18217-2203 ARA1874

 
 
18h 21m 45.63s -22 02' 44.2" P.A. 291 sep 9.7 mag 10.99,12.40
 
 
Coord 2000
18217-2203
Discov num
ARA1874
Comp
Coord arcsec 2000
18 21 45.63 -22 02 44.2
Date first
1920
Date last
2010
Obs
10
Pa first
289
Pa last
291
P.A. Now (θ)
291°
Sep first
9.1
Sep last
9.7
Sep. Now (ρ)
9.7"
Mag pri
10.99
Mag sec
12.40
delta mag (ΔM)
1.41
Spectral class
Pri motion ra
+004
Sec motion ra
-002
Pri motion dec
+003
Sec motion dec
-002
Notes
rPM=1.562
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
290.8
Precise sep
9.7
Constellation
Sagittarius
Tycho2
6277-00750-1
last precise pa
290.8
last precise sep
9.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18217-2203 ARA1874 1999 6 289 9.6 10.99 12.40 D 182145.63-220244.2
18217-2203 ARA1874 2000 9 289 9.6 10.99 12.40 182145.63-220244.2
18217-2203 ARA1874 2010 10 291 8.4 10.99 12.40 182145.63-220244.2

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