| WDS: | I658 | WDS ID/Discoverer |
| P: | 416.800 | Orbital period (years) |
| a: | 1.098 | Semi-major axis (arcseconds) |
| i: | 134.0 | Inclination (degrees) |
| Ω: | 98.7 | Longitude of ascending node (degrees) |
| T: | 1895.400 | Epoch of periastron passage (year) |
| e: | 0.474 | Eccentricity |
| ω: | 169.8 | Longitude of periastron (degrees) |
| Start-Year: | 1816.6 | Year |
| End-Year: | 2233.4 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for I658 |
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| Position: | 194937.33-552527.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 19496-5525 | WDS designation |
| Discoverer Code: | I658 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 186836 | HD catalog number |
| Hipparcos number: | 97548 | Hipparcos catalog number |
| V1: | 9.16 | Magnitude of the primary |
| V2: | 10.06 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | 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: | Doc2017i | 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 1.294 128.30 -------------------------- 1816.60 0.973 61.92 1817.60 0.962 61.24 1818.60 0.951 60.55 1819.60 0.940 59.83 1820.60 0.930 59.11 1821.60 0.919 58.36 1822.60 0.908 57.60 1823.60 0.897 56.81 1824.60 0.886 56.01 1825.60 0.875 55.19 1826.60 0.864 54.35 1827.60 0.853 53.48 1828.60 0.842 52.60 1829.60 0.831 51.69 1830.60 0.820 50.75 1831.60 0.808 49.79 1832.60 0.797 48.80 1833.60 0.786 47.79 1834.60 0.775 46.74 1835.60 0.764 45.67 1836.60 0.753 44.56 1837.60 0.742 43.42 1838.60 0.731 42.25 1839.60 0.721 41.04 1840.60 0.710 39.79 1841.60 0.699 38.51 1842.60 0.689 37.19 1843.60 0.678 35.83 1844.60 0.668 34.42 1845.60 0.658 32.97 1846.60 0.648 31.48 1847.60 0.638 29.94 1848.60 0.629 28.35 1849.60 0.620 26.72 1850.60 0.610 25.03 1851.60 0.602 23.30 1852.60 0.593 21.52 1853.60 0.585 19.68 1854.60 0.577 17.79 1855.60 0.569 15.85 1856.60 0.562 13.86 1857.60 0.555 11.82 1858.60 0.549 9.72 1859.60 0.542 7.58 1860.60 0.537 5.40 1861.60 0.532 3.16 1862.60 0.527 0.89 1863.60 0.523 358.58 1864.60 0.519 356.23 1865.60 0.516 353.84 1866.60 0.513 351.44 1867.60 0.510 349.00 1868.60 0.509 346.55 1869.60 0.507 344.08 1870.60 0.507 341.60 1871.60 0.506 339.12 1872.60 0.507 336.64 1873.60 0.507 334.16 1874.60 0.508 331.69 1875.60 0.510 329.23 1876.60 0.512 326.79 1877.60 0.514 324.36 1878.60 0.516 321.96 1879.60 0.519 319.58 1880.60 0.522 317.24 1881.60 0.525 314.91 1882.60 0.529 312.62 1883.60 0.533 310.36 1884.60 0.536 308.13 1885.60 0.540 305.93 1886.60 0.544 303.76 1887.60 0.547 301.62 1888.60 0.551 299.51 1889.60 0.555 297.43 1890.60 0.558 295.37 1891.60 0.562 293.34 1892.60 0.565 291.33 1893.60 0.568 289.35 1894.60 0.571 287.38 1895.60 0.573 285.44 1896.60 0.576 283.51 1897.60 0.578 281.59 1898.60 0.580 279.69 1899.60 0.581 277.80 1900.60 0.583 275.92 1901.60 0.584 274.05 1902.60 0.584 272.18 1903.60 0.585 270.32 1904.60 0.585 268.46 1905.60 0.585 266.60 1906.60 0.585 264.74 1907.60 0.585 262.88 1908.60 0.585 261.02 1909.60 0.584 259.15 1910.60 0.583 257.28 1911.60 0.583 255.41 1912.60 0.582 253.53 1913.60 0.581 251.64 1914.60 0.580 249.75 1915.60 0.579 247.85 1916.60 0.578 245.95 1917.60 0.577 244.04 1918.60 0.576 242.12 1919.60 0.575 240.20 1920.60 0.575 238.28 1921.60 0.574 