15471-5107 B  1790AB

 
 
15h 47m 05.20s -51 07' 13.2" P.A. 84 sep 0.4 mag 9.90,10.10 Sp B9/9.5V
 
 
Coord 2000
15471-5107
Discov num
B  1790
Comp
AB
Coord arcsec 2000
15 47 05.20 -51 07 13.2
Date first
1931
Date last
2014
Obs
9
Pa first
100
Pa last
84
P.A. Now (θ)
84°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.90
Mag sec
10.10
delta mag (ΔM)
0.2
Spectral class
B9/9.5V (blue-white)
Pri motion ra
-008
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
15471-5107 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 242964 15471-5107 B 1790 AB 1931 2014 9 84 0.4 9.90 10.10 0.20 <===
Show 242964 15471-5107 WSI 83 Ba,Bb 2008 2014 6 221 0.1 10.70 11.10 0.40
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
83.6
Precise sep
0.426
Constellation
Norma
SAO
242964
Tycho2
8321-00709-1
HD
140662
last precise pa
83.6
last precise sep
0.426
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15471-5107 B 1790 AB 1991 2 92 0.4 9.90 10.10 B9/9.5V 154705.20-510713.2
15471-5107 B 1790 AB 2009 4 84 0.4 9.90 10.10 B9/9.5V 154705.20-510713.2
15471-5107 B 1790 AB 2010 5 90 0.3 9.90 10.10 B9/9.5V 154705.20-510713.2
15471-5107 B 1790 AB 2012 6 84 0.4 9.90 10.10 B9/9.5V 154705.20-510713.2
15471-5107 B 1790 AB 2013 8 84 0.4 9.90 10.10 B9/9.5V 154705.20-510713.2
15471-5107 B 1790 AB 2014 9 84 0.4 9.90 10.10 B9/9.5V 154705.20-510713.2

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