Coord 2000 | 11286-4508 | Discov num | I 885 | Comp | AB | Coord arcsec 2000 | 11 28 37.32 -45 08 27.4 | ||||
Date first | 1910 | Date last | 2021 | Obs | 20 | ||||||
Pa first | 190 | Pa last | 145.7 | P.A. Now (θ) | 145.7° | ||||||
Sep first | 0.8 | Sep last | 0.619 | Sep. Now (ρ) | 0.619" | ||||||
Mag pri | 7.98 | Mag sec | 9.90 | delta mag (ΔM) | 1.92 | Spectral class | B0:III (blue-white) | ||||
Pri motion ra | -038 | Sec motion ra | -038 | ||||||||
Pri motion dec | -021 | Sec motion dec | -021 | ||||||||
Notes | O (Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 99804 | 222814 | 11 28 37 -45 08 27 | I 885 AB | 2021 | 20 | 146 | 0.6 | 7.98 | 9.90 | 1.92 | Y | <=== |
Show | 222814 | 11 28 37 -45 08 27 | TOK 280 AC | 2015 | 3 | 353 | 195.9 | 7.87 | 18.60 | 10.73 |
Name | HD 99804 | Constellation | Centaurus | SAO | 222814 | HIP | 56004 | ||||
Tycho2 | 8214-00439-1 | Gaia DR2 | 5375932022338269952 | HD | 99804 | CD | CD-44 7343 | ||||
CP | CP-44 5559 | Distance | 64.1 | Distance ly | 209.09 |
Period (P) | 650y | Periastron (T) | 2520y | Semi-major axis (a) | 1.69a | |||
Eccentricity (e) | 0.589 | Inclination (i) | 100.8° | Longitude of periastron (ω) | 118.5° | |||
Node (Ω) | 8.4° | Notes | Reference | USN2002 | ||||
Equinox | 2000 | Last observation | 1995 | Grade | 5 | (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 |
|