18089-1827 ARA 453

 
 
18h 08m 52.23s -18 26' 55.1" P.A. 57 sep 9 mag 10.69,12.50 Sp B8
 
 
Coord 2000
18089-1827
Discov num
ARA 453
Comp
Coord arcsec 2000
18 08 52.23 -18 26 55.1
Date first
1916
Date last
2012
Obs
9
Pa first
63
Pa last
57
P.A. Now (θ)
57°
Sep first
8.6
Sep last
9.0
Sep. Now (ρ)
9"
Mag pri
10.69
Mag sec
12.50
delta mag (ΔM)
1.81
Spectral class
B8 (blue-white)
Pri motion ra
-006
Sec motion ra
+003
Pri motion dec
-004
Sec motion dec
+002
Notes
rPM=1.5
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
57
Precise sep
8.95
Constellation
Sagittarius
Tycho2
6268-00825-1
HD
312629
last precise pa
57.8
last precise sep
9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18089-1827 ARA 453 1998 4 57 8.8 10.69 12.50 D 180852.23-182655.1
18089-1827 ARA 453 1999 6 58 8.7 10.69 12.50 D 180852.23-182655.1
18089-1827 ARA 453 2011 8 57 8.8 10.69 12.50 B8 180852.23-182655.1
18089-1827 ARA 453 2012 9 57 9.0 10.69 12.50 B8 180852.23-182655.1

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