09488-5237 B 1663 (HD 85228)

 
 
09h 48m 46.74s -52 36' 56.5" P.A. 326.00 sep 1.3 mag 8.10,11.75 Sp K1V dist. 26.01 pc (84.84 l.y.)
 
 
Coord 2000 09488-5237 Discov num B  1663 Comp Coord arcsec 2000 09 48 46.74 -52 36 56.5
Date first 1929 Date last 2021 Obs 35
Pa first 278 Pa last 326.2 P.A. Now (θ) 326.2°
Sep first 1.2 Sep last 1.267 Sep. Now (ρ) 1.267"
Mag pri 8.10 Mag sec 11.75 delta mag (ΔM) 3.65 Spectral class K1V (yellow-orange)
Pri motion ra -252 Sec motion ra
Pri motion dec +233 Sec motion dec
Notes O W (Orbital solution, )
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 85228 Constellation Vela SAO 237371 HIP 48133
Tycho2 8598-00309-1 Gaia DR2 5309386795502987776 HD 85228 GL Gl 368.1A
CD CD-52 3377 CP CP-52 2830 Distance 26.01 Distance ly 84.84
 
 
ORBITAL ELEMENTS
 
 
Period (P)295y Periastron (T)1808.15y Semi-major axis (a)1.912a
Eccentricity (e)0.4 Inclination (i)103.3° Longitude of periastron (ω)259.1°
Node (Ω)125.5° Notesn ReferenceTok2018b
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 345.0 0.871
2001 343.8 0.888
2002 342.6 0.906
2003 341.5 0.924
2004 340.4 0.942
2005 339.4 0.960
2006 338.4 0.978
2007 337.4 0.996
2008 336.5 1.015
2009 335.6 1.033
2010 334.7 1.051
2011 333.9 1.070
2012 333.1 1.088
2013 332.3 1.106
2014 331.6 1.125
2015 330.8 1.143
2016 330.1 1.161
2017 329.4 1.179
2018 328.8 1.197
2019 328.1 1.214
2020 327.5 1.232
2021 326.9 1.249
2022 326.3 1.266
2023 325.7 1.283
2024 325.1 1.300
2025 324.6 1.316
2026 324.1 1.333
2027 323.5 1.349
2028 323.0 1.364
2029 322.5 1.380
2030 322.0 1.395


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



 
 


wds09488-5237a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic