18457+3942 BU 51 AB

 
 
18h 45m 39.77s +39° 41' 59.6" P.A. 185.00 sep 74.2 mag 9.00,11.95 Sp M0
 
 
Coord 2000 18457+3942 Discov num BU   51 Comp AB Coord arcsec 2000 18 45 39.77 +39 41 59.6
Date first 1870 Date last 2015 Obs 19
Pa first 190 Pa last 185 P.A. Now (θ) 185°
Sep first 90.0 Sep last 74.22 Sep. Now (ρ) 74.22"
Mag pri 9.00 Mag sec 11.95 delta mag (ΔM) 2.95 Spectral class M0 (red)
Pri motion ra -001 Sec motion ra -003
Pri motion dec -001 Sec motion dec +004
Notes
rPM=1.077
This double is not physical.
 
 
18457+3942 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 45 40 +39 41 60 BU 51 AB 2015 19 185 74.2 9.00 11.95 2.95 <===
Show 18 45 39 +39 40 46 BU 51 BC 2015 17 297 6.0 11.95 12.90 0.95
Show 18 45 39 +39 40 46 FYM 51 BD 2015 7 344 34.6 11.95 15.60 3.65
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3122-01170-1 Gaia DR2 2098229139147976704 ADS 11668