| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:56:38 |
| WDS: | A2146 | WDS ID/Discoverer |
| P: | 97.000 | Orbital period (years) |
| a: | 0.224 | Semi-major axis (arcseconds) |
| i: | 33.0 | Inclination (degrees) |
| Ω: | 33.1 | Longitude of ascending node (degrees) |
| T: | 2002.000 | Epoch of periastron passage (year) |
| e: | 0.255 | Eccentricity |
| ω: | 110.0 | Longitude of periastron (degrees) |
| Start-Year: | 1977.0 | Year |
| End-Year: | 2073.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 101205.05+211754.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 10121+2118 | WDS designation |
| Discoverer Code: | A2146 | Discover designation and components |
| ADS number: | 7677 | Aitken Double Star catalog |
| HD number: | 88417 | HD catalog number |
| Hipparcos number: | 49970 | Hipparcos catalog number |
| V1: | 9.74 | Magnitude of the primary |
| V2: | 9.59 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | Date of last observation | |
| Orbit grade: | 4 | 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 0.216 252.1 ------------------------- 1977.0 0.239 24.3 1978.0 0.237 27.0 1979.0 0.234 29.7 1980.0 0.230 32.5 1981.0 0.226 35.4 1982.0 0.222 38.4 1983.0 0.218 41.5 1984.0 0.213 44.8 1985.0 0.209 48.2 1986.0 0.203 51.7 1987.0 0.198 55.5 1988.0 0.192 59.5 1989.0 0.186 63.7 1990.0 0.181 68.2 1991.0 0.175 73.0 1992.0 0.169 78.1 1993.0 0.163 83.6 1994.0 0.158 89.4 1995.0 0.153 95.7 1996.0 0.149 102.3 1997.0 0.146 109.3 1998.0 0.143 116.5 1999.0 0.142 124.0 2000.0 0.141 131.6 2001.0 0.142 139.1 2002.0 0.143 146.6 2003.0 0.146 153.8 2004.0 0.149 160.7 2005.0 0.153 167.4 2006.0 0.157 173.6 2007.0 0.162 179.5 2008.0 0.167 185.1 2009.0 0.171 190.4 2010.0 0.176 195.4 2011.0 0.181 200.2 2012.0 0.185 204.7 2013.0 0.189 209.0 2014.0 0.193 213.2 2015.0 0.196 217.2 2016.0 0.199 221.0 2017.0 0.202 224.8 2018.0 0.205 228.4 2019.0 0.207 232.0 2020.0 0.209 235.5 2021.0 0.211 238.9 2022.0 0.212 242.3 2023.0 0.214 245.6 2024.0 0.215 248.9 2025.0 0.216 252.1 2026.0 0.217 255.3 2027.0 0.218 258.5 2028.0 0.219 261.7 2029.0 0.220 264.8 2030.0 0.221 267.9 2031.0 0.221 271.0 2032.0 0.222 274.1 2033.0 0.223 277.1 2034.0 0.224 280.1 2035.0 0.225 283.2 2036.0 0.225 286.1 2037.0 0.226 289.1 2038.0 0.227 292.0 2039.0 0.228 295.0 2040.0 0.229 297.8 2041.0 0.230 300.7 2042.0 0.231 303.5 2043.0 0.232 306.4 2044.0 0.233 309.1 2045.0 0.235 311.9 2046.0 0.236 314.6 2047.0 0.237 317.3 2048.0 0.238 320.0 2049.0 0.240 322.6 2050.0 0.241 325.3 2051.0 0.242 327.9 2052.0 0.243 330.4 2053.0 0.245 333.0 2054.0 0.246 335.5 2055.0 0.247 338.0 2056.0 0.248 340.4 2057.0 0.249 342.9 2058.0 0.249 345.3 2059.0 0.250 347.7 2060.0 0.251 350.1 2061.0 0.251 352.5 2062.0 0.252 354.9 2063.0 0.252 357.3 2064.0 0.252 359.7 2065.0 0.252 2.1 2066.0 0.251 4.5 2067.0 0.251 6.9 2068.0 0.250 9.3 2069.0 0.249 11.7 2070.0 0.247 14.2 2071.0 0.246 16.6 2072.0 0.244 19.2