18509+2058 COU 317AC

 
 
18h 50m 55.84s +20 57' 51.3" P.A. 2 sep 17.2 mag 10.83,10.88 Sp A0
 
 
Coord 2000
18509+2058
Discov num
COU 317
Comp
AC
Coord arcsec 2000
18 50 55.84 +20 57 51.3
Date first
1968
Date last
2013
Obs
10
Pa first
1
Pa last
2
P.A. Now (θ)
Sep first
17.1
Sep last
17.2
Sep. Now (ρ)
17.2"
Mag pri
10.83
Mag sec
10.88
delta mag (ΔM)
0.05
Spectral class
A0 (white)
Pri motion ra
-005
Sec motion ra
+003
Pri motion dec
-010
Sec motion dec
-004
Notes
rPM=0.894
This double is not physical.
 
 
18509+2058 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18509+2058 COU 317 AB 1968 2005 5 94 1.6 10.83 11.60 0.77
Show 18509+2058 COU 317 AC 1968 2013 10 2 17.2 10.83 10.88 0.05 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
2.4
Precise sep
17.17
Cdsa2 id
COU 317 AC
Constellation
Hercules
Tycho2
1596-02088-1
Ra deg
18.848844444444442
De deg
20.96425
last precise pa
2.4
last precise sep
17.17
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18509+2058 COU 317 AC 1998 3 181 17.1 10.83 10.88 185055.84+205751.3
18509+2058 COU 317 AC 2008 4 182 17.2 10.83 10.88 185055.84+205751.3
18509+2058 COU 317 AC 2010 7 184 17.2 10.83 10.88 A0 185055.84+205751.3
18509+2058 COU 317 AC 2013 10 2 17.2 10.83 10.88 A0 185055.84+205751.3

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