18122-3921 HJ 5028AC

 
 
18h 12m 09.65s -39 20' 39.7" P.A. 148 sep 14.9 mag 8.79,9.42 Sp B8/9V
 
 
Coord 2000
18122-3921
Discov num
HJ 5028
Comp
AC
Coord arcsec 2000
18 12 09.65 -39 20 39.7
Date first
1835
Date last
2016
Obs
21
Pa first
153
Pa last
148
P.A. Now (θ)
148°
Sep first
17.5
Sep last
14.9
Sep. Now (ρ)
14.9"
Mag pri
8.79
Mag sec
9.42
delta mag (ΔM)
0.63
Spectral class
B8/9V (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
148.1
Precise sep
14.89
Constellation
Corona Austrina
SAO
209839
Tycho2
7900-05649-1
HD
166370
last precise pa
148.1
last precise sep
14.89
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18122-3921 HJ 5028 AC 2000 19 148 14.2 8.79 9.42 D 181209.65-392039.7
18122-3921 HJ 5028 AC 2010 21 149 13.9 8.79 9.42 B8/9V 181209.65-392039.7
18122-3921 HJ 5028 AC 2016 21 148 14.9 8.79 9.42 B8/9V 181209.65-392039.7

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