18149-3123 B  2437

 
 
18h 14m 54.03s -31 23' 02.3" P.A. 238 sep 8.5 mag 8.73,14.00 Sp B7II/III
 
 
Coord 2000
18149-3123
Discov num
B  2437
Comp
Coord arcsec 2000
18 14 54.03 -31 23 02.3
Date first
1910
Date last
1999
Obs
6
Pa first
239
Pa last
238
P.A. Now (θ)
238°
Sep first
8.8
Sep last
8.5
Sep. Now (ρ)
8.5"
Mag pri
8.73
Mag sec
14.00
delta mag (ΔM)
5.27
Spectral class
B7II/III (blue-white)
Pri motion ra
+002
Sec motion ra
-008
Pri motion dec
-001
Sec motion dec
-015
Notes
rPM=1.012
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
238.1
Precise sep
8.486
Constellation
Sagittarius
SAO
209904
Tycho2
7392-00743-1
HD
167054
last precise pa
238.1
last precise sep
8.486
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18149-3123 B 2437 1998 5 239 8.4 8.73 14.00 B7II/III D 181454.03-312302.3
18149-3123 B 2437 1999 6 238 8.5 8.73 14.00 B7II/III D 181454.03-312302.3
18149-3123 B 2437 2010 7 243 8.0 8.73 14.00 B7II/III 181454.03-312302.3

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