18101-2346 RST5104

 
 
18h 10m 06.84s -23 46' 22.5" P.A. 156 sep 0.3 mag 8.70,8.70 Sp B2V
 
 
Coord 2000
18101-2346
Discov num
RST5104
Comp
Coord arcsec 2000
18 10 06.84 -23 46 22.5
Date first
1943
Date last
2008
Obs
9
Pa first
188
Pa last
156
P.A. Now (θ)
156°
Sep first
0.2
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.70
Mag sec
8.70
delta mag (ΔM)
0
Spectral class
B2V (blue-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
155.6
Precise sep
0.253
Constellation
Sagittarius
SAO
186389
Tycho2
6843-01403-1
HD
166107
last precise pa
155.6
last precise sep
0.253
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18101-2346 RST5104 1991 8 162 0.2 8.70 8.70 B2V 181006.84-234622.5
18101-2346 RST5104 2008 9 156 0.3 8.70 8.70 B2V 181006.84-234622.5

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