18082-2216 BU  243AB

 
 
18h 08m 09.39s -22 16' 27.6" P.A. 126 sep 0.7 mag 8.70,8.73 Sp B2IV
 
 
Coord 2000
18082-2216
Discov num
BU  243
Comp
AB
Coord arcsec 2000
18 08 09.39 -22 16 27.6
Date first
1874
Date last
1991
Obs
21
Pa first
112
Pa last
126
P.A. Now (θ)
126°
Sep first
1.2
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
8.70
Mag sec
8.73
delta mag (ΔM)
0.03
Spectral class
B2IV (blue-white)
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-001
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
18082-2216 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186335 18082-2216 BU 243 AB 1874 1991 21 126 0.7 8.70 8.73 0.03 <===
Show 186335 18082-2216 BU 243 AB,C 1874 1999 11 56 40.2 8.70 9.84 1.14
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
125.7
Precise sep
0.71
Constellation
Sagittarius
SAO
186335
Tycho2
6276-00755-1
HD
165689
last precise pa
125.7
last precise sep
0.71
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18082-2216 BU 243 AB 1991 21 126 0.7 8.70 8.73 B2IV 180809.39-221627.6

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