20021+5439 BU 426 AB (HD 190398)

 
 
20h 02m 07.92s +54 38' 28.0" P.A. 306.00 sep 5.9 mag 8.53,10.50 Sp K0
 
 
Coord 2000 20021+5439 Discov num BU  426 Comp AB Coord arcsec 2000 20 02 07.92 +54 38 28.0
Date first 1877 Date last 2016 Obs 25
Pa first 310 Pa last 305.9 P.A. Now (θ) 305.9°
Sep first 5.8 Sep last 5.858 Sep. Now (ρ) 5.858"
Mag pri 8.53 Mag sec 10.50 delta mag (ΔM) 1.97 Spectral class K0 (yellow-orange)
Pri motion ra +016 Sec motion ra +000
Pri motion dec +018 Sec motion dec +000
Notes N (See Notes)
rPM=1
This double is not physical.
 
 
20021+5439 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 190398 20 02 08 +54 38 28 BU 426 AB 2016 25 306 5.9 8.53 10.50 1.97 <===
Show 32226 20 02 08 +54 38 28 BU 426 AC 2015 17 53 163.2 8.53 8.39 0.14
Show 32226 20 02 23 +54 40 08 BU 427 CD 2011 15 336 3.1 8.39 10.18 1.79
Show 32226 20 02 23 +54 40 08 ENG 68 CE 2015 13 158 160.3 8.39 8.92 0.53
Show 32230 20 02 30 +54 37 39 MLR 580 EF 2008 3 159 0.6 8.90 13.20 4.30
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190398 Constellation Cygnus Tycho2 3940-00110-1 Gaia DR2 2185777855590109312
HD 190398