17217+3958 MCA  47 (V819 Her)

 
 
17H 21M 43.61S +39 58' 29.3" P.A. 192 SEP 0.07 MAG 6.10,6.42 SP F9V DIST. 73.96 PC (241.26 L.Y.)
 
 
Coord 2000
17217+3958
Discov num
MCA  47
Comp
Coord arcsec 2000
17 21 43.61 +39 58 29.3
Date first
1980
Date last
2014
Obs
88
Pa first
278
Pa last
129
P.A. Now (θ)
192°
Sep first
0.0
Sep last
0.1
Sep. Now (ρ)
0.07"
Mag pri
6.10
Mag sec
6.42
delta mag (ΔM)
0.32
Spectral class
F9V (yellow-white)
Pri motion ra
+014
Sec motion ra
Pri motion dec
-054
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V819 Her
Constellation
Hercules
SAO
46664
HIP
84949
Tycho2
3090-01896-1
HD
157482
HR
6469
BD
BD+40 3136
Distance
73.96
Distance ly
241.26
last precise pa
128.7
last precise sep
0.051
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)2019.66d (5.53y)± 0.35 Periastron (T)52627.5m (2002.966y)± 1.3 Semi-major axis (a)74.41m± 0.67
Eccentricity (e)0.67974± 0.00066 Inclination (i)56.4°± 0.13 Longitude of periastron (ω)222.5°± 0.22
Node (Ω)141.96°± 0.12 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000-01-01 0.106 166.2
2001-01-01 0.084 182.0
2002-01-01 0.048 217.7
2003-01-01 0.017 3.7
2004-01-01 0.087 145.0
2005-01-01 0.108 159.5
2006-01-01 0.098 172.7
2007-01-01 0.068 193.8
2008-01-01 0.034 262.1
2009-01-01 0.054 129.3
2010-01-01 0.102 152.6
2011-01-01 0.107 165.4
2012-01-01 0.086 180.8
2013-01-01 0.050 214.1
2014-01-01 0.022 340.2
2015-01-01 0.084 143.8
2016-01-01 0.108 158.7
2017-01-01 0.100 171.8
2018-01-01 0.070 192.0
2019-01-01 0.035 254.9
2020-01-01 0.048 125.9
2021-01-01 0.101 151.7
2022-01-01 0.107 164.6
2023-01-01 0.088 179.6
2024-01-01 0.052 210.7
2025-01-01 0.026 324.9
2026-01-01 0.082 142.5
2027-01-01 0.108 158.0
2028-01-01 0.101 171.0
2029-01-01 0.073 190.3
2030-01-01 0.036 248.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)53.511192h± 0.000046 Periastron (T)52627.17m (2002.966y)± 0.29 Semi-major axis (a)0.6655m± 0.0058
Eccentricity (e)0.0041± 0.0033 Inclination (i)80.7°± 0.38 Longitude of periastron (ω)227°± 47
Node (Ω)131.1°± 4.1 Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 68.1
2001 0.001 315.8
2002 0.001 303.1
2003 157.4
2004 0.001 131.9
2005 114.0
2006 321.9
2007 0.001 308.1
2008 247.5
2009 0.001 135.9
2010 0.001 123.5
2011 338.7
2012 0.001 311.9
2013 293.7
2014 142.1
2015 0.001 128.3
2016 73.5
2017 0.001 316.0
2018 0.001 303.4
2019 159.0
2020 0.001 132.1
2021 114.7
2022 322.4
2023 0.001 308.3
2024 252.9
2025 0.001 136.2
2026 0.001 123.8
2027 340.5
2028 0.001 312.1
2029 294.5
2030 142.6

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)53.511202h± 0.000038 Periastron (T)52626.872m (2002.965y)± 0.054 Semi-major axis (a)0.6631m± 0.0221
Eccentricity (e)0 Inclination (i)87.6°± 9.7 Longitude of periastron (ω)
Node (Ω)131.3°± 4 Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 303.2
2001 0.001 133.2
2002 0.001 130.0
2003 333.2
2004 0.001 312.0
2005 308.4
2006 135.8
2007 0.001 131.1
2008 123.4
2009 0.001 313.3
2010 0.001 310.0
2011 154.9
2012 0.001 132.0
2013 128.4
2014 315.8
2015 0.001 311.1
2016 303.7
2017 0.001 133.3
2018 0.001 130.0
2019 336.9
2020 0.001 312.1
2021 308.5
2022 135.9
2023 0.001 131.1
2024 123.9
2025 0.001 313.3
2026 0.001 310.1
2027 159.3
2028 0.001 132.1
2029 128.5
2030 316.0

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic