18338+1744 WAK  21CD

 
 
18H 33M 45.62S +17 43' 55.9" P.A. 262 SEP 0.4 MAG 9.30,9.56 SP F6V DIST. 183.49 PC (598.54 L.Y.)
 
 
Coord 2000
18338+1744
Discov num
WAK  21
Comp
CD
Coord arcsec 2000
18 33 45.62 +17 43 55.9
Date first
1975
Date last
2011
Obs
20
Pa first
249
Pa last
262
P.A. Now (θ)
262°
Sep first
0.2
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.30
Mag sec
9.56
delta mag (ΔM)
0.26
Spectral class
F6V (yellow-white)
Pri motion ra
+010
Sec motion ra
+010
Pri motion dec
-006
Sec motion dec
-006
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18338+1744 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 103853 18338+1744 HU 322 AB 1901 2009 47 94 0.2 7.74 8.91 1.17 Y
Show 103853 18338+1744 STF2339 AB,CD 1828 2011 114 273 2.0 7.45 8.67 1.22
Show 103853 18338+1744 WAK 21 CD 1975 2011 20 262 0.4 9.30 9.56 0.26 <===
Quadruple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
103853
HIP
90996
Tycho2
1574-01293-1
HD
171365
BD
BD+17 3627
Distance
183.49
Distance ly
598.54
last precise pa
262
last precise sep
0.443