18530-1623 RST4022

 
 
18h 53m 00.44s -16 22' 53.3" P.A. 314 sep 0.4 mag 7.22,9.35 Sp B8/9II
 
 
Coord 2000
18530-1623
Discov num
RST4022
Comp
Coord arcsec 2000
18 53 00.44 -16 22 53.3
Date first
1938
Date last
1991
Obs
4
Pa first
318
Pa last
314
P.A. Now (θ)
314°
Sep first
0.6
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
7.22
Mag sec
9.35
delta mag (ΔM)
2.13
Spectral class
B8/9II (blue-white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314
Precise sep
0.367
Constellation
Sagittarius
last precise pa
314
last precise sep
0.367
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18530-1623 RST4022 1991 4 314 0.4 7.22 9.35 B8/9II D 185300.44-162253.3

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