14038-6022 VOU 31 AB (Hadar)
14h 03m 49.40s -60° 22' 22.9" P.A. 149.00 sep 0.3 mag 0.58,3.95 Sp B1III dist. 120.19 pc (392.06 l.y.)
| Coord 2000 |
14038-6022 |
|
Discov num |
VOU 31 |
|
Comp |
AB |
|
Coord arcsec 2000 |
14 03 49.40 -60 22 22.9 |
|
| Date first |
1935 |
|
Date last |
2021 |
|
Obs |
36 |
|
| Pa first |
257 |
|
Pa last |
149.4 |
|
P.A. Now (θ) |
149.4° |
|
| Sep first |
1.1 |
|
Sep last |
0.252 |
|
Sep. Now (ρ) |
0.252" |
|
| Mag pri |
0.58 |
|
Mag sec |
3.95 |
|
delta mag (ΔM) |
3.37 |
|
Spectral class |
B1III (blue-white) |
|
| Pri motion ra |
-034 |
|
Sec motion ra |
|
|
| Pri motion dec |
-025 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
14038-6022 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
252582 |
14 03 49 -60 22 23 |
RBT 1 Aa,Ab |
2021 |
54 |
345 |
0.0 |
1.29 |
1.44 |
0.15 |
Y |
|
| Show |
Hadar |
252582 |
14 03 49 -60 22 23 |
VOU 31 AB |
2021 |
36 |
149 |
0.3 |
0.58 |
3.95 |
3.37 |
Y |
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Hadar |
|
Constellation |
Centaurus |
|
SAO |
252582 |
|
HIP |
68702 |
|
| Tycho2 |
9005-03919-1 |
|
HD |
122451 |
|
HR |
5267 |
|
GC |
18971 |
|
| CP |
CP-59 5365 |
|
Bayer |
Beta Centauri |
|
Bayer name |
Bet Cen |
|
FK5 |
518 |
|
| Distance |
120.19 |
|
Distance ly |
392.06 |
|
Bayer greek |
β Cen |
|
| Other names |
Agena, Khadar |
|
ORBITAL ELEMENTS
| Period (P) | 182y | |
Periastron (T) | 2031.3y | |
Semi-major axis (a) | 0.788a | |
| Eccentricity (e) | 0.6 | |
Inclination (i) | 125.4° | |
Longitude of periastron (ω) | 171.8° | |
| Node (Ω) | 251.9° | |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
225.8 |
0.713 |
| 2001 |
224.7 |
0.692 |
| 2002 |
223.4 |
0.670 |
| 2003 |
222.1 |
0.648 |
| 2004 |
220.7 |
0.626 |
| 2005 |
219.2 |
0.603 |
| 2006 |
217.6 |
0.580 |
| 2007 |
215.8 |
0.557 |
| 2008 |
213.9 |
0.533 |
| 2009 |
211.8 |
0.509 |
| 2010 |
209.5 |
0.485 |
| 2011 |
207.0 |
0.461 |
| 2012 |
204.1 |
0.437 |
| 2013 |
201.0 |
0.413 |
| 2014 |
197.4 |
0.389 |
| 2015 |
193.5 |
0.366 |
| 2016 |
188.9 |
0.344 |
| 2017 |
183.8 |
0.323 |
| 2018 |
178.0 |
0.304 |
| 2019 |
171.5 |
0.287 |
| 2020 |
164.2 |
0.273 |
| 2021 |
156.2 |
0.262 |
| 2022 |
147.7 |
0.255 |
| 2023 |
138.8 |
0.252 |
| 2024 |
129.8 |
0.253 |
| 2025 |
121.0 |
0.257 |
| 2026 |
112.6 |
0.265 |
| 2027 |
104.8 |
0.274 |
| 2028 |
97.5 |
0.285 |
| 2029 |
90.8 |
0.295 |
| 2030 |
84.4 |
0.304 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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