| WDS: | A1639AB | WDS ID/Discoverer |
| P: | 314.000 | Orbital period (years) |
| a: | 0.291 | Semi-major axis (arcseconds) |
| i: | 35.8 | Inclination (degrees) |
| Ω: | 5.1 | Longitude of ascending node (degrees) |
| T: | 1938.000 | Epoch of periastron passage (year) |
| e: | 0.0 | Eccentricity |
| ω: | 0.0 | Longitude of periastron (degrees) |
| Start-Year: | 1868.0 | Year |
| End-Year: | 2182.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A1639AB |
||
| Position: | 160016.25+114012.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16003+1140 | WDS designation |
| Discoverer Code: | A1639AB | Discover designation and components |
| ADS number: | 9872 | Aitken Double Star catalog |
| HD number: | 143480 | HD catalog number |
| Hipparcos number: | 78394 | Hipparcos catalog number |
| V1: | 9.82 | Magnitude of the primary |
| V2: | 11.15 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Zir2012b | 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 0.238 109.14 -------------------------- 1868.00 0.238 287.06 1869.00 0.238 288.45 1870.00 0.239 289.83 1871.00 0.239 291.21 1872.00 0.240 292.58 1873.00 0.240 293.95 1874.00 0.241 295.31 1875.00 0.242 296.66 1876.00 0.242 298.01 1877.00 0.243 299.34 1878.00 0.244 300.67 1879.00 0.245 301.99 1880.00 0.246 303.30 1881.00 0.246 304.60 1882.00 0.247 305.89 1883.00 0.248 307.17 1884.00 0.249 308.45 1885.00 0.250 309.71 1886.00 0.251 310.96 1887.00 0.252 312.20 1888.00 0.253 313.44 1889.00 0.254 314.66 1890.00 0.255 315.87 1891.00 0.256 317.07 1892.00 0.258 318.27 1893.00 0.259 319.45 1894.00 0.260 320.62 1895.00 0.261 321.78 1896.00 0.262 322.94 1897.00 0.263 324.08 1898.00 0.264 325.21 1899.00 0.265 326.34 1900.00 0.266 327.45 1901.00 0.267 328.56 1902.00 0.268 329.65 1903.00 0.270 330.74 1904.00 0.271 331.82 1905.00 0.272 332.89 1906.00 0.273 333.96 1907.00 0.274 335.01 1908.00 0.275 336.06 1909.00 0.276 337.10 1910.00 0.277 338.13 1911.00 0.278 339.16 1912.00 0.278 340.18 1913.00 0.279 341.19 1914.00 0.280 342.20 1915.00 0.281 343.20 1916.00 0.282 344.19 1917.00 0.283 345.18 1918.00 0.283 346.16 1919.00 0.284 347.14 1920.00 0.285 348.11 1921.00 0.285 349.08 1922.00 0.286 350.05 1923.00 0.287 351.01 1924.00 0.287 351.97 1925.00 0.288 352.92 1926.00 0.288 353.87 1927.00 0.289 354.81 1928.00 0.289 355.76 1929.00 0.289 356.70 1930.00 0.290 357.64 1931.00 0.290 358.58 1932.00 0.290 359.51 1933.00 0.291 0.45 1934.00 0.291 1.38 1935.00 0.291 2.31 1936.00 0.291 3.24 1937.00 0.291 4.17 1938.00 0.291 5.10 1939.00 0.291 6.03 1940.00 0.291 6.96 1941.00 0.291 7.89 1942.00 0.291 8.82 1943.00 0.291 9.75 1944.00 0.290 10.69 1945.00 0.290 11.62 1946.00 0.290 12.56 1947.00 0.289 13.50 1948.00 0.289 14.44 1949.00 0.289 15.39 1950.00 0.288 16.33 1951.00 0.288 17.28 1952.00 0.287 18.23 1953.00 0.287 19.19 1954.00 0.286 20.15 1955.00 0.285 21.12 1956.00 0.285 22.09 1957.00 0.284 23.06 1958.00 0.283 24.04 1959.00 0.283 25.02 1960.00 0.282 26.01 1961.00 0.281 27.00 1962.00 0.280 28.00 1963.00 0.279 29.01 1964.00 0.278 30.02 1965.00 0.278 31.04 1966.00 0.277 32.07 1967.00 0.276 33.10 1968.00 0.275 34.14 1969.00 0.274 35.19 1970.00 0.273 36.24 1971.00 0.272 37.31 1972.00 0.271 38.38 1973.00 0.270 39.46 1974.00 0.268 40.55 1975.00 0.267 41.64 1976.00 0.266 42.75 1977.00 0.265 43.86 1978.00 0.264 44.99 1979.00 0.263 46.12 1980.00 0.262 47.26 1981.00 0.261 48.42 1982.00 0.260 49.58 1983.00 0.259 50.75 1984.00 0.258 51.93 1985.00 0.256 53.13 1986.00 0.255 54.33 1987.00 0.254 55.54 1988.00 0.253 56.76 1989.00 0.252 58.00 1990.00 0.251 59.24 1991.00 0.250 60.49 1992.00 0.249 61.75 1993.00 0.248 63.03 1994.00 0.247 64.31 1995.00 0.246 65.60 1996.00 0.246 66.90 1997.00 0.245 68.21 1998.00 0.244 69.53 1999.00 0.243 70.86 2000.00 0.242 72.19 2001.00 0.242 73.54 2002.00 0.241 74.89 2003.00 0.240 