18381+3935 BU 50 AB

 
 
18h 38m 06.06s +39 35' 11.0" P.A. 3.00 sep 22.2 mag 9.50,14.00 Sp F
 
 
Coord 2000 18381+3935 Discov num BU   50 Comp AB Coord arcsec 2000 18 38 06.06 +39 35 11.0
Date first 1892 Date last 2020 Obs 15
Pa first 7 Pa last 3.3 P.A. Now (θ) 3.3°
Sep first 22.0 Sep last 22.247 Sep. Now (ρ) 22.247"
Mag pri 9.50 Mag sec 14.00 delta mag (ΔM) 4.5 Spectral class F (yellow-white)
Pri motion ra +006 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18381+3935 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 38 06 +39 35 11 BU 50 AB 2020 15 3 22.2 9.50 14.00 4.50 <===
Show 18 38 06 +39 35 11 BU 50 AC 2020 19 328 74.3 9.54 11.60 2.06
Show 18 38 06 +39 35 11 BU 50 AD 2020 11 327 68.1 9.54 11.60 2.06
Show 18 38 03 +39 36 14 BU 50 CD 2020 15 165 6.5 10.50 12.60 2.10
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3109-01895-1 Gaia DR2 2098072321301870720 ADS 11528