| WDS: | A1581 | WDS ID/Discoverer |
| P: | 509.869 | Orbital period (years) |
| a: | 2.32224 | Semi-major axis (arcseconds) |
| i: | 84.39 | Inclination (degrees) |
| Ω: | 124.095 | Longitude of ascending node (degrees) |
| T: | 2068.837 | Epoch of periastron passage (year) |
| e: | 0.55328 | Eccentricity |
| ω: | 243.463 | Longitude of periastron (degrees) |
| Start-Year: | 1770.0655 | Year |
| End-Year: | 2279.9345 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A1581 |
||
| Position: | 080306.55-062451.4 | Epoch-2000 right ascension and declination |
| WDS-ID: | 08031-0625 | WDS designation |
| Discoverer Code: | A1581 | Discover designation and components |
| ADS number: | 6547 | Aitken Double Star catalog |
| HD number: | . | HD catalog number |
| Hipparcos number: | 39383 | Hipparcos catalog number |
| V1: | 10.02 | Magnitude of the primary |
| V2: | 10.29 | 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: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Izm2019 | 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 1.443 301.32 -------------------------- 1770.07 2.160 131.39 1771.07 2.150 131.45 1772.07 2.140 131.52 1773.07 2.129 131.59 1774.07 2.119 131.66 1775.07 2.109 131.73 1776.07 2.098 131.80 1777.07 2.087 131.87 1778.07 2.077 131.94 1779.07 2.066 132.01 1780.07 2.055 132.08 1781.07 2.044 132.16 1782.07 2.033 132.23 1783.07 2.022 132.31 1784.07 2.011 132.38 1785.07 1.999 132.46 1786.07 1.988 132.54 1787.07 1.977 132.62 1788.07 1.965 132.70 1789.07 1.953 132.78 1790.07 1.942 132.86 1791.07 1.930 132.94 1792.07 1.918 133.03 1793.07 1.906 133.11 1794.07 1.894 133.20 1795.07 1.882 133.29 1796.07 1.870 133.37 1797.07 1.858 133.46 1798.07 1.846 133.55 1799.07 1.833 133.64 1800.07 1.821 133.74 1801.07 1.808 133.83 1802.07 1.796 133.93 1803.07 1.783 134.02 1804.07 1.770 134.12 1805.07 1.758 134.22 1806.07 1.745 134.32 1807.07 1.732 134.43 1808.07 1.719 134.53 1809.07 1.706 134.64 1810.07 1.693 134.74 1811.07 1.680 134.85 1812.07 1.667 134.96 1813.07 1.653 135.08 1814.07 1.640 135.19 1815.07 1.627 135.31 1816.07 1.613 135.42 1817.07 1.600 135.54 1818.07 1.586 135.67 1819.07 1.572 135.79 1820.07 1.559 135.92 1821.07 1.545 136.05 1822.07 1.531 136.18 1823.07 1.517 136.31 1824.07 1.504 136.45 1825.07 1.490 136.58 1826.07 1.476 136.73 1827.07 1.462 136.87 1828.07 1.447 137.02 1829.07 1.433 137.17 1830.07 1.419 137.32 1831.07 1.405 137.47 1832.07 1.391 137.63 1833.07 1.376 137.79 1834.07 1.362 137.96 1835.07 1.347 138.13 1836.07 1.333 138.30 1837.07 1.318 138.48 1838.07 1.304 138.66 1839.07 1.289 138.84 1840.07 1.275 139.03 1841.07 1.260 139.22 1842.07 1.245 139.42 1843.07 1.231 139.62 1844.07 1.216 139.83 1845.07 1.201 140.04 1846.07 1.186 140.26 1847.07 1.171 140.48 1848.07 1.156 140.71 1849.07 1.141 140.95 1850.07 1.126 141.19 1851.07 1.111 141.44 1852.07 1.096 141.69 1853.07 1.081 141.95 1854.07 1.066 142.22 1855.07 1.051 142.50 1856.07 1.036 142.78 1857.07 1.021 143.08 1858.07 1.006 143.38 