18556-2241 ARA1904

 
 
18h 55m 40.19s -22 41' 09.9" P.A. 82 sep 12.5 mag 11.45,12.20
 
 
Coord 2000
18556-2241
Discov num
ARA1904
Comp
Coord arcsec 2000
18 55 40.19 -22 41 09.9
Date first
1921
Date last
2010
Obs
10
Pa first
79
Pa last
82
P.A. Now (θ)
82°
Sep first
11.8
Sep last
12.5
Sep. Now (ρ)
12.5"
Mag pri
11.45
Mag sec
12.20
delta mag (ΔM)
0.75
Spectral class
Pri motion ra
+002
Sec motion ra
+004
Pri motion dec
+004
Sec motion dec
+001
Notes
rPM=0.806
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
81.6
Precise sep
12.54
Constellation
Sagittarius
Tycho2
6860-00999-1
last precise pa
81.6
last precise sep
12.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18556-2241 ARA1904 1923 3 260 13.1 11.45 12.20 185540.18-224109.5
18556-2241 ARA1904 2000 5 80 12.4 11.45 12.20 185540.19-224109.9
18556-2241 ARA1904 2010 10 81 12.1 11.45 12.20 185540.19-224109.9

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