18532-1121 A 1889 A,BC (HD 174887)

18h 53m 14.67s -11° 21' 02.6" P.A. 32.00 sep 61.5 mag 8.36,11.13 Sp B9 dist. 240.96 pc (786.01 l.y.)

Coord 2000 18532-1121 Discov num A  1889 Comp A,BC Coord arcsec 2000 18 53 14.67 -11 21 02.6
Date first 1907 Date last 2015 Obs 12
Pa first 32 Pa last 31.5 P.A. Now (θ) 31.5°
Sep first 61.8 Sep last 61.485 Sep. Now (ρ) 61.485"
Mag pri 8.36 Mag sec 11.13 delta mag (ΔM) 2.77 Spectral class B9 (blue-white)
Pri motion ra -005 Sec motion ra -005
Pri motion dec +017 Sec motion dec +016
Notes




rPM=0.056 (< 0.3, Physical double)

This double is physical.



18532-1121 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 174887 161939 18 53 15 -11 21 03 A 1889 A,BC 2015 12 32 61.5 8.36 11.13 2.77 <===
Show 18 53 17 -11 20 10 A 1889 BC 2015 4 119 0.8 11.70 12.00 0.30


Triple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 174887 Constellation Scutum SAO 161939 HIP 92695
Tycho2 5701-00074-1 Gaia DR2 4202141134262847232 HD 174887 BD BD-11 4795
Distance 240.96 Distance ly 786.01