236.35 1922.60 0.574 234.41 1923.60 0.574 232.48 1924.60 0.574 230.54 1925.60 0.574 228.61 1926.60 0.574 226.67 1927.60 0.575 224.74 1928.60 0.576 222.82 1929.60 0.577 220.90 1930.60 0.578 218.99 1931.60 0.580 217.09 1932.60 0.582 215.20 1933.60 0.584 213.32 1934.60 0.586 211.46 1935.60 0.589 209.62 1936.60 0.592 207.79 1937.60 0.596 205.99 1938.60 0.599 204.20 1939.60 0.603 202.44 1940.60 0.607 200.70 1941.60 0.612 198.98 1942.60 0.616 197.29 1943.60 0.621 195.63 1944.60 0.626 193.99 1945.60 0.632 192.38 1946.60 0.637 190.80 1947.60 0.643 189.25 1948.60 0.650 187.72 1949.60 0.656 186.23 1950.60 0.662 184.76 1951.60 0.669 183.33 1952.60 0.676 181.92 1953.60 0.683 180.54 1954.60 0.690 179.19 1955.60 0.698 177.87 1956.60 0.705 176.57 1957.60 0.713 175.31 1958.60 0.721 174.07 1959.60 0.729 172.85 1960.60 0.737 171.67 1961.60 0.745 170.51 1962.60 0.754 169.37 1963.60 0.762 168.27 1964.60 0.770 167.18 1965.60 0.779 166.12 1966.60 0.788 165.08 1967.60 0.796 164.07 1968.60 0.805 163.07 1969.60 0.814 162.10 1970.60 0.823 161.15 1971.60 0.832 160.22 1972.60 0.841 159.31 1973.60 0.850 158.42 1974.60 0.859 157.54 1975.60 0.868 156.69 1976.60 0.877 155.85 1977.60 0.886 155.03 1978.60 0.895 154.23 1979.60 0.904 153.44 1980.60 0.913 152.67 1981.60 0.922 151.91 1982.60 0.931 151.17 1983.60 0.941 150.44 1984.60 0.950 149.73 1985.60 0.959 149.03 1986.60 0.968 148.35 1987.60 0.977 147.67 1988.60 0.986 147.01 1989.60 0.995 146.36 1990.60 1.004 145.72 1991.60 1.013 145.10 1992.60 1.022 144.48 1993.60 1.030 143.87 1994.60 1.039 143.28 1995.60 1.048 142.70 1996.60 1.057 142.12 1997.60 1.066 141.55 1998.60 1.074 141.00 1999.60 1.083 140.45 2000.60 1.091 139.91 2001.60 1.100 139.38 2002.60 1.108 138.86 2003.60 1.117 138.34 2004.60 1.125 137.84 2005.60 1.134 137.34 2006.60 1.142 136.85 2007.60 1.150 136.36 2008.60 1.158 135.88 2009.60 1.166 135.41 2010.60 1.174 134.95 2011.60 1.182 134.49 2012.60 1.190 134.04 2013.60 1.198 133.59 2014.60 1.206 133.15 2015.60 1.214 132.71 2016.60 1.221 132.28 2017.60 1.229 131.86 2018.60 1.237 131.44 2019.60 1.244 131.03 2020.60 1.252 130.62 2021.60 1.259 130.21 2022.60 1.266 129.81 2023.60 1.273 129.42 2024.60 1.281 129.03 2025.60 1.288 128.64 2026.60 1.295 128.26 2027.60 1.302 127.88 2028.60 1.309 127.51 2029.60 1.315 127.14 2030.60 1.322 126.77 2031.60 1.329 126.41 2032.60 1.335 126.05 2033.60 1.342 125.69 2034.60 1.348 125.34 2035.60 1.355 124.99 2036.60 1.361 124.65 2037.60 1.367 124.31 2038.60 1.373 123.97 2039.60 1.379 123.63 2040.60 1.385 123.30 2041.60 1.391 122.97 2042.60 1.397 122.64 2043.60 1.403 122.31 2044.60 1.409 121.99 2045.60 1.414 121.67 2046.60 1.420 121.35 2047.60 1.425 121.04 2048.60 1.431 120.73 2049.60 1.436 120.42 2050.60 1.441 120.11 2051.60 1.447 119.80 2052.60 1.452 119.50 2053.60 1.457 119.20 2054.60 1.462 118.90 2055.60 1.466 118.60 2056.60 1.471 118.31 2057.60 1.476 118.02 2058.60 1.480 117.72 2059.60 1.485 117.43 2060.60 1.490 117.15 2061.60 1.494 116.86 2062.60 1.498 116.58 2063.60 1.502 116.29 2064.60 1.507 116.01 2065.60 1.511 115.73 2066.60 1.515 115.45 2067.60 1.519 115.18 2068.60 1.522 114.90 2069.60 1.526 114.63 2070.60 1.530 114.35 2071.60 1.533 114.08 2072.60 1.537 113.81 2073.60 1.540 113.54 2074.60 1.544 113.27 2075.60 1.547 113.01 2076.60 