18517+1331 STF 2409 AB (HD 174791)

 
 
18h 51m 43.74s +13° 31' 06.9" P.A. 22.00 sep 0.9 mag 8.46,9.64 Sp G5 dist. 261.1 pc (851.71 l.y.)
 
 
Coord 2000 18517+1331 Discov num STF2409 Comp AB Coord arcsec 2000 18 51 43.74 +13 31 06.9
Date first 1829 Date last 2015 Obs 48
Pa first 33 Pa last 21.6 P.A. Now (θ) 21.6°
Sep first 1.0 Sep last 0.94 Sep. Now (ρ) 0.94"
Mag pri 8.46 Mag sec 9.64 delta mag (ΔM) 1.18 Spectral class G5 (yellow)
Pri motion ra +012 Sec motion ra +012
Pri motion dec +000 Sec motion dec +000
Notes
Nature of this double is uncertain.
 
 
18517+1331 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 174791 104190 18 51 44 +13 31 07 STF 2409 AB 2015 48 22 0.9 8.46 9.64 1.18 <===
Show 104190 18 51 44 +13 31 07 STF 2409 AC 2015 13 196 33.8 8.46 12.96 4.50
Show 104190 18 51 44 +13 31 07 WAL 96 AB,D 2014 5 291 72.7 8.15 13.10 4.95
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 174791 Constellation Hercules SAO 104190 HIP 92565
Tycho2 1038-00509-1 Gaia DR2 4506988528369460992 HD 174791 GC 25877
ADS 11763 BD BD+13 3783 Distance 261.1 Distance ly 851.71