19575+2018 BU 425 AB (HD 189068)

 
 
19h 57m 32.28s +20 17' 40.1" P.A. 240.00 sep 1.4 mag 9.17,9.24 Sp B9 dist. 540.54 pc (1763.24 l.y.)
 
 
Coord 2000 19575+2018 Discov num BU  425 Comp AB Coord arcsec 2000 19 57 32.28 +20 17 40.1
Date first 1876 Date last 2016 Obs 58
Pa first 241 Pa last 239.6 P.A. Now (θ) 239.6°
Sep first 1.3 Sep last 1.438 Sep. Now (ρ) 1.438"
Mag pri 9.17 Mag sec 9.24 delta mag (ΔM) 0.07 Spectral class B9 (blue-white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec -006 Sec motion dec -006
Notes
Nature of this double is uncertain.
 
 
19575+2018 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 189068 19 57 32 +20 17 40 BU 425 AB 2016 58 240 1.4 9.17 9.24 0.07 <===
Show 19 57 32 +20 17 40 BU 425 AC 2015 14 40 22.0 9.17 12.61 3.44
Show 19 57 32 +20 17 40 BU 425 AD 2015 4 84 29.1 9.17 13.12 3.95
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189068 Constellation Sagitta HIP 98216 Tycho2 1624-00669-1
Gaia DR2 1823377444393685248 HD 189068 ADS 13165 BD BD+19 4221
Distance 540.54 Distance ly 1763.24