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
Cdsa2 id
DUN 252 AB
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
Ra deg
12.443316666666666
De deg
-63.09905555555556
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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