18163-2008 ARA1143

 
 
18h 16m 18.90s -20 08' 38.5" P.A. 18 sep 10.9 mag 12.01,12.60
 
 
Coord 2000
18163-2008
Discov num
ARA1143
Comp
Coord arcsec 2000
18 16 18.90 -20 08 38.5
Date first
1922
Date last
1999
Obs
4
Pa first
15
Pa last
18
P.A. Now (θ)
18°
Sep first
10.1
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
12.01
Mag sec
12.60
delta mag (ΔM)
0.59
Spectral class
Pri motion ra
-002
Sec motion ra
+010
Pri motion dec
-008
Sec motion dec
+001
Notes
rPM=1.493
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
18
Precise sep
10.914
Constellation
Sagittarius
Tycho2
6273-01503-1
last precise pa
18
last precise sep
10.914
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18163-2008 ARA1143 1922 1 195 10.1 12.01 12.00 181618.90-200838.6
18163-2008 ARA1143 1999 3 18 10.9 12.01 12.60 181618.90-200838.5

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