18189-1348 SNA  91Aa,Ab

 
 
18H 18M 56.19S -13 48' 31.1" P.A. 156 MAG 8.30,8.60 SP O8V DIST. 427.35 PC (1394.02 L.Y.)
 
 
Coord 2000
18189-1348
Discov num
SNA  91
Comp
Aa,Ab
Coord arcsec 2000
18 18 56.19 -13 48 31.1
Date first
2013
Date last
2013
Obs
1
Pa first
156
Pa last
156
P.A. Now (θ)
156°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
8.30
Mag sec
8.60
delta mag (ΔM)
0.3
Spectral class
O8V (blue)
Pri motion ra
+003
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
18189-1348 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161316 18189-1348 SNA 91 Aa,Ab 2013 2013 1 156 0.0 8.30 8.60 0.30 <===
Show 161316 18189-1348 HDS2590 AB 1991 1991 2 352 2.1 9.05 12.90 3.85
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Serpens
SAO
161316
HIP
89750
Tycho2
5689-01097-1
HD
168137
BD
BD-13 4932
Distance
427.35
Distance ly
1394.02
last precise pa
156
last precise sep
0.006