17217+3958 MCA 47 (V819 Her)

 
 
17h 21m 43.61s +39° 58' 29.3" P.A. 45.00 sep 0.0 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 2018 Obs 102
Pa first 278 Pa last 45.2 P.A. Now (θ) 179.6°
Sep first 0.0 Sep last 0.044 Sep. Now (ρ) 0.088"
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 Gaia DR2 1346932740806216960 HD 157482 HR 6469
GC 23487 BD BD+40 3136 Distance 73.96 Distance ly 241.26
 
 
ORBITAL ELEMENTS
 
 
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 Notesn ReferenceMut2008
Equinox2000 Last observation2006 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 166.2 0.106
2001-01-01 182.0 0.084
2002-01-01 217.7 0.048
2003-01-01 3.7 0.017
2004-01-01 145.0 0.087
2005-01-01 159.5 0.108
2006-01-01 172.7 0.098
2007-01-01 193.8 0.068
2008-01-01 262.1 0.034
2009-01-01 129.3 0.054
2010-01-01 152.6 0.102
2011-01-01 165.4 0.107
2012-01-01 180.8 0.086
2013-01-01 214.1 0.050
2014-01-01 340.2 0.022
2015-01-01 143.8 0.084
2016-01-01 158.7 0.108
2017-01-01 171.8 0.100
2018-01-01 192.0 0.070
2019-01-01 254.9 0.035
2020-01-01 125.9 0.048
2021-01-01 151.7 0.101
2022-01-01 164.6 0.107
2023-01-01 179.6 0.088
2024-01-01 210.7 0.052
2025-01-01 324.9 0.026
2026-01-01 142.5 0.082
2027-01-01 158.0 0.108
2028-01-01 171.0 0.101
2029-01-01 190.3 0.073
2030-01-01 248.1 0.036


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



 
 


wds17217%2B3958b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #1
 
 
Identifier17217+3958 MCA 47 B
coord_arcsec_2000172143.61+395829.3
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 Notesn ReferenceMut2008
Equinox2000 Last observation2006 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 68.1
2001 315.8 0.001
2002 303.1 0.001
2003 157.4
2004 131.9 0.001
2005 114.0
2006 321.9
2007 308.1 0.001
2008 247.5
2009 135.9 0.001
2010 123.5 0.001
2011 338.7
2012 311.9 0.001
2013 293.7
2014 142.1
2015 128.3 0.001
2016 73.5
2017 316.0 0.001
2018 303.4 0.001
2019 159.0
2020 132.1 0.001
2021 114.7
2022 322.4
2023 308.3 0.001
2024 252.9
2025 136.2 0.001
2026 123.8 0.001
2027 340.5
2028 312.1 0.001
2029 294.5
2030 142.6


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



 
 


wds17217%2B3958v.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
 
 
SUSPECTED ORBITAL ELEMENTS SOLUTION #2
 
 
Identifier17217+3958 MCA 47 B
coord_arcsec_2000172143.61+395829.3
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 Notesn ReferenceCIA2011c
Equinox2000 Last observation2009 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 303.2
2001 133.2 0.001
2002 130.0 0.001
2003 333.2
2004 312.0 0.001
2005 308.4
2006 135.8
2007 131.1 0.001
2008 123.4
2009 313.3 0.001
2010 310.0 0.001
2011 154.9
2012 132.0 0.001
2013 128.4
2014 315.8
2015 311.1 0.001
2016 303.7
2017 133.3 0.001
2018 130.0 0.001
2019 336.9
2020 312.1 0.001
2021 308.5
2022 135.9
2023 131.1 0.001
2024 123.9
2025 313.3 0.001
2026 310.1 0.001
2027 159.3
2028 132.1 0.001
2029 128.5
2030 316.0


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



 
 


wds17217%2B3958x.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic