| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:20:46 |
| WDS: | COU547 | WDS ID/Discoverer |
| P: | 265.000 | Orbital period (years) |
| a: | 0.322 | Semi-major axis (arcseconds) |
| i: | 79.9 | Inclination (degrees) |
| Ω: | 31.7 | Longitude of ascending node (degrees) |
| T: | 1984.900 | Epoch of periastron passage (year) |
| e: | 0.737 | Eccentricity |
| ω: | 295.9 | Longitude of periastron (degrees) |
| Start-Year: | 1893.0 | Year |
| End-Year: | 2157.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 003200.65+273944.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00320+2740 | WDS designation |
| Discoverer Code: | COU547 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 2854 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 8.9 | Magnitude of the primary |
| V2: | 9.1 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2007 | 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 0.096 70.2 ------------------------- 1893.0 0.335 199.4 1894.0 0.336 199.6 1895.0 0.337 199.7 1896.0 0.338 199.9 1897.0 0.339 200.0 1898.0 0.340 200.1 1899.0 0.341 200.3 1900.0 0.342 200.4 1901.0 0.343 200.6 1902.0 0.344 200.7 1903.0 0.344 200.9 1904.0 0.345 201.0 1905.0 0.346 201.1 1906.0 0.346 201.3 1907.0 0.347 201.4 1908.0 0.347 201.6 1909.0 0.348 201.7 1910.0 0.348 201.8 1911.0 0.348 202.0 1912.0 0.349 202.1 1913.0 0.349 202.2 1914.0 0.349 202.4 1915.0 0.349 202.5 1916.0 0.349 202.7 1917.0 0.349 202.8 1918.0 0.349 202.9 1919.0 0.349 203.1 1920.0 0.348 203.2 1921.0 0.348 203.3 1922.0 0.348 203.5 1923.0 0.347 203.6 1924.0 0.347 203.8 1925.0 0.346 203.9 1926.0 0.345 204.0 1927.0 0.345 204.2 1928.0 0.344 204.3 1929.0 0.343 204.5 1930.0 0.342 204.6 1931.0 0.341 204.7 1932.0 0.339 204.9 1933.0 0.338 205.0 1934.0 0.337 205.2 1935.0 0.335 205.3 1936.0 0.334 205.5 1937.0 0.332 205.6 1938.0 0.330 205.8 1939.0 0.328 205.9 1940.0 0.326 206.1 1941.0 0.324 206.2 1942.0 0.322 206.4 1943.0 0.320 206.6 1944.0 0.317 206.7 1945.0 0.315 206.9 1946.0 0.312 207.1 1947.0 0.309 207.2 1948.0 0.306 207.4 1949.0 0.303 207.6 1950.0 0.299 207.8 1951.0 0.296 208.0 1952.0 0.292 208.2 1953.0 0.288 208.4 1954.0 0.284 208.6 1955.0 0.280 208.8 1956.0 0.275 209.0 1957.0 0.271 209.2 1958.0 0.266 209.5 1959.0 0.260 209.7 1960.0 0.255 209.9 1961.0 0.249 210.2 1962.0 0.243 210.5 1963.0 0.237 210.8 1964.0 0.230 211.1 1965.0 0.223 211.4 1966.0 0.216 211.7 1967.0 0.208 212.1 1968.0 0.200 212.5 1969.0 0.191 213.0 1970.0 0.182 213.4 1971.0 0.173 214.0 1972.0 0.162 214.6 1973.0 0.152 215.2 1974.0 0.140 216.0 1975.0 0.128 217.0 1976.0 0.115 218.1 1977.0 0.101 219.5 1978.0 0.087 221.4 1979.0 0.071 224.1 1980.0 0.055 228.4 1981.0 0.039 236.3 1982.0 0.023 255.4 1983.0 0.016 309.3 1984.0 0.025 356.6 1985.0 0.041 12.9 1986.0 0.057 20.0 1987.0 0.071 24.1 1988.0 0.084 26.9 1989.0 0.096 29.0 1990.0 0.105 30.6 1991.0 0.113 32.0 1992.0 0.120 33.3 1993.0 0.125 34.4 1994.0 0.129 35.4 1995.0 0.132 36.4 1996.0 0.135 37.3 1997.0 0.137 38.2 1998.0 0.138 39.1 