18521+5120 STF2416AC

 
 
18H 52M 08.85S +51 19' 42.8" P.A. 40 SEP 121.6 MAG 8.67,9.41 SP G0
 
 
Coord 2000
18521+5120
Discov num
STF2416
Comp
AC
Coord arcsec 2000
18 52 08.85 +51 19 42.8
Date first
1882
Date last
2015
Obs
16
Pa first
41
Pa last
40
P.A. Now (θ)
40°
Sep first
127.2
Sep last
121.6
Sep. Now (ρ)
121.6"
Mag pri
8.67
Mag sec
9.41
delta mag (ΔM)
0.74
Spectral class
G0 (yellow)
Pri motion ra
-001
Sec motion ra
-015
Pri motion dec
+010
Sec motion dec
-020
Notes
Nature of this double is uncertain.
 
 
18521+5120 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18521+5120 STF2416 AB 1830 2015 20 158 19.9 8.67 11.17 2.50
Show 18521+5120 STF2416 AC 1882 2015 16 40 121.6 8.67 9.41 0.74 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
Tycho2
3552-00143-1
HD
175308
last precise pa
40.2
last precise sep
121.58