| WDS: | I881 | WDS ID/Discoverer |
| P: | 450.000 | Orbital period (years) |
| a: | 0.589 | Semi-major axis (arcseconds) |
| i: | 78.2 | Inclination (degrees) |
| Ω: | 148.5 | Longitude of ascending node (degrees) |
| T: | 1997.224 | Epoch of periastron passage (year) |
| e: | 0.343 | Eccentricity |
| ω: | 100.4 | Longitude of periastron (degrees) |
| Start-Year: | 1800.0 | Year |
| End-Year: | 2250.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for I881 |
||
| Position: | 112530.00-211342.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11255-2114 | WDS designation |
| Discoverer Code: | I881 | Discover designation and components |
| ADS number: | 8156 | Aitken Double Star catalog |
| HD number: | 99308 | HD catalog number |
| Hipparcos number: | 55758 | Hipparcos catalog number |
| V1: | 9.0 | Magnitude of the primary |
| V2: | 10.0 | 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: | Tok2023a | 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 0.363 321.32 -------------------------- 1800.00 0.329 121.72 1801.00 0.334 122.20 1802.00 0.338 122.68 1803.00 0.342 123.14 1804.00 0.347 123.59 1805.00 0.351 124.03 1806.00 0.355 124.45 1807.00 0.360 124.87 1808.00 0.364 125.28 1809.00 0.368 125.68 1810.00 0.372 126.07 1811.00 0.377 126.45 1812.00 0.381 126.82 1813.00 0.385 127.18 1814.00 0.389 127.54 1815.00 0.393 127.88 1816.00 0.398 128.23 1817.00 0.402 128.56 1818.00 0.406 128.89 1819.00 0.410 129.21 1820.00 0.414 129.52 1821.00 0.418 129.83 1822.00 0.422 130.13 1823.00 0.426 130.43 1824.00 0.430 130.72 1825.00 0.434 131.00 1826.00 0.438 131.28 1827.00 0.442 131.56 1828.00 0.446 131.83 1829.00 0.450 132.10 1830.00 0.453 132.36 1831.00 0.457 132.62 1832.00 0.461 132.87 1833.00 0.464 133.12 1834.00 0.468 133.36 1835.00 0.472 133.60 1836.00 0.475 133.84 1837.00 0.479 134.08 1838.00 0.482 134.31 1839.00 0.486 134.53 1840.00 0.489 134.76 1841.00 0.493 134.98 1842.00 0.496 135.20 1843.00 0.499 135.41 1844.00 0.503 135.63 1845.00 0.506 135.84 1846.00 0.509 136.04 1847.00 0.512 136.25 1848.00 0.515 136.45 1849.00 0.518 136.65 1850.00 0.521 136.85 1851.00 0.524 137.04 1852.00 0.527 137.23 1853.00 0.530 137.43 1854.00 0.533 137.61 1855.00 0.535 137.80 1856.00 0.538 137.99 1857.00 0.541 138.17 1858.00 0.543 138.35 1859.00 0.546 138.53 1860.00 0.548 138.71 1861.00 0.551 138.89 1862.00 0.553 139.06 1863.00 0.555 139.23 1864.00 0.558 139.41 1865.00 0.560 139.58 1866.00 0.562 139.75 1867.00 0.564 139.91 1868.00 0.566 140.08 1869.00 0.568 140.25 1870.00 0.570 140.41 1871.00 0.572 140.58 1872.00 0.573 140.74 1873.00 0.575 140.90 1874.00 0.577 141.06 1875.00 0.578 