2359.00    0.876     1.37
2360.00    0.877     1.40
2361.00    0.877     1.42
2362.00    0.877     1.44
2363.00    0.878     1.47
2364.00    0.878     1.49
2365.00    0.878     1.51
2366.00    0.878     1.54
2367.00    0.878     1.56
2368.00    0.879     1.58
2369.00    0.879     1.61
2370.00    0.879     1.63
2371.00    0.879     1.65
2372.00    0.879     1.68
2373.00    0.880     1.70
2374.00    0.880     1.72






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 16:56:22



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