| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:04:48 |
| WDS: | BU552AB | WDS ID/Discoverer |
| P: | 97.700 | Orbital period (years) |
| a: | 0.7432 | Semi-major axis (arcseconds) |
| i: | 50.3 | Inclination (degrees) |
| Ω: | 142.6 | Longitude of ascending node (degrees) |
| T: | 1982.193 | Epoch of periastron passage (year) |
| e: | 0.592 | Eccentricity |
| ω: | 312.3 | Longitude of periastron (degrees) |
| Start-Year: | 1977.0 | Year |
| End-Year: | 2073.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 045149.92+133918.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04518+1339 | WDS designation |
| Discoverer Code: | BU552AB | Discover designation and components |
| ADS number: | 3483 | Aitken Double Star catalog |
| HD number: | 30869 | HD catalog number |
| Hipparcos number: | 22607 | Hipparcos catalog number |
| V1: | 6.41 | Magnitude of the primary |
| V2: | 8.89 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2018 | 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 0.910 280.4 ------------------------- 1977.0 0.313 8.7 1978.0 0.266 21.3 1979.0 0.229 38.6 1980.0 0.211 60.7 1981.0 0.217 84.1 1982.0 0.243 104.2 1983.0 0.278 119.7 1984.0 0.312 131.8 1985.0 0.342 141.6 1986.0 0.366 149.9 1987.0 0.384 157.4 1988.0 0.398 164.2 1989.0 0.410 170.6 1990.0 0.419 176.7 1991.0 0.427 182.6 1992.0 0.436 188.2 1993.0 0.444 193.6 1994.0 0.453 198.8 1995.0 0.462 203.8 1996.0 0.472 208.7 1997.0 0.483 213.2 1998.0 0.495 217.6 1999.0 0.508 221.8 2000.0 0.521 225.8 2001.0 0.536 229.5 2002.0 0.551 233.1 2003.0 0.566 236.4 2004.0 0.582 239.6 2005.0 0.598 242.6 2006.0 0.615 245.5 2007.0 0.631 248.2 2008.0 0.648 250.7 2009.0 0.665 253.2 2010.0 0.682 255.5 2011.0 0.699 257.7 2012.0 0.716 259.8 2013.0 0.733 261.7 2014.0 0.749 263.7 2015.0 0.766 265.5 2016.0 0.782 267.2 2017.0 0.798 268.9 2018.0 0.813 270.5 2019.0 0.828 272.1 2020.0 0.843 273.6 2021.0 0.857 275.0 2022.0 0.871 276.4 2023.0 0.884 277.8 2024.0 0.897 279.1 2025.0 0.910 280.4 2026.0 0.922 281.7 2027.0 0.933 282.9 2028.0 0.944 284.1 2029.0 0.954 285.2 2030.0 0.964 286.4 2031.0 0.973 287.5 2032.0 0.981 288.6 2033.0 0.989 289.7 2034.0 0.996 290.7 2035.0 1.002 291.8 2036.0 1.008 292.8 2037.0 1.013 293.8 2038.0 1.017 294.9 2039.0 1.020 295.9 2040.0 1.023 296.9 2041.0 1.025 297.9 2042.0 1.026 298.9 2043.0 1.026 299.9 2044.0 1.025 300.9 2045.0 1.023 301.9 2046.0 1.020 302.9 2047.0 1.017 303.9 2048.0 1.012 304.9 2049.0 1.006 305.9 2050.0 1.000 307.0 2051.0 0.992 308.0 2052.0 0.983 309.1 2053.0 0.972 310.2 2054.0 0.961 311.3 2055.0 0.948 312.5 2056.0 0.933 313.6 2057.0 0.918 314.9 2058.0 0.900 316.1 2059.0 0.882 317.5 2060.0 0.861 318.8 2061.0 0.839 320.3 2062.0 0.815 321.8 2063.0 0.789 323.4 2064.0 0.761 325.2 2065.0 0.731 327.1 2066.0 0.698 329.1 2067.0 0.663 331.4 2068.0 0.626 333.9 2069.0 0.586 336.8 2070.0 0.543 340.1 2071.0 0.498 343.9 2072.0 0.450 348.6