18521+5120 STF 2416 AB (HD 175308)

 
 
18h 52m 08.85s +51° 19' 42.8" P.A. 157.00 sep 20.3 mag 8.67,11.17 Sp G0
 
 
Coord 2000 18521+5120 Discov num STF2416 Comp AB Coord arcsec 2000 18 52 08.85 +51 19 42.8
Date first 1830 Date last 2020 Obs 33
Pa first 157 Pa last 157.4 P.A. Now (θ) 157.4°
Sep first 15.6 Sep last 20.27 Sep. Now (ρ) 20.27"
Mag pri 8.67 Mag sec 11.17 delta mag (ΔM) 2.5 Spectral class G0 (yellow)
Pri motion ra -001 Sec motion ra +003
Pri motion dec +010 Sec motion dec -012
Notes U (Proper motion indicates non-physical)
rPM=1.808
This double is not physical.
 
 
18521+5120 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 175308 31225 18 52 09 +51 19 43 STF 2416 AB 2020 33 157 20.3 8.67 11.17 2.50 <===
Show 31225 18 52 09 +51 19 43 STF 2416 AC 2020 23 39 122.5 8.67 9.41 0.74
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 175308 Constellation Draco SAO 31225 Tycho2 3552-00143-1
Gaia DR2 2144476384916929280 HD 175308 GC 25912