141.22 1876.00 0.579 141.38 1877.00 0.581 141.54 1878.00 0.582 141.70 1879.00 0.583 141.85 1880.00 0.585 142.01 1881.00 0.586 142.17 1882.00 0.587 142.32 1883.00 0.588 142.48 1884.00 0.589 142.63 1885.00 0.589 142.78 1886.00 0.590 142.94 1887.00 0.591 143.09 1888.00 0.591 143.24 1889.00 0.592 143.39 1890.00 0.592 143.55 1891.00 0.592 143.70 1892.00 0.592 143.85 1893.00 0.593 144.00 1894.00 0.593 144.15 1895.00 0.593 144.31 1896.00 0.592 144.46 1897.00 0.592 144.61 1898.00 0.592 144.76 1899.00 0.591 144.91 1900.00 0.591 145.07 1901.00 0.590 145.22 1902.00 0.589 145.37 1903.00 0.589 145.53 1904.00 0.588 145.68 1905.00 0.587 145.84 1906.00 0.585 145.99 1907.00 0.584 146.15 1908.00 0.583 146.30 1909.00 0.581 146.46 1910.00 0.580 146.62 1911.00 0.578 146.78 1912.00 0.576 146.94 1913.00 0.575 147.10 1914.00 0.573 147.26 1915.00 0.570 147.42 1916.00 0.568 147.59 1917.00 0.566 147.75 1918.00 0.563 147.92 1919.00 0.561 148.09 1920.00 0.558 148.26 1921.00 0.555 148.43 1922.00 0.552 148.61 1923.00 0.549 148.78 1924.00 0.546 148.96 1925.00 0.543 149.14 1926.00 0.539 149.32 1927.00 0.535 149.51 1928.00 0.532 149.69 1929.00 0.528 149.88 1930.00 0.524 150.08 1931.00 0.520 150.27 1932.00 0.515 150.47 1933.00 0.511 150.68 1934.00 0.506 150.88 1935.00 0.502 151.09 1936.00 0.497 151.30 1937.00 0.492 151.52 1938.00 0.487 151.75 1939.00 0.482 151.97 1940.00 0.476 152.21 1941.00 0.471 152.44 1942.00 0.465 152.69 1943.00 0.459 152.94 1944.00 0.453 153.19 1945.00 0.447 153.46 1946.00 0.441 153.73 1947.00 0.434 154.01 1948.00 0.428 154.29 1949.00 0.421 154.59 1950.00 0.414 154.90 1951.00 0.407 155.21 1952.00 0.400 155.54 1953.00 0.392 155.88 1954.00 0.385 156.23 1955.00 0.377 156.60 1956.00 0.370 156.98 1957.00 0.362 157.38 1958.00 0.354 157.80 1959.00 0.345 158.23 1960.00 0.337 158.69 1961.00 0.329 159.17 1962.00 0.320 159.68 1963.00 0.311 160.21 1964.00 0.303 160.78 1965.00 0.294 161.38 1966.00 0.285 162.02 1967.00 0.275 162.70 1968.00 0.266 163.42 1969.00 0.257 164.20 1970.00 0.247 165.04 1971.00 0.238 165.95 1972.00 0.228 166.93 1973.00 0.219 168.00 1974.00 0.209 169.17 1975.00 0.199 170.45 1976.00 0.189 171.86 1977.00 0.180 173.43 1978.00 0.170 175.17 1979.00 0.161 177.12 1980.00 0.151 179.32 1981.00 0.142 181.81 1982.00 0.133 184.65 1983.00 0.124 187.89 1984.00 0.115 191.63 1985.00 0.107 195.93 1986.00 0.100 200.90 1987.00 0.094 206.59 1988.00 0.088 213.07 1989.00 0.084 220.32 1990.00 0.081 228.21 1991.00 0.080 236.53 1992.00 0.080 244.95 1993.00 0.082 253.13 1994.00 0.085 260.79 1995.00 0.090 267.74 1996.00 0.096 273.90 1997.00 0.103 279.30 1998.00 0.111 283.99 1999.00 0.119 288.06 2000.00 