08270-5242 B 1606 (HD 71805)

 
 
08h 26m 57.83s -52° 42' 17.4" P.A. 115.00 sep 0.2 mag 6.99,7.85 Sp F6V+F7V dist. 54.05 pc (176.31 l.y.)
 
 
Coord 2000 08270-5242 Discov num B  1606 Comp Coord arcsec 2000 08 26 57.83 -52 42 17.4
Date first 1929 Date last 2020 Obs 62
Pa first 85 Pa last 115.3 P.A. Now (θ) 238°
Sep first 0.2 Sep last 0.18 Sep. Now (ρ) 0.078"
Mag pri 6.99 Mag sec 7.85 delta mag (ΔM) 0.86 Spectral class F6V+F7V (yellow-white/yellow-white)
Pri motion ra -095 Sec motion ra
Pri motion dec -046 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 71805 Constellation Vela SAO 235988 HIP 41426
Tycho2 8568-00346-1 Gaia DR2 5321371059920035456 HD 71805 GC 11574
CP CP-52 1480 Distance 54.05 Distance ly 176.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.66y± 0.08 Periastron (T)2011.84y± 0.01 Semi-major axis (a)0.152a± 0
Eccentricity (e)0.353± 0.002 Inclination (i)61.7°± 0.1 Longitude of periastron (ω)11.9°± 0.2
Node (Ω)277°± 0.2 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 59.9 0.101
2001 76.9 0.145
2002 86.4 0.179
2003 93.5 0.198
2004 99.6 0.204
2005 105.8 0.197
2006 112.9 0.178
2007 122.3 0.148
2008 137.7 0.110
2009 169.0 0.075
2010 222.3 0.070
2011 260.6 0.094
2012 287.1 0.094
2013 329.5 0.063
2014 36.6 0.071
2015 67.1 0.117
2016 80.6 0.158
2017 89.0 0.187
2018 95.6 0.202
2019 101.7 0.203
2020 108.0 0.192
2021 115.7 0.169
2022 126.6 0.136
2023 145.7 0.097
2024 186.0 0.068
2025 238.0 0.078
2026 269.8 0.099
2027 297.9 0.084
2028 353.4 0.058
2029 50.6 0.086
2030 72.7 0.132
2031 83.8 0.169
2032 91.4 0.193
2033 97.7 0.204
2034 103.8 0.201
2035 110.4 0.185
2036 118.9 0.159
2037 131.7 0.123
2038 156.2 0.085
2039 205.0 0.067
2040 250.7 0.087
2041 278.5 0.099
2042 311.8 0.073
2043 18.0 0.061
2044 60.4 0.102
2045 77.1 0.146
2046 86.6 0.179
2047 93.6 0.198
2048 99.7 0.204
2049 105.9 0.197
2050 113.0 0.177


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds08270-5242b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic