18426+5532 ISO   7Aa,Ab

 
 
18H 42M 37.96S +55 32' 21.8" P.A. 135 SEP 0.2 MAG 5.04, SP B9.5PHG: DIST. 104.38 PC (340.49 L.Y.)
 
 
Coord 2000
18426+5532
Discov num
ISO   7
Comp
Aa,Ab
Coord arcsec 2000
18 42 37.96 +55 32 21.8
Date first
1987
Date last
1987
Obs
1
Pa first
135
Pa last
135
P.A. Now (θ)
135°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
5.04
Mag sec
delta mag (ΔM)
Spectral class
B9.5pHg: (blue-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
+024
Sec motion dec
Notes
N X (See Notes, Dubious double)
Nature of this double is uncertain.
 
 
18426+5532 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 31119 18426+5532 ISO 7 Aa,Ab 1987 1987 1 135 0.2 5.04 <===
Show 46 Dra 31119 18426+5532 H 6 37 AB 1879 2003 6 158 146.3 5.01 11.04 6.03
Show 31119 18426+5532 H 6 37 AC 1852 2007 13 340 330.8 5.01 8.24 3.23
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Other name
c Dra
Constellation
Draco
SAO
31119
HIP
91755
HD
173524
HR
7049
GC
25635
BD
BD+55 2107
Flamsteed
46 Draconis
Flamsteed name
46 Dra
Distance
104.38
Distance ly
340.49
last precise pa
135
last precise sep
0.2