| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:30:37 |
| WDS: | STF2873A | WDS ID/Discoverer |
| P: | 23.000 | Orbital period (years) |
| a: | 0.87 | Semi-major axis (arcseconds) |
| i: | 52.0 | Inclination (degrees) |
| Ω: | 31.0 | Longitude of ascending node (degrees) |
| T: | 1993.500 | Epoch of periastron passage (year) |
| e: | 0.4 | Eccentricity |
| ω: | 16.0 | Longitude of periastron (degrees) |
| Start-Year: | 2014.0 | Year |
| End-Year: | 2036.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 215813.53+825210.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21582+8252 | WDS designation |
| Discoverer Code: | STF2873A | Discover designation and components |
| ADS number: | 15571 | Aitken Double Star catalog |
| HD number: | 209942 | HD catalog number |
| Hipparcos number: | 108456 | Hipparcos catalog number |
| V1: | 7.00 | Magnitude of the primary |
| V2: | . | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | Date of last observation | |
| Orbit grade: | 9 | 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 1.153 206.9 ------------------------- 2014.0 0.481 337.7 2015.0 0.517 4.8 2016.0 0.530 28.7 2017.0 0.471 54.9 2018.0 0.397 91.3 2019.0 0.430 132.8 2020.0 0.565 160.9 2021.0 0.725 177.2 2022.0 0.872 187.7 2023.0 0.994 195.4 2024.0 1.088 201.6 2025.0 1.153 206.9 2026.0 1.191 211.7 2027.0 1.203 216.4 2028.0 1.189 221.0 2029.0 1.151 225.9 2030.0 1.090 231.2 2031.0 1.008 237.3 2032.0 0.907 244.6 2033.0 0.793 253.8 2034.0 0.673 266.4 2035.0 0.563 284.1