17509-3342 HDO 280AC

 
 
17h 50m 52.34s -33 42' 20.4" P.A. 219 sep 14.8 mag 8.36,10.63 Sp F6Ib+F8 dist. 88.65 pc (289.18 l.y.)
 
 
Coord 2000
17509-3342
Discov num
HDO 280
Comp
AC
Coord arcsec 2000
17 50 52.34 -33 42 20.4
Date first
1897
Date last
2000
Obs
13
Pa first
215
Pa last
219
P.A. Now (θ)
219°
Sep first
15.0
Sep last
14.8
Sep. Now (ρ)
14.8"
Mag pri
8.36
Mag sec
10.63
delta mag (ΔM)
2.27
Spectral class
F6Ib+F8 (yellow-white/yellow-white)
Pri motion ra
-001
Sec motion ra
-006
Pri motion dec
-002
Sec motion dec
-024
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.912
This double is not physical.
 
 
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
 
 
Precise pa
218.6
Precise sep
14.752
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
218.6
last precise sep
14.752
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17509-3342 HDO 280 AC 1998 11 219 14.7 8.36 10.63 N D 175052.34-334220.4
17509-3342 HDO 280 AC 2000 14 219 14.8 8.36 10.63 N D 175052.34-334220.4

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