18498-1655 TDT4316

 
 
18h 49m 48.72s -16 55' 11.0" P.A. 333 sep 45.1 mag 9.89,12.03 Sp B9III
 
 
Coord 2000
18498-1655
Discov num
TDT4316
Comp
Coord arcsec 2000
18 49 48.72 -16 55 11.0
Date first
1905
Date last
2010
Obs
9
Pa first
334
Pa last
333
P.A. Now (θ)
333°
Sep first
45.5
Sep last
45.1
Sep. Now (ρ)
45.1"
Mag pri
9.89
Mag sec
12.03
delta mag (ΔM)
2.14
Spectral class
B9III (blue-white)
Pri motion ra
-006
Sec motion ra
-011
Pri motion dec
-006
Sec motion dec
-005
Notes
rPM=0.422
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
332.7
Precise sep
45.06
Constellation
Sagittarius
last precise pa
332.7
last precise sep
45.06
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18498-1655 TDT4316 1998 6 333 45.0 9.89 11.71 D 184948.72-165511.0
18498-1655 TDT4316 2000 8 333 45.0 9.89 11.71 D 184948.72-165511.0
18498-1655 TDT4316 2010 9 333 45.0 9.89 12.03 B9III 184948.72-165511.0

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