17247+3802 HSL   1Aa,Ab

 
 
17h 24m 42.41s +38 02' 10.5" P.A. 52 mag 8.28,8.58 Sp G5V+G8V dist. 50.61 pc (165.09 l.y.)
 
 
Coord 2000
17247+3802
Discov num
HSL   1
Comp
Aa,Ab
Coord arcsec 2000
17 24 42.41 +38 02 10.5
Date first
2001
Date last
2014
Obs
27
Pa first
231
Pa last
52
P.A. Now (θ)
52°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
8.28
Mag sec
8.58
delta mag (ΔM)
0.3
Spectral class
G5V+G8V (yellow/yellow)
Pri motion ra
-081
Sec motion ra
Pri motion dec
-194
Sec motion dec
Notes
N O (See Notes, Orbital solution)
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
51.9
Precise sep
0.023
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
51.9
last precise sep
0.023
 
 
ORBITAL ELEMENTS
 
 
Period (P)1.2283y Periastron (T)1986.3731y Semi-major axis (a)31.6m± 0.6
Eccentricity (e)0.1634 Inclination (i)81.9°± 1.8 Longitude of periastron (ω)356.6°
Node (Ω)56.7°± 1.5 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.020 64.2
2001 0.018 47.6
2002 0.018 250.0
2003 0.036 237.6
2004 0.026 229.0
2005 0.009 82.3
2006 0.026 54.7
2007 0.006 287.1
2008 0.033 240.5
2009 0.033 233.1
2010 0.007 198.1
2011 0.025 59.9
2012 0.011 37.0
2013 0.024 244.8
2014 0.037 235.9
2015 0.019 224.5
2016 0.017 68.0
2017 0.022 50.8
2018 0.013 255.7
2019 0.036 238.6
2020 0.029 230.8
2021 0.005 109.2
2022 0.026 56.6
2023 0.005 348.6
2024 0.030 241.8
2025 0.035 234.2
2026 0.011 214.3
2027 0.023 62.2
2028 0.016 44.4
2029 0.021 247.4
2030 0.037 236.9

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds17247%2B3802c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17247+3802 HSL 1 Aa,Ab 2005 8 239 0.0 8.63 9.35 G5 NO 172442.41+380210.5
17247+3802 HSL 1 Aa,Ab 2010 17 242 0.0 8.28 8.58 G5 NOD 172442.41+380210.5
17247+3802 HSL 1 Aa,Ab 2012 19 227 0.0 8.28 8.58 G5 NOD 172442.41+380210.5
17247+3802 HSL 1 Aa,Ab 2014 23 52 0.0 8.28 8.58 G5V G8V NO 172442.41+380210.5

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