18496-1654 HWE  44AB

 
 
18h 49m 35.81s -16 54' 19.6" P.A. 298 sep 2 mag 8.59,10.26 Sp B9III
 
 
Coord 2000
18496-1654
Discov num
HWE  44
Comp
AB
Coord arcsec 2000
18 49 35.81 -16 54 19.6
Date first
1888
Date last
2003
Obs
7
Pa first
296
Pa last
298
P.A. Now (θ)
298°
Sep first
1.8
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
8.59
Mag sec
10.26
delta mag (ΔM)
1.67
Spectral class
B9III (blue-white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-026
Sec motion dec
-026
Notes
Nature of this double is uncertain.
 
 
18496-1654 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18496-1654 HWE 44 AB 1888 2003 7 298 2.0 8.59 10.26 1.67 <===
Show 18496-1654 HWE 44 AC 1879 2000 8 308 35.9 8.59 11.79 3.20
Show 18496-1654 KNP 3 AD 1965 2000 4 199 22.5 8.59 12.50 3.91
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.6
Precise sep
2.02
Constellation
Sagittarius
last precise pa
297.6
last precise sep
2.02
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18496-1654 HWE 44 AB 2003 7 298 2.0 8.59 10.26 B9III 184935.81-165419.6

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