18452-2117 ARA1553

 
 
18h 45m 08.10s -21 16' 28.6" P.A. 274 sep 10.2 mag 13.60,13.90
 
 
Coord 2000
18452-2117
Discov num
ARA1553
Comp
Coord arcsec 2000
18 45 08.10 -21 16 28.6
Date first
1922
Date last
2010
Obs
4
Pa first
280
Pa last
274
P.A. Now (θ)
274°
Sep first
10.2
Sep last
10.2
Sep. Now (ρ)
10.2"
Mag pri
13.60
Mag sec
13.90
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
+012
Sec motion ra
-001
Pri motion dec
+002
Sec motion dec
-005
Notes
rPM=1.214
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
274.1
Precise sep
10.18
Constellation
Sagittarius
last precise pa
274.1
last precise sep
10.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18452-2117 ARA1553 1998 2 274 10.0 13.60 13.90 D 184508.10-211628.6
18452-2117 ARA1553 1999 3 274 10.0 13.60 13.90 D 184508.10-211628.6
18452-2117 ARA1553 2010 4 274 10.2 13.60 13.90 184508.10-211628.6

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