12546-5711 DUN 126 AB (Mu1 Cru)

 
 
12h 54m 35.66s -57° 10' 40.4" P.A. 17.00 sep 34.5 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 2020 Obs 39
Pa first 10 Pa last 17.3 P.A. Now (θ) 17.3°
Sep first 35.9 Sep last 34.52 Sep. Now (ρ) 34.52"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Mu1 Cru 240366 12 54 36 -57 10 40 DUN 126 AB 2020 39 17 34.5 3.94 4.95 1.01 <===
Show 240367 12 54 37 -57 10 07 SHT 47 BC 2000 1 241 4.7 5.80 16.60 10.80
Show 240367 12 54 37 -57 10 07 SHT 47 BD 2000 1 333 5.0 5.80 16.30 10.50
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Mu1 Cru Constellation Crux SAO 240366 HIP 63003
Tycho2 8656-03488-1 Gaia DR2 6060547163653418112 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 Bayer greek μ1 Cru