18238+5139 ES  187AB

 
 
18H 23M 45.03S +51 38' 55.8" P.A. 207 SEP 2.5 MAG 9.32,9.43 SP G5 DIST. 61.31 PC (199.99 L.Y.)
 
 
Coord 2000
18238+5139
Discov num
ES  187
Comp
AB
Coord arcsec 2000
18 23 45.03 +51 38 55.8
Date first
1903
Date last
2015
Obs
28
Pa first
199
Pa last
207
P.A. Now (θ)
207°
Sep first
2.7
Sep last
2.5
Sep. Now (ρ)
2.5"
Mag pri
9.32
Mag sec
9.43
delta mag (ΔM)
0.11
Spectral class
G5 (yellow)
Pri motion ra
+057
Sec motion ra
+047
Pri motion dec
+147
Sec motion dec
+132
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18238+5139 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30942 18238+5139 ES 187 AB 1903 2015 28 207 2.5 9.32 9.43 0.11 <===
Show 30942 18238+5139 ES 187 AC 1864 2015 18 127 91.2 9.32 10.33 1.01
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
30942
HIP
90141
Tycho2
3538-02027-1
HD
169816
BD
BD+51 2372
Distance
61.31
Distance ly
199.99
last precise pa
207
last precise sep
2.54