18399-2531 ARG 32 AC

18h 39m 52.28s -25° 30' 16.5" P.A. 285.00 sep 53.2 mag 8.60,8.84 Sp A0 dist. 227.27 pc (741.35 l.y.)

Coord 2000 18399-2531 Discov num ARG  32 Comp AC Coord arcsec 2000 18 39 52.28 -25 30 16.5
Date first 1862 Date last 2018 Obs 17
Pa first 285 Pa last 284.9 P.A. Now (θ) 284.9°
Sep first 68.7 Sep last 53.217 Sep. Now (ρ) 53.217"
Mag pri 8.60 Mag sec 8.84 delta mag (ΔM) 0.24 Spectral class A0 (white)
Pri motion ra +000 Sec motion ra +002
Pri motion dec -012 Sec motion dec -005
Notes U Z (Proper motion indicates non-physical, Parallax indicates components are physical)




rPM=0.607

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

Constellation Sagittarius SAO 187106 HIP 91515 Tycho2 6862-01144-1
Gaia DR2 4076337590788231040 HD 172178 GC 25509 CD CD-2513318
CP CP-25 6580 Distance 227.27 Distance ly 741.35