18564+4530 JKA 16 BD

 
 
18h 56m 21.26s +45° 30' 53.1" P.A. 342.00 sep 550.0 mag 9.30,11.80 dist. 105.71 pc (344.83 l.y.)
 
 
Coord 2000 18564+4530 Discov num JKA  16 Comp BD Coord arcsec 2000 18 56 21.26 +45 30 53.1
Date first 1894 Date last 2015 Obs 10
Pa first 343 Pa last 341.8 P.A. Now (θ) 341.8°
Sep first 549.6 Sep last 550.036 Sep. Now (ρ) 550.036"
Mag pri 9.30 Mag sec 11.80 delta mag (ΔM) 2.5 Spectral class
Pri motion ra +023 Sec motion ra +029
Pri motion dec +060 Sec motion dec +065
Notes V W (Proper motion indicates physical, )
rPM=0.11 (< 0.3, Physical double)
This double is physical.
 
 
18564+4530 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 176071 47938 18 56 22 +45 30 25 HJ 1356 AB 2015 23 342 29.3 8.39 9.35 0.96
Show 47938 18 56 22 +45 30 25 RAO 92 AC 2016 3 292 3.6 8.20 15.00 6.80
Show 18 56 21 +45 30 53 JKA 16 BD 2015 10 342 550.0 9.30 11.80 2.50 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra HIP 92961 Tycho2 3541-02136-1 Gaia DR2 2106822131756841600
BD BD+45 2796 Distance 105.71 Distance ly 344.83