| WDS: | AC1 | WDS ID/Discoverer |
| P: | 525.000 | Orbital period (years) |
| a: | 1.234 | Semi-major axis (arcseconds) |
| i: | 84.0 | Inclination (degrees) |
| Ω: | 107.5 | Longitude of ascending node (degrees) |
| T: | 1820.100 | Epoch of periastron passage (year) |
| e: | 0.6 | Eccentricity |
| ω: | 26.8 | Longitude of periastron (degrees) |
| Start-Year: | 1762.5 | Year |
| End-Year: | 2287.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for AC1 |
||
| Position: | 002054.10+325840.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00209+3259 | WDS designation |
| Discoverer Code: | AC1 | Discover designation and components |
| ADS number: | 285 | Aitken Double Star catalog |
| HD number: | 1641 | HD catalog number |
| Hipparcos number: | 1669 | Hipparcos catalog number |
| V1: | 7.27 | Magnitude of the primary |
| V2: | 8.26 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | 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: | Zir2015a | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 1.849 289.05 -------------------------- 1762.50 0.144 60.87 1763.50 0.153 64.83 1764.50 0.162 68.36 1765.50 0.172 71.49 1766.50 0.182 74.28 1767.50 0.193 76.77 1768.50 0.203 79.00 1769.50 0.214 81.01 1770.50 0.225 82.81 1771.50 0.237 84.45 1772.50 0.248 85.94 1773.50 0.259 87.29 1774.50 0.271 88.54 1775.50 0.282 89.68 1776.50 0.294 90.73 1777.50 0.305 91.70 1778.50 0.317 92.61 1779.50 0.328 93.45 1780.50 0.339 94.23 1781.50 0.350 94.97 1782.50 0.361 95.66 1783.50 0.372 96.31 1784.50 0.383 96.92 1785.50 0.393 97.50 1786.50 0.403 98.05 1787.50 0.413 98.58 1788.50 0.423 99.08 1789.50 0.433 99.55 1790.50 0.442 100.01 1791.50 0.451 100.45 1792.50 0.459 100.87 1793.50 0.468 101.27 1794.50 0.476 101.67 1795.50 0.483 102.05 1796.50 0.490 102.42 1797.50 0.496 102.78 1798.50 0.502 103.13 1799.50 0.508 103.47 1800.50 0.513 103.80 1801.50 0.517 104.13 1802.50 0.520 104.46 1803.50 0.523 104.78 1804.50 0.525 105.10 1805.50 0.527 105.41 1806.50 0.527 105.73 1807.50 0.527 106.04 1808.50 0.526 106.35 1809.50 0.524 106.67 1810.50 0.521 106.99 1811.50 0.517 107.31 1812.50 0.512 107.64 1813.50 0.506 107.98 1814.50 0.499 108.33 1815.50 0.491 108.68 1816.50 0.482 109.05 1817.50 0.472 109.44 1818.50 0.461 109.84 1819.50 0.449 110.26 1820.50 0.436 110.70 1821.50 0.422 111.18 1822.50 0.407 111.69 1823.50 0.391 112.24 1824.50 0.375 112.83 1825.50 0.357 113.48 1826.50 0.339 114.20 1827.50 0.320 115.01 1828.50 0.301 115.91 1829.50 0.281 116.94 1830.50 0.261 118.13 1831.50 0.241 119.52 1832.50 0.220 121.17 1833.50 0.199 123.17 1834.50 0.178 125.63 1835.50 0.157 128.76 1836.50 0.137 132.84 1837.50 0.117 138.32 1838.50 0.098 145.94 1839.50 0.082 156.78 1840.50 0.070 172.01 1841.50 0.065 191.44 1842.50 0.068 211.67 1843.50 0.078 228.49 1844.50 0.093 240.71 1845.50 0.110 249.28 1846.50 0.130 255.37 1847.50 0.150 259.85 1848.50 0.171 263.24 1849.50 0.193 265.89 1850.50 0.214 268.00 1851.50 0.236 269.73 1852.50 0.257 271.17 1853.50 0.279 272.39 1854.50 0.300 273.43 1855.50 0.322 274.34 1856.50 0.343 