16579+4722 STFA 32AC

 
 
16h 57m 53.18s +47 22' 00.0" P.A. 260 sep 111.6 mag 7.93,8.05 Sp K0V dist. 18.3 pc (59.69 l.y.)
 
 
Coord 2000
16579+4722
Discov num
STFA 32
Comp
AC
Coord arcsec 2000
16 57 53.18 +47 22 00.0
Date first
1823
Date last
2011
Obs
31
Pa first
276
Pa last
260
P.A. Now (θ)
260°
Sep first
115.1
Sep last
111.6
Sep. Now (ρ)
111.6"
Mag pri
7.93
Mag sec
8.05
delta mag (ΔM)
0.12
Spectral class
K0V (yellow-orange)
Pri motion ra
-147
Sec motion ra
-143
Pri motion dec
+272
Sec motion dec
+245
Notes
N O Z (See Notes, Orbital solution, Parallax indicates components are physical)
rPM=0.088 (< 0.3, Physical double)
This double is physical.
 
 
16579+4722 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V1090 Her 46409 16579+4722 A 1874 AB 1908 2013 31 64 5.0 7.93 10.85 2.92 Y
Show 46409 16579+4722 STFA 32 AC 1823 2011 31 260 111.6 7.93 8.05 0.12 <===
Show 46409 16579+4722 A 1874 AD 1908 2000 3 246 25.9 7.93 15.00 7.07
Show 46409 16579+4722 STFA 32 BC 1991 2007 7 261 117.1 10.85 8.05 2.80
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
259.9
Precise sep
111.59
Var name
V1090 Her
Constellation
Hercules
SAO
46409
HIP
83020
Tycho2
3500-01780-1
HD
153557
GL
Gl 649.1A
BD
BD+47 2415
Distance
18.3
Distance ly
59.69
last precise pa
261.4
last precise sep
112.382
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16579+4722 STFA 32 AC 2001 23 261 112.1 7.93 8.05 ZDV 165753.31+472157.7
16579+4722 STFA 32 AC 2007 34 262 112.5 7.93 8.05 NODZ 165753.31+472157.7
16579+4722 STFA 32 AC 2011 36 260 111.6 7.93 8.05 NOVZ 165753.31+472157.7

If you need more information about this double, apply for a data request form to the WDS.