13344-5931 TOK 403 (HD 117854)

 
 
13h 34m 25.41s -59° 30' 44.4" P.A. 152.00 sep 0.0 mag 7.60,10.40 Sp G0V dist. 53.79 pc (175.46 l.y.)
 
 
Coord 2000 13344-5931 Discov num TOK 403 Comp Coord arcsec 2000 13 34 25.41 -59 30 44.4
Date first 2014 Date last 2021 Obs 11
Pa first 314 Pa last 152.4 P.A. Now (θ) 152.4°
Sep first 0.1 Sep last 0.029 Sep. Now (ρ) 0.029"
Mag pri 7.60 Mag sec 10.40 delta mag (ΔM) 2.8 Spectral class G0V (yellow)
Pri motion ra -277 Sec motion ra
Pri motion dec -184 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 117854 Constellation Centaurus SAO 240951 HIP 66230
Tycho2 8675-02910-1 HD 117854 GC 18331 CD CD-58 5120
CP CP-58 4943 Distance 53.79 Distance ly 175.46
 
 
ORBITAL ELEMENTS
 
 
Period (P)18.44y Periastron (T)2021.11y Semi-major axis (a)0.1441a
Eccentricity (e)0.385 Inclination (i)117.7° Longitude of periastron (ω)265.5°
Node (Ω)77.2° Notesn ReferenceTok2020e
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 262.2 0.126
2001 249.4 0.105
2002 224.2 0.064
2003 144.3 0.044
2004 96.5 0.086
2005 80.2 0.121
2006 69.9 0.137
2007 61.0 0.141
2008 51.9 0.135
2009 41.6 0.124
2010 29.1 0.112
2011 13.4 0.100
2012 354.6 0.093
2013 334.5 0.094
2014 315.8 0.101
2015 300.3 0.112
2016 287.7 0.123
2017 276.9 0.131
2018 266.9 0.130
2019 255.7 0.117
2020 238.4 0.084
2021 187.5 0.043
2022 109.9 0.066
2023 86.1 0.108
2024 74.1 0.132
2025 64.9 0.140
2026 56.0 0.138
2027 46.4 0.129
2028 34.9 0.117
2029 20.7 0.105
2030 3.2 0.096


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



 
 


wds13344-5931a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic