12546-5711 DUN 126AB (Mu1 Cru)

 
 
12h 54m 35.66s -57 10' 40.4" P.A. 17 sep 34.9 mag 3.94,4.95 Sp B2IV-V dist. 127.06 pc (414.47 l.y.)
 
 
Coord 2000
12546-5711
Discov num
DUN 126
Comp
AB
Coord arcsec 2000
12 54 35.66 -57 10 40.4
Date first
1826
Date last
2016
Obs
36
Pa first
10
Pa last
17
P.A. Now (θ)
17°
Sep first
35.9
Sep last
34.9
Sep. Now (ρ)
34.9"
Mag pri
3.94
Mag sec
4.95
delta mag (ΔM)
1.01
Spectral class
B2IV-V (blue-white)
Pri motion ra
-031
Sec motion ra
-033
Pri motion dec
-013
Sec motion dec
-011
Notes
N Z (See Notes, Parallax indicates components are physical)
rPM=0.081 (< 0.3, Physical double)
This double is physical.
 
 
12546-5711 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Mu1 Cru 240366 12546-5711 DUN 126 AB 1826 2016 36 17 34.9 3.94 4.95 1.01 <===
Show 240367 12546-5711 SHT 47 BC 2000 2000 1 241 4.7 5.80 16.60 10.80
Show 240367 12546-5711 SHT 47 BD 2000 2000 1 333 5.0 5.80 16.30 10.50
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
16.6
Precise sep
34.89
Name
Mu1 Cru
Cdsa2 id
DUN 126 AB
Constellation
Crux
SAO
240366
HIP
63003
Tycho2
8656-03488-1
HD
112092
HR
4898
GC
17512
CP
CP-56 5487
Bayer
Mu 1 Crucis
Bayer name
Mu1 Cru
Ra deg
12.909905555555556
De deg
-57.17788888888889
Distance
127.06
Distance ly
414.47
last precise pa
16.6
last precise sep
34.89
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12546-5711 DUN 126 AB 2007 31 17 34.6 3.94 4.95 B2IV-V N D 125435.66-571040.4
12546-5711 DUN 126 AB 2010 32 16 34.8 3.94 4.95 B2IV-V N D 125435.66-571040.4
12546-5711 DUN 126 AB 2011 34 24 36.6 3.94 4.95 B2IV-V N D 125435.66-571040.4
12546-5711 DUN 126 AB 2016 36 17 34.9 3.94 4.95 B2IV-V NZ 125435.66-571040.4

If you need more information about this double, apply for a data request form to the WDS.