18556-2241 ARA1904

 
 
18h 55m 40.19s -22 41' 09.9" P.A. 81 sep 12.4 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
2015
Obs
11
Pa first
79
Pa last
81
P.A. Now (θ)
81°
Sep first
11.8
Sep last
12.4
Sep. Now (ρ)
12.4"
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
80.5
Precise sep
12.393
Constellation
Sagittarius
Tycho2
6860-00999-1
Gaia DR2
57376019200
 
 
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
18556-2241 ARA1904 2015 11 81 12.4 11.45 12.20 185540.19-224109.9

If you need more information about this double, apply for a data request form to the WDS.