18168-2500 BU 285 CE

 
 
18h 16m 53.00s -25° 01' 06.2" P.A. 113.00 sep 30.0 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 2015 Obs 6
Pa first 116 Pa last 113.2 P.A. Now (θ) 113.2°
Sep first 30.7 Sep last 30.048 Sep. Now (ρ) 30.048"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 167550 18 16 50 -25 00 20 BU 285 AB 2016 16 313 1.6 9.15 10.70 1.55
Show 186580 18 16 50 -25 00 20 BU 285 AC 2015 16 142 59.7 9.15 9.89 0.74
Show 186580 18 16 53 -25 01 06 BU 285 CD 2016 11 16 2.1 9.89 11.40 1.51
Show 186580 18 16 53 -25 01 06 BU 285 CE 2015 6 113 30.0 9.89 11.35 1.46 <===
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagittarius SAO 186580 Tycho2 6848-01062-1 Gaia DR2 4065175417493420800
HD 167574