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
Constellation
Hercules
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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