275.13 1857.50 0.364 275.83 1858.50 0.385 276.45 1859.50 0.406 277.01 1860.50 0.427 277.51 1861.50 0.447 277.97 1862.50 0.467 278.39 1863.50 0.487 278.77 1864.50 0.507 279.12 1865.50 0.527 279.45 1866.50 0.547 279.75 1867.50 0.566 280.03 1868.50 0.585 280.30 1869.50 0.604 280.54 1870.50 0.623 280.78 1871.50 0.641 281.00 1872.50 0.660 281.20 1873.50 0.678 281.40 1874.50 0.696 281.58 1875.50 0.714 281.76 1876.50 0.731 281.93 1877.50 0.749 282.08 1878.50 0.766 282.24 1879.50 0.783 282.38 1880.50 0.800 282.52 1881.50 0.816 282.66 1882.50 0.833 282.78 1883.50 0.849 282.91 1884.50 0.865 283.03 1885.50 0.881 283.14 1886.50 0.896 283.25 1887.50 0.912 283.36 1888.50 0.927 283.46 1889.50 0.942 283.56 1890.50 0.957 283.66 1891.50 0.972 283.75 1892.50 0.987 283.84 1893.50 1.001 283.93 1894.50 1.016 284.02 1895.50 1.030 284.10 1896.50 1.044 284.18 1897.50 1.058 284.26 1898.50 1.071 284.34 1899.50 1.085 284.41 1900.50 1.098 284.49 1901.50 1.111 284.56 1902.50 1.124 284.63 1903.50 1.137 284.70 1904.50 1.150 284.76 1905.50 1.162 284.83 1906.50 1.175 284.89 1907.50 1.187 284.96 1908.50 1.199 285.02 1909.50 1.211 285.08 1910.50 1.223 285.14 1911.50 1.234 285.19 1912.50 1.246 285.25 1913.50 1.257 285.31 1914.50 1.269 285.36 1915.50 1.280 285.42 1916.50 1.291 285.47 1917.50 1.301 285.52 1918.50 1.312 285.57 1919.50 1.323 285.62 1920.50 1.333 285.67 1921.50 1.343 285.72 1922.50 1.354 285.77 1923.50 1.364 285.82 1924.50 1.373 285.86 1925.50 1.383 285.91 1926.50 1.393 285.95 1927.50 1.402 286.00 1928.50 1.412 286.04 1929.50 1.421 286.09 1930.50 1.430 286.13 1931.50 1.439 286.17 1932.50 1.448 286.21 1933.50 1.457 286.25 1934.50 1.466 286.29 1935.50 1.474 286.34 1936.50 1.483 286.38 1937.50 1.491 286.41 1938.50 1.499 286.45 1939.50 1.507 286.49 1940.50 1.515 286.53 1941.50 1.523 286.57 1942.50 1.531 286.61 1943.50 1.539 286.64 1944.50 1.546 286.68 1945.50 1.554 286.72 1946.50 1.561 286.75 1947.50 1.568 286.79 1948.50 1.575 286.82 1949.50 1.582 286.86 1950.50 1.589 286.89 1951.50 1.596 286.93 1952.50 1.603 286.96 1953.50 1.609 287.00 1954.50 1.616 287.03 1955.50 1.622 287.06 1956.50 1.628 287.10 1957.50 1.635 287.13 1958.50 1.641 287.16 1959.50 1.647 287.19 1960.50 1.652 287.22 1961.50 1.658 287.26 1962.50 1.664 287.29 1963.50 1.670 287.32 1964.50 1.675 287.35 1965.50 1.680 287.38 1966.50 1.686 287.41 1967.50 1.691 287.44 1968.50 1.696 287.47 1969.50 1.701 287.50 1970.50 1.706 287.53 1971.50 1.711 287.56 1972.50 1.716 287.59 1973.50 1.720 287.62 1974.50 1.725 287.65 1975.50 1.729 287.68 1976.50 1.734 287.71 1977.50 1.738 287.74 1978.50 1.742 287.77 1979.50 1.746 287.80 1980.50 1.750 287.83 1981.50 1.754 287.85 1982.50 1.758 287.88 1983.50 1.762 287.91 1984.50 1.766 287.94 1985.50 1.769 287.97 1986.50 1.773 288.00 1987.50 1.776 288.02 1988.50 1.780 288.05 1989.50 1.783 288.08 1990.50 1.786 288.11 1991.50 1.789 288.13 1992.50 1.792 288.16 1993.50 1.795 288.19 1994.50 1.798 288.21 1995.50 1.801 288.24 1996.50 1.804 288.27 1997.50 1.806 288.29 1998.50 1.809 288.32 1999.50 1.811 288.35 2000.50 1.813 288.37 