17303-4412 I  1005AB

 
 
17H 30M 15.41S -44 11' 47.9" P.A. 94 SEP 2.6 MAG 9.60,10.56 SP B9III
 
 
Coord 2000
17303-4412
Discov num
I  1005
Comp
AB
Coord arcsec 2000
17 30 15.41 -44 11 47.9
Date first
1910
Date last
1999
Obs
9
Pa first
100
Pa last
94
P.A. Now (θ)
94°
Sep first
2.8
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
9.60
Mag sec
10.56
delta mag (ΔM)
0.96
Spectral class
B9III (blue-white)
Pri motion ra
-027
Sec motion ra
+014
Pri motion dec
-004
Sec motion dec
+005
Notes
Nature of this double is uncertain.
 
 
17303-4412 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 228042 17303-4412 I 1005 AB 1910 1999 9 94 2.6 9.60 10.56 0.96 <===
Show 228042 17303-4412 I 1005 AC 1990 1999 3 101 32.7 9.60 13.49 3.89
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
SAO
228042
Tycho2
7896-02798-1
HD
158239
last precise pa
94.2
last precise sep
2.64