13117-2633 FIN 305 (HD 114576)

 
 
13h 11m 39.24s -26 33' 06.2" P.A. 65.00 sep 0.1 mag 7.20,7.43 Sp A5Vn dist. 110.62 pc (360.84 l.y.)
 
 
Coord 2000 13117-2633 Discov num FIN 305 Comp Coord arcsec 2000 13 11 39.24 -26 33 06.2
Date first 1933 Date last 2021 Obs 58
Pa first 96 Pa last 65.1 P.A. Now (θ) 124°
Sep first 0.2 Sep last 0.071 Sep. Now (ρ) 0.057"
Mag pri 7.20 Mag sec 7.43 delta mag (ΔM) 0.23 Spectral class A5Vn (white)
Pri motion ra -068 Sec motion ra
Pri motion dec +004 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 114576 Constellation Hydra SAO 181446 HIP 64375
Tycho2 6707-01177-1 Gaia DR2 6186776492967556480 HD 114576 HR 4978
GC 17861 CD CD-25 9653 CP CP-25 5109 FK5 1341
Distance 110.62 Distance ly 360.84
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)19.97y Periastron (T)2022.103y Semi-major axis (a)0.095a
Eccentricity (e)0.941 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)273.4° Notesn ReferenceTok2018i
Equinox2000 Last observation2018 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 74.4 0.099
2001 66.2 0.067
2002 19.7 0.015
2003 124.5 0.056
2004 114.0 0.091
2005 108.9 0.117
2006 105.5 0.136
2007 102.8 0.152
2008 100.6 0.164
2009 98.7 0.173
2010 96.9 0.179
2011 95.2 0.183
2012 93.6 0.184
2013 92.0 0.183
2014 90.3 0.180
2015 88.6 0.174
2016 86.7 0.166
2017 84.5 0.155
2018 82.0 0.140
2019 78.8 0.122
2020 74.2 0.098
2021 65.8 0.066
2022 10.7 0.012
2023 124.0 0.057
2024 113.8 0.092
2025 108.8 0.117
2026 105.4 0.137
2027 102.8 0.152
2028 100.6 0.164
2029 98.6 0.173
2030 96.8 0.179


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



 
 


wds13117-2633d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)40.7y Periastron (T)2006.5y Semi-major axis (a)0.219a
Eccentricity (e)0.045 Inclination (i)98.6° Longitude of periastron (ω)304.5°
Node (Ω)93.3° Notesn ReferenceDoc2020d
Equinox2000 Last observation2019 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 257.3 0.103
2001 248.8 0.073
2002 229.1 0.045
2003 178.3 0.032
2004 132.6 0.049
2005 115.7 0.077
2006 108.0 0.107
2007 103.6 0.135
2008 100.7 0.159
2009 98.5 0.180
2010 96.7 0.196
2011 95.2 0.207
2012 93.7 0.212
2013 92.3 0.213
2014 90.9 0.208
2015 89.4 0.197
2016 87.6 0.183
2017 85.5 0.164
2018 82.8 0.141
2019 78.9 0.116
2020 72.7 0.089
2021 61.1 0.061
2022 33.8 0.039
2023 342.8 0.036
2024 309.9 0.056
2025 296.2 0.083
2026 289.2 0.110
2027 285.0 0.136
2028 282.2 0.160
2029 280.0 0.181
2030 278.2 0.198


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



 
 


wds13117-2633g.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic