18242-1935 BU 49 AB (HD 169174)

 
 
18h 24m 09.30s -19° 34' 37.4" P.A. 45.00 sep 8.2 mag 7.97,11.30 Sp B8III
 
 
Coord 2000 18242-1935 Discov num BU   49 Comp AB Coord arcsec 2000 18 24 09.30 -19 34 37.4
Date first 1871 Date last 2015 Obs 19
Pa first 40 Pa last 45.3 P.A. Now (θ) 45.3°
Sep first 7.0 Sep last 8.154 Sep. Now (ρ) 8.154"
Mag pri 7.97 Mag sec 11.30 delta mag (ΔM) 3.33 Spectral class B8III (blue-white)
Pri motion ra +001 Sec motion ra +010
Pri motion dec -011 Sec motion dec +001
Notes
rPM=1.358
This double is not physical.
 
 
18242-1935 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 169174 161426 18 24 09 -19 34 37 BU 49 AB 2015 19 45 8.2 7.97 11.30 3.33 <===
Show 161426 18 24 09 -19 34 37 BU 49 AC 2015 6 304 22.4 7.97 12.50 4.53
Show 161426 18 24 09 -19 34 37 BU 49 AD 2015 7 149 23.4 7.97 11.70 3.73
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 169174 Constellation Sagittarius SAO 161426 Tycho2 6274-00524-1
Gaia DR2 4093002235739062784 HD 169174