20490+2932 BRT 51 BC

 
 
20h 48m 57.23s +29° 32' 17.1" P.A. 128.00 sep 4.6 mag 10.60,11.80
 
 
Coord 2000 20490+2932 Discov num BRT  51 Comp BC Coord arcsec 2000 20 48 57.23 +29 32 17.1
Date first 1894 Date last 2015 Obs 7
Pa first 121 Pa last 127.5 P.A. Now (θ) 127.5°
Sep first 5.7 Sep last 4.562 Sep. Now (ρ) 4.562"
Mag pri 10.60 Mag sec 11.80 delta mag (ΔM) 1.2 Spectral class
Pri motion ra -018 Sec motion ra
Pri motion dec +168 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20490+2932 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 335167 89164 20 48 57 +29 32 10 BRT 51 AB 2018 10 355 6.9 9.20 10.60 1.40
Show 89164 20 48 57 +29 32 10 BRT 51 AC 2018 8 37 5.1 9.20 11.80 2.60
Show 20 48 57 +29 32 17 BRT 51 BC 2015 7 128 4.6 10.60 11.80 1.20 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1858269763011419648