19551+3012 STT 390 AB (HD 188651)

 
 
19h 55m 06.50s +30 11' 41.6" P.A. 22.00 sep 9.6 mag 6.63,9.50 Sp B6V+A5V dist. 262.47 pc (856.18 l.y.)
 
 
Coord 2000 19551+3012 Discov num STT 390 Comp AB Coord arcsec 2000 19 55 06.50 +30 11 41.6
Date first 1849 Date last 2015 Obs 33
Pa first 23 Pa last 22 P.A. Now (θ) 22°
Sep first 9.6 Sep last 9.557 Sep. Now (ρ) 9.557"
Mag pri 6.63 Mag sec 9.50 delta mag (ΔM) 2.87 Spectral class B6V+A5V (blue-white/white)
Pri motion ra +005 Sec motion ra +005
Pri motion dec +001 Sec motion dec +001
Notes
Nature of this double is uncertain.
 
 
19551+3012 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 188651 69079 19 55 06 +30 11 42 STT 390 AB 2015 33 22 9.6 6.63 9.50 2.87 <===
Show 69079 19 55 06 +30 11 42 STT 390 AC 2015 17 176 15.8 6.63 11.23 4.60
Show 69079 19 55 06 +30 11 42 WAL 121 AD 2015 5 145 54.8 6.63 12.21 5.58
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188651 Constellation Cygnus SAO 69079 HIP 98017
Tycho2 2669-05015-1 Gaia DR2 2030389993316732288 HD 188651 HR 7607
GC 27592 ADS 13117 BD BD+29 3802 Distance 262.47
Distance ly 856.18