0.127 291.59 2001.00 0.136 294.67 2002.00 0.145 297.36 2003.00 0.155 299.73 2004.00 0.164 301.83 2005.00 0.174 303.70 2006.00 0.183 305.37 2007.00 0.193 306.88 2008.00 0.203 308.24 2009.00 0.212 309.48 2010.00 0.222 310.62 2011.00 0.231 311.66 2012.00 0.241 312.61 2013.00 0.250 313.50 2014.00 0.259 314.32 2015.00 0.268 315.09 2016.00 0.277 315.81 2017.00 0.286 316.48 2018.00 0.295 317.11 2019.00 0.303 317.71 2020.00 0.312 318.27 2021.00 0.320 318.80 2022.00 0.328 319.31 2023.00 0.336 319.79 2024.00 0.344 320.25 2025.00 0.352 320.69 2026.00 0.359 321.12 2027.00 0.366 321.52 2028.00 0.373 321.91 2029.00 0.380 322.29 2030.00 0.387 322.65 2031.00 0.394 323.00 2032.00 0.400 323.34 2033.00 0.406 323.67 2034.00 0.412 323.98 2035.00 0.418 324.29 2036.00 0.424 324.59 2037.00 0.429 324.89 2038.00 0.435 325.17 2039.00 0.440 325.45 2040.00 0.445 325.72 2041.00 0.450 325.99 2042.00 0.454 326.25 2043.00 0.459 326.51 2044.00 0.463 326.76 2045.00 0.467 327.00 2046.00 0.471 327.25 2047.00 0.475 327.48 2048.00 0.478 327.72 2049.00 0.482 327.95 2050.00 0.485 328.18 2051.00 0.488 328.40 2052.00 0.491 328.63 2053.00 0.494 328.85 2054.00 0.496 329.06 2055.00 0.499 329.28 2056.00 0.501 329.49 2057.00 0.503 329.70 2058.00 0.505 329.91 2059.00 0.507 330.12 2060.00 0.509 330.33 2061.00 0.511 330.53 2062.00 0.512 330.74 2063.00 0.513 330.94 2064.00 0.515 331.14 2065.00 0.516 331.34 2066.00 0.517 331.54 2067.00 0.517 331.74 2068.00 0.518 331.94 2069.00 0.519 332.14 2070.00 0.519 332.34 2071.00 0.519 332.53 2072.00 0.519 332.73 2073.00 0.519 332.93 2074.00 0.519 333.13 2075.00 0.519 333.32 2076.00 0.519 333.52 2077.00 0.519 333.72 2078.00 0.518 333.92 2079.00 0.517 334.12 2080.00 0.517 334.32 2081.00 0.516 334.52 2082.00 0.515 334.72 2083.00 0.514 334.92 2084.00 0.513 335.12 2085.00 0.512 335.33 2086.00 0.510 335.53 2087.00 0.509 335.73 2088.00 0.507 335.94 2089.00 0.506 336.15 2090.00 0.504 336.36 2091.00 0.502 336.57 2092.00 0.501 336.78 2093.00 0.499 336.99 2094.00 0.497 337.21 2095.00 0.495 337.43 2096.00 0.492 337.65 2097.00 0.490 337.87 2098.00 0.488 338.09 2099.00 0.486 338.31 2100.00 0.483 338.54 2101.00 0.481 338.77 2102.00 0.478 339.00 2103.00 0.475 339.24 2104.00 0.473 339.48 2105.00 0.470 339.72 2106.00 0.467 339.96 2107.00 0.464 340.20 2108.00 0.461 340.45 2109.00 0.458 340.71 2110.00 0.455 340.96 2111.00 0.452 341.22 2112.00 0.449 341.48 2113.00 0.445 341.75 2114.00 0.442 342.02 2115.00 0.439 342.30 2116.00 0.435 342.58 2117.00 0.432 342.86 2118.00 0.429 343.15 2119.00 0.425 343.44 2120.00 0.421 343.74 2121.00 0.418 344.04 2122.00 0.414 344.35 2123.00 0.410 344.66 2124.00 0.407 