18085-3113 PRO 197

 
 
18h 08m 25.87s -31 12' 35.0" P.A. 283 sep 7.9 mag 10.10,11.60 Sp B8Ib/II
 
 
Coord 2000
18085-3113
Discov num
PRO 197
Comp
Coord arcsec 2000
18 08 25.87 -31 12 35.0
Date first
1910
Date last
2000
Obs
5
Pa first
288
Pa last
283
P.A. Now (θ)
283°
Sep first
7.9
Sep last
7.9
Sep. Now (ρ)
7.9"
Mag pri
10.10
Mag sec
11.60
delta mag (ΔM)
1.5
Spectral class
B8Ib/II (blue-white)
Pri motion ra
+009
Sec motion ra
+004
Pri motion dec
-003
Sec motion dec
+000
Notes
rPM=0.615
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
282.9
Precise sep
7.92
Constellation
Sagittarius
last precise pa
282.9
last precise sep
7.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18085-3113 PRO 197 1913 2 272 8.0 10.30 11.20 B8Ib/II 180812.00-311300.0
18085-3113 PRO 197 1998 3 282 8.0 10.10 11.60 B8Ib/II D 180825.87-311235.0
18085-3113 PRO 197 1999 4 283 8.0 10.10 11.60 B8Ib/II D 180825.87-311235.0
18085-3113 PRO 197 2000 5 283 7.9 10.10 11.60 B8Ib/II 180825.87-311235.0

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