18238+5139 ES 187 AC

 
 
18h 23m 45.03s +51° 38' 55.8" P.A. 124.00 sep 91.3 mag 9.32,10.33 Sp G5
 
 
Coord 2000 18238+5139 Discov num ES  187 Comp AC Coord arcsec 2000 18 23 45.03 +51 38 55.8
Date first 1864 Date last 2016 Obs 19
Pa first 115 Pa last 124.1 P.A. Now (θ) 124.1°
Sep first 82.5 Sep last 91.29 Sep. Now (ρ) 91.29"
Mag pri 9.32 Mag sec 10.33 delta mag (ΔM) 1.01 Spectral class G5 (yellow)
Pri motion ra +057 Sec motion ra +023
Pri motion dec +147 Sec motion dec +000
Notes N (See Notes)
rPM=0.957
This double is not physical.
 
 
18238+5139 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 169816 30942 18 23 45 +51 38 56 ES 187 AB 2018 31 206 2.5 9.32 9.43 0.11
Show 30942 18 23 45 +51 38 56 ES 187 AC 2016 19 124 91.3 9.32 10.33 1.01 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30942 Tycho2 3538-02027-1 Gaia DR2 2124268868729815936