18238+5139 ES  187AC

 
 
18h 23m 45.03s +51 38' 55.8" P.A. 127 sep 91.2 mag 9.32,10.33 Sp G5 dist. 61.31 pc (199.99 l.y.)
 
 
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
2015
Obs
18
Pa first
115
Pa last
127
P.A. Now (θ)
127°
Sep first
82.5
Sep last
91.2
Sep. Now (ρ)
91.2"
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_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
 
 
Precise pa
127.2
Precise sep
91.15
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
127.2
last precise sep
91.15
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18238+5139 ES 187 AC 2004 15 125 89.9 9.32 10.33 D 182345.03+513855.8
18238+5139 ES 187 AC 2015 18 127 91.2 9.32 10.33 G5 N 182345.03+513855.8

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