| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:04:05 |
| WDS: | COU2031 | WDS ID/Discoverer |
| P: | 20.580 | Orbital period (years) |
| a: | 0.1499 | Semi-major axis (arcseconds) |
| i: | 81.8 | Inclination (degrees) |
| Ω: | 147.6 | Longitude of ascending node (degrees) |
| T: | 2008.980 | Epoch of periastron passage (year) |
| e: | 0.274 | Eccentricity |
| ω: | 188.9 | Longitude of periastron (degrees) |
| Start-Year: | 2015.0 | Year |
| End-Year: | 2035.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 044626.92+422054.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04464+4221 | WDS designation |
| Discoverer Code: | COU2031 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 30090 | HD catalog number |
| Hipparcos number: | 22196 | Hipparcos catalog number |
| V1: | 6.9 | Magnitude of the primary |
| V2: | 7.8 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | 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 0.039 181.2 ------------------------- 2015.0 0.133 141.0 2016.0 0.160 143.5 2017.0 0.179 145.4 2018.0 0.189 147.0 2019.0 0.190 148.5 2020.0 0.183 150.0 2021.0 0.167 151.8 2022.0 0.144 154.0 2023.0 0.114 157.2 2024.0 0.078 163.2 2025.0 0.039 181.2 2026.0 0.024 270.6 2027.0 0.059 311.4 2028.0 0.092 321.1 2029.0 0.109 326.3 2030.0 0.101 331.0 2031.0 0.071 338.3 2032.0 0.030 3.4 2033.0 0.032 109.2 2034.0 0.074 132.6