18237+2146 STG 7 AC

18h 23m 41.85s +21° 46' 11.0" P.A. 84.00 sep 129.1 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 2012 Obs 4
Pa first 91 Pa last 83.6 P.A. Now (θ) 83.6°
Sep first 144.6 Sep last 129.08 Sep. Now (ρ) 129.08"
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 wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 86003 18 23 42 +21 46 11 TOK 60 Aa,Ab 2009 1 280 0.0 4.10 5.70 1.60
Show 109 Her 86003 18 23 42 +21 46 11 STT 587 AB 2012 12 323 238.0 3.98 11.06 7.08
Show 86003 18 23 42 +21 46 11 STG 7 AC 2012 4 84 129.1 3.98 13.10 9.12 <===


Quadruple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Var name NSV10742 Her Constellation Hercules SAO 86003 HIP 90139
Tycho2 1580-02158-1 Gaia DR2 4529285391531266304 HD 169414 HR 6895
GC 25116 BD BD+21 3411 Flamsteed 109 Herculis Flamsteed name 109 Her
FK5 690 Distance 36.47 Distance ly 118.97