| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 17:00:39 |
| WDS: | MCA15BA,BB | WDS ID/Discoverer |
| P: | 16.260 | Orbital period (years) |
| a: | 0.2178 | Semi-major axis (arcseconds) |
| i: | 92.35 | Inclination (degrees) |
| Ω: | 355.54 | Longitude of ascending node (degrees) |
| T: | 1998.510 | Epoch of periastron passage (year) |
| e: | 0.57 | Eccentricity |
| ω: | 250.1 | Longitude of periastron (degrees) |
| Start-Year: | 2017.0 | Year |
| End-Year: | 2033.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 042834.43+155744.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04287+1552 | WDS designation |
| Discoverer Code: | MCA15BA,BB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 28307 | HD catalog number |
| Hipparcos number: | 20885 | Hipparcos catalog number |
| V1: | 3.84 | Magnitude of the primary |
| V2: | 7.3 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1994 | Date of last observation |
| Orbit grade: | 3 | 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 0.026 324.3 ------------------------- 2017.0 0.198 355.2 2018.0 0.223 354.4 2019.0 0.225 353.7 2020.0 0.210 353.0 2021.0 0.185 352.1 2022.0 0.152 350.9 2023.0 0.113 348.8 2024.0 0.070 344.3 2025.0 0.026 324.3 2026.0 0.028 201.6 2027.0 0.072 184.3 2028.0 0.112 179.9 2029.0 0.139 177.7 2030.0 0.131 175.9 2031.0 0.037 170.0 2032.0 0.107 357.1