17509-3342 HDO 280AB (RY Sco)

 
 
17H 50M 52.34S -33 42' 20.4" P.A. 102 SEP 2 MAG 8.36,11.50 SP F6IB DIST. 88.65 PC (289.18 L.Y.)
 
 
Coord 2000
17509-3342
Discov num
HDO 280
Comp
AB
Coord arcsec 2000
17 50 52.34 -33 42 20.4
Date first
1897
Date last
1964
Obs
4
Pa first
90
Pa last
102
P.A. Now (θ)
102°
Sep first
3.5
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
8.36
Mag sec
11.50
delta mag (ΔM)
3.14
Spectral class
F6Ib (yellow-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17509-3342 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show RY Sco 209340 17509-3342 HDO 280 AB 1897 1964 4 102 2.0 8.36 11.50 3.14 <===
Show 209340 17509-3342 HDO 280 AC 1897 2000 13 219 14.8 8.36 10.63 2.27
Show 209340 17509-3342 I 9019 AD 1900 2000 4 199 33.3 8.36 13.60 5.24
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
RY Sco
Constellation
Scorpius
SAO
209340
HIP
87345
Tycho2
7381-00346-1
HD
162102
CD
CD-3312533
CP
CP-33 4644
Distance
88.65
Distance ly
289.18
last precise pa
102.3
last precise sep
2