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
Constellation
Hercules
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.