17247+3802 COU1142AB

 
 
17h 24m 42.41s +38 02' 10.5" P.A. 219 sep 2.1 mag 8.18,12.21 Sp G5 dist. 50.61 pc (165.09 l.y.)
 
 
Coord 2000
17247+3802
Discov num
COU1142
Comp
AB
Coord arcsec 2000
17 24 42.41 +38 02 10.5
Date first
1974
Date last
2009
Obs
7
Pa first
217
Pa last
219
P.A. Now (θ)
219°
Sep first
1.7
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
8.18
Mag sec
12.21
delta mag (ΔM)
4.03
Spectral class
G5 (yellow)
Pri motion ra
-081
Sec motion ra
-064
Pri motion dec
-194
Sec motion dec
-196
Notes
N (See Notes)
rPM=0.081 (< 0.3, Physical double)
This double is physical.
 
 
17247+3802 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 66024 17247+3802 HSL 1 Aa,Ab 2001 2014 27 52 0.0 8.28 8.58 0.30 Y
Show 66024 17247+3802 HSL 1 Aa,Ac 2002 2014 31 60 0.2 8.28 10.78 2.50 Y
Show 66024 17247+3802 COU1142 AB 1974 2009 7 219 2.1 8.18 12.21 4.03 <===
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
218.6
Precise sep
2.093
Constellation
Hercules
SAO
66024
HIP
85209
Tycho2
3086-01992-1
HD
157948
BD
BD+38 2932
Distance
50.61
Distance ly
165.09
last precise pa
218.6
last precise sep
2.093
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17247+3802 COU1142 AB 1998 6 217 2.0 8.18 12.21 G5 D 172442.41+380210.5
17247+3802 COU1142 AB 2009 7 219 2.1 8.18 12.21 G5 N D 172442.41+380210.5

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