20135+3828 TDT 2103 AB (HD 228409)

 
 
20h 13m 32.32s +38 28' 23.4" P.A. 181.00 sep 1.1 mag 11.40,11.62 Sp A2
 
 
Coord 2000 20135+3828 Discov num TDT2103 Comp AB Coord arcsec 2000 20 13 32.32 +38 28 23.4
Date first 1991 Date last 1991 Obs 1
Pa first 181 Pa last 180.9 P.A. Now (θ) 180.9°
Sep first 1.1 Sep last 1.05 Sep. Now (ρ) 1.05"
Mag pri 11.40 Mag sec 11.62 delta mag (ΔM) 0.22 Spectral class A2 (white)
Pri motion ra +010 Sec motion ra +005
Pri motion dec +002 Sec motion dec +005
Notes
rPM=0.572
Nature of this double is uncertain.
 
 
20135+3828 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 228409 20 13 32 +38 28 23 TDT 2103 AB 1991 1 181 1.1 11.40 11.62 0.22 <===
Show 20 13 32 +38 28 23 ES 2121 AC 2016 5 233 3.5 11.40 12.80 1.40
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228409 Constellation Cygnus Tycho2 3151-02624-1 Gaia DR2 2061700785915482112
HD 228409 ADS 13549