18118-1825 HJ 2820BC

 
 
18h 11m 46.39s -18 22' 51.5" P.A. 87 sep 18.5 mag 11.83,13.05 dist. 512.82 pc (1672.82 l.y.)
 
 
Coord 2000
18118-1825
Discov num
HJ 2820
Comp
BC
Coord arcsec 2000
18 11 46.39 -18 22 51.5
Date first
1901
Date last
1999
Obs
9
Pa first
88
Pa last
87
P.A. Now (θ)
87°
Sep first
18.5
Sep last
18.5
Sep. Now (ρ)
18.5"
Mag pri
11.83
Mag sec
13.05
delta mag (ΔM)
1.22
Spectral class
Pri motion ra
-005
Sec motion ra
-001
Pri motion dec
-003
Sec motion dec
-002
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18118-1825 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18118-1825 HJ 2820 AB 1830 1999 11 279 5.8 10.09 11.83 1.74
Show 18118-1825 HJ 2820 AC 1830 1999 9 82 12.9 10.09 13.05 2.96
Show 18118-1825 HJ 2820 BC 1901 1999 9 87 18.5 11.83 13.05 1.22 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Spectr
B0Vpe
Constellation
Sagittarius
HIP
89158
Tycho2
6268-01416-1
HD
166524
BD
BD-18 4826
Distance
512.82
Distance ly
1672.82
last precise pa
86.8
last precise sep
18.529
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18118-1825 HJ 2820 BC 1998 7 87 18.5 11.83 13.05 D 181146.39-182251.5
18118-1825 HJ 2820 BC 1999 8 87 18.5 11.83 13.05 D 181146.39-182251.5

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