| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:03:56 |
| WDS: | COU1904 | WDS ID/Discoverer |
| P: | 228.300 | Orbital period (years) |
| a: | 0.559 | Semi-major axis (arcseconds) |
| i: | 79.1 | Inclination (degrees) |
| Ω: | 20.8 | Longitude of ascending node (degrees) |
| T: | 1972.700 | Epoch of periastron passage (year) |
| e: | 0.513 | Eccentricity |
| ω: | 104.0 | Longitude of periastron (degrees) |
| Start-Year: | 1911.0 | Year |
| End-Year: | 2139.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 111549.68+422658.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11158+4227 | WDS designation |
| Discoverer Code: | COU1904 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 97857 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 8.33 | Magnitude of the primary |
| V2: | 9.46 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | Date of last observation | |
| Orbit grade: | 4 | 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 0.339 219.4 ------------------------- 1911.0 0.543 11.4 1912.0 0.545 11.7 1913.0 0.547 11.9 1914.0 0.549 12.2 1915.0 0.551 12.5 1916.0 0.553 12.7 1917.0 0.554 13.0 1918.0 0.555 13.3 1919.0 0.556 13.5 1920.0 0.557 13.8 1921.0 0.557 14.0 1922.0 0.558 14.3 1923.0 0.558 14.5 1924.0 0.557 14.8 1925.0 0.557 15.1 1926.0 0.556 15.3 1927.0 0.554 15.6 1928.0 0.553 15.8 1929.0 0.551 16.1 1930.0 0.549 16.4 1931.0 0.546 16.6 1932.0 0.544 16.9 1933.0 0.540 17.2 1934.0 0.537 17.4 1935.0 0.533 17.7 1936.0 0.529 18.0 1937.0 0.524 18.3 1938.0 0.518 18.6 1939.0 0.513 18.9 1940.0 0.507 19.2 1941.0 0.500 19.5 1942.0 0.493 19.8 1943.0 0.485 20.2 1944.0 0.477 20.5 1945.0 0.468 20.9 1946.0 0.459 21.3 1947.0 0.449 21.6 1948.0 0.438 22.0 1949.0 0.427 22.5 1950.0 0.415 22.9 1951.0 0.403 23.4 1952.0 0.389 23.9 1953.0 0.375 24.5 1954.0 0.360 25.0 1955.0 0.345 25.7 1956.0 0.328 26.4 1957.0 0.311 27.2 1958.0 0.293 28.1 1959.0 0.274 29.1 1960.0 0.254 30.2 1961.0 0.234 31.5 1962.0 0.213 33.1 1963.0 0.191 35.1 1964.0 0.168 37.6 1965.0 0.146 40.9 1966.0 0.123 45.3 1967.0 0.100 51.9 1968.0 0.079 62.0 1969.0 0.062 78.6 1970.0 0.052 104.0 1971.0 0.056 132.6 1972.0 0.069 153.8 1973.0 0.089 166.9 1974.0 0.111 175.0 1975.0 0.133 180.5 1976.0 0.156 184.3 1977.0 0.178 187.2 1978.0 0.199 189.5 1979.0 0.220 191.3 1980.0 0.239 192.8 1981.0 0.258 194.1 1982.0 0.275 195.2 1983.0 0.291 196.2 1984.0 0.306 197.1 1985.0 0.320 198.0 1986.0 0.333 198.7 1987.0 0.344 199.4 1988.0 0.355 200.1 1989.0 0.365 200.7 1990.0 0.373 201.3 1991.0 0.381 201.8 1992.0 0.388 202.4 1993.0 0.394 202.9 1994.0 0.399 203.4 1995.0 0.404 203.9 1996.0 0.408 204.4 1997.0 0.411 204.9 1998.0 