17157-1811 WHC  14AB

 
 
17H 15M 43.28S -18 10' 50.5" P.A. 291 SEP 1.2 MAG 9.62,9.70 SP A3II/III
 
 
Coord 2000
17157-1811
Discov num
WHC  14
Comp
AB
Coord arcsec 2000
17 15 43.28 -18 10 50.5
Date first
1884
Date last
2016
Obs
10
Pa first
292
Pa last
291
P.A. Now (θ)
291°
Sep first
1.3
Sep last
1.2
Sep. Now (ρ)
1.2"
Mag pri
9.62
Mag sec
9.70
delta mag (ΔM)
0.08
Spectral class
A3II/III (white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-009
Sec motion dec
-009
Notes
Nature of this double is uncertain.
 
 
17157-1811 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17157-1811 WHC 14 AB 1884 2016 10 291 1.2 9.62 9.70 0.08 <===
Show 17157-1811 HJ 4932 AC 1879 2016 11 227 10.5 9.62 10.60 0.98
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
Tycho2
6237-01091-1
HD
155992
last precise pa
291
last precise sep
1.203