10163-2859 I 851 (HD 89117)

 
 
10h 16m 18.88s -28 58' 42.5" P.A. 236.00 sep 0.4 mag 9.62,7.96 Sp F3V dist. 147.06 pc (479.71 l.y.)
 
 
Coord 2000 10163-2859 Discov num I   851 Comp Coord arcsec 2000 10 16 18.88 -28 58 42.5
Date first 1910 Date last 2013 Obs 38
Pa first 222 Pa last 235.6 P.A. Now (θ) 230.2°
Sep first 0.5 Sep last 0.384 Sep. Now (ρ) 0.368"
Mag pri 9.62 Mag sec 7.96 delta mag (ΔM) 1.66 Spectral class F3V (yellow-white)
Pri motion ra -012 Sec motion ra -012
Pri motion dec -017 Sec motion dec -017
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 89117 Constellation Antlia SAO 178601 HIP 50309
Tycho2 6630-01496-1 Gaia DR2 5462598586856740352 HD 89117 GC 14111
ADS 7706 CD CD-28 8041 CP CP-28 4058 Distance 147.06
Distance ly 479.71
 
 
ORBITAL ELEMENTS
 
 
Period (P)117y Periastron (T)1953.9y Semi-major axis (a)0.216a
Eccentricity (e)0.782 Inclination (i)136° Longitude of periastron (ω)11°
Node (Ω)63° Notesn ReferenceHrt2010a
Equinox2000 Last observation2009 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 240.6 0.373
2001 240.1 0.374
2002 239.7 0.376
2003 239.2 0.377
2004 238.8 0.379
2005 238.3 0.380
2006 237.9 0.380
2007 237.4 0.381
2008 237.0 0.381
2009 236.5 0.382
2010 236.1 0.382
2011 235.7 0.382
2012 235.2 0.382
2013 234.8 0.381
2014 234.3 0.381
2015 233.9 0.380
2016 233.4 0.379
2017 233.0 0.378
2018 232.5 0.377
2019 232.1 0.375
2020 231.6 0.374
2021 231.2 0.372
2022 230.7 0.370
2023 230.2 0.368
2024 229.7 0.366
2025 229.3 0.363
2026 228.8 0.361
2027 228.3 0.358
2028 227.8 0.355
2029 227.2 0.352
2030 226.7 0.348


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



 
 


wds10163-2859a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic