| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:21:32 |
| WDS: | WSI7 | WDS ID/Discoverer |
| P: | 17.800 | Orbital period (years) |
| a: | 0.167 | Semi-major axis (arcseconds) |
| i: | 122.1 | Inclination (degrees) |
| Ω: | 247.3 | Longitude of ascending node (degrees) |
| T: | 2014.600 | Epoch of periastron passage (year) |
| e: | 0.31 | Eccentricity |
| ω: | 285.6 | Longitude of periastron (degrees) |
| Start-Year: | 2017.0 | Year |
| End-Year: | 2033.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 212416.13+373944.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21243+3740 | WDS designation |
| Discoverer Code: | WSI7 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 203940 | HD catalog number |
| Hipparcos number: | 105676 | Hipparcos catalog number |
| V1: | 7.81 | Magnitude of the primary |
| V2: | . | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | Date of last observation |
| Orbit grade: | 4 | 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 0.150 107.0 ------------------------- 2017.0 0.144 243.2 2018.0 0.148 230.1 2019.0 0.140 216.5 2020.0 0.128 200.7 2021.0 0.117 181.6 2022.0 0.114 160.0 2023.0 0.120 139.0 2024.0 0.134 121.2 2025.0 0.150 107.0 2026.0 0.165 95.6 2027.0 0.175 85.8 2028.0 0.176 76.6 2029.0 0.164 66.8 2030.0 0.136 54.3 2031.0 0.094 32.3 2032.0 0.062 338.2