09243-3926 FIN 348 (HD 81411)

 
 
09h 24m 16.28s -39 25' 31.6" P.A. 193.00 sep 0.1 mag 6.70,7.07 Sp A7V: dist. 149.03 pc (486.14 l.y.)
 
 
Coord 2000 09243-3926 Discov num FIN 348 Comp Coord arcsec 2000 09 24 16.28 -39 25 31.6
Date first 1959 Date last 2021 Obs 24
Pa first 306 Pa last 192.9 P.A. Now (θ) 161.6°
Sep first 0.1 Sep last 0.083 Sep. Now (ρ) 0.071"
Mag pri 6.70 Mag sec 7.07 delta mag (ΔM) 0.37 Spectral class A7V: (white)
Pri motion ra +017 Sec motion ra
Pri motion dec -024 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81411 Constellation Vela SAO 200330 HIP 46114
Tycho2 7695-00585-1 Gaia DR2 5429561629701428096 HD 81411 HR 3737
GC 12983 CD CD-38 5541 CP CP-38 3294 Distance 149.03
Distance ly 486.14
 
 
ORBITAL ELEMENTS
 
 
Period (P)41.7y± 1.02 Periastron (T)1983.3y± 0.76 Semi-major axis (a)0.123a± 0.003
Eccentricity (e)0.454± 0.03 Inclination (i)159.4°± 7.1 Longitude of periastron (ω)341.9°± 11.6
Node (Ω)97°± 10.2 Notesn ReferenceTok2021f
Equinox Last observation2021 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 308.8 0.170
2001 305.1 0.173
2002 301.5 0.175
2003 298.0 0.177
2004 294.5 0.178
2005 291.1 0.178
2006 287.6 0.177
2007 284.2 0.176
2008 280.6 0.174
2009 277.0 0.172
2010 273.2 0.168
2011 269.3 0.164
2012 265.1 0.160
2013 260.7 0.154
2014 255.9 0.148
2015 250.7 0.141
2016 244.9 0.133
2017 238.3 0.124
2018 230.7 0.115
2019 221.8 0.106
2020 211.0 0.096
2021 197.8 0.086
2022 181.5 0.078
2023 161.6 0.071
2024 138.5 0.067
2025 114.0 0.067
2026 90.3 0.069
2027 68.8 0.074
2028 50.3 0.080
2029 34.6 0.087
2030 21.4 0.095


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



 
 


wds09243-3926e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic