18569+5645 STF2433AC

 
 
18H 56M 55.18S +56 44' 57.4" P.A. 139 SEP 39.5 MAG 7.17,12.65 SP F2V
 
 
Coord 2000
18569+5645
Discov num
STF2433
Comp
AC
Coord arcsec 2000
18 56 55.18 +56 44 57.4
Date first
1905
Date last
2006
Obs
5
Pa first
126
Pa last
139
P.A. Now (θ)
139°
Sep first
36.0
Sep last
39.5
Sep. Now (ρ)
39.5"
Mag pri
7.17
Mag sec
12.65
delta mag (ΔM)
5.48
Spectral class
F2V (yellow-white)
Pri motion ra
+037
Sec motion ra
-017
Pri motion dec
+041
Sec motion dec
-048
Notes
Nature of this double is uncertain.
 
 
18569+5645 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18569+5645 STF2433 AB 1834 2006 17 124 7.5 7.17 10.09 2.92
Show 18569+5645 STF2433 AC 1905 2006 5 139 39.5 7.17 12.65 5.48 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
last precise pa
138.7
last precise sep
39.5