17507+0755 STF2230BC

 
 
17H 50M 43.24S +07 55' 21.7" P.A. 209 SEP 20.5 MAG 9.85,11.12 SP A5
 
 
Coord 2000
17507+0755
Discov num
STF2230
Comp
BC
Coord arcsec 2000
17 50 43.24 +07 55 21.7
Date first
1831
Date last
2012
Obs
20
Pa first
209
Pa last
209
P.A. Now (θ)
209°
Sep first
18.8
Sep last
20.5
Sep. Now (ρ)
20.5"
Mag pri
9.85
Mag sec
11.12
delta mag (ΔM)
1.27
Spectral class
A5 (white)
Pri motion ra
+012
Sec motion ra
+008
Pri motion dec
-013
Sec motion dec
-025
Notes
N (See Notes)
rPM=0.482
Nature of this double is uncertain.
 
 
17507+0755 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17507+0755 STF2230 AB 1831 2013 30 86 46.3 9.21 9.85 0.64
Show 17507+0755 STF2230 AC 1831 2013 17 113 40.0 9.21 11.12 1.91
Show 17507+0755 STF2230 BC 1831 2012 20 209 20.5 9.85 11.12 1.27 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
Tycho2
0994-01341-1
HD
162430
last precise pa
208.6
last precise sep
20.47