| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:33:04 |
| WDS: | B557AA,AB | WDS ID/Discoverer |
| P: | 106.210 | Orbital period (years) |
| a: | 0.359 | Semi-major axis (arcseconds) |
| i: | 112.2 | Inclination (degrees) |
| Ω: | 189.1 | Longitude of ascending node (degrees) |
| T: | 2020.010 | Epoch of periastron passage (year) |
| e: | 0.898 | Eccentricity |
| ω: | 73.2 | Longitude of periastron (degrees) |
| Start-Year: | 1972.0 | Year |
| End-Year: | 2078.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 222157.60-343113.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22220-3431 | WDS designation |
| Discoverer Code: | B557AA,AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 212025 | HD catalog number |
| Hipparcos number: | 110419 | Hipparcos catalog number |
| V1: | 8.31 | Magnitude of the primary |
| V2: | 8.26 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2021 | 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 0.184 356.1 ------------------------- 1972.0 0.301 313.8 1973.0 0.298 313.0 1974.0 0.295 312.2 1975.0 0.292 311.4 1976.0 0.288 310.5 1977.0 0.285 309.6 1978.0 0.281 308.7 1979.0 0.278 307.8 1980.0 0.274 306.8 1981.0 0.270 305.8 1982.0 0.266 304.8 1983.0 0.262 303.8 1984.0 0.258 302.7 1985.0 0.254 301.6 1986.0 0.250 300.5 1987.0 0.246 299.3 1988.0 0.241 298.1 1989.0 0.237 296.8 1990.0 0.233 295.5 1991.0 0.228 294.1 1992.0 0.224 292.7 1993.0 0.219 291.2 1994.0 0.215 289.7 1995.0 0.210 288.0 1996.0 0.205 286.4 1997.0 0.201 284.6 1998.0 0.196 282.7 1999.0 0.191 280.8 2000.0 0.186 278.8 2001.0 0.182 276.6 2002.0 0.177 274.4 2003.0 0.172 272.0 2004.0 0.167 269.5 2005.0 0.163 266.8 2006.0 0.158 264.0 2007.0 0.153 261.0 2008.0 0.149 257.8 2009.0 0.144 254.4 2010.0 0.140 250.8 2011.0 0.135 246.9 2012.0 0.130 242.8 2013.0 0.125 238.4 2014.0 0.120 233.6 2015.0 0.115 228.3 2016.0 0.108 222.4 2017.0 0.100 215.7 2018.0 0.088 207.5 2019.0 0.067 195.4 2020.0 0.017 140.2 2021.0 0.065 16.1 2022.0 0.109 6.3 2023.0 0.140 1.6 2024.0 0.164 358.5 2025.0 0.184 356.1 2026.0 0.201 354.1 2027.0 0.216 352.5 2028.0 0.229 351.0 2029.0 0.241 349.7 2030.0 0.251 348.5 2031.0 0.260 347.4 2032.0 0.269 346.3 2033.0 0.277 345.4 2034.0 0.284 344.4 2035.0 0.290 343.6 2036.0 0.296 342.7 2037.0 0.301 341.9 2038.0 0.306 341.1 2039.0 0.311 340.4 2040.0 0.315 339.6 2041.0 0.318 338.9 2042.0 0.322 338.2 2043.0 0.325 337.5 2044.0 0.327 336.8 2045.0 0.330 336.1 2046.0 0.332 335.5 2047.0 0.334 334.8 2048.0 0.335 334.1 2049.0 0.336 333.5 2050.0 0.338 332.9 2051.0 0.338 332.2 2052.0 0.339 331.6 2053.0 0.340 331.0 2054.0 0.340 330.3 2055.0 0.340 329.7 2056.0 0.340 329.1 2057.0 0.340 328.5 2058.0 0.339 327.8 2059.0 0.339 327.2 2060.0 0.338 326.6 2061.0 0.337 325.9 2062.0 0.336 325.3 2063.0 0.335 324.6 2064.0 0.334 324.0 2065.0 0.332 323.3 2066.0 0.330 322.7 2067.0 0.329 322.0 2068.0 0.327 321.3 2069.0 0.325 320.6 2070.0 0.323 319.9 2071.0 0.321 319.2 2072.0 0.318 318.5 2073.0 0.316 317.8 2074.0 0.313 317.1 2075.0 0.311 316.3 2076.0 0.308 315.6 2077.0 0.305 314.8