18073+0934 STT 342Aa,Ab

 
 
18H 07M 21.02S +09 33' 49.2" P.A. 156 SEP 1.6 MAG 3.74,7.50 SP A4III DIST. 26.63 PC (86.87 L.Y.)
 
 
Coord 2000
18073+0934
Discov num
STT 342
Comp
Aa,Ab
Coord arcsec 2000
18 07 21.02 +09 33 49.2
Date first
1842
Date last
1876
Obs
8
Pa first
157
Pa last
156
P.A. Now (θ)
156°
Sep first
1.3
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
3.74
Mag sec
7.50
delta mag (ΔM)
3.76
Spectral class
A4III (white)
Pri motion ra
-062
Sec motion ra
Pri motion dec
+080
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18073+0934 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 123142 18073+0934 STT 342 Aa,Ab 1842 1876 8 156 1.6 3.74 7.50 3.76 <===
Show 72 Oph 123142 18073+0934 STT 342 AB 1890 2015 9 298 25.1 3.74 13.90 10.16
Show 123142 18073+0934 STT 342 AC 1827 2015 11 163 64.3 3.74 11.45 7.71
Show 123142 18073+0934 DAL 36 AD 2007 2010 2 48 24.2 3.74 14.80 11.06
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
SAO
123142
HIP
88771
HD
165777
HR
6771
GC
24695
GL
Wo 9615A
BD
BD+09 3564
Flamsteed
72 Ophiuchi
Flamsteed name
72 Oph
Distance
26.63
Distance ly
86.87
last precise pa
156
last precise sep
1.6