| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:52:19 |
| WDS: | B1870 | WDS ID/Discoverer |
| P: | 111.300 | Orbital period (years) |
| a: | 0.153 | Semi-major axis (arcseconds) |
| i: | 126.9 | Inclination (degrees) |
| Ω: | 110.7 | Longitude of ascending node (degrees) |
| T: | 1999.760 | Epoch of periastron passage (year) |
| e: | 0.487 | Eccentricity |
| ω: | 151.6 | Longitude of periastron (degrees) |
| Start-Year: | 1970.0 | Year |
| End-Year: | 2080.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 175404.21-482030.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17541-4821 | WDS designation |
| Discoverer Code: | B1870 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 162551 | HD catalog number |
| Hipparcos number: | 87635 | Hipparcos catalog number |
| V1: | 9.2 | Magnitude of the primary |
| V2: | 9.4 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2018 | 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 0.112 175.9 ------------------------- 1970.0 0.189 105.4 1971.0 0.186 104.2 1972.0 0.182 103.1 1973.0 0.178 101.8 1974.0 0.173 100.5 1975.0 0.169 99.2 1976.0 0.164 97.8 1977.0 0.159 96.2 1978.0 0.153 94.6 1979.0 0.148 92.8 1980.0 0.142 90.9 1981.0 0.135 88.9 1982.0 0.129 86.6 1983.0 0.122 84.1 1984.0 0.115 81.3 1985.0 0.108 78.1 1986.0 0.101 74.5 1987.0 0.094 70.3 1988.0 0.086 65.4 1989.0 0.079 59.6 1990.0 0.073 52.6 1991.0 0.066 44.4 1992.0 0.061 34.6 1993.0 0.057 23.2 1994.0 0.055 10.7 1995.0 0.055 357.7 1996.0 0.057 345.2 1997.0 0.061 333.7 1998.0 0.065 323.5 1999.0 0.069 314.7 2000.0 0.074 306.9 2001.0 0.077 299.9 2002.0 0.081 293.6 2003.0 0.083 287.6 2004.0 0.084 282.0 2005.0 0.085 276.4 2006.0 0.085 270.9 2007.0 0.085 265.5 2008.0 0.085 259.9 2009.0 0.084 254.4 2010.0 0.083 248.7 2011.0 0.083 242.9 2012.0 0.083 237.2 2013.0 0.083 231.4 2014.0 0.083 225.6 2015.0 0.084 220.0 2016.0 0.086 214.5 2017.0 0.087 209.2 2018.0 0.090 204.1 2019.0 0.092 199.3 2020.0 0.095 194.7 2021.0 0.098 190.4 2022.0 0.101 186.4 2023.0 0.105 182.7 2024.0 0.108 179.2 2025.0 0.112 175.9 2026.0 0.116 172.9 2027.0 0.120 170.0 2028.0 0.124 167.4 2029.0 0.128 164.9 2030.0 0.133 162.6 2031.0 0.137 160.4 2032.0 0.141 158.3 2033.0 0.145 156.4 2034.0 0.149 154.5 2035.0 0.153 152.8 2036.0 0.157 151.1 2037.0 0.160 149.5 2038.0 0.164 148.0 2039.0 0.168 146.6 2040.0 0.171 145.2 2041.0 0.175 143.9 2042.0 0.178 142.6 2043.0 0.181 141.4 2044.0 0.184 140.2 2045.0 0.187 139.0 2046.0 0.190 137.9 2047.0 0.193 136.8 2048.0 0.196 135.8 2049.0 0.198 134.8 2050.0 0.200 133.8 2051.0 0.202 132.8 2052.0 0.205 131.8 2053.0 0.206 130.9 2054.0 0.208 130.0 2055.0 0.210 129.1 2056.0 0.211 128.2 2057.0 0.213 127.3 2058.0 0.214 126.4 2059.0 0.215 125.5 2060.0 0.216 124.7 2061.0 0.216 123.8 2062.0 0.217 123.0 2063.0 0.217 122.1 2064.0 0.217 121.3 2065.0 0.217 120.4 2066.0 0.217 119.6 2067.0 0.217 118.8 2068.0 0.216 117.9 2069.0 0.215 117.1 2070.0 0.214 116.2 2071.0 0.213 115.3 2072.0 0.212 114.4 2073.0 0.210 113.6 2074.0 0.209 112.6 2075.0 0.207 111.7 2076.0 0.204 110.8 2077.0 0.202 109.8 2078.0 0.199 108.8 2079.0 0.197 107.8