18315-2138 ARA1540

 
 
18h 31m 29.97s -21 37' 37.8" P.A. 10 sep 14.7 mag 13.60,13.90
 
 
Coord 2000
18315-2138
Discov num
ARA1540
Comp
Coord arcsec 2000
18 31 29.97 -21 37 37.8
Date first
1922
Date last
1999
Obs
4
Pa first
350
Pa last
10
P.A. Now (θ)
10°
Sep first
13.4
Sep last
14.7
Sep. Now (ρ)
14.7"
Mag pri
13.60
Mag sec
13.90
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
Sec motion ra
-016
Pri motion dec
Sec motion dec
+001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
9.6
Precise sep
14.713
Constellation
Sagittarius
last precise pa
9.6
last precise sep
14.713
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18315-2138 ARA1540 1999 2 10 14.8 13.60 13.90 D 183129.97-213737.8

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