| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:44:06 |
| WDS: | DON43 | WDS ID/Discoverer |
| P: | 121.500 | Orbital period (years) |
| a: | 0.201 | Semi-major axis (arcseconds) |
| i: | 39.2 | Inclination (degrees) |
| Ω: | 51.7 | Longitude of ascending node (degrees) |
| T: | 1984.700 | Epoch of periastron passage (year) |
| e: | 0.415 | Eccentricity |
| ω: | 97.1 | Longitude of periastron (degrees) |
| Start-Year: | 1965.0 | Year |
| End-Year: | 2085.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 025121.23-213840.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02514-2139 | WDS designation |
| Discoverer Code: | DON43 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 17884 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 9.8 | Magnitude of the primary |
| V2: | 10.0 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2022 | 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 0.211 294.1 ------------------------- 1965.0 0.188 44.0 1966.0 0.184 46.5 1967.0 0.180 49.0 1968.0 0.175 51.7 1969.0 0.171 54.5 1970.0 0.165 57.5 1971.0 0.160 60.7 1972.0 0.154 64.1 1973.0 0.148 67.8 1974.0 0.142 71.8 1975.0 0.135 76.2 1976.0 0.129 81.1 1977.0 0.122 86.5 1978.0 0.115 92.5 1979.0 0.109 99.2 1980.0 0.103 106.6 1981.0 0.099 114.9 1982.0 0.095 124.0 1983.0 0.092 133.7 1984.0 0.091 143.8 1985.0 0.092 153.8 1986.0 0.094 163.6 1987.0 0.098 172.8 1988.0 0.102 181.2 1989.0 0.108 188.9 1990.0 0.114 195.7 1991.0 0.120 201.9 1992.0 0.126 207.5 1993.0 0.132 212.6 1994.0 0.138 217.2 1995.0 0.144 221.4 1996.0 0.149 225.3 1997.0 0.154 229.0 1998.0 0.159 232.4 1999.0 0.164 235.7 2000.0 0.168 238.7 2001.0 0.172 241.7 2002.0 0.175 244.5 2003.0 0.179 247.2 2004.0 0.182 249.8 2005.0 0.185 252.3 2006.0 0.187 254.7 2007.0 0.190 257.1 2008.0 0.192 259.4 2009.0 0.194 261.7 2010.0 0.196 263.9 2011.0 0.197 266.1 2012.0 0.199 268.2 2013.0 0.200 270.4 2014.0 0.202 272.5 2015.0 0.203 274.5 2016.0 0.204 276.5 2017.0 0.205 278.6 2018.0 0.206 280.6 2019.0 0.207 282.5 2020.0 0.208 284.5 2021.0 0.209 286.4 2022.0 0.209 288.4 2023.0 0.210 290.3 2024.0 0.211 292.2 2025.0 0.211 294.1 2026.0 0.212 296.0 2027.0 0.213 297.8 2028.0 0.213 299.7 2029.0 0.214 301.6 2030.0 0.214 303.4 2031.0 0.215 305.2 2032.0 0.215 307.1 2033.0 0.216 308.9 2034.0 0.216 310.7 2035.0 0.217 312.5 2036.0 0.217 314.3 2037.0 0.218 316.0 2038.0 0.218 317.8 2039.0 0.219 319.6 2040.0 0.219 321.4 2041.0 0.220 323.1 2042.0 0.220 324.9 2043.0 0.220 326.6 2044.0 0.221 328.3 2045.0 0.221 330.1 2046.0 0.222 331.8 2047.0 0.222 333.5 2048.0 0.223 335.2 2049.0 0.223 336.9 2050.0 0.223 338.6 2051.0 0.224 340.3 2052.0 0.224 342.0 2053.0 0.224 343.6 2054.0 0.225 345.3 2055.0 0.225 347.0 2056.0 0.225 348.7 2057.0 0.225 350.3 2058.0 0.225 352.0 2059.0 0.225 353.7 2060.0 0.225 355.3 2061.0 0.225 357.0 2062.0 0.225 358.6 2063.0 0.225 0.3 2064.0 0.225 2.0 2065.0 0.225 3.6 2066.0 0.224 5.3 2067.0 0.224 7.0 2068.0 0.224 8.7 2069.0 0.223 10.4 2070.0 0.222 12.1 2071.0 0.221 13.8 2072.0 0.220 15.5 2073.0 0.219 17.2 2074.0 0.218 19.0 2075.0 0.217 20.8 2076.0 0.215 22.6 2077.0 0.214 24.4 2078.0 0.212 26.3 2079.0 0.210 28.2 2080.0 0.208 30.1 2081.0 0.205 32.1 2082.0 0.203 34.1 2083.0 0.200 36.2 2084.0 0.197 38.4