| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:20:02 |
| WDS: | BU270AB | WDS ID/Discoverer |
| P: | 106.780 | Orbital period (years) |
| a: | 0.407 | Semi-major axis (arcseconds) |
| i: | 102.7 | Inclination (degrees) |
| Ω: | 166.7 | Longitude of ascending node (degrees) |
| T: | 1931.260 | Epoch of periastron passage (year) |
| e: | 0.646 | Eccentricity |
| ω: | 331.8 | Longitude of periastron (degrees) |
| Start-Year: | 1972.0 | Year |
| End-Year: | 2078.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 211327.24+071304.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21135+0713 | WDS designation |
| Discoverer Code: | BU270AB | Discover designation and components |
| ADS number: | 14759 | Aitken Double Star catalog |
| HD number: | 202073 | HD catalog number |
| Hipparcos number: | 104767 | Hipparcos catalog number |
| V1: | 7.42 | Magnitude of the primary |
| V2: | 9.40 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2008 | 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 0.319 339.7 ------------------------- 1972.0 0.497 357.4 1973.0 0.507 357.0 1974.0 0.517 356.6 1975.0 0.526 356.3 1976.0 0.535 355.9 1977.0 0.544 355.6 1978.0 0.552 355.3 1979.0 0.559 355.0 1980.0 0.567 354.7 1981.0 0.573 354.4 1982.0 0.580 354.1 1983.0 0.586 353.9 1984.0 0.591 353.6 1985.0 0.596 353.3 1986.0 0.601 353.1 1987.0 0.605 352.8 1988.0 0.609 352.6 1989.0 0.612 352.3 1990.0 0.614 352.1 1991.0 0.617 351.8 1992.0 0.619 351.6 1993.0 0.620 351.3 1994.0 0.621 351.1 1995.0 0.621 350.8 1996.0 0.621 350.6 1997.0 0.620 350.3 1998.0 0.619 350.1 1999.0 0.617 349.9 2000.0 0.614 349.6 2001.0 0.611 349.4 2002.0 0.608 349.1 2003.0 0.604 348.9 2004.0 0.599 348.6 2005.0 0.594 348.3 2006.0 0.588 348.1 2007.0 0.581 347.8 2008.0 0.574 347.5 2009.0 0.566 347.2 2010.0 0.557 346.9 2011.0 0.548 346.6 2012.0 0.538 346.3 2013.0 0.527 346.0 2014.0 0.515 345.6 2015.0 0.502 345.3 2016.0 0.489 344.9 2017.0 0.474 344.5 2018.0 0.459 344.0 2019.0 0.443 343.6 2020.0 0.425 343.1 2021.0 0.406 342.5 2022.0 0.387 341.9 2023.0 0.366 341.3 2024.0 0.343 340.5 2025.0 0.319 339.7 2026.0 0.294 338.7 2027.0 0.267 337.5 2028.0 0.239 336.0 2029.0 0.209 334.2 2030.0 0.177 331.6 2031.0 0.144 328.0 2032.0 0.109 322.0 2033.0 0.075 310.5 2034.0 0.046 282.6 2035.0 0.043 228.1 2036.0 0.068 194.7 2037.0 0.100 181.0 2038.0 0.127 173.7 2039.0 0.146 168.6 2040.0 0.155 164.5 2041.0 0.156 160.7 2042.0 0.150 156.7 2043.0 0.140 152.2 2044.0 0.127 147.0 2045.0 0.113 140.4 2046.0 0.099 132.0 2047.0 0.087 121.1 2048.0 0.078 107.1 2049.0 0.074 90.6 2050.0 0.076 73.7 2051.0 0.083 58.7 2052.0 0.095 46.9 2053.0 0.110 37.9 2054.0 0.126 31.1 2055.0 0.143 25.9 2056.0 0.161 21.8 2057.0 0.178 18.5 2058.0 0.196 15.9 2059.0 0.214 13.6 2060.0 0.232 11.7 2061.0 0.249 10.1 2062.0 0.266 8.7 2063.0 0.283 7.4 2064.0 0.299 6.3 2065.0 0.315 5.3 2066.0 0.331 4.4 2067.0 0.346 3.6 2068.0 0.361 2.9 2069.0 0.376 2.2 2070.0 0.390 1.6 2071.0 0.404 1.0 2072.0 0.417 0.4 2073.0 0.430 359.9 2074.0 0.443 359.4 2075.0 0.455 358.9 2076.0 0.466 358.5 2077.0 0.478 358.1