| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:16:55 |
| WDS: | HDS781 | WDS ID/Discoverer |
| P: | 105.000 | Orbital period (years) |
| a: | 0.195 | Semi-major axis (arcseconds) |
| i: | 46.9 | Inclination (degrees) |
| Ω: | 100.1 | Longitude of ascending node (degrees) |
| T: | 1991.940 | Epoch of periastron passage (year) |
| e: | 0.277 | Eccentricity |
| ω: | 205.8 | Longitude of periastron (degrees) |
| Start-Year: | 1973.0 | Year |
| End-Year: | 2077.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 054839.68-141851.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 05487-1419 | WDS designation |
| Discoverer Code: | HDS781 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 38931 | HD catalog number |
| Hipparcos number: | 27444 | Hipparcos catalog number |
| V1: | 7.16 | Magnitude of the primary |
| V2: | 8.55 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2021 | Date of last observation |
| Orbit grade: | 4 | 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 0.222 89.0 ------------------------- 1973.0 0.135 216.8 1974.0 0.135 221.5 1975.0 0.136 226.2 1976.0 0.137 230.8 1977.0 0.138 235.3 1978.0 0.139 239.8 1979.0 0.141 244.1 1980.0 0.142 248.4 1981.0 0.143 252.6 1982.0 0.145 256.7 1983.0 0.145 260.8 1984.0 0.146 264.8 1985.0 0.146 268.8 1986.0 0.146 272.8 1987.0 0.145 276.9 1988.0 0.144 281.0 1989.0 0.142 285.2 1990.0 0.140 289.5 1991.0 0.137 294.0 1992.0 0.133 298.7 1993.0 0.130 303.6 1994.0 0.126 308.8 1995.0 0.122 314.4 1996.0 0.119 320.3 1997.0 0.115 326.6 1998.0 0.112 333.2 1999.0 0.110 340.2 2000.0 0.108 347.4 2001.0 0.108 354.7 2002.0 0.108 2.1 2003.0 0.110 9.3 2004.0 0.112 16.3 2005.0 0.115 23.0 2006.0 0.120 29.2 2007.0 0.124 34.9 2008.0 0.130 40.3 2009.0 0.135 45.1 2010.0 0.141 49.6 2011.0 0.148 53.7 2012.0 0.154 57.5 2013.0 0.160 61.0 2014.0 0.166 64.2 2015.0 0.173 67.2 2016.0 0.179 69.9 2017.0 0.184 72.5 2018.0 0.190 75.0 2019.0 0.195 77.3 2020.0 0.201 79.5 2021.0 0.206 81.5 2022.0 0.210 83.5 2023.0 0.214 85.4 2024.0 0.218 87.2 2025.0 0.222 89.0 2026.0 0.226 90.7 2027.0 0.229 92.4 2028.0 0.232 94.0 2029.0 0.234 95.6 2030.0 0.236 97.1 2031.0 0.238 98.6 2032.0 0.240 100.1 2033.0 0.241 101.6 2034.0 0.242 103.1 2035.0 0.243 104.5 2036.0 0.243 106.0 2037.0 0.243 107.4 2038.0 0.243 108.9 2039.0 0.243 110.3 2040.0 0.242 111.8 2041.0 0.241 113.2 2042.0 0.240 114.7 2043.0 0.239 116.2 2044.0 0.237 117.7 2045.0 0.235 119.2 2046.0 0.233 120.8 2047.0 0.230 122.4 2048.0 0.228 124.0 2049.0 0.225 125.7 2050.0 0.222 127.4 2051.0 0.219 129.2 2052.0 0.215 131.0 2053.0 0.212 132.9 2054.0 0.208 134.8 2055.0 0.204 136.8 2056.0 0.200 138.9 2057.0 0.196 141.1 2058.0 0.192 143.4 2059.0 0.188 145.7 2060.0 0.184 148.2 2061.0 0.179 150.8 2062.0 0.175 153.5 2063.0 0.171 156.4 2064.0 0.167 159.4 2065.0 0.163 162.5 2066.0 0.159 165.9 2067.0 0.155 169.3 2068.0 0.152 173.0 2069.0 0.148 176.8 2070.0 0.145 180.7 2071.0 0.143 184.9 2072.0 0.140 189.1 2073.0 0.138 193.5 2074.0 0.137 198.1 2075.0 0.136 202.7 2076.0 0.135 207.4