| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:46:57 |
| WDS: | HU177 | WDS ID/Discoverer |
| P: | 220.410 | Orbital period (years) |
| a: | 0.293 | Semi-major axis (arcseconds) |
| i: | 156.3 | Inclination (degrees) |
| Ω: | 179.5 | Longitude of ascending node (degrees) |
| T: | 1987.210 | Epoch of periastron passage (year) |
| e: | 0.541 | Eccentricity |
| ω: | 252.6 | Longitude of periastron (degrees) |
| Start-Year: | 1915.0 | Year |
| End-Year: | 2135.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 173032.15-144621.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17305-1446 | WDS designation |
| Discoverer Code: | HU177 | Discover designation and components |
| ADS number: | 10595 | Aitken Double Star catalog |
| HD number: | 158561 | HD catalog number |
| Hipparcos number: | 85679 | Hipparcos catalog number |
| V1: | 8.5 | Magnitude of the primary |
| V2: | 9.6 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 4 | 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 0.298 163.3 ------------------------- 1915.0 0.377 83.0 1916.0 0.375 82.2 1917.0 0.374 81.4 1918.0 0.372 80.7 1919.0 0.370 79.9 1920.0 0.367 79.1 1921.0 0.365 78.3 1922.0 0.363 77.5 1923.0 0.361 76.6 1924.0 0.359 75.8 1925.0 0.356 75.0 1926.0 0.354 74.1 1927.0 0.352 73.2 1928.0 0.349 72.4 1929.0 0.347 71.5 1930.0 0.344 70.6 1931.0 0.342 69.7 1932.0 0.339 68.7 1933.0 0.336 67.8 1934.0 0.334 66.8 1935.0 0.331 65.8 1936.0 0.328 64.8 1937.0 0.325 63.8 1938.0 0.322 62.8 1939.0 0.319 61.8 1940.0 0.316 60.7 1941.0 0.313 59.6 1942.0 0.310 58.5 1943.0 0.307 57.3 1944.0 0.303 56.2 1945.0 0.300 55.0 1946.0 0.297 53.8 1947.0 0.293 52.5 1948.0 0.290 51.3 1949.0 0.286 50.0 1950.0 0.283 48.6 1951.0 0.279 47.3 1952.0 0.275 45.9 1953.0 0.271 44.4 1954.0 0.268 42.9 1955.0 0.264 41.4 1956.0 0.260 39.8 1957.0 0.256 38.2 1958.0 0.251 36.5 1959.0 0.247 34.8 1960.0 0.243 33.0 1961.0 0.239 31.1 1962.0 0.234 29.2 1963.0 0.230 27.2 1964.0 0.225 25.1 1965.0 0.221 22.9 1966.0 0.216 20.7 1967.0 0.211 18.3 1968.0 0.206 15.8 1969.0 0.201 13.2 1970.0 0.196 10.5 1971.0 0.191 7.6 1972.0 0.186 4.6 1973.0 0.181 1.4 1974.0 0.176 358.0 1975.0 0.171 354.4 1976.0 0.166 350.6 1977.0 0.161 346.6 1978.0 0.156 342.3 1979.0 0.151 337.7 1980.0 0.146 332.8 1981.0 0.142 327.6 1982.0 0.138 322.0 1983.0 0.134 316.2 1984.0 0.130 310.0 1985.0 0.128 303.5 1986.0 0.126 296.8 1987.0 0.124 289.9 1988.0 0.124 282.8 1989.0 0.124 275.8 1990.0 0.125 268.9 1991.0 0.127 262.1 1992.0 0.130 255.5 1993.0 0.133 249.3 1994.0 0.137 243.4 1995.0 0.142 237.8 1996.0 0.147 232.6 1997.0 0.152 227.8 1998.0 