20289+5655 TOB 187 AD

 
 
20h 28m 52.84s +56 55' 23.0" P.A. 189.00 sep 31.2 mag 9.73,11.80 Sp K0
 
 
Coord 2000 20289+5655 Discov num TOB 187 Comp AD Coord arcsec 2000 20 28 52.84 +56 55 23.0
Date first 1983 Date last 2015 Obs 10
Pa first 189 Pa last 188.7 P.A. Now (θ) 188.7°
Sep first 28.8 Sep last 31.217 Sep. Now (ρ) 31.217"
Mag pri 9.73 Mag sec 11.80 delta mag (ΔM) 2.07 Spectral class K0 (yellow-orange)
Pri motion ra +022 Sec motion ra -002
Pri motion dec +039 Sec motion dec +004
Notes
rPM=0.948
This double is not physical.
 
 
20289+5655 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 239426 32618 20 28 53 +56 55 23 STI 2535 AB 2016 16 227 13.6 9.73 10.57 0.84
Show 32618 20 28 53 +56 55 23 TOB 187 AC 2015 13 132 26.9 9.73 11.34 1.61
Show 32618 20 28 53 +56 55 23 TOB 187 AD 2015 10 189 31.2 9.73 11.80 2.07 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 32618 Tycho2 3958-00952-1 Gaia DR2 2187035044058553728
HD 239426