2001.50 1.816 288.40 2002.50 1.818 288.43 2003.50 1.820 288.45 2004.50 1.822 288.48 2005.50 1.824 288.51 2006.50 1.826 288.53 2007.50 1.828 288.56 2008.50 1.830 288.59 2009.50 1.831 288.61 2010.50 1.833 288.64 2011.50 1.835 288.66 2012.50 1.836 288.69 2013.50 1.837 288.72 2014.50 1.839 288.74 2015.50 1.840 288.77 2016.50 1.841 288.79 2017.50 1.842 288.82 2018.50 1.843 288.84 2019.50 1.844 288.87 2020.50 1.845 288.90 2021.50 1.846 288.92 2022.50 1.846 288.95 2023.50 1.847 288.97 2024.50 1.848 289.00 2025.50 1.848 289.02 2026.50 1.849 289.05 2027.50 1.849 289.07 2028.50 1.849 289.10 2029.50 1.849 289.13 2030.50 1.850 289.15 2031.50 1.850 289.18 2032.50 1.850 289.20 2033.50 1.850 289.23 2034.50 1.849 289.25 2035.50 1.849 289.28 2036.50 1.849 289.30 2037.50 1.849 289.33 2038.50 1.848 289.36 2039.50 1.848 289.38 2040.50 1.847 289.41 2041.50 1.847 289.43 2042.50 1.846 289.46 2043.50 1.845 289.48 2044.50 1.844 289.51 2045.50 1.843 289.53 2046.50 1.843 289.56 2047.50 1.841 289.59 2048.50 1.840 289.61 2049.50 1.839 289.64 2050.50 1.838 289.66 2051.50 1.837 289.69 2052.50 1.835 289.72 2053.50 1.834 289.74 2054.50 1.833 289.77 2055.50 1.831 289.79 2056.50 1.829 289.82 2057.50 1.828 289.85 2058.50 1.826 289.87 2059.50 1.824 289.90 2060.50 1.822 289.92 2061.50 1.820 289.95 2062.50 1.818 289.98 2063.50 1.816 290.00 2064.50 1.814 290.03 2065.50 1.812 290.06 2066.50 1.810 290.08 2067.50 1.807 290.11 2068.50 1.805 290.14 2069.50 1.803 290.16 2070.50 1.800 290.19 2071.50 1.797 290.22 2072.50 1.795 290.24 2073.50 1.792 290.27 2074.50 1.789 290.30 2075.50 1.787 290.33 2076.50 1.784 290.35 2077.50 1.781 290.38 2078.50 1.778 290.41 2079.50 1.775 290.44 2080.50 1.772 290.46 2081.50 1.768 290.49 2082.50 1.765 290.52 2083.50 1.762 290.55 2084.50 1.758 290.58 2085.50 1.755 290.60 2086.50 1.751 290.63 2087.50 1.748 290.66 2088.50 1.744 290.69 2089.50 1.741 290.72 2090.50 1.737 290.75 2091.50 1.733 290.78 2092.50 1.729 290.81 2093.50 1.725 290.83 2094.50 1.721 290.86 2095.50 1.717 290.89 2096.50 1.713 290.92 2097.50 1.709 290.95 2098.50 1.705 290.98 2099.50 1.701 291.01 2100.50 1.696 291.04 2101.50 1.692 291.07 2102.50 1.687 291.10 2103.50 1.683 291.14 2104.50 1.678 291.17 2105.50 1.674 291.20 2106.50 1.669 291.23 2107.50 1.664 291.26 2108.50 1.659 291.29 2109.50 1.654 291.32 2110.50 1.650 291.36 2111.50 1.645 291.39 2112.50 1.640 291.42 2113.50 1.634 291.45 2114.50 1.629 291.49 2115.50 1.624 291.52 2116.50 1.619 291.55 2117.50 1.613 291.59 2118.50 1.608 291.62 2119.50 1.603 291.65 2120.50 1.597 291.69 2121.50 1.591 291.72 2122.50 1.586 291.76 2123.50 1.580 291.79 2124.50 1.574 291.83 2125.50 1.569 291.86 2126.50 1.563 291.90 2127.50 1.557 291.93 2128.50 1.551 291.97 2129.50 1.545 292.01 2130.50 1.539 292.04 2131.50 1.533 292.08 2132.50 1.526 292.12 2133.50 1.520 292.15 2134.50 1.514 292.19 2135.50 1.507 292.23 2136.50 1.501 292.27 2137.50 1.495 292.31 2138.50 1.488 292.35 2139.50 1.481 292.39 2140.50 1.475 292.43 2141.50 1.468 292.47 2142.50 1.461 292.51 2143.50 1.454 292.55 2144.50 1.448 292.59 