16573+8651 STT 340AB

 
 
16h 57m 18.06s +86 50' 40.1" P.A. 221 sep 31.3 mag 8.40,9.25 Sp F2 dist. 109.53 pc (357.29 l.y.)
 
 
Coord 2000
16573+8651
Discov num
STT 340
Comp
AB
Coord arcsec 2000
16 57 18.06 +86 50 40.1
Date first
1847
Date last
2010
Obs
31
Pa first
237
Pa last
221
P.A. Now (θ)
221°
Sep first
31.5
Sep last
31.3
Sep. Now (ρ)
31.3"
Mag pri
8.40
Mag sec
9.25
delta mag (ΔM)
0.85
Spectral class
F2 (yellow-white)
Pri motion ra
-032
Sec motion ra
-031
Pri motion dec
+056
Sec motion dec
+055
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.022 (< 0.3, Physical double)
This double is physical.
 
 
16573+8651 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 2828 16573+8651 STT 340 AB 1847 2010 31 221 31.3 8.40 9.25 0.85 <===
Show 2828 16573+8651 WAL 75 AC 1899 2014 10 92 78.1 8.40 10.72 2.32
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.9
Precise sep
31.3
Constellation
Ursa Minor
SAO
2828
HIP
82968
Tycho2
4655-00519-1
HD
160010
BD
BD+86 264
Distance
109.53
Distance ly
357.29
last precise pa
220.9
last precise sep
31.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16573+8651 STT 340 AB 1999 28 221 31.4 8.40 9.25 F2 N DV 165718.06+865040.1
16573+8651 STT 340 AB 2010 30 221 31.3 8.40 9.25 F2 NVD 165718.06+865040.1

If you need more information about this double, apply for a data request form to the WDS.