0.413 205.3 1999.0 0.415 205.8 2000.0 0.417 206.3 2001.0 0.418 206.7 2002.0 0.418 207.2 2003.0 0.418 207.6 2004.0 0.417 208.1 2005.0 0.417 208.6 2006.0 0.415 209.0 2007.0 0.414 209.5 2008.0 0.412 209.9 2009.0 0.409 210.4 2010.0 0.407 210.9 2011.0 0.404 211.4 2012.0 0.400 211.9 2013.0 0.397 212.4 2014.0 0.393 212.9 2015.0 0.389 213.4 2016.0 0.385 214.0 2017.0 0.381 214.5 2018.0 0.376 215.1 2019.0 0.371 215.6 2020.0 0.366 216.2 2021.0 0.361 216.8 2022.0 0.356 217.5 2023.0 0.350 218.1 2024.0 0.345 218.8 2025.0 0.339 219.4 2026.0 0.334 220.1 2027.0 0.328 220.9 2028.0 0.322 221.6 2029.0 0.316 222.4 2030.0 0.310 223.2 2031.0 0.304 224.1 2032.0 0.297 225.0 2033.0 0.291 225.9 2034.0 0.285 226.9 2035.0 0.279 227.9 2036.0 0.272 228.9 2037.0 0.266 230.0 2038.0 0.260 231.2 2039.0 0.253 232.4 2040.0 0.247 233.7 2041.0 0.241 235.0 2042.0 0.235 236.4 2043.0 0.229 237.9 2044.0 0.223 239.5 2045.0 0.217 241.2 2046.0 0.211 242.9 2047.0 0.206 244.7 2048.0 0.200 246.7 2049.0 0.195 248.7 2050.0 0.190 250.9 2051.0 0.185 253.2 2052.0 0.181 255.6 2053.0 0.176 258.1 2054.0 0.173 260.7 2055.0 0.169 263.4 2056.0 0.166 266.3 2057.0 0.163 269.3 2058.0 0.160 272.3 2059.0 0.158 275.5 2060.0 0.157 278.7 2061.0 0.156 282.0 2062.0 0.155 285.3 2063.0 0.155 288.6 2064.0 0.155 291.9 2065.0 0.156 295.3 2066.0 0.157 298.5 2067.0 0.159 301.7 2068.0 0.161 304.8 2069.0 0.164 307.8 2070.0 0.167 310.8 2071.0 0.170 313.6 2072.0 0.174 316.3 2073.0 0.178 318.8 2074.0 0.183 321.3 2075.0 0.187 323.6 2076.0 0.192 325.8 2077.0 0.198 328.0 2078.0 0.203 329.9 2079.0 0.208 331.8 2080.0 0.214 333.6 2081.0 0.220 335.3 2082.0 0.226 336.9 2083.0 0.232 338.5 2084.0 0.239 339.9 2085.0 0.245 341.3 2086.0 0.251 342.6 2087.0 0.258 343.8 2088.0 0.264 345.0 2089.0 0.271 346.1 2090.0 0.278 347.2 2091.0 0.284 348.2 2092.0 0.291 349.1 2093.0 0.298 350.1 2094.0 0.304 350.9 2095.0 0.311 351.8 2096.0 0.318 352.6 2097.0 0.324 353.4 2098.0 0.331 354.1 2099.0 0.338 354.8 2100.0 0.344 355.5 2101.0 0.351 356.2 2102.0 0.358 356.8 2103.0 0.364 357.4 2104.0 0.371 358.0 2105.0 0.377 358.6 2106.0 0.383 359.2 2107.0 0.390 359.7 2108.0 0.396 0.2 2109.0 0.402 0.7 2110.0 0.408 1.2 2111.0 0.414 1.7 2112.0 0.420 2.1 2113.0 0.426 2.6 2114.0 0.432 3.0 2115.0 0.438 3.4 2116.0 0.444 3.8 2117.0 0.449 4.2 2118.0 0.455 4.6 2119.0 0.460 5.0 2120.0 0.465 5.4 2121.0 0.471 5.8 2122.0 0.476 6.1 2123.0 0.481 6.5 2124.0 0.486 6.8 2125.0 0.490 7.1 2126.0 0.495 7.5 2127.0 0.499 7.8 2128.0 0.504 8.1 2129.0 0.508 8.4 2130.0 0.512 8.7 2131.0 0.516 9.0 2132.0 0.520 9.3 2133.0 0.524 9.6 2134.0 0.527 9.9 2135.0 0.530 10.2 2136.0 0.534 10.5 2137.0 0.537 10.8 2138.0 0.539 11.0