18399-2531 ARG 32 AB (HD 172193)

 
 
18h 39m 52.28s -25° 30' 16.5" P.A. 220.00 sep 7.0 mag 8.60,9.10 Sp A0 dist. 73.53 pc (239.85 l.y.)
 
 
Coord 2000 18399-2531 Discov num ARG  32 Comp AB Coord arcsec 2000 18 39 52.28 -25 30 16.5
Date first 1862 Date last 2018 Obs 21
Pa first 213 Pa last 219.5 P.A. Now (θ) 219.5°
Sep first 7.5 Sep last 7.032 Sep. Now (ρ) 7.032"
Mag pri 8.60 Mag sec 9.10 delta mag (ΔM) 0.5 Spectral class A0 (white)
Pri motion ra +000 Sec motion ra +003
Pri motion dec -012 Sec motion dec -002
Notes
rPM=0.87
This double is not physical.
 
 
18399-2531 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 187106 18 39 52 -25 30 16 OCC 9182 Aa,Ab 1972 0 -1 0.8 8.90 8.20 0.70
Show HD 172193 187106 18 39 52 -25 30 16 ARG 32 AB 2018 21 220 7.0 8.60 9.10 0.50 <===
Show 187106 18 39 52 -25 30 16 ARG 32 AC 2018 17 285 53.2 8.60 8.84 0.24
Show 187106 18 39 52 -25 30 16 ARG 32 AD 2015 6 217 80.2 8.60 11.33 2.73
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 172193 Constellation Sagittarius SAO 187106 HIP 91524
Tycho2 6862-01144-1 Gaia DR2 4076337590788231040 HD 172193 GC 25510
CD CD-2513320 CP CP-25 6581 Distance 73.53 Distance ly 239.85