0.157 223.3 1999.0 0.163 219.0 2000.0 0.169 215.1 2001.0 0.175 211.4 2002.0 0.180 208.0 2003.0 0.186 204.8 2004.0 0.192 201.8 2005.0 0.198 199.0 2006.0 0.204 196.3 2007.0 0.210 193.8 2008.0 0.215 191.4 2009.0 0.221 189.1 2010.0 0.227 186.9 2011.0 0.232 184.9 2012.0 0.237 182.9 2013.0 0.243 181.1 2014.0 0.248 179.3 2015.0 0.253 177.5 2016.0 0.258 175.9 2017.0 0.263 174.3 2018.0 0.268 172.8 2019.0 0.272 171.3 2020.0 0.277 169.9 2021.0 0.281 168.5 2022.0 0.286 167.1 2023.0 0.290 165.8 2024.0 0.294 164.6 2025.0 0.298 163.3 2026.0 0.302 162.1 2027.0 0.306 161.0 2028.0 0.310 159.8 2029.0 0.314 158.7 2030.0 0.317 157.6 2031.0 0.321 156.6 2032.0 0.324 155.5 2033.0 0.328 154.5 2034.0 0.331 153.5 2035.0 0.334 152.5 2036.0 0.338 151.6 2037.0 0.341 150.6 2038.0 0.344 149.7 2039.0 0.347 148.8 2040.0 0.349 147.9 2041.0 0.352 147.0 2042.0 0.355 146.2 2043.0 0.358 145.3 2044.0 0.360 144.5 2045.0 0.363 143.7 2046.0 0.365 142.9 2047.0 0.368 142.0 2048.0 0.370 141.3 2049.0 0.372 140.5 2050.0 0.374 139.7 2051.0 0.377 138.9 2052.0 0.379 138.2 2053.0 0.381 137.4 2054.0 0.383 136.7 2055.0 0.384 135.9 2056.0 0.386 135.2 2057.0 0.388 134.5 2058.0 0.390 133.8 2059.0 0.391 133.1 2060.0 0.393 132.4 2061.0 0.395 131.7 2062.0 0.396 131.0 2063.0 0.398 130.3 2064.0 0.399 129.6 2065.0 0.400 128.9 2066.0 0.402 128.3 2067.0 0.403 127.6 2068.0 0.404 126.9 2069.0 0.405 126.3 2070.0 0.406 125.6 2071.0 0.407 125.0 2072.0 0.408 124.3 2073.0 0.409 123.7 2074.0 0.410 123.0 2075.0 0.411 122.4 2076.0 0.412 121.8 2077.0 0.412 121.1 2078.0 0.413 120.5 2079.0 0.414 119.9 2080.0 0.414 119.2 2081.0 0.415 118.6 2082.0 0.415 118.0 2083.0 0.416 117.3 2084.0 0.416 116.7 2085.0 0.416 116.1 2086.0 0.417 115.5 2087.0 0.417 114.8 2088.0 0.417 114.2 2089.0 0.417 113.6 2090.0 0.417 113.0 2091.0 0.418 112.4 2092.0 0.418 111.7 2093.0 0.418 111.1 2094.0 0.418 110.5 2095.0 0.417 109.9 2096.0 0.417 109.3 2097.0 0.417 108.7 2098.0 0.417 108.0 2099.0 0.417 107.4 2100.0 0.416 106.8 2101.0 0.416 106.2 2102.0 0.415 105.5 2103.0 0.415 104.9 2104.0 0.415 104.3 2105.0 0.414 103.7 2106.0 0.413 103.0 2107.0 0.413 102.4 2108.0 0.412 101.8 2109.0 0.411 101.1 2110.0 0.411 100.5 2111.0 0.410 99.8 2112.0 0.409 99.2 2113.0 0.408 98.5 2114.0 0.407 97.9 2115.0 0.406 97.2 2116.0 0.405 96.6 2117.0 0.404 95.9 2118.0 0.403 95.3 2119.0 0.402 94.6 2120.0 0.401 93.9 2121.0 0.400 93.3 2122.0 0.398 92.6 2123.0 0.397 91.9 2124.0 0.396 91.2 2125.0 0.394 90.5 2126.0 0.393 89.8 2127.0 0.391 89.1 2128.0 0.390 88.4 2129.0 0.388 87.7 2130.0 0.387 87.0 2131.0 0.385 86.3 2132.0 0.383 85.5 2133.0 0.382 84.8 2134.0 0.380 84.0