18125-1522 LV    7AB

 
 
18H 12M 28.50S -15 22' 23.7" P.A. 272 SEP 3.4 MAG 8.15,11.14 SP B1/2II DIST. 854.7 PC (2788.03 L.Y.)
 
 
Coord 2000
18125-1522
Discov num
LV    7
Comp
AB
Coord arcsec 2000
18 12 28.50 -15 22 23.7
Date first
1892
Date last
1999
Obs
13
Pa first
278
Pa last
272
P.A. Now (θ)
272°
Sep first
3.8
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
8.15
Mag sec
11.14
delta mag (ΔM)
2.99
Spectral class
B1/2II (blue-white)
Pri motion ra
+008
Sec motion ra
-002
Pri motion dec
-005
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
18125-1522 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161181 18125-1522 LV 7 AB 1892 1999 13 272 3.4 8.15 11.14 2.99 <===
Show 161181 18125-1522 LV 7 AC 1905 2000 9 240 33.7 8.15 10.81 2.66
Show 161181 18125-1522 AOT 71 AB,D 1987 2000 4 153 18.8 8.15 14.20 6.05
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Serpens
SAO
161181
HIP
89223
Tycho2
6264-00483-1
HD
166716
BD
BD-15 4864
Distance
854.7
Distance ly
2788.03
last precise pa
272.2
last precise sep
3.39