18191-2644 B   387BC

 
 
18H 19M 06.24S -26 44' 11.5" P.A. 128 SEP 1.1 MAG 10.93,11.46 SP A0V
 
 
Coord 2000
18191-2644
Discov num
B   387
Comp
BC
Coord arcsec 2000
18 19 06.24 -26 44 11.5
Date first
1927
Date last
1991
Obs
3
Pa first
167
Pa last
128
P.A. Now (θ)
128°
Sep first
0.7
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
10.93
Mag sec
11.46
delta mag (ΔM)
0.53
Spectral class
A0V (white)
Pri motion ra
-002
Sec motion ra
-002
Pri motion dec
-017
Sec motion dec
-017
Notes
Nature of this double is uncertain.
 
 
18191-2644 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186637 18191-2644 B 387 AB 1912 2000 8 37 8.7 10.15 10.93 0.78
Show 186637 18191-2644 B 387 BC 1927 1991 3 128 1.1 10.93 11.46 0.53 <===
Show 186637 18191-2644 B 387 BD 1927 1999 2 321 4.7 10.93 14.90 3.97
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
SAO
186637
Tycho2
6852-05206-1
last precise pa
128
last precise sep
1.13