| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:51:50 |
| WDS: | HDS441 | WDS ID/Discoverer |
| P: | 18.964 | Orbital period (years) |
| a: | 0.2181 | Semi-major axis (arcseconds) |
| i: | 102.7 | Inclination (degrees) |
| Ω: | 17.8 | Longitude of ascending node (degrees) |
| T: | 2007.281 | Epoch of periastron passage (year) |
| e: | 0.5 | Eccentricity |
| ω: | 84.4 | Longitude of periastron (degrees) |
| Start-Year: | 2016.0 | Year |
| End-Year: | 2034.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 033040.06-192608.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 03307-1926 | WDS designation |
| Discoverer Code: | HDS441 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 21841 | HD catalog number |
| Hipparcos number: | 16348 | Hipparcos catalog number |
| V1: | 8.22 | Magnitude of the primary |
| V2: | 8.47 | 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: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.134 14.3 ------------------------- 2016.0 0.094 149.8 2017.0 0.075 124.9 2018.0 0.074 92.2 2019.0 0.091 65.8 2020.0 0.118 49.6 2021.0 0.145 39.5 2022.0 0.167 32.5 2023.0 0.179 26.8 2024.0 0.173 21.4 2025.0 0.134 14.3 2026.0 0.046 348.7 2027.0 0.081 212.2 2028.0 0.158 199.7 2029.0 0.193 194.2 2030.0 0.201 189.9 2031.0 0.193 185.5 2032.0 0.175 180.5 2033.0 0.149 173.9