| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:40:03 |
| WDS: | A550 | WDS ID/Discoverer |
| P: | 21.049 | Orbital period (years) |
| a: | 0.107 | Semi-major axis (arcseconds) |
| i: | 141.4 | Inclination (degrees) |
| Ω: | 63.7 | Longitude of ascending node (degrees) |
| T: | 2002.362 | Epoch of periastron passage (year) |
| e: | 0.887 | Eccentricity |
| ω: | 76.1 | Longitude of periastron (degrees) |
| Start-Year: | 2015.0 | Year |
| End-Year: | 2035.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 082740.81-042453.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 08277-0425 | WDS designation |
| Discoverer Code: | A550 | Discover designation and components |
| ADS number: | 6825 | Aitken Double Star catalog |
| HD number: | 71499 | HD catalog number |
| Hipparcos number: | 41489 | Hipparcos catalog number |
| V1: | 7.47 | Magnitude of the primary |
| V2: | 7.91 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2022 | Date of last observation |
| Orbit grade: | 2 | 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 0.077 208.9 ------------------------- 2015.0 0.155 165.3 2016.0 0.149 162.3 2017.0 0.142 158.9 2018.0 0.132 155.2 2019.0 0.120 150.8 2020.0 0.106 145.2 2021.0 0.088 137.6 2022.0 0.064 125.3 2023.0 0.031 92.1 2024.0 0.042 229.4 2025.0 0.077 208.9 2026.0 0.101 199.9 2027.0 0.118 194.0 2028.0 0.132 189.5 2029.0 0.142 185.8 2030.0 0.150 182.5 2031.0 0.155 179.4 2032.0 0.159 176.6 2033.0 0.161 173.8 2034.0 0.161 171.1