10320+0831 YSC 39

 
 
10h 32m 00.66s +08° 30' 38.2" P.A. 22.00 sep 0.8 mag 10.78, Sp K5 dist. 34.22 pc (111.63 l.y.)
 
 
Coord 2000 10320+0831 Discov num YSC  39 Comp Coord arcsec 2000 10 32 00.66 +08 30 38.2
Date first 2007 Date last 2021 Obs 14
Pa first 53 Pa last 22.1 P.A. Now (θ) 22.1°
Sep first 0.8 Sep last 0.785 Sep. Now (ρ) 0.785"
Mag pri 10.78 Mag sec delta mag (ΔM) Spectral class K5 (yellow-orange)
Pri motion ra +068 Sec motion ra
Pri motion dec -196 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Leo HIP 51571 Gaia DR2 3863754056950355840 BD BD+09 2366
Distance 34.22 Distance ly 111.63
 
 
ORBITAL ELEMENTS
 
 
Period (P)178.9y± 5.4 Periastron (T)2000.07y± 0.6 Semi-major axis (a)1.083a± 0.015
Eccentricity (e)0.274± 0.012 Inclination (i)129.5°± 1.6 Longitude of periastron (ω)331.4°± 2
Node (Ω)50.95°± 0.79 Notes ReferenceHor2021b
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 70.3 0.730
2001 67.6 0.743
2002 65.0 0.755
2003 62.5 0.767
2004 60.1 0.777
2005 57.8 0.787
2006 55.4 0.795
2007 53.2 0.802
2008 50.9 0.807
2009 48.7 0.812
2010 46.6 0.815
2011 44.4 0.818
2012 42.2 0.819
2013 40.1 0.819
2014 37.9 0.818
2015 35.8 0.816
2016 33.6 0.813
2017 31.4 0.810
2018 29.2 0.806
2019 27.0 0.801
2020 24.7 0.795
2021 22.4 0.790
2022 20.1 0.783
2023 17.7 0.777
2024 15.3 0.770
2025 12.8 0.764
2026 10.3 0.757
2027 7.8 0.751
2028 5.2 0.745
2029 2.6 0.739
2030 359.9 0.734


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



 
 


wds10320%2B0831a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic