12117+5050 STF 1609 AB (HD 105980)

 
 
12h 11m 41.76s +50° 50' 15.8" P.A. 204.00 sep 11.2 mag 7.98,9.55 Sp F2 dist. 184.84 pc (602.95 l.y.)
 
 
Coord 2000 12117+5050 Discov num STF1609 Comp AB Coord arcsec 2000 12 11 41.76 +50 50 15.8
Date first 1831 Date last 2017 Obs 29
Pa first 208 Pa last 204.1 P.A. Now (θ) 204.1°
Sep first 10.0 Sep last 11.22 Sep. Now (ρ) 11.22"
Mag pri 7.98 Mag sec 9.55 delta mag (ΔM) 1.57 Spectral class F2 (yellow-white)
Pri motion ra -016 Sec motion ra -017
Pri motion dec +019 Sec motion dec +021
Notes
rPM=0.083 (< 0.3, Physical double)
This double is physical.
 
 
12117+5050 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 105980 28290 12 11 42 +50 50 16 STF 1609 AB 2017 29 204 11.2 7.98 9.55 1.57 <===
Show 28290 12 11 42 +50 50 16 STF 1609 AC 2015 9 146 68.6 7.98 13.78 5.80
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 105980 Constellation Canes Venatici SAO 28290 HIP 59454
Tycho2 3457-00127-1 Gaia DR2 1548273317220940288 HD 105980 GC 16656
ADS 8454 BD BD+51 1734 Distance 184.84 Distance ly 602.95