| WDS: | WSI87AD | WDS ID/Discoverer |
| P: | 300.000 | Orbital period (years) |
| a: | 0.28 | Semi-major axis (arcseconds) |
| i: | 90.0 | Inclination (degrees) |
| Ω: | 271.5 | Longitude of ascending node (degrees) |
| T: | 1969.000 | Epoch of periastron passage (year) |
| e: | 0.8 | Eccentricity |
| ω: | 242.0 | Longitude of periastron (degrees) |
| Start-Year: | 1875.0 | Year |
| End-Year: | 2175.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for WSI87AD |
||
| Position: | 172445.86-591249.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17248-5913 | WDS designation |
| Discoverer Code: | WSI87AD | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 157081 | HD catalog number |
| Hipparcos number: | 85216 | Hipparcos catalog number |
| V1: | 7.56 | Magnitude of the primary |
| V2: | 8.1 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2022 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Tok2023c | 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 0.291 271.50 -------------------------- 1875.00 0.115 271.50 1876.00 0.113 271.50 1877.00 0.110 271.50 1878.00 0.108 271.50 1879.00 0.105 271.50 1880.00 0.102 271.50 1881.00 0.100 271.50 1882.00 0.097 271.50 1883.00 0.095 271.50 1884.00 0.092 271.50 1885.00 0.089 271.50 1886.00 0.087 271.50 1887.00 0.084 271.50 1888.00 0.081 271.50 1889.00 0.079 271.50 1890.00 0.076 271.50 1891.00 0.073 271.50 1892.00 0.070 271.50 1893.00 0.068 271.50 1894.00 0.065 271.50 1895.00 0.062 271.50 1896.00 0.059 271.50 1897.00 0.057 271.50 1898.00 0.054 271.50 1899.00 0.051 271.50 1900.00 0.048 271.50 1901.00 0.045 271.50 1902.00 0.043 271.50 1903.00 0.040 271.50 1904.00 0.037 271.50 1905.00 0.034 271.50 1906.00 0.031 271.50 1907.00 0.029 271.50 1908.00 0.026 271.50 1909.00 0.023 271.50 1910.00 0.020 271.50 1911.00 0.017 271.50 1912.00 0.014 271.50 1913.00 0.011 271.50 1914.00 0.009 271.50 1915.00 0.006 271.50 1916.00 0.003 271.50 1917.00 0.000 91.50 1918.00 0.003 91.50 1919.00 0.006 91.50 1920.00 0.009 91.50 1921.00 0.012 91.50 1922.00 0.014 91.50 1923.00 0.017 91.50 1924.00 0.020 91.50 1925.00 0.023 91.50 1926.00 0.026 91.50 1927.00 0.029 91.50 1928.00 0.031 91.50 1929.00 0.034 91.50 1930.00 0.037 91.50 1931.00 0.040 91.50 1932.00 0.043 91.50 1933.00 0.045 91.50 1934.00 0.048 91.50 1935.00 0.051 91.50 1936.00 0.053 91.50 1937.00 0.056 91.50 1938.00 0.059 91.50 1939.00 0.061 91.50 1940.00 0.064 91.50 1941.00 0.066 91.50 1942.00 0.069 91.50 1943.00 0.071 91.50 1944.00 0.074 91.50 1945.00 0.076 91.50 1946.00 0.078 91.50 1947.00 0.080 91.50 1948.00 0.082 91.50 1949.00 0.084 91.50 1950.00 0.086 91.50 1951.00 0.087 91.50 1952.00 0.089 91.50 1953.00 0.090 91.50 1954.00 0.091 91.50 1955.00 0.092 91.50 1956.00 0.093 91.50 1957.00 0.093 91.50 1958.00 0.093 91.50 1959.00 0.092 91.50 1960.00 0.091 91.50 1961.00 0.089 91.50 1962.00 0.087 91.50 1963.00 0.083 91.50 1964.00 0.078 91.50 1965.00 0.072 91.50 1966.00 0.064 91.50 1967.00 0.054 91.50 1968.00 0.041 91.50 1969.00 0.026 91.50 1970.00 0.010 91.50 1971.00 0.006 271.50 1972.00 0.023 271.50 1973.00 0.038 271.50 1974.00 0.053 271.50 1975.00 0.067 271.50 1976.00 0.079 271.50 1977.00 0.091 271.50 1978.00 0.102 271.50 1979.00 0.112 271.50 1980.00 0.122 271.50 1981.00 0.131 271.50 1982.00 0.139 271.50 1983.00 0.147 271.50 1984.00 0.155 271.50 1985.00 0.162 271.50 1986.00 0.168 271.50 1987.00 0.175 271.50 1988.00 0.181 271.50 1989.00 0.187 271.50 1990.00 0.192 271.50 1991.00 0.197 271.50 1992.00 0.202 271.50 1993.00 0.207 271.50 1994.00 0.212 271.50 1995.00 0.216 271.50 1996.00 0.220 271.50 1997.00 0.224 271.50 1998.00 0.228 271.50 1999.00 0.232 271.50 2000.00 0.235 271.50 2001.00 0.239 271.50 2002.00 0.242 271.50 2003.00 