| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:17:55 |
| WDS: | I669AB | WDS ID/Discoverer |
| P: | 113.600 | Orbital period (years) |
| a: | 0.684 | Semi-major axis (arcseconds) |
| i: | 93.66 | Inclination (degrees) |
| Ω: | 63.02 | Longitude of ascending node (degrees) |
| T: | 2010.620 | Epoch of periastron passage (year) |
| e: | 0.613 | Eccentricity |
| ω: | 207.6 | Longitude of periastron (degrees) |
| Start-Year: | 1969.0 | Year |
| End-Year: | 2081.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 205940.24-521028.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20597-5211 | WDS designation |
| Discoverer Code: | I669AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 199489 | HD catalog number |
| Hipparcos number: | 103620 | Hipparcos catalog number |
| V1: | 9.01 | Magnitude of the primary |
| V2: | 9.51 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 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 0.515 65.4 ------------------------- 1969.0 0.769 59.6 1970.0 0.750 59.5 1971.0 0.730 59.4 1972.0 0.710 59.2 1973.0 0.689 59.1 1974.0 0.667 58.9 1975.0 0.645 58.7 1976.0 0.622 58.6 1977.0 0.598 58.4 1978.0 0.574 58.1 1979.0 0.549 57.9 1980.0 0.523 57.6 1981.0 0.497 57.4 1982.0 0.470 57.0 1983.0 0.443 56.7 1984.0 0.414 56.3 1985.0 0.386 55.8 1986.0 0.357 55.3 1987.0 0.327 54.6 1988.0 0.296 53.8 1989.0 0.265 52.9 1990.0 0.234 51.7 1991.0 0.202 50.1 1992.0 0.170 47.9 1993.0 0.138 44.8 1994.0 0.106 39.7 1995.0 0.076 30.4 1996.0 0.049 10.0 1997.0 0.038 326.1 1998.0 0.053 285.9 1999.0 0.080 268.1 2000.0 0.111 259.7 2001.0 0.142 255.0 2002.0 0.173 251.9 2003.0 0.202 249.8 2004.0 0.229 248.2 2005.0 0.252 246.9 2006.0 0.270 245.8 2007.0 0.281 244.8 2008.0 0.284 243.9 2009.0 0.276 242.9 2010.0 0.254 241.9 2011.0 0.220 240.6 2012.0 0.175 238.6 2013.0 0.122 235.1 2014.0 0.064 225.6 2015.0 0.021 153.7 2016.0 0.065 83.4 2017.0 0.123 74.0 2018.0 0.181 70.7 2019.0 0.236 68.9 2020.0 0.289 67.8 2021.0 0.339 67.1 2022.0 0.387 66.5 2023.0 0.432 66.0 2024.0 0.475 65.7 2025.0 0.515 65.4 2026.0 0.554 65.1 2027.0 0.590 64.9 2028.0 0.624 64.7 2029.0 0.657 64.5 2030.0 0.687 64.3 2031.0 0.716 64.2 2032.0 0.744 64.0 2033.0 0.769 63.9 2034.0 0.793 63.8 2035.0 0.816 63.7 2036.0 0.837 63.6 2037.0 0.857 63.5 2038.0 0.876 63.4 2039.0 0.893 63.3 2040.0 0.910 63.2 2041.0 0.925 63.1 2042.0 0.938 63.0 2043.0 0.951 62.9 2044.0 0.963 62.8 2045.0 0.973 62.8 2046.0 0.983 62.7 2047.0 0.992 62.6 2048.0 0.999 62.5 2049.0 1.006 62.4 2050.0 1.012 62.4 2051.0 1.017 62.3 2052.0 1.020 62.2 2053.0 1.024 62.2 2054.0 1.026 62.1 2055.0 1.027 62.0 2056.0 1.028 61.9 2057.0 1.027 61.9 2058.0 1.026 61.8 2059.0 1.024 61.7 2060.0 1.022 61.7 2061.0 1.018 61.6 2062.0 1.014 61.5 2063.0 1.009 61.4 2064.0 1.003 61.4 2065.0 0.997 61.3 2066.0 0.990 61.2 2067.0 0.982 61.1 2068.0 0.973 61.1 2069.0 0.964 61.0 2070.0 0.954 60.9 2071.0 0.943 60.8 2072.0 0.932 60.7 2073.0 0.920 60.6 2074.0 0.907 60.6 2075.0 0.893 60.5 2076.0 0.879 60.4 2077.0 0.865 60.3 2078.0 0.849 60.2 2079.0 0.833 60.1 2080.0 0.816 60.0