17452-4458 BRT 990BC

 
 
17H 45M 12.70S -44 57' 57.4" P.A. 20 SEP 4.2 MAG 12.39,12.53
 
 
Coord 2000
17452-4458
Discov num
BRT 990
Comp
BC
Coord arcsec 2000
17 45 12.70 -44 57 57.4
Date first
1904
Date last
1999
Obs
4
Pa first
19
Pa last
20
P.A. Now (θ)
20°
Sep first
4.0
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
12.39
Mag sec
12.53
delta mag (ΔM)
0.14
Spectral class
Pri motion ra
-084
Sec motion ra
-013
Pri motion dec
-039
Sec motion dec
+015
Notes
B (Blue magnitudes)
rPM=0.963
This double is not physical.
 
 
17452-4458 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17452-4458 BRT 990 AB 1904 2000 4 292 4.4 12.32 12.39 0.07
Show 17452-4458 BRT 990 BC 1904 1999 4 20 4.2 12.39 12.53 0.14 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.9
Precise sep
4.16
Constellation
Scorpius
last precise pa
19.9
last precise sep
4.16