| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:18:34 |
| WDS: | BU1138AB | WDS ID/Discoverer |
| P: | 314.090 | Orbital period (years) |
| a: | 0.26 | Semi-major axis (arcseconds) |
| i: | 96.4 | Inclination (degrees) |
| Ω: | 181.7 | Longitude of ascending node (degrees) |
| T: | 2003.290 | Epoch of periastron passage (year) |
| e: | 0.5 | Eccentricity |
| ω: | 302.8 | Longitude of periastron (degrees) |
| Start-Year: | 1868.0 | Year |
| End-Year: | 2182.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 210248.62+455056.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21028+4551 | WDS designation |
| Discoverer Code: | BU1138AB | Discover designation and components |
| ADS number: | 14585 | Aitken Double Star catalog |
| HD number: | 200595 | HD catalog number |
| Hipparcos number: | 103871 | Hipparcos catalog number |
| V1: | 7.1 | Magnitude of the primary |
| V2: | 7.3 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1985 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.163 180.1 ------------------------- 1868.0 0.262 8.6 1869.0 0.263 8.5 1870.0 0.265 8.4 1871.0 0.267 8.3 1872.0 0.269 8.2 1873.0 0.271 8.1 1874.0 0.272 8.0 1875.0 0.274 7.9 1876.0 0.275 7.8 1877.0 0.277 7.7 1878.0 0.279 7.6 1879.0 0.280 7.5 1880.0 0.282 7.4 1881.0 0.283 7.3 1882.0 0.284 7.2 1883.0 0.286 7.1 1884.0 0.287 7.1 1885.0 0.288 7.0 1886.0 0.290 6.9 1887.0 0.291 6.8 1888.0 0.292 6.7 1889.0 0.293 6.6 1890.0 0.294 6.5 1891.0 0.295 6.4 1892.0 0.296 6.4 1893.0 0.297 6.3 1894.0 0.298 6.2 1895.0 0.299 6.1 1896.0 0.300 6.0 1897.0 0.301 5.9 1898.0 0.301 5.8 1899.0 0.302 5.8 1900.0 0.303 5.7 1901.0 0.303 5.6 1902.0 0.304 5.5 1903.0 0.304 5.4 1904.0 0.305 5.4 1905.0 0.305 5.3 1906.0 0.306 5.2 1907.0 0.306 5.1 1908.0 0.306 5.0 1909.0 0.306 5.0 1910.0 0.307 4.9 1911.0 0.307 4.8 1912.0 0.307 4.7 1913.0 0.307 4.6 1914.0 0.307 4.6 1915.0 0.307 4.5 1916.0 0.306 4.4 1917.0 0.306 4.3 1918.0 0.306 4.2 1919.0 0.306 4.2 1920.0 0.305 4.1 1921.0 0.305 4.0 1922.0 0.304 3.9 1923.0 0.304 3.8 1924.0 0.303 3.8 1925.0 0.302 3.7 1926.0 0.301 3.6 1927.0 0.300 3.5 1928.0 0.300 3.4 1929.0 0.299 3.3 1930.0 0.297 3.3 1931.0 0.296 3.2 1932.0 0.295 3.1 1933.0 0.294 3.0 1934.0 0.292 2.9 1935.0 0.291 2.8 1936.0 0.289 2.7 1937.0 0.288 2.7 1938.0 0.286 2.6 1939.0 0.284 2.5 1940.0 0.283 2.4 1941.0 0.281 2.3 1942.0 0.279 2.2 1943.0 0.276 2.1 1944.0 0.274 2.0 1945.0 0.272 1.9 1946.0 0.270 1.8 1947.0 0.267 1.7 1948.0 0.264 1.6 1949.0 0.262 1.5 1950.0 0.259 1.4 1951.0 0.256 1.2 1952.0 0.253 1.1 1953.0 0.250 1.0 1954.0 0.247 0.9 1955.0 0.243 0.8 1956.0 0.240 0.6 1957.0 0.236 0.5 1958.0 0.233 0.4 1959.0 0.229 0.2 1960.0 0.225 0.1 1961.0 0.221 359.9 1962.0 0.217 359.8 1963.0 0.213 359.6 1964.0 0.208 359.5 1965.0 0.204 359.3 1966.0 0.199 359.1 1967.0 0.194 358.9 1968.0 0.189 358.7 1969.0 0.184 358.5 1970.0 0.179 358.2 1971.0 0.173 358.0 1972.0 0.168 357.8 1973.0 0.162 357.5 1974.0 0.156 357.2 1975.0 0.150 356.9 1976.0 0.144 356.5 1977.0 0.138 356.1 1978.0 0.131 355.7 1979.0 0.124 355.3 1980.0 0.118 354.8 1981.0 0.111 354.2 1982.0 0.104 353.5 1983.0 0.096 352.8 1984.0 0.089 351.9 1985.0 0.081 350.9 1986.0 0.074 349.6 1987.0 0.066 348.1 1988.0 0.058 346.2 1989.0 0.051 343.6 1990.0 0.043 340.2 1991.0 0.035 335.2 1992.0 0.028 327.6 1993.0 0.021 315.0 1994.0 0.017 293.4 1995.0 0.015 262.7 1996.0 0.019 235.7 1997.0 0.024 219.0 1998.0 0.031 209.2 1999.0 0.039 