17538-3447 TDT 562Ba,Bb

 
 
17H 53M 44.13S -34 47' 39.7" P.A. 157 SEP 0.5 MAG 7.49,7.81 SP B9V
 
 
Coord 2000
17538-3447
Discov num
TDT 562
Comp
Ba,Bb
Coord arcsec 2000
17 53 44.13 -34 47 39.7
Date first
1991
Date last
1991
Obs
1
Pa first
157
Pa last
157
P.A. Now (θ)
157°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
7.49
Mag sec
7.81
delta mag (ΔM)
0.32
Spectral class
B9V (blue-white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-005
Sec motion dec
-005
Notes
Nature of this double is uncertain.
 
 
17538-3447 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 209425 17538-3447 WFC 201 AB 1911 2000 9 209 34.7 6.27 6.98 0.71
Show 17538-3447 TDT 562 Ba,Bb 1991 1991 1 157 0.5 7.49 7.81 0.32 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
Tycho2
7386-00463-1
HD
162679
last precise pa
157.2
last precise sep
0.48