17237+3709 STF2161AB (Rho Her)

 
 
17H 23M 40.97S +37 08' 45.3" P.A. 320 SEP 4.1 MAG 4.50,5.40 SP B9.5III DIST. 120.63 PC (393.5 L.Y.)
 
 
Coord 2000
17237+3709
Discov num
STF2161
Comp
AB
Coord arcsec 2000
17 23 40.97 +37 08 45.3
Date first
1779
Date last
2016
Obs
402
Pa first
300
Pa last
320
P.A. Now (θ)
320°
Sep first
3.0
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
4.50
Mag sec
5.40
delta mag (ΔM)
0.9
Spectral class
B9.5III (blue-white)
Pri motion ra
-041
Sec motion ra
-039
Pri motion dec
+001
Sec motion dec
+009
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17237+3709 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 66000 17237+3709 MCA 48 Aa,Ab 1981 2008 8 32 0.3 4.90 5.90 1.00
Show Rho Her 66000 17237+3709 STF2161 AB 1779 2016 402 320 4.1 4.50 5.40 0.90 <===
Show 66000 17237+3709 STF2161 AC 1911 2002 4 222 117.7 4.50 13.53 9.03
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Rho Her
Constellation
Hercules
SAO
66000
HIP
85112
HD
157778
HR
6484
GC
23543
BD
BD+37 2878
Bayer
Rho Herculis
Bayer name
Rho Her
Flamsteed
75 Herculis
Flamsteed name
75 Her
Distance
120.63
Distance ly
393.5
last precise pa
320.3
last precise sep
4.05