18340+5058 ES  785AB

 
 
18h 33m 58.79s +50 58' 18.3" P.A. 98 sep 9.4 mag 9.56,10.00 Sp G0V
 
 
Coord 2000
18340+5058
Discov num
ES  785
Comp
AB
Coord arcsec 2000
18 33 58.79 +50 58 18.3
Date first
1904
Date last
2010
Obs
12
Pa first
99
Pa last
98
P.A. Now (θ)
98°
Sep first
9.0
Sep last
9.4
Sep. Now (ρ)
9.4"
Mag pri
9.56
Mag sec
10.00
delta mag (ΔM)
0.44
Spectral class
G0V (yellow)
Pri motion ra
+007
Sec motion ra
+017
Pri motion dec
+105
Sec motion dec
+098
Notes
U (Proper motion indicates non-physical)
rPM=0.116 (< 0.3, Physical double)
This double is not physical.
 
 
18340+5058 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 31050 18340+5058 ES 785 AB 1904 2010 12 98 9.4 9.56 10.00 0.44 <===
Show 31050 18340+5058 ES 785 AC 1909 2010 5 296 11.1 9.56 13.00 3.44
Show 31050 18340+5058 ABH 102 AD 1988 2003 3 17 55.3 9.52 15.13 5.61
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.9
Precise sep
9.38
Constellation
Draco
SAO
31050
Tycho2
3539-00465-1
HD
234676
last precise pa
97.9
last precise sep
9.38
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18340+5058 ES 785 AB 2004 9 99 8.9 9.56 10.00 G0V D 183358.79+505818.3
18340+5058 ES 785 AB 2010 11 99 9.2 9.56 10.00 G0V U 183358.79+505818.3

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