| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:36:17 |
| WDS: | WRH39AA,AB | WDS ID/Discoverer |
| P: | 29.590 | Orbital period (years) |
| a: | 0.1204 | Semi-major axis (arcseconds) |
| i: | 146.2 | Inclination (degrees) |
| Ω: | 191.4 | Longitude of ascending node (degrees) |
| T: | 1987.660 | Epoch of periastron passage (year) |
| e: | 0.608 | Eccentricity |
| ω: | 303.01 | Longitude of periastron (degrees) |
| Start-Year: | 2011.0 | Year |
| End-Year: | 2039.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 023149.09+891550.7 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02318+8916 | WDS designation |
| Discoverer Code: | WRH39AA,AB | Discover designation and components |
| ADS number: | 1477 | Aitken Double Star catalog |
| HD number: | 8890 | HD catalog number |
| Hipparcos number: | 11767 | Hipparcos catalog number |
| V1: | 2.3 | Magnitude of the primary |
| V2: | 4.3 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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 0.134 97.5 ------------------------- 2011.0 0.142 26.7 2012.0 0.130 20.4 2013.0 0.116 12.7 2014.0 0.098 2.6 2015.0 0.077 347.3 2016.0 0.054 319.1 2017.0 0.041 260.7 2018.0 0.052 202.5 2019.0 0.068 170.0 2020.0 0.082 149.2 2021.0 0.094 134.0 2022.0 0.105 122.2 2023.0 0.115 112.6 2024.0 0.125 104.5 2025.0 0.134 97.5 2026.0 0.142 91.4 2027.0 0.149 85.9 2028.0 0.155 80.8 2029.0 0.161 76.2 2030.0 0.165 71.8 2031.0 0.169 67.6 2032.0 0.171 63.6 2033.0 0.173 59.6 2034.0 0.173 55.7 2035.0 0.172 51.8 2036.0 0.170 47.9 2037.0 0.167 43.8 2038.0 0.162 39.5