Coord 2000 | 09174+2339 | Discov num | STF1332 | Comp | Coord arcsec 2000 | 09 17 19.21 +23 39 09.8 | |||||
Date first | 1822 | Date last | 2019 | Obs | 145 | ||||||
Pa first | 14 | Pa last | 29.4 | P.A. Now (θ) | 29.4° | ||||||
Sep first | 5.5 | Sep last | 5.933 | Sep. Now (ρ) | 5.933" | ||||||
Mag pri | 7.87 | Mag sec | 8.12 | delta mag (ΔM) | 0.25 | Spectral class | F6V+F7V (yellow-white/yellow-white) | ||||
Pri motion ra | -046 | Sec motion ra | -046 | ||||||||
Pri motion dec | -067 | Sec motion dec | -067 | ||||||||
Notes | O (Orbital solution) |
Name | HD 79872 | Constellation | Cancer | SAO | 80738 | HIP | 45574 | ||||
Tycho2 | 1951-01947-1 | Gaia DR2 | 687376019276147968 | HD | 79872 | GC | 12804 | ||||
ADS | 7281 | BD | BD+24 2068 | Distance | 71.28 | Distance ly | 232.52 |
Period (P) | 3395.218y | ± 1537.5039 | Periastron (T) | 1500.7561y | ± 757.5483 | Semi-major axis (a) | 9.86671a | ± 4.37108 |
Eccentricity (e) | 0.78632 | ± 0.15608 | Inclination (i) | 69.468° | ± 9.975 | Longitude of periastron (ω) | 97.588° | ± 15.114 |
Node (Ω) | 172.468° | ± 107.435 | Notes | Reference | Izm2019 | |||
Equinox | Last observation | 2015 | Grade | 4 | (1=Definitive, 9=Indet.) |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|