14396-6050 RHD   1AB (Rigel kent)

 
 
14h 39m 36.50s -60 50' 02.3" P.A. 327.1 sep 4.46 mag -0.01,1.33 Sp G2V+K1V dist. 1.32 pc (4.31 l.y.)
 
 
Coord 2000
14396-6050
Discov num
RHD   1
Comp
AB
Coord arcsec 2000
14 39 36.50 -60 50 02.3
Date first
1752
Date last
2016
Obs
458
Pa first
218
Pa last
313
P.A. Now (θ)
327.1°
Sep first
20.5
Sep last
4.1
Sep. Now (ρ)
4.46"
Mag pri
-0.01
Mag sec
1.33
delta mag (ΔM)
1.34
Spectral class
G2V+K1V (yellow/yellow-orange)
Pri motion ra
-368
Sec motion ra
Pri motion dec
+047
Sec motion dec
Notes
N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
14396-6050 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Rigel kent 252838 14396-6050 RHD 1 AB 1752 2016 458 327 4.5 -0.01 1.33 1.34 Y <===
Show 252838 14396-6050 LDS 494 AC 1920 2000 3 212 999.9 0.14 12.70 12.56
Show 14396-6050 SCZ 1 Ca,Cb 1996 1996 2 100 0.3 11.10 18.00 6.90
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
312.9
Precise sep
4.11
Common name
Rigel kent
Meaning
foot of the centaur
Other names
RIGEL KENTAURUS, TOLIMAN
Cdsa2 id
RHD 1 AB
Constellation
Centaurus
SAO
252838
HIP
71683
HD
128620
HR
5459
GC
19728
GL
Gl 559A
Bayer
Alpha Centauri
Bayer name
Alp Cen
Ra deg
14.66013888888889
De deg
-60.83397222222222
Distance
1.32
Distance ly
4.31
last precise pa
312.9
last precise sep
4.11
 
 
ORBITAL ELEMENTS
 
 
Period (P)79.91y± 0.013 Periastron (T)1955.66y± 0.014 Semi-major axis (a)17.66a± 0.026
Eccentricity (e)0.524± 0.0011 Inclination (i)79.32°± 0.044 Longitude of periastron (ω)232.3°± 0.11
Node (Ω)204.75°± 0.087 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 14.161 222.3
2001 13.472 223.4
2002 12.765 224.7
2003 12.041 226.2
2004 11.303 227.8
2005 10.554 229.7
2006 9.797 231.8
2007 9.036 234.3
2008 8.276 237.3
2009 7.525 240.8
2010 6.792 245.2
2011 6.092 250.5
2012 5.443 257.2
2013 4.874 265.6
2014 4.421 276.0
2015 4.129 288.2
2016 4.034 301.6
2017 4.151 315.0
2018 4.460 327.1
2019 4.920 337.2
2020 5.486 345.4
2021 6.116 352.1
2022 6.780 357.4
2023 7.451 1.8
2024 8.109 5.5
2025 8.731 8.6
2026 9.296 11.3
2027 9.781 13.8
2028 10.157 16.0
2029 10.392 18.1
2030 10.444 20.1

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds14396-6050c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
14396-6050 RHD 1 AB 2007 438 236 8.8 0.14 1.24 G2V K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2008 442 240 7.8 0.14 1.24 G2V K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2009 443 244 7.0 0.14 1.24 G2V K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2012 444 255 5.0 0.14 1.24 G2V K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2013 446 263 5.1 -0.01 1.33 G2V+K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2014 447 279 4.3 -0.01 1.33 G2V+K1V NODP 143940.90-605006.5
14396-6050 RHD 1 AB 2016 458 313 4.1 -0.01 1.33 G2V+K1V NO P 143936.50-605002.3

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