| Coord 2000 | 23424+3903 | Discov num | A 1494 | Comp | Coord arcsec 2000 | 23 42 24.43 +39 03 29.4 | |||||
| Date first | 1906 | Date last | 2019 | Obs | 16 | ||||||
| Pa first | 189 | Pa last | 315.6 | P.A. Now (θ) | 315.6° | ||||||
| Sep first | 0.3 | Sep last | 0.08 | Sep. Now (ρ) | 0.08" | ||||||
| Mag pri | 9.30 | Mag sec | 10.78 | delta mag (ΔM) | 1.48 | Spectral class | G5 (yellow) | ||||
| Pri motion ra | +024 | Sec motion ra | |||||||||
| Pri motion dec | -019 | Sec motion dec | |||||||||
| Notes | O (Orbital solution) | ||||||||||
| Name | HD 222648 | Constellation | Andromeda | SAO | 73450 | HIP | 116952 | ||||
| Tycho2 | 3232-00426-1 | Gaia DR2 | 1919538364825054208 | HD | 222648 | ADS | 16939 | ||||
| BD | BD+38 5056 | Distance | 232.56 | Distance ly | 758.61 |
| Period (P) | 190y | ± 4.5 | Periastron (T) | 2003.7y | ± 5.75 | Semi-major axis (a) | 0.24a | ± 0.018 |
| Eccentricity (e) | 0.45 | ± 0.082 | Inclination (i) | 116.9° | ± 1.6 | Longitude of periastron (ω) | 1.7° | ± 6.1 |
| Node (Ω) | 15.6° | ± 1.8 | Notes | Reference | Gur2020 | |||
| Equinox | Last observation | 2019 | Grade | 4 | (1=Definitive, 9=Indet.) |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. ![]() Measures: green=micrometric, blue=interferometric, purple=photographic |
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