| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:58:47 |
| WDS: | RST3187AB | WDS ID/Discoverer |
| P: | 18.370 | Orbital period (years) |
| a: | 0.1661 | Semi-major axis (arcseconds) |
| i: | 70.1 | Inclination (degrees) |
| Ω: | 40.6 | Longitude of ascending node (degrees) |
| T: | 2017.300 | Epoch of periastron passage (year) |
| e: | 0.364 | Eccentricity |
| ω: | 7.2 | Longitude of periastron (degrees) |
| Start-Year: | 2016.0 | Year |
| End-Year: | 2034.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 183648.23-261721.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 18368-2617 | WDS designation |
| Discoverer Code: | RST3187AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 171595 | HD catalog number |
| Hipparcos number: | 91253 | Hipparcos catalog number |
| V1: | 8.47 | Magnitude of the primary |
| V2: | 8.96 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 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 0.221 218.0 ------------------------- 2016.0 0.086 20.6 2017.0 0.106 38.5 2018.0 0.090 55.5 2019.0 0.053 91.9 2020.0 0.058 161.8 2021.0 0.102 191.7 2022.0 0.145 203.2 2023.0 0.180 209.7 2024.0 0.205 214.3 2025.0 0.221 218.0 2026.0 0.226 221.4 2027.0 0.222 224.8 2028.0 0.208 228.5 2029.0 0.185 233.0 2030.0 0.153 239.0 2031.0 0.114 248.7 2032.0 0.073 269.2 2033.0 0.051 320.7