| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:15:31 |
| WDS: | HDS2947 | WDS ID/Discoverer |
| P: | 17.688 | Orbital period (years) |
| a: | 0.139 | Semi-major axis (arcseconds) |
| i: | 104.3 | Inclination (degrees) |
| Ω: | 101.6 | Longitude of ascending node (degrees) |
| T: | 2014.815 | Epoch of periastron passage (year) |
| e: | 0.749 | Eccentricity |
| ω: | 158.3 | Longitude of periastron (degrees) |
| Start-Year: | 2017.0 | Year |
| End-Year: | 2033.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 204035.25+153835.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 20406+1539 | WDS designation |
| Discoverer Code: | HDS2947 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 197039 | HD catalog number |
| Hipparcos number: | 102029 | Hipparcos catalog number |
| V1: | 7.27 | Magnitude of the primary |
| V2: | 8.14 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2019 | Date of last observation |
| Orbit grade: | 2 | 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 0.231 105.6 ------------------------- 2017.0 0.064 129.5 2018.0 0.105 120.1 2019.0 0.140 115.7 2020.0 0.168 113.0 2021.0 0.191 111.0 2022.0 0.209 109.4 2023.0 0.222 108.1 2024.0 0.229 106.8 2025.0 0.231 105.6 2026.0 0.227 104.4 2027.0 0.217 103.1 2028.0 0.201 101.6 2029.0 0.175 99.8 2030.0 0.140 97.2 2031.0 0.089 92.1 2032.0 0.016 48.7