18152-1738 ARA 270

 
 
18h 15m 13.18s -17 38' 15.2" P.A. 333 sep 15 mag 9.07,11.27 Sp B9III
 
 
Coord 2000
18152-1738
Discov num
ARA 270
Comp
Coord arcsec 2000
18 15 13.18 -17 38 15.2
Date first
1915
Date last
1999
Obs
5
Pa first
330
Pa last
333
P.A. Now (θ)
333°
Sep first
14.8
Sep last
15.0
Sep. Now (ρ)
15"
Mag pri
9.07
Mag sec
11.27
delta mag (ΔM)
2.2
Spectral class
B9III (blue-white)
Pri motion ra
+001
Sec motion ra
-004
Pri motion dec
-003
Sec motion dec
+002
Notes
rPM=1.581
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
333
Precise sep
15.002
Constellation
Sagittarius
SAO
161216
Tycho2
6268-01548-1
HD
167285
last precise pa
333
last precise sep
15.002
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18152-1738 ARA 270 1999 4 333 15.0 9.07 11.27 B9III D 181513.18-173815.2
18152-1738 ARA 270 2010 6 328 15.8 9.07 11.27 B9III 181513.18-173815.2

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