| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:47:11 |
| WDS: | COU499 | WDS ID/Discoverer |
| P: | 316.830 | Orbital period (years) |
| a: | 0.284 | Semi-major axis (arcseconds) |
| i: | 124.6 | Inclination (degrees) |
| Ω: | 225.1 | Longitude of ascending node (degrees) |
| T: | 2003.650 | Epoch of periastron passage (year) |
| e: | 0.5 | Eccentricity |
| ω: | 216.5 | Longitude of periastron (degrees) |
| Start-Year: | 1867.0 | Year |
| End-Year: | 2183.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 173117.44+190102.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17313+1901 | WDS designation |
| Discoverer Code: | COU499 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 158956 | HD catalog number |
| Hipparcos number: | 85740 | Hipparcos catalog number |
| V1: | 8.7 | Magnitude of the primary |
| V2: | 8.7 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2017 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.112 287.1 ------------------------- 1867.0 0.338 194.5 1868.0 0.336 194.2 1869.0 0.335 193.8 1870.0 0.333 193.3 1871.0 0.331 192.9 1872.0 0.329 192.5 1873.0 0.327 192.1 1874.0 0.325 191.7 1875.0 0.323 191.3 1876.0 0.321 190.8 1877.0 0.319 190.4 1878.0 0.317 189.9 1879.0 0.315 189.5 1880.0 0.313 189.0 1881.0 0.310 188.6 1882.0 0.308 188.1 1883.0 0.306 187.6 1884.0 0.304 187.1 1885.0 0.302 186.6 1886.0 0.299 186.1 1887.0 0.297 185.6 1888.0 0.295 185.1 1889.0 0.293 184.6 1890.0 0.290 184.1 1891.0 0.288 183.5 1892.0 0.286 183.0 1893.0 0.283 182.4 1894.0 0.281 181.8 1895.0 0.279 181.3 1896.0 0.276 180.7 1897.0 0.274 180.1 1898.0 0.272 179.5 1899.0 0.269 178.9 1900.0 0.267 178.2 1901.0 0.264 177.6 1902.0 0.262 177.0 1903.0 0.259 176.3 1904.0 0.257 175.6 1905.0 0.255 174.9 1906.0 0.252 174.2 1907.0 0.250 173.5 1908.0 0.247 172.8 1909.0 0.245 172.0 1910.0 0.242 171.3 1911.0 0.240 170.5 1912.0 0.237 169.7 1913.0 0.235 168.9 1914.0 0.232 168.1 1915.0 0.230 167.2 1916.0 0.228 166.4 1917.0 0.225 165.5 1918.0 0.223 164.6 1919.0 0.220 163.7 1920.0 0.218 162.7 1921.0 0.216 161.8 1922.0 0.213 160.8 1923.0 0.211 159.8 1924.0 0.209 158.8 1925.0 0.206 157.7 1926.0 0.204 156.6 1927.0 0.202 155.5 1928.0 0.200 154.4 1929.0 0.197 153.3 1930.0 0.195 152.1 1931.0 0.193 150.9 1932.0 0.191 149.7 1933.0 0.189 148.5 1934.0 0.187 147.2 1935.0 0.185 145.9 1936.0 0.183 144.5 1937.0 0.181 143.2 1938.0 0.180 141.8 1939.0 0.178 140.4 1940.0 0.176 139.0 1941.0 0.175 137.5 1942.0 0.173 136.0 1943.0 0.172 134.5 1944.0 0.170 132.9 1945.0 0.169 131.4 1946.0 0.167 129.8 1947.0 0.166 128.2 1948.0 0.165 126.5 1949.0 0.164 124.9 1950.0 0.163 123.2 1951.0 0.162 121.5 1952.0 0.161 119.7 1953.0 0.161 118.0 1954.0 0.160 116.3 1955.0 0.159 114.5 1956.0 0.159 112.7 1957.0 0.158 110.9 1958.0 0.158 109.1 1959.0 0.158 107.3 1960.0 0.158 105.5 1961.0 0.157 103.7 1962.0 0.157 101.8 1963.0 0.157 100.0 1964.0 0.157 98.2 1965.0 0.157 96.4 1966.0 0.158 94.6 1967.0 0.158 92.8 1968.0 0.158 91.0 1969.0 0.158 89.2 1970.0 0.159 87.4 1971.0 0.159 85.6 1972.0 0.159 83.8 1973.0 0.160 82.0 1974.0 0.160 80.3 1975.0 0.161 78.5 1976.0 0.161 76.8 1977.0 0.161 75.0 1978.0 0.162 73.3 1979.0 0.162 71.6 1980.0 0.162 69.9 1981.0 0.162 68.1 1982.0 0.162 66.4 1983.0 0.162 64.7 1984.0 0.162 63.0 1985.0 0.162 61.3 1986.0 0.161 59.5 1987.0 0.161 57.8 1988.0 0.160 56.0 1989.0 0.159 54.3 1990.0 0.158 52.5 1991.0 0.157 50.7 1992.0 0.155 48.8 1993.0 0.154 46.9 1994.0 0.152 45.0 1995.0 0.150 43.0 1996.0 0.147 41.0 1997.0 0.145 38.9 1998.0 0.142 36.7 1999.0 