| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:31:43 |
| WDS: | HU577 | WDS ID/Discoverer |
| P: | 108.200 | Orbital period (years) |
| a: | 0.294 | Semi-major axis (arcseconds) |
| i: | 61.9 | Inclination (degrees) |
| Ω: | 35.6 | Longitude of ascending node (degrees) |
| T: | 1944.450 | Epoch of periastron passage (year) |
| e: | 0.392 | Eccentricity |
| ω: | 127.1 | Longitude of periastron (degrees) |
| Start-Year: | 1971.0 | Year |
| End-Year: | 2079.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 153248.18+194436.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 15328+1945 | WDS designation |
| Discoverer Code: | HU577 | Discover designation and components |
| ADS number: | 9692 | Aitken Double Star catalog |
| HD number: | 138641 | HD catalog number |
| Hipparcos number: | 76118 | Hipparcos catalog number |
| V1: | 8.91 | Magnitude of the primary |
| V2: | 8.94 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2020 | Date of last observation |
| Orbit grade: | 2 | 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 0.337 33.0 ------------------------- 1971.0 0.170 279.5 1972.0 0.168 283.9 1973.0 0.168 288.3 1974.0 0.167 292.8 1975.0 0.168 297.2 1976.0 0.169 301.6 1977.0 0.171 305.9 1978.0 0.173 310.2 1979.0 0.176 314.3 1980.0 0.180 318.2 1981.0 0.184 322.0 1982.0 0.189 325.6 1983.0 0.194 329.0 1984.0 0.199 332.2 1985.0 0.205 335.3 1986.0 0.211 338.2 1987.0 0.217 340.9 1988.0 0.223 343.5 1989.0 0.229 345.9 1990.0 0.236 348.2 1991.0 0.243 350.4 1992.0 0.249 352.5 1993.0 0.256 354.4 1994.0 0.262 356.3 1995.0 0.269 358.0 1996.0 0.275 359.7 1997.0 0.281 1.3 1998.0 0.288 2.9 1999.0 0.293 4.3 2000.0 0.299 5.8 2001.0 0.305 7.1 2002.0 0.310 8.4 2003.0 0.315 9.7 2004.0 0.320 11.0 2005.0 0.325 12.2 2006.0 0.329 13.3 2007.0 0.333 14.5 2008.0 0.337 15.6 2009.0 0.340 16.7 2010.0 0.343 17.7 2011.0 0.346 18.8 2012.0 0.348 19.8 2013.0 0.350 20.8 2014.0 0.352 21.8 2015.0 0.353 22.8 2016.0 0.354 23.8 2017.0 0.354 24.8 2018.0 0.354 25.8 2019.0 0.353 26.8 2020.0 0.352 27.8 2021.0 0.350 28.8 2022.0 0.348 29.9 2023.0 0.345 30.9 2024.0 0.341 32.0 2025.0 0.337 33.0 2026.0 0.333 34.2 2027.0 0.327 35.3 2028.0 0.321 36.5 2029.0 0.315 37.7 2030.0 0.307 39.0 2031.0 0.299 40.4 2032.0 0.290 41.8 2033.0 0.281 43.3 2034.0 0.271 45.0 2035.0 0.259 46.7 2036.0 0.247 48.7 2037.0 0.235 50.8 2038.0 0.221 53.2 2039.0 0.207 55.9 2040.0 0.192 59.1 2041.0 0.177 62.7 2042.0 0.161 67.1 2043.0 0.145 72.4 2044.0 0.130 79.0 2045.0 0.116 87.3 2046.0 0.103 97.8 2047.0 0.094 110.8 2048.0 0.089 125.8 2049.0 0.090 141.5 2050.0 0.096 156.0 2051.0 0.106 168.3 2052.0 0.118 178.3 2053.0 0.132 186.3 2054.0 0.145 192.8 2055.0 0.158 198.2 2056.0 0.170 202.8 2057.0 0.181 206.8 2058.0 0.190 210.5 2059.0 0.198 213.8 2060.0 0.204 216.9 2061.0 0.208 219.8 2062.0 0.211 222.6 2063.0 0.213 225.4 2064.0 0.213 228.2 2065.0 0.213 230.9 2066.0 0.212 233.7 2067.0 0.210 236.5 2068.0 0.207 239.3 2069.0 0.204 242.3 2070.0 0.201 245.3 2071.0 0.197 248.5 2072.0 0.193 251.8 2073.0 0.189 255.2 2074.0 0.185 258.7 2075.0 0.182 262.5 2076.0 0.178 266.3 2077.0 0.175 270.3 2078.0 0.172 274.4