18198-1809 RST3175

 
 
18h 19m 42.78s -18 09' 45.5" P.A. 127 sep 0.6 mag 9.20,11.80 Sp B3II
 
 
Coord 2000
18198-1809
Discov num
RST3175
Comp
Coord arcsec 2000
18 19 42.78 -18 09 45.5
Date first
1935
Date last
1940
Obs
2
Pa first
126
Pa last
127
P.A. Now (θ)
127°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
9.20
Mag sec
11.80
delta mag (ΔM)
2.6
Spectral class
B3II (blue-white)
Pri motion ra
+008
Sec motion ra
Pri motion dec
+006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
127.4
Precise sep
0.63
Constellation
Sagittarius
Tycho2
6269-02035-1
last precise pa
127.4
last precise sep
0.63
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18198-1809 RST3175 1940 2 127 0.6 9.20 11.80 B3II 181942.78-180945.5

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