0.139 34.4 2000.0 0.136 32.0 2001.0 0.133 29.5 2002.0 0.130 26.9 2003.0 0.126 24.2 2004.0 0.123 21.3 2005.0 0.119 18.2 2006.0 0.115 14.9 2007.0 0.112 11.4 2008.0 0.108 7.6 2009.0 0.105 3.7 2010.0 0.102 359.4 2011.0 0.099 354.9 2012.0 0.096 350.2 2013.0 0.094 345.2 2014.0 0.093 340.1 2015.0 0.092 334.8 2016.0 0.091 329.4 2017.0 0.092 324.0 2018.0 0.092 318.7 2019.0 0.094 313.5 2020.0 0.096 308.4 2021.0 0.098 303.6 2022.0 0.101 299.1 2023.0 0.104 294.8 2024.0 0.108 290.8 2025.0 0.112 287.1 2026.0 0.117 283.6 2027.0 0.121 280.5 2028.0 0.126 277.5 2029.0 0.131 274.8 2030.0 0.136 272.2 2031.0 0.141 269.9 2032.0 0.146 267.7 2033.0 0.151 265.6 2034.0 0.156 263.7 2035.0 0.162 261.9 2036.0 0.167 260.3 2037.0 0.172 258.7 2038.0 0.177 257.2 2039.0 0.183 255.8 2040.0 0.188 254.5 2041.0 0.193 253.3 2042.0 0.198 252.1 2043.0 0.203 251.0 2044.0 0.208 249.9 2045.0 0.213 248.9 2046.0 0.217 247.9 2047.0 0.222 247.0 2048.0 0.227 246.1 2049.0 0.231 245.2 2050.0 0.236 244.4 2051.0 0.240 243.6 2052.0 0.245 242.8 2053.0 0.249 242.1 2054.0 0.253 241.4 2055.0 0.258 240.7 2056.0 0.262 240.0 2057.0 0.266 239.4 2058.0 0.270 238.7 2059.0 0.274 238.1 2060.0 0.277 237.5 2061.0 0.281 237.0 2062.0 0.285 236.4 2063.0 0.288 235.9 2064.0 0.292 235.3 2065.0 0.295 234.8 2066.0 0.299 234.3 2067.0 0.302 233.8 2068.0 0.305 233.3 2069.0 0.308 232.8 2070.0 0.311 232.3 2071.0 0.314 231.9 2072.0 0.317 231.4 2073.0 0.320 231.0 2074.0 0.323 230.6 2075.0 0.326 230.1 2076.0 0.329 229.7 2077.0 0.331 229.3 2078.0 0.334 228.9 2079.0 0.336 228.5 2080.0 0.339 228.1 2081.0 0.341 227.7 2082.0 0.343 227.3 2083.0 0.346 226.9 2084.0 0.348 226.6 2085.0 0.350 226.2 2086.0 0.352 225.8 2087.0 0.354 225.5 2088.0 0.356 225.1 2089.0 0.358 224.8 2090.0 0.360 224.4 2091.0 0.362 224.1 2092.0 0.363 223.7 2093.0 0.365 223.4 2094.0 0.367 223.0 2095.0 0.368 222.7 2096.0 0.370 222.4 2097.0 0.371 222.0 2098.0 0.373 221.7 2099.0 0.374 221.4 2100.0 0.375 221.1 2101.0 0.377 220.8 2102.0 0.378 220.4 2103.0 0.379 220.1 2104.0 0.380 219.8 2105.0 0.381 219.5 2106.0 0.382 219.2 2107.0 0.383 218.9 2108.0 0.384 218.6 2109.0 0.385 218.3 2110.0 0.386 218.0 2111.0 0.386 217.7 2112.0 0.387 217.4 2113.0 0.388 217.1 2114.0 0.389 216.8 2115.0 0.389 216.5 2116.0 0.390 216.2 2117.0 0.390 215.9 2118.0 0.391 215.6 2119.0 0.391 215.3 2120.0 0.391 215.0 2121.0 0.392 214.7 2122.0 0.392 214.4 2123.0 0.392 214.1 2124.0 0.392 213.8 2125.0 0.393 213.5 2126.0 0.393 213.2 2127.0 0.393 212.9 2128.0 0.393 212.6 2129.0 0.393 212.4 2130.0 0.393 212.1 2131.0 0.393 211.8 2132.0 0.392 211.5 2133.0 0.392 211.2 2134.0 0.392 210.9 2135.0 0.392 210.6 2136.0 0.392 210.3 2137.0 0.391 210.0 2138.0 0.391 209.7 2139.0 0.390 209.4 2140.0 0.390 209.1 2141.0 0.390 208.8 2142.0 0.389 208.5 2143.0 0.389 208.2 2144.0 0.388 207.9 2145.0 0.387 207.6 2146.0 0.387 207.3 2147.0 0.386 207.0 2148.0 0.385 206.7 2149.0 0.384 206.4 2150.0 0.384 206.1 2151.0 0.383 205.8 2152.0 0.382 205.5 2153.0 0.381 205.2 2154.0 0.380 204.9 2155.0 0.379 204.6 2156.0 0.378 204.3 2157.0 0.377 203.9 2158.0 0.376 203.6 2159.0 0.375 203.3 2160.0 0.374 203.0 2161.0 0.373 202.7 2162.0 0.372 202.3 2163.0 0.370 202.0 2164.0 0.369 201.7 2165.0 0.368 201.3 2166.0 0.366 201.0 2167.0 0.365 200.7 2168.0 0.364 200.3 2169.0 0.362 200.0 2170.0 0.361 199.6 2171.0 0.359 199.3 2172.0 0.358 198.9 2173.0 0.356 198.6 2174.0 0.355 198.2 2175.0 0.353 197.9 2176.0 0.352 197.5 2177.0 0.350 197.1 2178.0 0.348 196.8 2179.0 0.347 196.4 2180.0 0.345 196.0 2181.0 0.343 195.6 2182.0 0.342 195.3