21492+5031 CTT 10 AD

 
 
21h 49m 14.48s +50° 30' 54.2" P.A. 104.00 sep 125.2 mag 7.77,11.37 Sp B9IV
 
 
Coord 2000 21492+5031 Discov num CTT  10 Comp AD Coord arcsec 2000 21 49 14.48 +50 30 54.2
Date first 1902 Date last 2018 Obs 10
Pa first 97 Pa last 103.6 P.A. Now (θ) 103.6°
Sep first 131.8 Sep last 125.168 Sep. Now (ρ) 125.168"
Mag pri 7.77 Mag sec 11.37 delta mag (ΔM) 3.6 Spectral class B9IV (blue-white)
Pri motion ra +005 Sec motion ra -001
Pri motion dec +000 Sec motion dec -007
Notes
rPM=1.304
This double is not physical.
 
 
21492+5031 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 207661 33781 21 49 14 +50 30 54 STF 2832 AB 2019 37 213 13.2 7.77 8.32 0.55
Show 21 49 14 +50 30 54 STF 2832 AC 2018 15 321 45.8 7.77 11.00 3.23
Show 21 49 14 +50 30 54 CTT 10 AD 2018 10 104 125.2 7.77 11.37 3.60 <===
Show 33781 21 49 14 +50 30 43 STF 2832 BC 2018 15 335 51.5 8.32 11.00 2.68
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3612-03061-1 Gaia DR2 1980519616178408320