1.550 112.74 2077.60 1.553 112.48 2078.60 1.556 112.21 2079.60 1.559 111.95 2080.60 1.562 111.69 2081.60 1.565 111.43 2082.60 1.567 111.17 2083.60 1.570 110.91 2084.60 1.573 110.65 2085.60 1.575 110.40 2086.60 1.577 110.14 2087.60 1.580 109.88 2088.60 1.582 109.63 2089.60 1.584 109.37 2090.60 1.586 109.12 2091.60 1.588 108.87 2092.60 1.590 108.62 2093.60 1.592 108.36 2094.60 1.593 108.11 2095.60 1.595 107.86 2096.60 1.597 107.61 2097.60 1.598 107.36 2098.60 1.599 107.11 2099.60 1.601 106.87 2100.60 1.602 106.62 2101.60 1.603 106.37 2102.60 1.604 106.12 2103.60 1.605 105.87 2104.60 1.606 105.63 2105.60 1.607 105.38 2106.60 1.607 105.13 2107.60 1.608 104.89 2108.60 1.609 104.64 2109.60 1.609 104.39 2110.60 1.609 104.15 2111.60 1.610 103.90 2112.60 1.610 103.66 2113.60 1.610 103.41 2114.60 1.610 103.17 2115.60 1.610 102.92 2116.60 1.610 102.67 2117.60 1.610 102.43 2118.60 1.609 102.18 2119.60 1.609 101.94 2120.60 1.608 101.69 2121.60 1.608 101.44 2122.60 1.607 101.20 2123.60 1.606 100.95 2124.60 1.606 100.70 2125.60 1.605 100.46 2126.60 1.604 100.21 2127.60 1.603 99.96 2128.60 1.601 99.71 2129.60 1.600 99.46 2130.60 1.599 99.22 2131.60 1.597 98.97 2132.60 1.596 98.72 2133.60 1.594 98.47 2134.60 1.593 98.22 2135.60 1.591 97.96 2136.60 1.589 97.71 2137.60 1.587 97.46 2138.60 1.585 97.21 2139.60 1.583 96.95 2140.60 1.580 96.70 2141.60 1.578 96.44 2142.60 1.576 96.19 2143.60 1.573 95.93 2144.60 1.571 95.67 2145.60 1.568 95.41 2146.60 1.565 95.15 2147.60 1.562 94.89 2148.60 1.559 94.63 2149.60 1.556 94.37 2150.60 1.553 94.11 2151.60 1.550 93.84 2152.60 1.547 93.57 2153.60 1.543 93.31 2154.60 1.540 93.04 2155.60 1.536 92.77 2156.60 1.532 92.50 2157.60 1.529 92.23 2158.60 1.525 91.95 2159.60 1.521 91.68 2160.60 1.517 91.40 2161.60 1.513 91.13 2162.60 1.509 90.85 2163.60 1.504 90.57 2164.60 1.500 90.28 2165.60 1.495 90.00 2166.60 1.491 89.71 2167.60 1.486 89.43 2168.60 1.481 89.14 2169.60 1.476 88.85 2170.60 1.471 88.55 2171.60 1.466 88.26 2172.60 1.461 87.96 2173.60 1.456 87.66 2174.60 1.451 87.36 2175.60 1.445 87.06 2176.60 1.440 86.75 2177.60 1.434 86.44 2178.60 1.428 86.13 2179.60 1.422 85.82 2180.60 1.417 85.50 2181.60 1.411 85.18 2182.60 1.404 84.86 2183.60 1.398 84.54 2184.60 1.392 84.21 2185.60 1.386 83.88 2186.60 1.379 83.55 2187.60 1.373 83.21 2188.60 1.366 82.87 2189.60 1.359 82.53 2190.60 1.352 82.18 2191.60 1.345 81.83 2192.60 1.338 81.48 2193.60 1.331 81.12 2194.60 1.324 80.76 2195.60 1.316 80.39 2196.60 1.309 80.02 2197.60 1.302 79.65 2198.60 1.294 79.27 2199.60 1.286 78.89 2200.60 1.278 78.50 2201.60 1.270 78.11 2202.60 1.262 77.71 2203.60 1.254 77.31 2204.60 1.246 76.90 2205.60 1.238 76.49 2206.60 1.230 76.07 2207.60 1.221 75.64 2208.60 1.213 75.21 2209.60 1.204 74.78 2210.60 1.195 74.34 2211.60 1.186 73.89 2212.60 1.177 73.43 2213.60 1.168 72.97 2214.60 1.159 72.50 2215.60 1.150 72.02 2216.60 1.141 71.53 2217.60 1.131 71.04 2218.60 1.122 70.54 2219.60 1.112 70.03 2220.60 1.103 69.51 2221.60 1.093 68.98 2222.60 1.083 68.44 2223.60 1.073 67.90 2224.60 1.063 67.34 2225.60 1.053 66.77 2226.60 1.043 66.19 2227.60 1.033 65.60 2228.60 1.023 65.00 2229.60 1.012 64.38 2230.60 1.002 63.75 2231.60 0.992 63.11 2232.60 0.981 62.46
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:09:10 |