18003+5251 STF 2271 AC

 
 
18h 00m 18.74s +52° 51' 15.4" P.A. 17.00 sep 160.8 mag 8.17,12.98 Sp G0 dist. 60.42 pc (197.09 l.y.)
 
 
Coord 2000 18003+5251 Discov num STF2271 Comp AC Coord arcsec 2000 18 00 18.74 +52 51 15.4
Date first 1913 Date last 2015 Obs 7
Pa first 18 Pa last 17.4 P.A. Now (θ) 17.4°
Sep first 167.3 Sep last 160.803 Sep. Now (ρ) 160.803"
Mag pri 8.17 Mag sec 12.98 delta mag (ΔM) 4.81 Spectral class G0 (yellow)
Pri motion ra +032 Sec motion ra -002
Pri motion dec +069 Sec motion dec +009
Notes N (See Notes)
rPM=0.907
This double is not physical.
 
 
18003+5251 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 164874 30686 18 00 19 +52 51 15 STF 2271 AB 2019 105 267 3.5 8.17 9.24 1.07
Show 30686 18 00 19 +52 51 15 STF 2271 AC 2015 7 17 160.8 8.17 12.98 4.81 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco SAO 30686 HIP 88155 Tycho2 3903-01127-1
Gaia DR2 2125511797904547840 HD 164874 BD BD+52 2125 Distance 60.42
Distance ly 197.09