18387-2114 ARA1551

 
 
18h 38m 40.81s -21 13' 25.0" P.A. 136 sep 6.1 mag 13.10,13.20
 
 
Coord 2000
18387-2114
Discov num
ARA1551
Comp
Coord arcsec 2000
18 38 40.81 -21 13 25.0
Date first
1921
Date last
1999
Obs
5
Pa first
137
Pa last
136
P.A. Now (θ)
136°
Sep first
6.7
Sep last
6.1
Sep. Now (ρ)
6.1"
Mag pri
13.10
Mag sec
13.20
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
-001
Sec motion ra
-004
Pri motion dec
+002
Sec motion dec
+003
Notes
rPM=0.632
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
136.1
Precise sep
6.112
Constellation
Sagittarius
last precise pa
136.1
last precise sep
6.112
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18387-2114 ARA1551 1998 3 137 6.1 13.10 13.20 D 183840.81-211325.0
18387-2114 ARA1551 1999 4 136 6.1 13.10 13.20 D 183840.81-211325.0

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