| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:40:42 |
| WDS: | COU490 | WDS ID/Discoverer |
| P: | 100.100 | Orbital period (years) |
| a: | 0.218 | Semi-major axis (arcseconds) |
| i: | 130.1 | Inclination (degrees) |
| Ω: | 1.7 | Longitude of ascending node (degrees) |
| T: | 2007.340 | Epoch of periastron passage (year) |
| e: | 0.151 | Eccentricity |
| ω: | 68.8 | Longitude of periastron (degrees) |
| Start-Year: | 1975.0 | Year |
| End-Year: | 2075.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 164458.51+292737.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 16450+2928 | WDS designation |
| Discoverer Code: | COU490 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 151236 | HD catalog number |
| Hipparcos number: | . | Hipparcos catalog number |
| V1: | 8.8 | Magnitude of the primary |
| V2: | 8.8 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2005 | Date of last observation |
| Orbit grade: | 4 | 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 0.191 202.9 ------------------------- 1975.0 0.175 51.8 1976.0 0.178 48.3 1977.0 0.181 44.9 1978.0 0.184 41.6 1979.0 0.187 38.4 1980.0 0.190 35.4 1981.0 0.193 32.4 1982.0 0.196 29.5 1983.0 0.198 26.7 1984.0 0.200 24.0 1985.0 0.202 21.3 1986.0 0.204 18.6 1987.0 0.205 16.0 1988.0 0.205 13.4 1989.0 0.205 10.8 1990.0 0.205 8.3 1991.0 0.204 5.7 1992.0 0.203 3.0 1993.0 0.201 0.4 1994.0 0.198 357.6 1995.0 0.195 354.8 1996.0 0.192 351.9 1997.0 0.188 348.9 1998.0 0.183 345.7 1999.0 0.178 342.4 2000.0 0.172 338.8 2001.0 0.166 335.1 2002.0 0.160 331.0 2003.0 0.154 326.6 2004.0 0.148 321.8 2005.0 0.142 316.6 2006.0 0.136 311.0 2007.0 0.131 304.9 2008.0 0.127 298.4 2009.0 0.124 291.4 2010.0 0.121 284.2 2011.0 0.120 276.7 2012.0 0.121 269.2 2013.0 0.122 261.8 2014.0 0.125 254.6 2015.0 0.129 247.8 2016.0 0.134 241.5 2017.0 0.139 235.7 2018.0 0.145 230.3 2019.0 0.152 225.3 2020.0 0.158 220.8 2021.0 0.165 216.6 2022.0 0.172 212.8 2023.0 0.178 209.3 2024.0 0.185 206.0 2025.0 0.191 202.9 2026.0 0.197 200.0 2027.0 0.202 197.2 2028.0 0.207 194.6 2029.0 0.211 192.1 2030.0 0.215 189.7 2031.0 0.219 187.4 2032.0 0.222 185.2 2033.0 0.224 183.0 2034.0 0.226 180.8 2035.0 0.228 178.7 2036.0 0.229 176.6 2037.0 0.229 174.6 2038.0 0.229 172.5 2039.0 0.229 170.4 2040.0 0.228 168.3 2041.0 0.227 166.2 2042.0 0.226 164.1 2043.0 0.224 162.0 2044.0 0.222 159.8 2045.0 0.219 157.5 2046.0 0.216 155.2 2047.0 0.213 152.9 2048.0 0.210 150.4 2049.0 0.207 147.9 2050.0 0.203 145.3 2051.0 0.199 142.6 2052.0 0.196 139.8 2053.0 0.192 136.9 2054.0 0.188 133.9 2055.0 0.184 130.8 2056.0 0.181 127.5 2057.0 0.177 124.1 2058.0 0.174 120.6 2059.0 0.171 116.9 2060.0 0.168 113.1 2061.0 0.166 109.2 2062.0 0.164 105.2 2063.0 0.162 101.1 2064.0 0.161 96.9 2065.0 0.160 92.7 2066.0 0.159 88.4 2067.0 0.160 84.1 2068.0 0.160 79.9 2069.0 0.161 75.6 2070.0 0.162 71.5 2071.0 0.164 67.4 2072.0 0.166 63.4 2073.0 0.169 59.5 2074.0 0.171 55.8