0.245 271.50 2004.00 0.248 271.50 2005.00 0.251 271.50 2006.00 0.254 271.50 2007.00 0.257 271.50 2008.00 0.259 271.50 2009.00 0.262 271.50 2010.00 0.264 271.50 2011.00 0.266 271.50 2012.00 0.269 271.50 2013.00 0.271 271.50 2014.00 0.273 271.50 2015.00 0.275 271.50 2016.00 0.276 271.50 2017.00 0.278 271.50 2018.00 0.280 271.50 2019.00 0.282 271.50 2020.00 0.283 271.50 2021.00 0.285 271.50 2022.00 0.286 271.50 2023.00 0.287 271.50 2024.00 0.289 271.50 2025.00 0.290 271.50 2026.00 0.291 271.50 2027.00 0.292 271.50 2028.00 0.293 271.50 2029.00 0.294 271.50 2030.00 0.295 271.50 2031.00 0.296 271.50 2032.00 0.297 271.50 2033.00 0.297 271.50 2034.00 0.298 271.50 2035.00 0.299 271.50 2036.00 0.299 271.50 2037.00 0.300 271.50 2038.00 0.300 271.50 2039.00 0.301 271.50 2040.00 0.301 271.50 2041.00 0.302 271.50 2042.00 0.302 271.50 2043.00 0.302 271.50 2044.00 0.303 271.50 2045.00 0.303 271.50 2046.00 0.303 271.50 2047.00 0.303 271.50 2048.00 0.303 271.50 2049.00 0.303 271.50 2050.00 0.303 271.50 2051.00 0.303 271.50 2052.00 0.303 271.50 2053.00 0.303 271.50 2054.00 0.303 271.50 2055.00 0.303 271.50 2056.00 0.303 271.50 2057.00 0.302 271.50 2058.00 0.302 271.50 2059.00 0.302 271.50 2060.00 0.302 271.50 2061.00 0.301 271.50 2062.00 0.301 271.50 2063.00 0.300 271.50 2064.00 0.300 271.50 2065.00 0.300 271.50 2066.00 0.299 271.50 2067.00 0.298 271.50 2068.00 0.298 271.50 2069.00 0.297 271.50 2070.00 0.297 271.50 2071.00 0.296 271.50 2072.00 0.295 271.50 2073.00 0.295 271.50 2074.00 0.294 271.50 2075.00 0.293 271.50 2076.00 0.292 271.50 2077.00 0.291 271.50 2078.00 0.291 271.50 2079.00 0.290 271.50 2080.00 0.289 271.50 2081.00 0.288 271.50 2082.00 0.287 271.50 2083.00 0.286 271.50 2084.00 0.285 271.50 2085.00 0.284 271.50 2086.00 0.283 271.50 2087.00 0.282 271.50 2088.00 0.281 271.50 2089.00 0.280 271.50 2090.00 0.279 271.50 2091.00 0.277 271.50 2092.00 0.276 271.50 2093.00 0.275 271.50 2094.00 0.274 271.50 2095.00 0.273 271.50 2096.00 0.271 271.50 2097.00 0.270 271.50 2098.00 0.269 271.50 2099.00 0.267 271.50 2100.00 0.266 271.50 2101.00 0.265 271.50 2102.00 0.263 271.50 2103.00 0.262 271.50 2104.00 0.260 271.50 2105.00 0.259 271.50 2106.00 0.257 271.50 2107.00 0.256 271.50 2108.00 0.254 271.50 2109.00 0.253 271.50 2110.00 0.251 271.50 2111.00 0.250 271.50 2112.00 0.248 271.50 2113.00 0.247 271.50 2114.00 0.245 271.50 2115.00 0.243 271.50 2116.00 0.242 271.50 2117.00 0.240 271.50 2118.00 0.238 271.50 2119.00 0.237 271.50 2120.00 0.235 271.50 2121.00 0.233 271.50 2122.00 0.231 271.50 2123.00 0.230 271.50 2124.00 0.228 271.50 2125.00 0.226 271.50 2126.00 0.224 271.50 2127.00 0.222 271.50 2128.00 0.220 271.50 2129.00 0.218 271.50 2130.00 0.217 271.50 2131.00 0.215 271.50 2132.00 0.213 271.50 2133.00 0.211 271.50 2134.00 0.209 271.50 2135.00 0.207 271.50 2136.00 0.205 271.50 2137.00 0.203 271.50 2138.00 0.201 271.50 2139.00 0.199 271.50 2140.00 0.197 271.50 2141.00 0.195 271.50 2142.00 0.192 271.50 2143.00 0.190 271.50 2144.00 0.188 271.50 2145.00 0.186 271.50 2146.00 0.184 271.50 2147.00 0.182 271.50 2148.00 0.180 271.50 2149.00 0.177 271.50 2150.00 0.175 271.50 2151.00 0.173 271.50 2152.00 0.171 271.50 2153.00 0.168 271.50 2154.00 0.166 271.50 2155.00 0.164 271.50 2156.00 0.162 271.50 2157.00 0.159 271.50 2158.00 0.157 271.50 2159.00 0.155 271.50 2160.00 0.152 271.50 2161.00 0.150 271.50 2162.00 0.147 271.50 2163.00 0.145 271.50 2164.00 0.143 271.50 2165.00 0.140 271.50 2166.00 0.138 271.50 2167.00 0.135 271.50 2168.00 0.133 271.50 2169.00 0.130 271.50 2170.00 0.128 271.50 2171.00 0.125 271.50 2172.00 0.123 271.50 2173.00 0.120 271.50 2174.00 0.118 271.50
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:38:19 |