18554+2324 COU 511Aa,Ab

 
 
18h 55m 23.68s +23 24' 00.1" P.A. 190 sep 0.8 mag 9.73,9.88 Sp G0
 
 
Coord 2000
18554+2324
Discov num
COU 511
Comp
Aa,Ab
Coord arcsec 2000
18 55 23.68 +23 24 00.1
Date first
1970
Date last
2013
Obs
17
Pa first
200
Pa last
190
P.A. Now (θ)
190°
Sep first
0.4
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
9.73
Mag sec
9.88
delta mag (ΔM)
0.15
Spectral class
G0 (yellow)
Pri motion ra
+016
Sec motion ra
+016
Pri motion dec
+030
Sec motion dec
+030
Notes
Nature of this double is uncertain.
 
 
18554+2324 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18554+2324 COU 511 Aa,Ab 1970 2013 17 190 0.8 9.73 9.88 0.15 <===
Show 18554+2324 POU3591 AB 1894 2013 19 46 24.3 9.17 10.11 0.94
Show 18554+2324 LBU 10 AC 1992 2001 3 214 61.8 9.17 11.80 2.63
Show 18554+2324 LBU 10 AD 1894 2001 5 57 123.5 9.17 11.30 2.13
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
190.4
Precise sep
0.76
Cdsa2 id
COU 511 Aa,Ab
Constellation
Hercules
Ra deg
18.923244444444446
De deg
23.400027777777776
last precise pa
190.4
last precise sep
0.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18554+2324 COU 511 Aa,Ab 1997 14 194 0.6 9.73 9.88 G0 185523.68+232400.1
18554+2324 COU 511 Aa,Ab 2005 15 196 0.7 9.73 9.88 G0 185523.68+232400.1
18554+2324 COU 511 Aa,Ab 2010 16 190 0.7 9.73 9.88 G0 185523.68+232400.1
18554+2324 COU 511 Aa,Ab 2013 17 190 0.8 9.73 9.88 G0 185523.68+232400.1

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