16558-3430 I   579AB

 
 
16h 55m 49.01s -34 29' 37.2" P.A. 229 sep 7.3 mag 9.64,10.00 Sp K1III:
 
 
Coord 2000
16558-3430
Discov num
I   579
Comp
AB
Coord arcsec 2000
16 55 49.01 -34 29 37.2
Date first
1909
Date last
2010
Obs
9
Pa first
230
Pa last
229
P.A. Now (θ)
229°
Sep first
2.7
Sep last
7.3
Sep. Now (ρ)
7.3"
Mag pri
9.64
Mag sec
10.00
delta mag (ΔM)
0.36
Spectral class
K1III: (yellow-orange)
Pri motion ra
+032
Sec motion ra
-111
Pri motion dec
+010
Sec motion dec
-113
Notes
rPM=1.191
This double is not physical.
 
 
16558-3430 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 16558-3430 I 579 AB 1909 2010 9 229 7.3 9.64 10.00 0.36 <===
Show 16558-3430 B 9030 AC 1940 2000 4 165 14.3 9.64 13.60 3.96
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
229.3
Precise sep
7.28
Constellation
Scorpius
Tycho2
7367-00704-1
HD
152608
last precise pa
229.3
last precise sep
7.28
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16558-3430 I 579 AB 1999 7 228 7.1 9.64 10.00 K1III: D 165549.01-342937.2
16558-3430 I 579 AB 2010 10 229 7.3 9.64 10.00 K1III: 165549.01-342937.2

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