02009-4350 I 265 (HD 12439)

 
 
02h 00m 52.92s -43° 49' 51.4" P.A. 227.00 sep 0.6 mag 8.63,9.64 Sp F7V dist. 83.06 pc (270.94 l.y.)
 
 
Coord 2000 02009-4350 Discov num I   265 Comp Coord arcsec 2000 02 00 52.92 -43 49 51.4
Date first 1898 Date last 2014 Obs 28
Pa first 20 Pa last 227.3 P.A. Now (θ) 227.3°
Sep first 0.6 Sep last 0.617 Sep. Now (ρ) 0.617"
Mag pri 8.63 Mag sec 9.64 delta mag (ΔM) 1.01 Spectral class F7V (yellow-white)
Pri motion ra -013 Sec motion ra
Pri motion dec -056 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 12439 Constellation Phoenix SAO 215737 HIP 9408
Tycho2 7556-00776-1 Gaia DR2 4956337838053704704 HD 12439 GC 2441
CD CD-44 587 CP CP-44 235 Distance 83.06 Distance ly 270.94
 
 
ORBITAL ELEMENTS
 
 
Period (P)775y Periastron (T)1977.26y Semi-major axis (a)1.209a
Eccentricity (e)0.744 Inclination (i)68.9° Longitude of periastron (ω)271.2°
Node (Ω)222.6° Notes ReferenceHrt2010a
Equinox2000 Last observation2008 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 219.0 0.466
2001 219.8 0.479
2002 220.5 0.492
2003 221.1 0.504
2004 221.7 0.515
2005 222.3 0.527
2006 222.9 0.538
2007 223.5 0.548
2008 224.0 0.558
2009 224.5 0.568
2010 225.0 0.578
2011 225.5 0.587
2012 226.0 0.596
2013 226.4 0.605
2014 226.9 0.613
2015 227.3 0.621
2016 227.7 0.629
2017 228.1 0.637
2018 228.5 0.644
2019 228.9 0.652
2020 229.3 0.659
2021 229.7 0.665
2022 230.0 0.672
2023 230.4 0.679
2024 230.7 0.685
2025 231.1 0.691
2026 231.4 0.697
2027 231.7 0.702
2028 232.1 0.708
2029 232.4 0.713
2030 232.7 0.719


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


 
  


wds02009-4350b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic