| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:27:26 |
| WDS: | A2171 | WDS ID/Discoverer |
| P: | 131.300 | Orbital period (years) |
| a: | 0.295 | Semi-major axis (arcseconds) |
| i: | 104.4 | Inclination (degrees) |
| Ω: | 111.5 | Longitude of ascending node (degrees) |
| T: | 2021.400 | Epoch of periastron passage (year) |
| e: | 0.065 | Eccentricity |
| ω: | 97.7 | Longitude of periastron (degrees) |
| Start-Year: | 1960.0 | Year |
| End-Year: | 2090.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 145523.54+000950.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 14554+0010 | WDS designation |
| Discoverer Code: | A2171 | Discover designation and components |
| ADS number: | 9436 | Aitken Double Star catalog |
| HD number: | 131749 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.6 | Magnitude of the primary |
| V2: | 9.7 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2022 | Date of last observation |
| Orbit grade: | 3 | 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 0.111 327.4 ------------------------- 1960.0 0.122 149.0 1961.0 0.131 145.3 1962.0 0.141 142.1 1963.0 0.151 139.3 1964.0 0.161 136.9 1965.0 0.171 134.7 1966.0 0.180 132.8 1967.0 0.190 131.1 1968.0 0.199 129.5 1969.0 0.208 128.1 1970.0 0.217 126.8 1971.0 0.225 125.5 1972.0 0.233 124.4 1973.0 0.241 123.4 1974.0 0.248 122.4 1975.0 0.255 121.4 1976.0 0.261 120.5 1977.0 0.267 119.7 1978.0 0.273 118.9 1979.0 0.278 118.1 1980.0 0.282 117.4 1981.0 0.286 116.6 1982.0 0.289 115.9 1983.0 0.292 115.2 1984.0 0.294 114.5 1985.0 0.296 113.8 1986.0 0.297 113.2 1987.0 0.297 112.5 1988.0 0.297 111.8 1989.0 0.296 111.1 1990.0 0.294 110.5 1991.0 0.292 109.8 1992.0 0.289 109.1 1993.0 0.286 108.4 1994.0 0.282 107.6 1995.0 0.277 106.9 1996.0 0.272 106.1 1997.0 0.266 105.3 1998.0 0.259 104.4 1999.0 0.252 103.5 2000.0 0.244 102.5 2001.0 0.236 101.5 2002.0 0.228 100.4 2003.0 0.218 99.2 2004.0 0.209 97.9 2005.0 0.199 96.5 2006.0 0.188 94.9 2007.0 0.177 93.1 2008.0 0.166 91.1 2009.0 0.155 88.8 2010.0 0.144 86.2 2011.0 0.132 83.0 2012.0 0.121 79.3 2013.0 0.110 74.8 2014.0 0.099 69.4 2015.0 0.089 62.7 2016.0 0.081 54.5 2017.0 0.074 44.6 2018.0 0.070 33.1 2019.0 0.069 20.7 2020.0 0.070 8.4 2021.0 0.075 357.1 2022.0 0.082 347.3 2023.0 0.090 339.3 2024.0 0.100 332.7 2025.0 0.111 327.4 2026.0 0.122 323.0 2027.0 0.133 319.4 2028.0 0.145 316.3 2029.0 0.156 313.7 2030.0 0.167 311.4 2031.0 0.178 309.4 2032.0 0.189 307.7 2033.0 0.199 306.1 2034.0 0.209 304.7 2035.0 0.219 303.4 2036.0 0.228 302.2 2037.0 0.236 301.1 2038.0 0.244 300.1 2039.0 0.252 299.1 2040.0 0.258 298.2 2041.0 0.265 297.3 2042.0 0.270 296.5 2043.0 0.275 295.7 2044.0 0.280 294.9 2045.0 0.283 294.2 2046.0 0.286 293.4 2047.0 0.289 292.7 2048.0 0.290 292.0 2049.0 0.291 291.3 2050.0 0.292 290.6 2051.0 0.292 289.9 2052.0 0.291 289.2 2053.0 0.289 288.5 2054.0 0.287 287.8 2055.0 0.284 287.1 2056.0 0.281 286.4 2057.0 0.277 285.6 2058.0 0.273 284.8 2059.0 0.268 284.0 2060.0 0.262 283.2 2061.0 0.256 282.3 2062.0 0.250 281.4 2063.0 0.243 280.4 2064.0 0.236 279.3 2065.0 0.228 278.2 2066.0 0.220 277.1 2067.0 0.211 275.8 2068.0 0.202 274.4 2069.0 0.193 272.9 2070.0 0.184 271.2 2071.0 0.174 269.4 2072.0 0.164 267.3 2073.0 0.155 265.0 2074.0 0.145 262.3 2075.0 0.135 259.3 2076.0 0.126 255.8 2077.0 0.116 251.7 2078.0 0.108 247.0 2079.0 0.099 241.5 2080.0 0.092 235.0 2081.0 0.086 227.5 2082.0 0.082 219.0 2083.0 0.079 209.8 2084.0 0.078 200.1 2085.0 0.079 190.6 2086.0 0.083 181.5 2087.0 0.088 173.4 2088.0 0.094 166.2 2089.0 0.102 160.0