18331-0845 HJ 5498AC

 
 
18h 33m 03.94s -08 44' 56.6" P.A. 168 sep 25.2 mag 11.65,12.38 Sp B6III
 
 
Coord 2000
18331-0845
Discov num
HJ 5498
Comp
AC
Coord arcsec 2000
18 33 03.94 -08 44 56.6
Date first
1922
Date last
2014
Obs
9
Pa first
169
Pa last
168
P.A. Now (θ)
168°
Sep first
24.9
Sep last
25.2
Sep. Now (ρ)
25.2"
Mag pri
11.65
Mag sec
12.38
delta mag (ΔM)
0.73
Spectral class
B6III (blue-white)
Pri motion ra
-004
Sec motion ra
+002
Pri motion dec
-007
Sec motion dec
-005
Notes
U (Proper motion indicates non-physical)
rPM=0.784
This double is not physical.
 
 
18331-0845 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18331-0845 HJ 5498 AB 1827 2014 10 95 14.3 11.65 12.50 0.85
Show 18331-0845 HJ 5498 AC 1922 2014 9 168 25.2 11.65 12.38 0.73 <===
Show 18331-0845 ABH 101 AD 1988 2000 4 124 49.4 11.65 15.40 3.75
Show 18331-0845 ABH 101 AE 1988 2000 4 165 83.5 11.65 13.49 1.84
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
167.9
Precise sep
25.18
Constellation
Scutum
Tycho2
5691-00197-1
last precise pa
167.9
last precise sep
25.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18331-0845 HJ 5498 AC 2002 5 168 25.2 11.74 12.50 B6III D 183303.94-084456.6
18331-0845 HJ 5498 AC 2014 7 168 25.2 11.65 12.38 B6III U 183303.94-084456.6

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