1859.07 0.991 143.69 1860.07 0.975 144.01 1861.07 0.960 144.34 1862.07 0.945 144.68 1863.07 0.930 145.04 1864.07 0.915 145.40 1865.07 0.899 145.78 1866.07 0.884 146.17 1867.07 0.869 146.57 1868.07 0.854 146.99 1869.07 0.839 147.42 1870.07 0.823 147.87 1871.07 0.808 148.34 1872.07 0.793 148.82 1873.07 0.778 149.32 1874.07 0.763 149.84 1875.07 0.748 150.39 1876.07 0.733 150.95 1877.07 0.718 151.54 1878.07 0.703 152.16 1879.07 0.688 152.80 1880.07 0.673 153.47 1881.07 0.658 154.17 1882.07 0.644 154.90 1883.07 0.629 155.67 1884.07 0.615 156.47 1885.07 0.600 157.31 1886.07 0.586 158.19 1887.07 0.572 159.12 1888.07 0.558 160.09 1889.07 0.544 161.11 1890.07 0.530 162.19 1891.07 0.516 163.32 1892.07 0.503 164.52 1893.07 0.490 165.78 1894.07 0.477 167.11 1895.07 0.464 168.51 1896.07 0.451 169.99 1897.07 0.439 171.56 1898.07 0.427 173.21 1899.07 0.416 174.96 1900.07 0.405 176.80 1901.07 0.394 178.74 1902.07 0.384 180.80 1903.07 0.374 182.96 1904.07 0.365 185.23 1905.07 0.356 187.62 1906.07 0.348 190.12 1907.07 0.341 192.74 1908.07 0.334 195.46 1909.07 0.328 198.29 1910.07 0.323 201.21 1911.07 0.319 204.21 1912.07 0.316 207.29 1913.07 0.314 210.42 1914.07 0.312 213.59 1915.07 0.312 216.78 1916.07 0.312 219.97 1917.07 0.313 223.15 1918.07 0.316 226.28 1919.07 0.319 229.36 1920.07 0.323 232.37 1921.07 0.328 235.30 1922.07 0.334 238.13 1923.07 0.340 240.86 1924.07 0.348 243.49 1925.07 0.356 246.00 1926.07 0.364 248.39 1927.07 0.373 250.68 1928.07 0.383 252.85 1929.07 0.393 254.91 1930.07 0.404 256.86 1931.07 0.415 258.71 1932.07 0.426 260.47 1933.07 0.438 262.13 1934.07 0.450 263.70 1935.07 0.463 265.19 1936.07 0.475 266.60 1937.07 0.488 267.94 1938.07 0.501 269.20 1939.07 0.515 270.41 1940.07 0.528 271.55 1941.07 0.542 272.63 1942.07 0.555 273.66 1943.07 0.569 274.64 1944.07 0.583 275.58 1945.07 0.598 276.47 1946.07 0.612 277.31 1947.07 0.626 278.12 1948.07 0.640 278.90 1949.07 0.655 279.64 1950.07 0.669 280.34 1951.07 0.684 281.02 1952.07 0.698 281.67 1953.07 0.713 282.29 1954.07 0.728 282.89 1955.07 0.742 283.46 1956.07 0.757 284.02 1957.07 0.771 284.55 1958.07 0.786 285.06 1959.07 0.801 285.55 1960.07 0.815 286.03 1961.07 0.830 286.49 1962.07 0.844 286.93 1963.07 0.859 287.36 1964.07 0.873 287.77 1965.07 0.888 288.17 1966.07 0.902 288.56 1967.07 0.916 288.93 1968.07 0.930 289.30 1969.07 0.945 289.65 1970.07 0.959 289.99 1971.07 0.973 290.32 1972.07 0.987 290.65 1973.07 1.001 290.96 1974.07 1.014 291.27 1975.07 1.028 291.56 1976.07 1.042 291.85 1977.07 1.055 292.13 1978.07 1.068 292.41 1979.07 1.082 292.68 1980.07 1.095 292.94 1981.07 1.108 293.20 1982.07 1.121 293.44 1983.07 1.133 293.69 1984.07 1.146 293.93 1985.07 1.158 294.16 1986.07 1.171 294.39 1987.07 1.183 294.61 1988.07 1.195 294.83 1989.07 1.207 295.05 1990.07 1.218 295.26 1991.07 1.230 295.47 1992.07 1.241 295.67 1993.07 1.252 295.87 1994.07 1.263 296.06 1995.07 1.273 296.26 1996.07 1.284 296.45 1997.07 1.294 296.63 1998.07 1.304 296.82 1999.07 1.314 297.00 2000.07 