20118+3936 COU 2415 AB (HD 228242)

 
 
20h 11m 50.16s +39 36' 28.3" P.A. 158.00 sep 0.4 mag 9.80,10.20 Sp B8III
 
 
Coord 2000 20118+3936 Discov num COU2415 Comp AB Coord arcsec 2000 20 11 50.16 +39 36 28.3
Date first 1987 Date last 2014 Obs 7
Pa first 138 Pa last 157.5 P.A. Now (θ) 157.5°
Sep first 0.3 Sep last 0.361 Sep. Now (ρ) 0.361"
Mag pri 9.80 Mag sec 10.20 delta mag (ΔM) 0.4 Spectral class B8III (blue-white)
Pri motion ra -002 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20118+3936 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 228242 20 11 50 +39 36 28 COU 2415 AB 2014 7 158 0.4 9.80 10.20 0.40 <===
Show 20 11 50 +39 36 28 ES 1973 AB,C 2011 2 352 4.1 10.60 12.80 2.20
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228242 Constellation Cygnus Tycho2 3155-02052-1 HD 228242