18168-2500 BU  285CE

 
 
18H 16M 53.00S -25 01' 06.2" P.A. 114 SEP 30.2 MAG 9.89,11.35 SP A0
 
 
Coord 2000
18168-2500
Discov num
BU  285
Comp
CE
Coord arcsec 2000
18 16 53.00 -25 01 06.2
Date first
1893
Date last
2000
Obs
5
Pa first
116
Pa last
114
P.A. Now (θ)
114°
Sep first
30.7
Sep last
30.2
Sep. Now (ρ)
30.2"
Mag pri
9.89
Mag sec
11.35
delta mag (ΔM)
1.46
Spectral class
A0 (white)
Pri motion ra
+005
Sec motion ra
+009
Pri motion dec
-011
Sec motion dec
-013
Notes
rPM=0.283 (< 0.3, Physical double)
This double is physical.
 
 
18168-2500 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18168-2500 BU 285 AB 1874 2008 14 134 1.6 9.15 10.70 1.55
Show 18168-2500 BU 285 AC 1874 2000 15 141 60.2 9.15 9.89 0.74
Show 186580 18168-2500 BU 285 CD 1874 1943 9 17 1.9 9.89 11.40 1.51
Show 186580 18168-2500 BU 285 CE 1893 2000 5 114 30.2 9.89 11.35 1.46 <===
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
186580
Tycho2
6848-01062-1
HD
167574
last precise pa
113.8
last precise sep
30.15