12266-6306 DUN 252AB (Acrux)

 
 
12h 26m 35.94s -63 05' 56.6" P.A. 112 sep 4.2 mag 1.25,1.55 Sp B1V dist. 98.72 pc (322.02 l.y.)
 
 
Coord 2000
12266-6306
Discov num
DUN 252
Comp
AB
Coord arcsec 2000
12 26 35.94 -63 05 56.6
Date first
1826
Date last
2016
Obs
100
Pa first
114
Pa last
112
P.A. Now (θ)
112°
Sep first
5.4
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
1.25
Mag sec
1.55
delta mag (ΔM)
0.3
Spectral class
B1V (blue-white)
Pri motion ra
-035
Sec motion ra
-043
Pri motion dec
-015
Sec motion dec
-008
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.243 (< 0.3, Physical double)
This double is not physical.
 
 
12266-6306 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Acrux 251904 12266-6306 DUN 252 AB 1826 2016 100 112 4.2 1.25 1.55 0.30 <===
Show 251904 12266-6306 DUN 252 AC 1750 2016 33 202 90.1 1.25 4.80 3.55
Show 251904 12266-6306 ANT 1 AG 2000 2014 5 145 58.7 1.25 12.00 10.75
Show 251904 12266-6306 ANT 1 AH 2007 2013 3 167 47.3 1.25 13.00 11.75
Show 251904 12266-6306 ANT 1 AI 2000 2013 4 227 63.3 1.25 12.00 10.75
Show 251904 12266-6306 ANT 7 AJ 2000 2010 2 344 29.6 1.25 12.00 10.75
Show 251904 12266-6306 ANT 7 AK 2000 2010 2 218 125.2 1.25 13.00 11.75
Show 251904 12266-6306 DUN 252 BC 1826 2008 17 205 90.6 1.55 4.80 3.25
Show 251903 12266-6306 TOK 7 CD 1997 2000 2 53 2.4 5.40 10.50 5.10
Show 251903 12266-6306 TOK 7 CE 1997 1997 1 214 4.9 5.40 17.00 11.60
Show 251903 12266-6306 TOK 7 CF 1997 1997 1 119 6.7 5.40 15.97 10.57
11-fold system
11 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
112
Precise sep
4.2
Common name
Acrux
Constellation
Crux
SAO
251904
HIP
60718
Tycho2
8979-03464-1
HD
108248
HR
4730
GC
16952
CP
CP-62 2745
Bayer
Alpha 1 Crucis
Bayer name
Alp1 Cru
Distance
98.72
Distance ly
322.02
last precise pa
112
last precise sep
4.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12266-6306 DUN 252 AB 2007 89 114 4.0 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2010 91 112 4.0 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2012 92 111 3.6 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2013 94 112 3.9 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2014 95 112 4.0 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2015 97 112 3.9 1.25 1.55 B1V NOD 122635.94-630556.6
12266-6306 DUN 252 AB 2016 100 112 4.2 1.25 1.55 B1V NU 122635.94-630556.6

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