| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:31:27 |
| WDS: | HU1163 | WDS ID/Discoverer |
| P: | 217.000 | Orbital period (years) |
| a: | 0.285 | Semi-major axis (arcseconds) |
| i: | 23.2 | Inclination (degrees) |
| Ω: | 123.0 | Longitude of ascending node (degrees) |
| T: | 1989.210 | Epoch of periastron passage (year) |
| e: | 0.603 | Eccentricity |
| ω: | 305.0 | Longitude of periastron (degrees) |
| Start-Year: | 1917.0 | Year |
| End-Year: | 2133.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 153044.95+380948.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 15307+3810 | WDS designation |
| Discoverer Code: | HU1163 | Discover designation and components |
| ADS number: | 9682 | Aitken Double Star catalog |
| HD number: | 138439 | HD catalog number |
| Hipparcos number: | 75949 | Hipparcos catalog number |
| V1: | 9.23 | Magnitude of the primary |
| V2: | 9.73 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1997 | Date of last observation |
| Orbit grade: | 3 | 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 0.274 196.8 ------------------------- 1917.0 0.408 270.0 1918.0 0.407 270.6 1919.0 0.405 271.2 1920.0 0.403 271.8 1921.0 0.401 272.4 1922.0 0.399 273.1 1923.0 0.397 273.7 1924.0 0.395 274.3 1925.0 0.392 275.0 1926.0 0.390 275.6 1927.0 0.388 276.3 1928.0 0.385 276.9 1929.0 0.383 277.6 1930.0 0.380 278.3 1931.0 0.378 279.0 1932.0 0.375 279.7 1933.0 0.372 280.4 1934.0 0.369 281.1 1935.0 0.366 281.8 1936.0 0.363 282.6 1937.0 0.360 283.3 1938.0 0.357 284.1 1939.0 0.354 284.9 1940.0 0.350 285.7 1941.0 0.347 286.5 1942.0 0.343 287.3 1943.0 0.340 288.1 1944.0 0.336 289.0 1945.0 0.332 289.9 1946.0 0.328 290.8 1947.0 0.324 291.7 1948.0 0.320 292.7 1949.0 0.316 293.7 1950.0 0.312 294.7 1951.0 0.307 295.7 1952.0 0.303 296.8 1953.0 0.298 297.8 1954.0 0.294 299.0 1955.0 0.289 300.1 1956.0 0.284 301.3 1957.0 0.279 302.6 1958.0 0.274 303.9 1959.0 0.269 305.2 1960.0 0.263 306.6 1961.0 0.258 308.1 1962.0 0.252 309.6 1963.0 0.246 311.2 1964.0 0.241 312.9 1965.0 0.235 314.6 1966.0 0.229 316.5 1967.0 0.222 318.4 1968.0 0.216 320.5 1969.0 0.210 322.6 1970.0 0.203 325.0 1971.0 0.196 327.4 1972.0 0.190 330.1 1973.0 0.183 332.9 1974.0 0.176 336.0 1975.0 0.169 339.3 1976.0 0.162 342.9 1977.0 0.156 346.8 1978.0 0.149 351.1 1979.0 0.142 355.7 1980.0 0.136 0.9 1981.0 0.130 6.5 1982.0 0.124 12.6 1983.0 0.119 19.3 1984.0 0.115 26.5 1985.0 0.111 34.3 1986.0 0.108 42.5 1987.0 0.107 51.1 1988.0 0.106 59.8 1989.0 0.107 68.5 1990.0 0.108 77.0 1991.0 0.111 85.3 1992.0 0.114 93.1 1993.0 0.118 100.4 1994.0 0.122 107.3 1995.0 0.127 113.7 1996.0 