76.25 2004.00 0.240 77.62 2005.00 0.239 78.99 2006.00 0.239 80.37 2007.00 0.238 81.75 2008.00 0.238 83.14 2009.00 0.237 84.54 2010.00 0.237 85.94 2011.00 0.237 87.34 2012.00 0.237 88.75 2013.00 0.236 90.16 2014.00 0.236 91.57 2015.00 0.236 92.98 2016.00 0.236 94.39 2017.00 0.236 95.81 2018.00 0.236 97.22 2019.00 0.236 98.63 2020.00 0.236 100.04 2021.00 0.237 101.45 2022.00 0.237 102.86 2023.00 0.237 104.26 2024.00 0.237 105.66 2025.00 0.238 107.06 2026.00 0.238 108.45 2027.00 0.239 109.83 2028.00 0.239 111.21 2029.00 0.240 112.58 2030.00 0.240 113.95 2031.00 0.241 115.31 2032.00 0.242 116.66 2033.00 0.242 118.01 2034.00 0.243 119.34 2035.00 0.244 120.67 2036.00 0.245 121.99 2037.00 0.246 123.30 2038.00 0.246 124.60 2039.00 0.247 125.89 2040.00 0.248 127.17 2041.00 0.249 128.45 2042.00 0.250 129.71 2043.00 0.251 130.96 2044.00 0.252 132.20 2045.00 0.253 133.44 2046.00 0.254 134.66 2047.00 0.255 135.87 2048.00 0.256 137.07 2049.00 0.258 138.27 2050.00 0.259 139.45 2051.00 0.260 140.62 2052.00 0.261 141.78 2053.00 0.262 142.94 2054.00 0.263 144.08 2055.00 0.264 145.21 2056.00 0.265 146.34 2057.00 0.266 147.45 2058.00 0.267 148.56 2059.00 0.268 149.65 2060.00 0.270 150.74 2061.00 0.271 151.82 2062.00 0.272 152.89 2063.00 0.273 153.96 2064.00 0.274 155.01 2065.00 0.275 156.06 2066.00 0.276 157.10 2067.00 0.277 158.13 2068.00 0.278 159.16 2069.00 0.278 160.18 2070.00 0.279 161.19 2071.00 0.280 162.20 2072.00 0.281 163.20 2073.00 0.282 164.19 2074.00 0.283 165.18 2075.00 0.283 166.16 2076.00 0.284 167.14 2077.00 0.285 168.11 2078.00 0.285 169.08 2079.00 0.286 170.05 2080.00 0.287 171.01 2081.00 0.287 171.97 2082.00 0.288 172.92 2083.00 0.288 173.87 2084.00 0.289 174.81 2085.00 0.289 175.76 2086.00 0.289 176.70 2087.00 0.290 177.64 2088.00 0.290 178.58 2089.00 0.290 179.51 2090.00 0.291 180.45 2091.00 0.291 181.38 2092.00 0.291 182.31 2093.00 0.291 183.24 2094.00 0.291 184.17 2095.00 0.291 185.10 2096.00 0.291 186.03 2097.00 0.291 186.96 2098.00 0.291 187.89 2099.00 0.291 188.82 2100.00 0.291 189.75 2101.00 0.290 190.69 2102.00 0.290 191.62 2103.00 0.290 192.56 2104.00 0.289 193.50 2105.00 0.289 194.44 2106.00 0.289 195.39 2107.00 0.288 196.33 2108.00 0.288 197.28 2109.00 0.287 198.23 2110.00 0.287 199.19 2111.00 0.286 200.15 2112.00 0.285 201.12 2113.00 0.285 202.09 2114.00 0.284 203.06 2115.00 0.283 204.04 2116.00 0.283 205.02 2117.00 0.282 206.01 2118.00 0.281 207.00 2119.00 0.280 208.00 2120.00 0.279 209.01 2121.00 0.278 210.02 2122.00 0.278 211.04 2123.00 0.277 212.07 2124.00 0.276 213.10 2125.00 0.275 214.14 2126.00 0.274 215.19 2127.00 0.273 216.24 2128.00 0.272 217.31 2129.00 0.271 218.38 2130.00 0.270 219.46 2131.00 0.268 220.55 2132.00 0.267 221.64 2133.00 0.266 222.75 2134.00 0.265 223.86 2135.00 0.264 224.99 2136.00 0.263 226.12 2137.00 0.262 227.26 2138.00 0.261 228.42 2139.00 0.260 229.58 2140.00 0.259 230.75 2141.00 0.258 231.93 2142.00 0.256 233.13 2143.00 0.255 234.33 2144.00 0.254 235.54 2145.00 0.253 236.76 2146.00 0.252 238.00 2147.00 0.251 239.24 2148.00 0.250 240.49 2149.00 0.249 241.75 2150.00 0.248 243.03 2151.00 0.247 244.31 2152.00 0.246 245.60 2153.00 0.246 246.90 2154.00 0.245 248.21 2155.00 0.244 249.53 2156.00 0.243 250.86 2157.00 0.242 252.19 2158.00 0.242 253.54 2159.00 0.241 254.89 2160.00 0.240 256.25 2161.00 0.240 257.62 2162.00 0.239 258.99 2163.00 0.239 260.37 2164.00 0.238 261.75 2165.00 0.238 263.14 2166.00 0.237 264.54 2167.00 0.237 265.94 2168.00 0.237 267.34 2169.00 0.237 268.75 2170.00 0.236 270.16 2171.00 0.236 271.57 2172.00 0.236 272.98 2173.00 0.236 274.39 2174.00 0.236 275.81 2175.00 0.236 277.22 2176.00 0.236 278.63 2177.00 0.236 280.04 2178.00 0.237 281.45 2179.00 0.237 282.86 2180.00 0.237 284.26 2181.00 0.237 285.66
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:21:27 |