21098+3504 ES 2257 BC

 
 
21h 09m 46.63s +35° 04' 20.7" P.A. 260.00 sep 5.5 mag 11.46,13.60
 
 
Coord 2000 21098+3504 Discov num ES 2257 Comp BC Coord arcsec 2000 21 09 46.63 +35 04 20.7
Date first 1926 Date last 2015 Obs 9
Pa first 271 Pa last 260.1 P.A. Now (θ) 260.1°
Sep first 4.2 Sep last 5.464 Sep. Now (ρ) 5.464"
Mag pri 11.46 Mag sec 13.60 delta mag (ΔM) 2.14 Spectral class
Pri motion ra +002 Sec motion ra -009
Pri motion dec +006 Sec motion dec +002
Notes
rPM=1.27
This double is not physical.
 
 
21098+3504 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 09 48 +35 04 22 ES 2257 AB 2015 12 268 15.2 11.29 11.46 0.17
Show 21 09 47 +35 04 21 ES 2257 BC 2015 9 260 5.5 11.46 13.60 2.14 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2710-00294-1 Gaia DR2 1867262733022876160