18237+2146 STG   7AC

 
 
18h 23m 41.85s +21 46' 11.0" P.A. 84 sep 130.6 mag 3.98,13.10 Sp K2.5IIIab dist. 36.47 pc (118.97 l.y.)
 
 
Coord 2000
18237+2146
Discov num
STG   7
Comp
AC
Coord arcsec 2000
18 23 41.85 +21 46 11.0
Date first
1923
Date last
2001
Obs
3
Pa first
91
Pa last
84
P.A. Now (θ)
84°
Sep first
144.6
Sep last
130.6
Sep. Now (ρ)
130.6"
Mag pri
3.98
Mag sec
13.10
delta mag (ΔM)
9.12
Spectral class
K2.5IIIab (yellow-orange)
Pri motion ra
+196
Sec motion ra
+007
Pri motion dec
-243
Sec motion dec
-010
Notes
N (See Notes)
rPM=0.961
This double is not physical.
 
 
18237+2146 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 86003 18237+2146 TOK 60 Aa,Ab 2009 2009 1 280 0.0 4.10 5.70 1.60
Show 109 Her 86003 18237+2146 STT 587 AB 1854 2001 11 323 237.2 3.98 11.06 7.08
Show 86003 18237+2146 STG 7 AC 1923 2001 3 84 130.6 3.98 13.10 9.12 <===
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
83.6
Precise sep
130.589
Constellation
Hercules
SAO
86003
HIP
90139
Tycho2
1580-02158-1
HD
169414
HR
6895
GC
25116
BD
BD+21 3411
Flamsteed
109 Herculis
Flamsteed name
109 He
Distance
36.47
Distance ly
118.97
last precise pa
83.6
last precise sep
130.589
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18237+2146 STG 7 AC 1923 1 91 144.6 3.97   K2.5IIIab 182341.88+214611.1
18237+2146 STG 7 AC 2000 2 83 130.8 3.98 13.10 K2.5IIIab D 182341.85+214611.0
18237+2146 STG 7 AC 2001 3 84 130.6 3.98 13.10 K2.5IIIab N D 182341.85+214611.0

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