2145.50 1.441 292.63 2146.50 1.434 292.67 2147.50 1.427 292.72 2148.50 1.419 292.76 2149.50 1.412 292.80 2150.50 1.405 292.85 2151.50 1.398 292.89 2152.50 1.390 292.94 2153.50 1.383 292.98 2154.50 1.376 293.03 2155.50 1.368 293.07 2156.50 1.361 293.12 2157.50 1.353 293.17 2158.50 1.345 293.22 2159.50 1.338 293.27 2160.50 1.330 293.31 2161.50 1.322 293.36 2162.50 1.314 293.41 2163.50 1.306 293.47 2164.50 1.298 293.52 2165.50 1.290 293.57 2166.50 1.282 293.62 2167.50 1.274 293.68 2168.50 1.265 293.73 2169.50 1.257 293.78 2170.50 1.249 293.84 2171.50 1.240 293.90 2172.50 1.232 293.95 2173.50 1.223 294.01 2174.50 1.215 294.07 2175.50 1.206 294.13 2176.50 1.198 294.19 2177.50 1.189 294.25 2178.50 1.180 294.31 2179.50 1.171 294.38 2180.50 1.162 294.44 2181.50 1.153 294.51 2182.50 1.144 294.57 2183.50 1.135 294.64 2184.50 1.126 294.71 2185.50 1.117 294.78 2186.50 1.108 294.85 2187.50 1.099 294.92 2188.50 1.089 294.99 2189.50 1.080 295.07 2190.50 1.070 295.14 2191.50 1.061 295.22 2192.50 1.051 295.30 2193.50 1.042 295.38 2194.50 1.032 295.46 2195.50 1.022 295.54 2196.50 1.013 295.63 2197.50 1.003 295.71 2198.50 0.993 295.80 2199.50 0.983 295.89 2200.50 0.973 295.98 2201.50 0.963 296.07 2202.50 0.953 296.17 2203.50 0.943 296.27 2204.50 0.933 296.36 2205.50 0.922 296.47 2206.50 0.912 296.57 2207.50 0.902 296.68 2208.50 0.891 296.78 2209.50 0.881 296.90 2210.50 0.871 297.01 2211.50 0.860 297.13 2212.50 0.849 297.25 2213.50 0.839 297.37 2214.50 0.828 297.49 2215.50 0.817 297.62 2216.50 0.806 297.76 2217.50 0.796 297.89 2218.50 0.785 298.03 2219.50 0.774 298.18 2220.50 0.763 298.32 2221.50 0.752 298.48 2222.50 0.741 298.63 2223.50 0.729 298.79 2224.50 0.718 298.96 2225.50 0.707 299.13 2226.50 0.696 299.31 2227.50 0.684 299.49 2228.50 0.673 299.68 2229.50 0.662 299.88 2230.50 0.650 300.08 2231.50 0.639 300.29 2232.50 0.627 300.51 2233.50 0.615 300.74 2234.50 0.604 300.97 2235.50 0.592 301.22 2236.50 0.580 301.47 2237.50 0.569 301.73 2238.50 0.557 302.01 2239.50 0.545 302.30 2240.50 0.533 302.60 2241.50 0.521 302.91 2242.50 0.509 303.24 2243.50 0.497 303.59 2244.50 0.485 303.95 2245.50 0.473 304.33 2246.50 0.461 304.73 2247.50 0.449 305.15 2248.50 0.437 305.59 2249.50 0.425 306.06 2250.50 0.413 306.56 2251.50 0.401 307.09 2252.50 0.389 307.65 2253.50 0.376 308.25 2254.50 0.364 308.88 2255.50 0.352 309.56 2256.50 0.340 310.29 2257.50 0.328 311.08 2258.50 0.316 311.92 2259.50 0.304 312.83 2260.50 0.292 313.81 2261.50 0.280 314.88 2262.50 0.268 316.05 2263.50 0.256 317.32 2264.50 0.244 318.72 2265.50 0.233 320.25 2266.50 0.221 321.95 2267.50 0.210 323.83 2268.50 0.199 325.92 2269.50 0.188 328.25 2270.50 0.178 330.86 2271.50 0.168 333.79 2272.50 0.158 337.08 2273.50 0.149 340.79 2274.50 0.141 344.95 2275.50 0.133 349.62 2276.50 0.127 354.81 2277.50 0.121 0.51 2278.50 0.117 6.70 2279.50 0.114 13.25 2280.50 0.113 20.05 2281.50 0.113 26.89 2282.50 0.115 33.60 2283.50 0.119 40.01 2284.50 0.123 45.99 2285.50 0.129 51.47 2286.50 0.136 56.43
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:38:28 |