0.132 119.6 1997.0 0.137 125.1 1998.0 0.142 130.2 1999.0 0.147 134.9 2000.0 0.153 139.3 2001.0 0.158 143.4 2002.0 0.163 147.2 2003.0 0.169 150.8 2004.0 0.174 154.2 2005.0 0.179 157.3 2006.0 0.185 160.3 2007.0 0.190 163.1 2008.0 0.195 165.8 2009.0 0.200 168.3 2010.0 0.205 170.8 2011.0 0.210 173.0 2012.0 0.215 175.2 2013.0 0.220 177.3 2014.0 0.225 179.3 2015.0 0.230 181.2 2016.0 0.234 183.1 2017.0 0.239 184.8 2018.0 0.244 186.5 2019.0 0.248 188.1 2020.0 0.253 189.7 2021.0 0.257 191.2 2022.0 0.261 192.7 2023.0 0.266 194.1 2024.0 0.270 195.5 2025.0 0.274 196.8 2026.0 0.278 198.1 2027.0 0.282 199.4 2028.0 0.286 200.6 2029.0 0.290 201.8 2030.0 0.294 203.0 2031.0 0.298 204.1 2032.0 0.302 205.2 2033.0 0.305 206.3 2034.0 0.309 207.3 2035.0 0.313 208.3 2036.0 0.316 209.3 2037.0 0.320 210.3 2038.0 0.323 211.3 2039.0 0.327 212.2 2040.0 0.330 213.1 2041.0 0.333 214.0 2042.0 0.336 214.9 2043.0 0.339 215.8 2044.0 0.343 216.6 2045.0 0.346 217.4 2046.0 0.349 218.3 2047.0 0.351 219.1 2048.0 0.354 219.9 2049.0 0.357 220.6 2050.0 0.360 221.4 2051.0 0.363 222.2 2052.0 0.365 222.9 2053.0 0.368 223.7 2054.0 0.370 224.4 2055.0 0.373 225.1 2056.0 0.375 225.8 2057.0 0.378 226.5 2058.0 0.380 227.2 2059.0 0.382 227.9 2060.0 0.385 228.5 2061.0 0.387 229.2 2062.0 0.389 229.9 2063.0 0.391 230.5 2064.0 0.393 231.1 2065.0 0.395 231.8 2066.0 0.397 232.4 2067.0 0.399 233.0 2068.0 0.401 233.7 2069.0 0.403 234.3 2070.0 0.404 234.9 2071.0 0.406 235.5 2072.0 0.408 236.1 2073.0 0.409 236.7 2074.0 0.411 237.3 2075.0 0.412 237.8 2076.0 0.414 238.4 2077.0 0.415 239.0 2078.0 0.416 239.6 2079.0 0.418 240.1 2080.0 0.419 240.7 2081.0 0.420 241.3 2082.0 0.421 241.8 2083.0 0.422 242.4 2084.0 0.423 242.9 2085.0 0.424 243.5 2086.0 0.425 244.0 2087.0 0.426 244.6 2088.0 0.427 245.1 2089.0 0.428 245.7 2090.0 0.428 246.2 2091.0 0.429 246.7 2092.0 0.430 247.3 2093.0 0.430 247.8 2094.0 0.431 248.3 2095.0 0.431 248.9 2096.0 0.432 249.4 2097.0 0.432 249.9 2098.0 0.433 250.5 2099.0 0.433 251.0 2100.0 0.433 251.5 2101.0 0.433 252.0 2102.0 0.433 252.6 2103.0 0.433 253.1 2104.0 0.433 253.6 2105.0 0.433 254.1 2106.0 0.433 254.7 2107.0 0.433 255.2 2108.0 0.433 255.7 2109.0 0.433 256.2 2110.0 0.432 256.8 2111.0 0.432 257.3 2112.0 0.432 257.8 2113.0 0.431 258.4 2114.0 0.431 258.9 2115.0 0.430 259.4 2116.0 0.429 260.0 2117.0 0.429 260.5 2118.0 0.428 261.0 2119.0 0.427 261.6 2120.0 0.426 262.1 2121.0 0.425 262.7 2122.0 0.425 263.2 2123.0 0.423 263.8 2124.0 0.422 264.3 2125.0 0.421 264.9 2126.0 0.420 265.4 2127.0 0.419 266.0 2128.0 0.417 266.6 2129.0 0.416 267.1 2130.0 0.415 267.7 2131.0 0.413 268.3 2132.0 0.412 268.9