344.98 2125.00 0.403 345.31 2126.00 0.399 345.64 2127.00 0.395 345.98 2128.00 0.391 346.32 2129.00 0.388 346.67 2130.00 0.384 347.03 2131.00 0.380 347.40 2132.00 0.376 347.77 2133.00 0.372 348.15 2134.00 0.368 348.54 2135.00 0.363 348.94 2136.00 0.359 349.35 2137.00 0.355 349.77 2138.00 0.351 350.19 2139.00 0.347 350.63 2140.00 0.343 351.08 2141.00 0.339 351.54 2142.00 0.334 352.01 2143.00 0.330 352.49 2144.00 0.326 352.99 2145.00 0.322 353.50 2146.00 0.317 354.02 2147.00 0.313 354.56 2148.00 0.309 355.11 2149.00 0.305 355.67 2150.00 0.300 356.25 2151.00 0.296 356.85 2152.00 0.292 357.47 2153.00 0.288 358.10 2154.00 0.283 358.76 2155.00 0.279 359.43 2156.00 0.275 0.13 2157.00 0.271 0.84 2158.00 0.267 1.58 2159.00 0.263 2.34 2160.00 0.258 3.13 2161.00 0.254 3.94 2162.00 0.250 4.78 2163.00 0.246 5.64 2164.00 0.242 6.54 2165.00 0.238 7.46 2166.00 0.234 8.42 2167.00 0.230 9.41 2168.00 0.226 10.43 2169.00 0.223 11.49 2170.00 0.219 12.58 2171.00 0.215 13.71 2172.00 0.212 14.88 2173.00 0.208 16.09 2174.00 0.205 17.34 2175.00 0.201 18.64 2176.00 0.198 19.97 2177.00 0.195 21.35 2178.00 0.192 22.78 2179.00 0.189 24.25 2180.00 0.186 25.77 2181.00 0.183 27.34 2182.00 0.181 28.95 2183.00 0.178 30.61 2184.00 0.176 32.31 2185.00 0.174 34.06 2186.00 0.171 35.85 2187.00 0.170 37.68 2188.00 0.168 39.56 2189.00 0.166 41.47 2190.00 0.165 43.41 2191.00 0.164 45.39 2192.00 0.163 47.39 2193.00 0.162 49.42 2194.00 0.161 51.46 2195.00 0.161 53.52 2196.00 0.160 55.59 2197.00 0.160 57.66 2198.00 0.160 59.73 2199.00 0.161 61.80 2200.00 0.161 63.86 2201.00 0.162 65.90 2202.00 0.163 67.91 2203.00 0.164 69.91 2204.00 0.165 71.88 2205.00 0.167 73.81 2206.00 0.168 75.71 2207.00 0.170 77.57 2208.00 0.172 79.39 2209.00 0.174 81.17 2210.00 0.177 82.90 2211.00 0.179 84.59 2212.00 0.181 86.23 2213.00 0.184 87.83 2214.00 0.187 89.38 2215.00 0.190 90.88 2216.00 0.193 92.34 2217.00 0.196 93.75 2218.00 0.199 95.11 2219.00 0.203 96.44 2220.00 0.206 97.71 2221.00 0.209 98.95 2222.00 0.213 100.15 2223.00 0.217 101.30 2224.00 0.220 102.42 2225.00 0.224 103.50 2226.00 0.228 104.54 2227.00 0.232 105.55 2228.00 0.236 106.53 2229.00 0.240 107.47 2230.00 0.244 108.38 2231.00 0.248 109.26 2232.00 0.252 110.12 2233.00 0.256 110.95 2234.00 0.260 111.75 2235.00 0.264 112.52 2236.00 0.269 113.27 2237.00 0.273 114.00 2238.00 0.277 114.70 2239.00 0.281 115.39 2240.00 0.286 116.05 2241.00 0.290 116.69 2242.00 0.294 117.32 2243.00 0.299 117.92 2244.00 0.303 118.51 2245.00 0.307 119.08 2246.00 0.312 119.64 2247.00 0.316 120.18 2248.00 0.320 120.71 2249.00 0.325 121.22
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 16:38:27 |