203.0 2000.0 0.047 198.9 2001.0 0.054 195.9 2002.0 0.062 193.7 2003.0 0.069 192.0 2004.0 0.077 190.5 2005.0 0.084 189.4 2006.0 0.091 188.4 2007.0 0.097 187.5 2008.0 0.104 186.8 2009.0 0.110 186.1 2010.0 0.115 185.6 2011.0 0.121 185.0 2012.0 0.126 184.5 2013.0 0.131 184.1 2014.0 0.135 183.7 2015.0 0.139 183.3 2016.0 0.143 182.9 2017.0 0.146 182.5 2018.0 0.149 182.2 2019.0 0.152 181.8 2020.0 0.155 181.5 2021.0 0.157 181.2 2022.0 0.159 180.9 2023.0 0.161 180.6 2024.0 0.162 180.3 2025.0 0.163 180.1 2026.0 0.164 179.8 2027.0 0.165 179.5 2028.0 0.165 179.2 2029.0 0.166 179.0 2030.0 0.166 178.7 2031.0 0.166 178.4 2032.0 0.165 178.1 2033.0 0.165 177.9 2034.0 0.164 177.6 2035.0 0.164 177.3 2036.0 0.163 177.0 2037.0 0.162 176.7 2038.0 0.160 176.5 2039.0 0.159 176.2 2040.0 0.158 175.9 2041.0 0.156 175.6 2042.0 0.155 175.3 2043.0 0.153 174.9 2044.0 0.151 174.6 2045.0 0.149 174.3 2046.0 0.147 173.9 2047.0 0.145 173.6 2048.0 0.143 173.2 2049.0 0.141 172.9 2050.0 0.139 172.5 2051.0 0.136 172.1 2052.0 0.134 171.7 2053.0 0.131 171.2 2054.0 0.129 170.8 2055.0 0.126 170.3 2056.0 0.124 169.9 2057.0 0.121 169.4 2058.0 0.118 168.8 2059.0 0.116 168.3 2060.0 0.113 167.7 2061.0 0.110 167.1 2062.0 0.107 166.5 2063.0 0.105 165.8 2064.0 0.102 165.1 2065.0 0.099 164.4 2066.0 0.096 163.6 2067.0 0.093 162.8 2068.0 0.090 161.9 2069.0 0.087 160.9 2070.0 0.084 159.9 2071.0 0.082 158.8 2072.0 0.079 157.7 2073.0 0.076 156.4 2074.0 0.073 155.1 2075.0 0.070 153.6 2076.0 0.067 152.0 2077.0 0.065 150.3 2078.0 0.062 148.4 2079.0 0.059 146.4 2080.0 0.057 144.1 2081.0 0.054 141.7 2082.0 0.052 139.0 2083.0 0.049 136.1 2084.0 0.047 132.9 2085.0 0.045 129.4 2086.0 0.043 125.6 2087.0 0.042 121.5 2088.0 0.040 117.1 2089.0 0.039 112.3 2090.0 0.038 107.4 2091.0 0.038 102.2 2092.0 0.037 96.9 2093.0 0.037 91.6 2094.0 0.038 86.3 2095.0 0.038 81.2 2096.0 0.039 76.2 2097.0 0.041 71.6 2098.0 0.042 67.2 2099.0 0.044 63.1 2100.0 0.046 59.4 2101.0 0.048 55.9 2102.0 0.050 52.8 2103.0 0.052 49.9 2104.0 0.055 47.3 2105.0 0.057 44.9 2106.0 0.060 42.7 2107.0 0.063 40.7 2108.0 0.065 38.9 2109.0 0.068 37.2 2110.0 0.071 35.7 2111.0 0.074 34.2 2112.0 0.077 32.9 2113.0 0.080 31.7 2114.0 0.083 30.6 2115.0 0.086 29.5 2116.0 0.089 28.5 2117.0 0.092 27.6 2118.0 0.095 26.7 2119.0 0.098 25.9 2120.0 0.101 25.2 2121.0 0.104 24.4 2122.0 0.107 23.8 2123.0 0.110 23.1 2124.0 0.113 22.5 2125.0 0.116 22.0 2126.0 0.119 21.4 2127.0 0.122 20.9 2128.0 0.125 20.4 2129.0 0.128 19.9 2130.0 0.131 19.5 2131.0 0.134 19.1 2132.0 0.137 18.6 2133.0 0.140 18.3 2134.0 0.143 17.9 2135.0 0.146 17.5 2136.0 0.149 17.2 2137.0 0.151 16.8 2138.0 0.154 16.5 2139.0 0.157 16.2 2140.0 0.160 15.9 2141.0 0.163 15.6 2142.0 0.166 15.3 2143.0 0.169 15.1 2144.0 0.171 14.8 2145.0 0.174 14.6 2146.0 0.177 14.3 2147.0 0.180 14.1 2148.0 0.182 13.9 2149.0 0.185 13.6 2150.0 0.188 13.4 2151.0 0.190 13.2 2152.0 0.193 13.0 2153.0 0.196 12.8 2154.0 0.198 12.6 2155.0 0.201 12.4 2156.0 0.204 12.3 2157.0 0.206 12.1 2158.0 0.209 11.9 2159.0 0.211 11.7 2160.0 0.214 11.6 2161.0 0.216 11.4 2162.0 0.218 11.2 2163.0 0.221 11.1 2164.0 0.223 10.9 2165.0 0.226 10.8 2166.0 0.228 10.6 2167.0 0.230 10.5 2168.0 0.233 10.4 2169.0 0.235 10.2 2170.0 0.237 10.1 2171.0 0.239 10.0 2172.0 0.241 9.8 2173.0 0.243 9.7 2174.0 0.246 9.6 2175.0 0.248 9.5 2176.0 0.250 9.3 2177.0 0.252 9.2 2178.0 0.254 9.1 2179.0 0.256 9.0 2180.0 0.258 8.9 2181.0 0.260 8.8