19551+3012 WAL 121 AD

 
 
19h 55m 06.50s +30 11' 41.6" P.A. 145.00 sep 54.8 mag 6.63,12.21 Sp B6V dist. 262.47 pc (856.18 l.y.)
 
 
Coord 2000 19551+3012 Discov num WAL 121 Comp AD Coord arcsec 2000 19 55 06.50 +30 11 41.6
Date first 1944 Date last 2015 Obs 5
Pa first 160 Pa last 144.5 P.A. Now (θ) 144.5°
Sep first 50.0 Sep last 54.75 Sep. Now (ρ) 54.75"
Mag pri 6.63 Mag sec 12.21 delta mag (ΔM) 5.58 Spectral class B6V (blue-white)
Pri motion ra +003 Sec motion ra -004
Pri motion dec -004 Sec motion dec -005
Notes
rPM=1.104
This double is not physical.
 
 
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
 
 
Constellation Cygnus SAO 69079 HIP 98017 Tycho2 2669-05015-1
Gaia DR2 2030389993316732288 HD 188651 HR 7607 ADS 13117
BD BD+29 3802 Distance 262.47 Distance ly 856.18