1.323 297.18 2001.07 1.332 297.35 2002.07 1.341 297.53 2003.07 1.350 297.70 2004.07 1.358 297.87 2005.07 1.366 298.03 2006.07 1.374 298.20 2007.07 1.381 298.36 2008.07 1.389 298.52 2009.07 1.395 298.68 2010.07 1.402 298.84 2011.07 1.408 299.00 2012.07 1.413 299.16 2013.07 1.419 299.31 2014.07 1.423 299.46 2015.07 1.428 299.62 2016.07 1.432 299.77 2017.07 1.435 299.92 2018.07 1.438 300.07 2019.07 1.441 300.22 2020.07 1.443 300.37 2021.07 1.445 300.52 2022.07 1.446 300.66 2023.07 1.446 300.81 2024.07 1.446 300.96 2025.07 1.445 301.11 2026.07 1.444 301.26 2027.07 1.442 301.41 2028.07 1.439 301.56 2029.07 1.436 301.71 2030.07 1.432 301.86 2031.07 1.427 302.01 2032.07 1.421 302.16 2033.07 1.415 302.32 2034.07 1.408 302.47 2035.07 1.400 302.63 2036.07 1.391 302.79 2037.07 1.381 302.95 2038.07 1.371 303.11 2039.07 1.359 303.28 2040.07 1.347 303.45 2041.07 1.333 303.62 2042.07 1.318 303.80 2043.07 1.302 303.98 2044.07 1.286 304.16 2045.07 1.268 304.35 2046.07 1.248 304.55 2047.07 1.228 304.75 2048.07 1.207 304.96 2049.07 1.184 305.18 2050.07 1.160 305.40 2051.07 1.134 305.64 2052.07 1.108 305.89 2053.07 1.080 306.15 2054.07 1.050 306.42 2055.07 1.020 306.71 2056.07 0.988 307.02 2057.07 0.954 307.35 2058.07 0.920 307.70 2059.07 0.884 308.08 2060.07 0.846 308.49 2061.07 0.808 308.95 2062.07 0.768 309.45 2063.07 0.727 310.00 2064.07 0.685 310.62 2065.07 0.642 311.33 2066.07 0.598 312.13 2067.07 0.554 313.07 2068.07 0.508 314.17 2069.07 0.462 315.50 2070.07 0.415 317.11 2071.07 0.368 319.14 2072.07 0.321 321.77 2073.07 0.274 325.30 2074.07 0.229 330.25 2075.07 0.185 337.60 2076.07 0.146 349.15 2077.07 0.117 7.68 2078.07 0.105 33.80 2079.07 0.118 59.68 2080.07 0.148 77.83 2081.07 0.187 89.13 2082.07 0.231 96.33 2083.07 0.277 101.20 2084.07 0.323 104.67 2085.07 0.371 107.25 2086.07 0.418 109.25 2087.07 0.466 110.84 2088.07 0.513 112.14 2089.07 0.560 113.22 2090.07 0.606 114.13 2091.07 0.652 114.92 2092.07 0.698 115.60 2093.07 0.742 116.20 2094.07 0.787 116.73 2095.07 0.830 117.20 2096.07 0.873 117.63 2097.07 0.915 118.02 2098.07 0.957 118.37 2099.07 0.998 118.70 2100.07 1.038 119.00 2101.07 1.078 119.27 2102.07 1.116 119.53 2103.07 1.154 119.77 2104.07 1.192 120.00 2105.07 1.229 120.21 2106.07 1.265 120.41 2107.07 1.300 120.60 2108.07 1.335 120.78 2109.07 1.369 120.95 2110.07 1.402 121.11 2111.07 1.435 121.26 2112.07 1.467 121.41 2113.07 1.498 121.55 2114.07 1.529 121.68 2115.07 1.559 121.81 2116.07 1.589 121.94 2117.07 1.618 122.06 2118.07 1.646 122.18 2119.07 1.674 122.29 2120.07 1.701 122.40 2121.07 1.728 122.50 2122.07 1.754 122.61 2123.07 1.779 122.71 2124.07 1.804 122.80 2125.07 1.828 122.90 2126.07 1.852 122.99 2127.07 1.876 123.08 2128.07 1.899 123.16 2129.07 1.921 123.25 2130.07 1.943 123.33 2131.07 1.964 123.41 2132.07 1.985 123.49 2133.07 2.005 123.57 2134.07 2.025 123.65 2135.07 2.045 123.72 2136.07 2.064 123.80 2137.07 2.083 123.87 2138.07 2.101 123.94 2139.07 2.118 124.01 2140.07 2.136 124.08 2141.07 2.153 