18231-2252 ARA1881

 
 
18h 23m 06.18s -22 51' 40.2" P.A. 135 sep 13.7 mag 13.00,13.20
 
 
Coord 2000
18231-2252
Discov num
ARA1881
Comp
Coord arcsec 2000
18 23 06.18 -22 51 40.2
Date first
1920
Date last
2010
Obs
5
Pa first
138
Pa last
135
P.A. Now (θ)
135°
Sep first
14.5
Sep last
13.7
Sep. Now (ρ)
13.7"
Mag pri
13.00
Mag sec
13.20
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
+007
Sec motion ra
+026
Pri motion dec
-015
Sec motion dec
+001
Notes
rPM=0.955
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
135.3
Precise sep
13.65
Constellation
Sagittarius
last precise pa
135.3
last precise sep
13.65
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18231-2252 ARA1881 1998 2 134 13.5 13.00 13.20 D 182306.18-225140.2
18231-2252 ARA1881 1999 3 134 13.5 13.00 13.20 D 182306.18-225140.2
18231-2252 ARA1881 2010 5 135 13.6 13.00 13.20 182306.18-225140.2

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