| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:31:06 |
| WDS: | HDS3129 | WDS ID/Discoverer |
| P: | 20.570 | Orbital period (years) |
| a: | 0.1 | Semi-major axis (arcseconds) |
| i: | 124.9 | Inclination (degrees) |
| Ω: | 230.1 | Longitude of ascending node (degrees) |
| T: | 2005.430 | Epoch of periastron passage (year) |
| e: | 0.777 | Eccentricity |
| ω: | 273.1 | Longitude of periastron (degrees) |
| Start-Year: | 2015.0 | Year |
| End-Year: | 2035.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 220255.05+154656.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22029+1547 | WDS designation |
| Discoverer Code: | HDS3129 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 209421 | HD catalog number |
| Hipparcos number: | 108842 | Hipparcos catalog number |
| V1: | 7.65 | Magnitude of the primary |
| V2: | 8.86 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | Date of last observation |
| Orbit grade: | 3 | 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 0.052 59.6 ------------------------- 2015.0 0.101 139.1 2016.0 0.102 133.0 2017.0 0.102 126.9 2018.0 0.102 120.9 2019.0 0.101 114.8 2020.0 0.099 108.5 2021.0 0.096 101.8 2022.0 0.091 94.6 2023.0 0.083 86.3 2024.0 0.072 75.8 2025.0 0.052 59.6 2026.0 0.013 314.7 2027.0 0.051 216.8 2028.0 0.068 199.2 2029.0 0.078 187.5 2030.0 0.085 178.1 2031.0 0.090 169.8 2032.0 0.094 162.4 2033.0 0.097 155.5 2034.0 0.099 148.9