18509+2058 COU 317AB

 
 
18h 50m 55.84s +20 57' 51.3" P.A. 94 sep 1.6 mag 10.83,11.60 Sp A0
 
 
Coord 2000
18509+2058
Discov num
COU 317
Comp
AB
Coord arcsec 2000
18 50 55.84 +20 57 51.3
Date first
1968
Date last
2005
Obs
5
Pa first
99
Pa last
94
P.A. Now (θ)
94°
Sep first
1.2
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
10.83
Mag sec
11.60
delta mag (ΔM)
0.77
Spectral class
A0 (white)
Pri motion ra
-005
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
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
93.6
Precise sep
1.62
Cdsa2 id
COU 317 AB
Constellation
Hercules
Ra deg
18.848844444444442
De deg
20.96425
last precise pa
93.6
last precise sep
1.62
 
 
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 AB 2005 5 94 1.6 9.90 10.70 A0 185055.84+205751.3

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