124.14 2142.07 2.169 124.21 2143.07 2.185 124.28 2144.07 2.201 124.34 2145.07 2.216 124.40 2146.07 2.231 124.47 2147.07 2.246 124.53 2148.07 2.260 124.59 2149.07 2.274 124.65 2150.07 2.287 124.71 2151.07 2.300 124.77 2152.07 2.313 124.83 2153.07 2.326 124.88 2154.07 2.338 124.94 2155.07 2.349 125.00 2156.07 2.361 125.05 2157.07 2.372 125.11 2158.07 2.383 125.16 2159.07 2.393 125.22 2160.07 2.403 125.27 2161.07 2.413 125.33 2162.07 2.423 125.38 2163.07 2.432 125.43 2164.07 2.441 125.48 2165.07 2.449 125.54 2166.07 2.458 125.59 2167.07 2.466 125.64 2168.07 2.474 125.69 2169.07 2.481 125.74 2170.07 2.489 125.79 2171.07 2.496 125.84 2172.07 2.502 125.89 2173.07 2.509 125.94 2174.07 2.515 125.99 2175.07 2.521 126.04 2176.07 2.527 126.09 2177.07 2.532 126.13 2178.07 2.537 126.18 2179.07 2.542 126.23 2180.07 2.547 126.28 2181.07 2.551 126.33 2182.07 2.556 126.37 2183.07 2.560 126.42 2184.07 2.563 126.47 2185.07 2.567 126.51 2186.07 2.570 126.56 2187.07 2.574 126.61 2188.07 2.576 126.66 2189.07 2.579 126.70 2190.07 2.582 126.75 2191.07 2.584 126.80 2192.07 2.586 126.84 2193.07 2.588 126.89 2194.07 2.590 126.93 2195.07 2.591 126.98 2196.07 2.592 127.03 2197.07 2.593 127.07 2198.07 2.594 127.12 2199.07 2.595 127.16 2200.07 2.595 127.21 2201.07 2.596 127.26 2202.07 2.596 127.30 2203.07 2.596 127.35 2204.07 2.596 127.39 2205.07 2.595 127.44 2206.07 2.595 127.49 2207.07 2.594 127.53 2208.07 2.593 127.58 2209.07 2.592 127.63 2210.07 2.590 127.67 2211.07 2.589 127.72 2212.07 2.587 127.76 2213.07 2.586 127.81 2214.07 2.584 127.86 2215.07 2.582 127.90 2216.07 2.579 127.95 2217.07 2.577 128.00 2218.07 2.574 128.04 2219.07 2.571 128.09 2220.07 2.569 128.14 2221.07 2.565 128.18 2222.07 2.562 128.23 2223.07 2.559 128.28 2224.07 2.555 128.33 2225.07 2.552 128.37 2226.07 2.548 128.42 2227.07 2.544 128.47 2228.07 2.540 128.52 2229.07 2.536 128.57 2230.07 2.531 128.61 2231.07 2.527 128.66 2232.07 2.522 128.71 2233.07 2.517 128.76 2234.07 2.512 128.81 2235.07 2.507 128.86 2236.07 2.502 128.91 2237.07 2.497 128.96 2238.07 2.491 129.01 2239.07 2.486 129.06 2240.07 2.480 129.11 2241.07 2.474 129.16 2242.07 2.468 129.21 2243.07 2.462 129.26 2244.07 2.456 129.31 2245.07 2.450 129.36 2246.07 2.443 129.41 2247.07 2.437 129.47 2248.07 2.430 129.52 2249.07 2.423 129.57 2250.07 2.416 129.62 2251.07 2.409 129.68 2252.07 2.402 129.73 2253.07 2.395 129.78 2254.07 2.388 129.84 2255.07 2.380 129.89 2256.07 2.372 129.95 2257.07 2.365 130.00 2258.07 2.357 130.06 2259.07 2.349 130.12 2260.07 2.341 130.17 2261.07 2.333 130.23 2262.07 2.324 130.29 2263.07 2.316 130.34 2264.07 2.308 130.40 2265.07 2.299 130.46 2266.07 2.290 130.52 2267.07 2.282 130.58 2268.07 2.273 130.64 2269.07 2.264 130.70 2270.07 2.255 130.76 2271.07 2.246 130.82 2272.07 2.236 130.88 2273.07 2.227 130.94 2274.07 2.217 131.01 2275.07 2.208 131.07 2276.07 2.198 131.13 2277.07 2.188 131.20 2278.07 2.179 131.26 2279.07 2.169 131.33
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:03:52 |