09264-4215 B 1122 (HD 81782)

 
 
09h 26m 24.58s -42° 15' 04.2" P.A. 240.00 sep 0.2 mag 8.05,7.17 Sp A0 dist. 321.54 pc (1048.86 l.y.)
 
 
Coord 2000 09264-4215 Discov num B  1122 Comp Coord arcsec 2000 09 26 24.58 -42 15 04.2
Date first 1928 Date last 2018 Obs 25
Pa first 160 Pa last 239.8 P.A. Now (θ) 239.8°
Sep first 0.2 Sep last 0.155 Sep. Now (ρ) 0.155"
Mag pri 8.05 Mag sec 7.17 delta mag (ΔM) 0.88 Spectral class A0 (white)
Pri motion ra +002 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81782 Constellation Vela SAO 221166 HIP 46290
Tycho2 7699-00689-1 Gaia DR2 5426005220682750080 HD 81782 GC 13029
CD CD-41 5091 CP CP-41 3702 Distance 321.54 Distance ly 1048.86
 
 
ORBITAL ELEMENTS
 
 
Period (P)225.25y Periastron (T)2035.97y Semi-major axis (a)0.298a
Eccentricity (e)0.808 Inclination (i)67.7° Longitude of periastron (ω)258°
Node (Ω)88.4° Notes ReferenceDoc2019b
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 217.7 0.164
2001 218.8 0.164
2002 220.0 0.163
2003 221.2 0.163
2004 222.4 0.162
2005 223.6 0.162
2006 224.9 0.161
2007 226.1 0.161
2008 227.3 0.160
2009 228.6 0.159
2010 229.8 0.159
2011 231.1 0.158
2012 232.4 0.157
2013 233.7 0.156
2014 235.0 0.155
2015 236.3 0.154
2016 237.7 0.153
2017 239.0 0.151
2018 240.4 0.150
2019 241.9 0.148
2020 243.3 0.146
2021 244.8 0.144
2022 246.4 0.142
2023 248.0 0.139
2024 249.7 0.136
2025 251.4 0.133
2026 253.3 0.129
2027 255.3 0.124
2028 257.4 0.119
2029 259.8 0.113
2030 262.5 0.105


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



 
 


wds09264-4215c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic