00533-4530 B 644 (HD 5218)

 
 
00h 53m 20.22s -45 30' 20.7" P.A. 359.00 sep 0.3 mag 9.05,9.05 Sp F3III/IV dist. 298.51 pc (973.74 l.y.)
 
 
Coord 2000 00533-4530 Discov num B   644 Comp Coord arcsec 2000 00 53 20.22 -45 30 20.7
Date first 1926 Date last 2021 Obs 23
Pa first 256 Pa last 359.2 P.A. Now (θ) 359.2°
Sep first 0.2 Sep last 0.277 Sep. Now (ρ) 0.277"
Mag pri 9.05 Mag sec 9.05 delta mag (ΔM) 0 Spectral class F3III/IV (yellow-white)
Pri motion ra +020 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 5218 Constellation Phoenix SAO 215279 HIP 4177
Tycho2 8031-00956-1 HD 5218 CD CD-46 241 CP CP-46 88
Distance 298.51 Distance ly 973.74
 
 
ORBITAL ELEMENTS
 
 
Period (P)473.4y Periastron (T)2460.04y Semi-major axis (a)0.366a
Eccentricity (e)0.233 Inclination (i)51.4° Longitude of periastron (ω)343.5°
Node (Ω)341.6° Notes ReferenceMsn2019
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 341.7 0.283
2001 342.5 0.283
2002 343.3 0.284
2003 344.0 0.284
2004 344.8 0.284
2005 345.6 0.284
2006 346.3 0.284
2007 347.1 0.284
2008 347.9 0.284
2009 348.6 0.284
2010 349.4 0.283
2011 350.2 0.283
2012 351.0 0.283
2013 351.7 0.283
2014 352.5 0.282
2015 353.3 0.282
2016 354.1 0.281
2017 354.8 0.281
2018 355.6 0.280
2019 356.4 0.279
2020 357.2 0.279
2021 358.0 0.278
2022 358.8 0.277
2023 359.6 0.276
2024 0.4 0.276
2025 1.2 0.275
2026 2.1 0.274
2027 2.9 0.273
2028 3.7 0.272
2029 4.6 0.271
2030 5.4 0.270


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



 
 


wds00533-4530b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic