18317-2211 ARA1890

 
 
18h 31m 44.04s -22 10' 40.6" P.A. 289 sep 11.4 mag 11.12,11.90
 
 
Coord 2000
18317-2211
Discov num
ARA1890
Comp
Coord arcsec 2000
18 31 44.04 -22 10 40.6
Date first
1928
Date last
2010
Obs
6
Pa first
291
Pa last
289
P.A. Now (θ)
289°
Sep first
10.2
Sep last
11.4
Sep. Now (ρ)
11.4"
Mag pri
11.12
Mag sec
11.90
delta mag (ΔM)
0.78
Spectral class
Pri motion ra
+007
Sec motion ra
-011
Pri motion dec
-002
Sec motion dec
-004
Notes
rPM=1.547
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
289.1
Precise sep
11.36
Constellation
Sagittarius
Tycho2
6278-00853-1
last precise pa
289.1
last precise sep
11.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18317-2211 ARA1890 1999 2 290 11.3 11.12 11.90 D 183144.04-221040.6
18317-2211 ARA1890 2010 6 289 11.1 11.12 11.90 183144.04-221040.6

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