17166+2635 STF 2145 AB,C (HD 156454)

 
 
17h 16m 36.51s +26° 34' 47.2" P.A. 184.00 sep 19.0 mag 8.87,10.55 Sp G5 dist. 201.21 pc (656.35 l.y.)
 
 
Coord 2000 17166+2635 Discov num STF2145 Comp AB,C Coord arcsec 2000 17 16 36.51 +26 34 47.2
Date first 1830 Date last 2019 Obs 64
Pa first 174 Pa last 183.7 P.A. Now (θ) 183.7°
Sep first 9.8 Sep last 18.997 Sep. Now (ρ) 18.997"
Mag pri 8.87 Mag sec 10.55 delta mag (ΔM) 1.68 Spectral class G5 (yellow)
Pri motion ra -014 Sec motion ra -027
Pri motion dec +000 Sec motion dec -050
Notes N L (See Notes, Linear solution)
rPM=0.909
This double is not physical.
 
 
17166+2635 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 84967 17 16 37 +26 34 47 WHC 15 AB 2012 34 63 0.1 9.40 9.70 0.30
Show HD 156454 17 16 37 +26 34 47 STF 2145 AB,C 2019 64 184 19.0 8.87 10.55 1.68 <===
Show 17 16 37 +26 34 47 WHC 15 AB,D 2015 16 324 121.6 8.87 10.27 1.40
Show 17 16 36 +26 34 29 WHC 15 CD 2015 16 329 136.5 10.55 10.27 0.28
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 156454 Constellation Hercules HIP 84513 Tycho2 2069-02324-1
Gaia DR2 4573877116380632832 HD 156454 BD BD+26 2990 Distance 201.21
Distance ly 656.35