17510+1213 STF 2231 AB

 
 
17h 51m 01.06s +12° 12' 48.2" P.A. 153.00 sep 32.3 mag 9.02,11.59 Sp K0 dist. 980.39 pc (3198.03 l.y.)
 
 
Coord 2000 17510+1213 Discov num STF2231 Comp AB Coord arcsec 2000 17 51 01.06 +12 12 48.2
Date first 1902 Date last 2015 Obs 13
Pa first 152 Pa last 152.6 P.A. Now (θ) 152.6°
Sep first 32.7 Sep last 32.324 Sep. Now (ρ) 32.324"
Mag pri 9.02 Mag sec 11.59 delta mag (ΔM) 2.57 Spectral class K0 (yellow-orange)
Pri motion ra -001 Sec motion ra +000
Pri motion dec +005 Sec motion dec +006
Notes
rPM=0.236 (< 0.3, Physical double)
This double is physical.
 
 
17510+1213 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 17 51 01 +12 12 48 STF 2231 AB 2015 13 153 32.3 9.02 11.59 2.57 <===
Show 17 51 01 +12 12 48 STF 2231 AC 2003 12 148 302.2 9.02 10.02 1.00
Show 17 51 12 +12 08 36 STF 2231 CD 2015 13 329 18.3 10.02 11.68 1.66
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus HIP 87358 Tycho2 1002-02034-1 Gaia DR2 4496123124399513984
BD BD+12 3308 Distance 980.39 Distance ly 3198.03