13342-1623 RST 3844 (HD 117968)

 
 
13h 34m 10.74s -16° 23' 20.2" P.A. 154.00 sep 0.1 mag 9.50,9.50 Sp F6V dist. 141.84 pc (462.68 l.y.)
 
 
Coord 2000 13342-1623 Discov num RST3844 Comp Coord arcsec 2000 13 34 10.74 -16 23 20.2
Date first 1937 Date last 2022 Obs 19
Pa first 84 Pa last 154.3 P.A. Now (θ) 132.5° (calc)
Sep first 0.4 Sep last 0.092 Sep. Now (ρ) 0.122" (calc)
Mag pri 9.50 Mag sec 9.50 delta mag (ΔM) 0 Spectral class F6V (yellow-white)
Pri motion ra +039 Sec motion ra
Pri motion dec -048 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 117968 Constellation Virgo SAO 158009 HIP 66203
Tycho2 6121-00387-1 Gaia DR2 3603943552411556992 HD 117968 BD BD-15 3694
Distance 141.84 Distance ly 462.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)121.85y± 2.7 Periastron (T)2010.94y± 0.49 Semi-major axis (a)0.255a± 0.003
Eccentricity (e)0.432± 0.007 Inclination (i)117.6°± 0.7 Longitude of periastron (ω)19.4°± 2.4
Node (Ω)264.5°± 1.1 Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 298.8 0.127
2001 294.0 0.132
2002 289.5 0.136
2003 285.3 0.140
2004 281.3 0.144
2005 277.5 0.146
2006 273.8 0.148
2007 270.2 0.149
2008 266.6 0.148
2009 262.9 0.146
2010 259.0 0.143
2011 255.0 0.138
2012 250.6 0.132
2013 245.7 0.125
2014 240.2 0.117
2015 234.0 0.109
2016 226.7 0.101
2017 218.2 0.094
2018 208.4 0.088
2019 197.5 0.084
2020 185.8 0.083
2021 174.2 0.084
2022 163.4 0.088
2023 153.7 0.095
2024 145.4 0.103
2025 138.4 0.112
2026 132.5 0.122
2027 127.6 0.133
2028 123.4 0.144
2029 119.8 0.155
2030 116.7 0.166
2031 114.0 0.177
2032 111.6 0.188
2033 109.4 0.198
2034 107.5 0.209
2035 105.7 0.219
2036 104.1 0.228
2037 102.6 0.238
2038 101.3 0.247
2039 100.0 0.255
2040 98.8 0.263
2041 97.7 0.271
2042 96.6 0.279
2043 95.6 0.286
2044 94.6 0.293
2045 93.7 0.299
2046 92.8 0.305
2047 92.0 0.311
2048 91.2 0.316
2049 90.4 0.321
2050 89.6 0.326


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds13342-1623a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic