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
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
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.