1999.0 0.139 40.0 2000.0 0.139 40.8 2001.0 0.139 41.7 2002.0 0.139 42.6 2003.0 0.138 43.4 2004.0 0.137 44.3 2005.0 0.136 45.2 2006.0 0.135 46.1 2007.0 0.134 47.0 2008.0 0.132 48.0 2009.0 0.130 49.0 2010.0 0.129 50.0 2011.0 0.127 51.0 2012.0 0.125 52.0 2013.0 0.123 53.1 2014.0 0.120 54.3 2015.0 0.118 55.4 2016.0 0.116 56.7 2017.0 0.114 57.9 2018.0 0.112 59.2 2019.0 0.109 60.6 2020.0 0.107 62.0 2021.0 0.105 63.5 2022.0 0.102 65.1 2023.0 0.100 66.7 2024.0 0.098 68.4 2025.0 0.096 70.2 2026.0 0.094 72.0 2027.0 0.092 74.0 2028.0 0.090 76.0 2029.0 0.088 78.1 2030.0 0.086 80.3 2031.0 0.085 82.6 2032.0 0.083 85.0 2033.0 0.082 87.4 2034.0 0.080 90.0 2035.0 0.079 92.6 2036.0 0.078 95.3 2037.0 0.077 98.1 2038.0 0.077 100.9 2039.0 0.076 103.8 2040.0 0.076 106.7 2041.0 0.075 109.6 2042.0 0.075 112.6 2043.0 0.076 115.5 2044.0 0.076 118.4 2045.0 0.076 121.3 2046.0 0.077 124.1 2047.0 0.078 126.9 2048.0 0.079 129.6 2049.0 0.080 132.2 2050.0 0.082 134.8 2051.0 0.083 137.2 2052.0 0.085 139.6 2053.0 0.086 141.9 2054.0 0.088 144.1 2055.0 0.090 146.2 2056.0 0.092 148.2 2057.0 0.094 150.1 2058.0 0.097 152.0 2059.0 0.099 153.7 2060.0 0.101 155.4 2061.0 0.104 157.0 2062.0 0.106 158.5 2063.0 0.109 159.9 2064.0 0.111 161.3 2065.0 0.114 162.6 2066.0 0.117 163.9 2067.0 0.119 165.1 2068.0 0.122 166.2 2069.0 0.125 167.3 2070.0 0.128 168.4 2071.0 0.131 169.4 2072.0 0.133 170.3 2073.0 0.136 171.2 2074.0 0.139 172.1 2075.0 0.142 173.0 2076.0 0.145 173.8 2077.0 0.148 174.6 2078.0 0.151 175.3 2079.0 0.154 176.0 2080.0 0.157 176.7 2081.0 0.160 177.4 2082.0 0.163 178.0 2083.0 0.165 178.7 2084.0 0.168 179.3 2085.0 0.171 179.8 2086.0 0.174 180.4 2087.0 0.177 180.9 2088.0 0.180 181.5 2089.0 0.183 182.0 2090.0 0.186 182.5 2091.0 0.189 182.9 2092.0 0.192 183.4 2093.0 0.195 183.8 2094.0 0.197 184.3 2095.0 0.200 184.7 2096.0 0.203 185.1 2097.0 0.206 185.5 2098.0 0.209 185.9 2099.0 0.211 186.3 2100.0 0.214 186.6 2101.0 0.217 187.0 2102.0 0.220 187.4 2103.0 0.222 187.7 2104.0 0.225 188.0 2105.0 0.228 188.4 2106.0 0.231 188.7 2107.0 0.233 189.0 2108.0 0.236 189.3 2109.0 0.239 189.6 2110.0 0.241 189.9 2111.0 0.244 190.2 2112.0 0.246 190.4 2113.0 0.249 190.7 2114.0 0.251 191.0 2115.0 0.254 191.2 2116.0 0.256 191.5 2117.0 0.259 191.7 2118.0 0.261 192.0 2119.0 0.264 192.2 2120.0 0.266 192.5 2121.0 0.268 192.7 2122.0 0.271 192.9 2123.0 0.273 193.2 2124.0 0.275 193.4 2125.0 0.278 193.6 2126.0 0.280 193.8 2127.0 0.282 194.0 2128.0 0.284 194.2 2129.0 0.286 194.4 2130.0 0.288 194.6 2131.0 0.291 194.8 2132.0 0.293 195.0 2133.0 0.295 195.2 2134.0 0.297 195.4 2135.0 0.299 195.6 2136.0 0.301 195.8 2137.0 0.303 196.0 2138.0 0.304 196.2 2139.0 0.306 196.3 2140.0 0.308 196.5 2141.0 0.310 196.7 2142.0 0.312 196.9 2143.0 0.313 197.0 2144.0 0.315 197.2 2145.0 0.317 197.4 2146.0 0.318 197.5 2147.0 0.320 197.7 2148.0 0.322 197.9 2149.0 0.323 198.0 2150.0 0.325 198.2 2151.0 0.326 198.3 2152.0 0.327 198.5 2153.0 0.329 198.7 2154.0 0.330 198.8 2155.0 0.331 199.0 2156.0 0.333 199.1