| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:19:56 |
| WDS: | HDS57 | WDS ID/Discoverer |
| P: | 96.700 | Orbital period (years) |
| a: | 0.179 | Semi-major axis (arcseconds) |
| i: | 131.8 | Inclination (degrees) |
| Ω: | 52.9 | Longitude of ascending node (degrees) |
| T: | 2019.260 | Epoch of periastron passage (year) |
| e: | 0.527 | Eccentricity |
| ω: | 47.4 | Longitude of periastron (degrees) |
| Start-Year: | 1977.0 | Year |
| End-Year: | 2073.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 002549.78+102524.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00258+1025 | WDS designation |
| Discoverer Code: | HDS57 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 2157 | HD catalog number |
| Hipparcos number: | 2035 | Hipparcos catalog number |
| V1: | 9.71 | Magnitude of the primary |
| V2: | 10.71 | 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 0.080 287.2 ------------------------- 1977.0 0.213 188.5 1978.0 0.210 187.0 1979.0 0.207 185.5 1980.0 0.203 183.9 1981.0 0.200 182.2 1982.0 0.197 180.5 1983.0 0.193 178.7 1984.0 0.190 176.9 1985.0 0.186 174.9 1986.0 0.182 172.9 1987.0 0.178 170.9 1988.0 0.175 168.7 1989.0 0.171 166.4 1990.0 0.167 164.1 1991.0 0.163 161.6 1992.0 0.160 159.0 1993.0 0.156 156.3 1994.0 0.152 153.4 1995.0 0.149 150.5 1996.0 0.145 147.3 1997.0 0.142 144.1 1998.0 0.139 140.6 1999.0 0.136 137.0 2000.0 0.133 133.3 2001.0 0.130 129.4 2002.0 0.127 125.3 2003.0 0.125 121.0 2004.0 0.123 116.6 2005.0 0.121 112.1 2006.0 0.119 107.4 2007.0 0.117 102.5 2008.0 0.116 97.6 2009.0 0.114 92.5 2010.0 0.113 87.2 2011.0 0.111 81.8 2012.0 0.109 76.2 2013.0 0.106 70.3 2014.0 0.103 64.1 2015.0 0.098 57.4 2016.0 0.093 50.0 2017.0 0.087 41.7 2018.0 0.080 32.0 2019.0 0.073 20.4 2020.0 0.066 6.2 2021.0 0.062 349.5 2022.0 0.061 331.4 2023.0 0.064 314.0 2024.0 0.071 299.1 2025.0 0.080 287.2 2026.0 0.090 277.8 2027.0 0.101 270.4 2028.0 0.112 264.4 2029.0 0.122 259.4 2030.0 0.132 255.3 2031.0 0.142 251.7 2032.0 0.151 248.5 2033.0 0.159 245.7 2034.0 0.167 243.2 2035.0 0.175 240.9 2036.0 0.182 238.7 2037.0 0.188 236.8 2038.0 0.194 234.9 2039.0 0.200 233.2 2040.0 0.205 231.5 2041.0 0.210 230.0 2042.0 0.214 228.5 2043.0 0.218 227.0 2044.0 0.222 225.6 2045.0 0.225 224.3 2046.0 0.228 223.0 2047.0 0.231 221.7 2048.0 0.233 220.4 2049.0 0.235 219.2 2050.0 0.237 218.0 2051.0 0.238 216.8 2052.0 0.239 215.6 2053.0 0.240 214.4 2054.0 0.241 213.3 2055.0 0.241 212.1 2056.0 0.241 210.9 2057.0 0.241 209.8 2058.0 0.241 208.6 2059.0 0.241 207.4 2060.0 0.240 206.3 2061.0 0.239 205.1 2062.0 0.238 203.9 2063.0 0.237 202.7 2064.0 0.235 201.5 2065.0 0.234 200.3 2066.0 0.232 199.0 2067.0 0.230 197.7 2068.0 0.228 196.5 2069.0 0.225 195.1 2070.0 0.223 193.8 2071.0 0.220 192.4 2072.0 0.218 191.0