18289-2122 HU  241AC

 
 
18h 28m 51.32s -21 22' 02.3" P.A. 301 sep 62.9 mag 9.09,11.75 Sp B9III
 
 
Coord 2000
18289-2122
Discov num
HU  241
Comp
AC
Coord arcsec 2000
18 28 51.32 -21 22 02.3
Date first
1911
Date last
1999
Obs
5
Pa first
301
Pa last
301
P.A. Now (θ)
301°
Sep first
63.0
Sep last
62.9
Sep. Now (ρ)
62.9"
Mag pri
9.09
Mag sec
11.75
delta mag (ΔM)
2.66
Spectral class
B9III (blue-white)
Pri motion ra
-014
Sec motion ra
-003
Pri motion dec
-023
Sec motion dec
-002
Notes
rPM=0.88
This double is not physical.
 
 
18289-2122 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18289-2122 HU 241 AB 1900 1999 9 35 4.1 9.10 10.60 1.50
Show 18289-2122 HU 241 AC 1911 1999 5 301 62.9 9.09 11.75 2.66 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
300.7
Precise sep
62.859
Constellation
Sagittarius
Tycho2
6278-02302-1
HD
170163
last precise pa
300.7
last precise sep
62.859
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18289-2122 HU 241 AC 1998 4 301 62.9 8.90   B9III D 182851.32-212202.3
18289-2122 HU 241 AC 1999 5 297 63.3 9.09 11.75 B9III D 182851.32-212202.3

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