18588-2139 ARA1558

 
 
18h 58m 45.08s -21 38' 32.8" P.A. 137 sep 6.4 mag 12.00,12.80
 
 
Coord 2000
18588-2139
Discov num
ARA1558
Comp
Coord arcsec 2000
18 58 45.08 -21 38 32.8
Date first
1926
Date last
1999
Obs
3
Pa first
141
Pa last
137
P.A. Now (θ)
137°
Sep first
7.0
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
12.00
Mag sec
12.80
delta mag (ΔM)
0.8
Spectral class
Pri motion ra
+004
Sec motion ra
+005
Pri motion dec
+007
Sec motion dec
-001
Notes
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
136.8
Precise sep
6.428
Constellation
Sagittarius
last precise pa
136.8
last precise sep
6.428
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18588-2139 ARA1558 1999 2 137 6.5 12.00 12.80 D 185845.08-213832.8
18588-2139 ARA1558 2010 4 137 5.6 12.00 12.80 185845.08-213832.8

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