10294+1211 HDS 1507 (HD 90823)

 
 
10h 29m 25.66s +12 11' 13.3" P.A. 55.00 sep 0.1 mag 7.69,8.76 Sp F2 dist. 91.16 pc (297.36 l.y.)
 
 
Coord 2000 10294+1211 Discov num HDS1507 Comp Coord arcsec 2000 10 29 25.66 +12 11 13.3
Date first 1991 Date last 2021 Obs 18
Pa first 44 Pa last 55.2 P.A. Now (θ) 68.6°
Sep first 0.1 Sep last 0.12 Sep. Now (ρ) 0.114"
Mag pri 7.69 Mag sec 8.76 delta mag (ΔM) 1.07 Spectral class F2 (yellow-white)
Pri motion ra -069 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 90823 Constellation Leo SAO 99157 HIP 51360
Tycho2 0841-00115-1 Gaia DR2 3883797608464273024 HD 90823 BD BD+12 2217
Distance 91.16 Distance ly 297.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.59y± 0.11 Periastron (T)2011.79y± 0.36 Semi-major axis (a)0.0984a± 0.0021
Eccentricity (e)0.372± 0.032 Inclination (i)24.6°± 6.9 Longitude of periastron (ω)286.3°± 24.7
Node (Ω)277°± 29.7 Notes ReferenceTok2017b
Equinox2000 Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 328.3 0.103
2001 344.7 0.111
2002 359.1 0.117
2003 12.4 0.121
2004 24.9 0.124
2005 37.1 0.124
2006 49.6 0.122
2007 62.8 0.117
2008 77.6 0.108
2009 95.7 0.096
2010 120.6 0.079
2011 160.2 0.061
2012 217.0 0.058
2013 264.0 0.071
2014 294.9 0.086
2015 317.3 0.098
2016 335.3 0.107
2017 350.8 0.114
2018 4.7 0.119
2019 17.6 0.123
2020 29.9 0.124
2021 42.2 0.123
2022 54.9 0.120
2023 68.6 0.114
2024 84.5 0.104
2025 104.7 0.089
2026 134.4 0.071
2027 182.5 0.057
2028 238.7 0.062
2029 278.1 0.077
2030 304.8 0.091


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



 
 


wds10294%2B1211e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic