18098-2203 RST3158

 
 
18h 09m 48.61s -22 03' 22.5" P.A. 136 sep 0.4 mag 9.67,9.97 Sp B3
 
 
Coord 2000
18098-2203
Discov num
RST3158
Comp
Coord arcsec 2000
18 09 48.61 -22 03 22.5
Date first
1930
Date last
1991
Obs
11
Pa first
138
Pa last
136
P.A. Now (θ)
136°
Sep first
0.5
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.67
Mag sec
9.97
delta mag (ΔM)
0.3
Spectral class
B3 (blue-white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-001
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
135.8
Precise sep
0.36
Constellation
Sagittarius
SAO
186384
Tycho2
6276-00188-1
HD
166054
last precise pa
135.8
last precise sep
0.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18098-2203 RST3158 1991 11 136 0.4 9.67 9.97 B3 180948.61-220322.5

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