17465+2743 STF2220A,BC (Mu Her)

 
 
17h 46m 27.51s +27 43' 14.3" P.A. 249 sep 35.5 mag 3.49,9.78 Sp G5IV+M3.5 dist. 8.31 pc (27.11 l.y.)
 
 
Coord 2000
17465+2743
Discov num
STF2220
Comp
A,BC
Coord arcsec 2000
17 46 27.51 +27 43 14.3
Date first
1781
Date last
2015
Obs
119
Pa first
240
Pa last
249
P.A. Now (θ)
249°
Sep first
18.0
Sep last
35.5
Sep. Now (ρ)
35.5"
Mag pri
3.49
Mag sec
9.78
delta mag (ΔM)
6.29
Spectral class
G5IV+M3.5 (yellow/red)
Pri motion ra
-292
Sec motion ra
-343
Pri motion dec
-750
Sec motion dec
-744
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.063 (< 0.3, Physical double)
This double is physical.
 
 
17465+2743 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85397 17465+2743 TRN 2 Aa,Ab 1998 2015 23 262 1.7 3.49 12.70 9.21 Y
Show Mu Her 85397 17465+2743 STF2220 A,BC 1781 2015 119 249 35.5 3.49 9.78 6.29 <===
Show 85397 17465+2743 ABT 14 AD 1921 2002 3 5 321.1 3.49 12.33 8.84
Show 85397 17465+2743 AC 7 BC 1854 2015 357 320 0.6 10.20 10.70 0.50 Y
Show 85397 17465+2743 ABT 14 BC,D 1921 2000 2 10 335.0 9.78 12.33 2.55
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
249
Precise sep
35.5
Name
Mu Her
Constellation
Hercules
SAO
85397
HIP
86974
Tycho2
2085-03062-1
HD
161797
HR
6623
GC
24138
GL
Gl 695A
BD
BD+27 2888
Bayer
Mu Herculis
Bayer name
Mu Her
Flamsteed
86 Herculis
Flamsteed name
86 Her
Distance
8.31
Distance ly
27.11
last precise pa
249
last precise sep
35.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17465+2743 STF2220 A,BC 2007 108 248 34.9 3.42 9.78 G5IV N DV 174627.72+274321.0
17465+2743 STF2220 A,BC 2010 112 249 35.1 3.49 9.78 G5IV NVD 174627.51+274314.3
17465+2743 STF2220 A,BC 2012 114 247 35.2 3.49 9.78 G5IV NVD 174627.51+274314.3
17465+2743 STF2220 A,BC 2013 116 249 35.6 3.49 9.78 G5IV NVD 174627.51+274314.3
17465+2743 STF2220 A,BC 2014 118 251 36.0 3.49 9.78 G5IV+M3.5 NVD 174627.51+274314.3
17465+2743 STF2220 A,BC 2015 119 249 35.5 3.49 9.78 G5IV+M3.5 NV 174627.51+274314.3

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