20021+5439 BU 427 CD

 
 
20h 02m 22.85s +54 40' 07.5" P.A. 336.00 sep 3.1 mag 8.39,10.18 Sp F2III
 
 
Coord 2000 20021+5439 Discov num BU  427 Comp CD Coord arcsec 2000 20 02 22.85 +54 40 07.5
Date first 1877 Date last 2011 Obs 15
Pa first 337 Pa last 336.2 P.A. Now (θ) 336.2°
Sep first 3.0 Sep last 3.097 Sep. Now (ρ) 3.097"
Mag pri 8.39 Mag sec 10.18 delta mag (ΔM) 1.79 Spectral class F2III (yellow-white)
Pri motion ra +001 Sec motion ra +000
Pri motion dec -006 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
 
 
Constellation Cygnus SAO 32226 Tycho2 3940-00754-1 Gaia DR2 2185778130468039424
HD 190464