18592-2114 HDS2693Aa,Ab

 
 
18h 59m 13.15s -21 13' 50.3" P.A. 160 sep 0.3 mag 8.73,10.91 Sp B9.5III
 
 
Coord 2000
18592-2114
Discov num
HDS2693
Comp
Aa,Ab
Coord arcsec 2000
18 59 13.15 -21 13 50.3
Date first
1991
Date last
2017
Obs
2
Pa first
150
Pa last
160
P.A. Now (θ)
160°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.73
Mag sec
10.91
delta mag (ΔM)
2.18
Spectral class
B9.5III (blue-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18592-2114 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18592-2114 HDS2693 Aa,Ab 1991 2017 2 160 0.3 8.73 10.91 2.18 <===
Show 18592-2114 RST5127 AB 1941 1941 1 191 2.8 8.50 14.50 6.00
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
159.6
Precise sep
0.343
Cdsa2 id
HDS 2693 Aa,Ab
Constellation
Sagittarius
Ra deg
18.98698611111111
De deg
-21.230638888888887
last precise pa
159.6
last precise sep
0.343
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18592-2114 HDS2693 Aa,Ab 1991 1 150 0.3 8.73 10.91 B9.5III D 185913.15-211350.3
18592-2114 HDS2693 Aa,Ab 2017 2 160 0.3 8.73 10.91 B9.5III 185913.15-211350.3

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