18042-2415 BU 1126AB

 
 
18H 04M 14.49S -24 14' 37.2" P.A. 55 SEP 0.6 MAG 9.40,10.40 SP B5
 
 
Coord 2000
18042-2415
Discov num
BU 1126
Comp
AB
Coord arcsec 2000
18 04 14.49 -24 14 37.2
Date first
1889
Date last
1943
Obs
7
Pa first
56
Pa last
55
P.A. Now (θ)
55°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
9.40
Mag sec
10.40
delta mag (ΔM)
1
Spectral class
B5 (blue-white)
Pri motion ra
-025
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18042-2415 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18042-2415 BU 1126 AB 1889 1943 7 55 0.6 9.40 10.40 1.00 <===
Show 18042-2415 HJ 5009 AB,C 1837 2001 21 21 4.6 9.42 10.70 1.28
Show 18042-2415 DAW 218 AB,D 1910 2000 6 138 24.9 9.42 12.40 2.98
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
Tycho2
6842-01456-1
HD
315026
last precise pa
55.4
last precise sep
0.57