18386-2149 J  1633AB

 
 
18h 38m 36.40s -21 49' 08.5" P.A. 143 sep 36.8 mag 10.64,11.37
 
 
Coord 2000
18386-2149
Discov num
J  1633
Comp
AB
Coord arcsec 2000
18 38 36.40 -21 49 08.5
Date first
1921
Date last
1999
Obs
8
Pa first
146
Pa last
143
P.A. Now (θ)
143°
Sep first
36.9
Sep last
36.8
Sep. Now (ρ)
36.8"
Mag pri
10.64
Mag sec
11.37
delta mag (ΔM)
0.73
Spectral class
Pri motion ra
-020
Sec motion ra
-001
Pri motion dec
-012
Sec motion dec
+001
Notes
rPM=0.987
This double is not physical.
 
 
18386-2149 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18386-2149 J 1633 AB 1921 1999 8 143 36.8 10.64 11.37 0.73 <===
Show 18386-2149 J 1633 BC 1921 1999 9 148 7.5 11.37 12.80 1.43
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
143.1
Precise sep
36.756
Constellation
Sagittarius
Tycho2
6279-00767-1
last precise pa
143.1
last precise sep
36.756
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18386-2149 J 1633 AB 1998 7 143 36.8 10.64 11.37 D 183836.40-214908.5
18386-2149 J 1633 AB 1999 8 143 36.8 10.64 11.37 D 183836.40-214908.5

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