18122-3921 HJ 5028BC

 
 
18H 12M 09.71S -39 20' 40.1" P.A. 151 SEP 13 MAG 9.17,9.42 SP B8/B9V+
 
 
Coord 2000
18122-3921
Discov num
HJ 5028
Comp
BC
Coord arcsec 2000
18 12 09.71 -39 20 40.1
Date first
1879
Date last
1991
Obs
14
Pa first
152
Pa last
151
P.A. Now (θ)
151°
Sep first
13.8
Sep last
13.0
Sep. Now (ρ)
13"
Mag pri
9.17
Mag sec
9.42
delta mag (ΔM)
0.25
Spectral class
B8/B9V+ (blue-white)
Pri motion ra
-018
Sec motion ra
-006
Pri motion dec
+000
Sec motion dec
-007
Notes
rPM=0.772
Nature of this double is uncertain.
 
 
18122-3921 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 209839 18122-3921 BU 759 AB 1879 2016 13 124 2.0 8.79 9.17 0.38
Show 209839 18122-3921 HJ 5028 AC 1835 2016 21 148 14.9 8.79 9.42 0.63
Show 209839 18122-3921 HJ 5028 BC 1879 1991 14 151 13.0 9.17 9.42 0.25 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
151.2
Precise sep
12.992
Constellation
Corona Austrina
SAO
209839
Tycho2
7900-05649-1
HD
166370
last precise pa
151.2
last precise sep
12.992