11550-5606 HLD 114 (HD 103493)

 
 
11h 55m 01.34s -56° 05' 45.5" P.A. 169.00 sep 3.8 mag 7.36,7.81 Sp G3IV/V dist. 30.2 pc (98.51 l.y.)
 
 
Coord 2000 11550-5606 Discov num HLD 114 Comp Coord arcsec 2000 11 55 01.34 -56 05 45.5
Date first 1882 Date last 2021 Obs 58
Pa first 230 Pa last 168.6 P.A. Now (θ) 168.6°
Sep first 2.0 Sep last 3.819 Sep. Now (ρ) 3.819"
Mag pri 7.36 Mag sec 7.81 delta mag (ΔM) 0.45 Spectral class G3IV/V (yellow)
Pri motion ra +209 Sec motion ra +217
Pri motion dec -198 Sec motion dec -206
Notes O (Orbital solution)
rPM=0.038 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 103493 Constellation Centaurus HIP 58106 Tycho2 8635-02005-1
Gaia DR2 5343737016229657856 HD 103493 GL Gl 452.5A CD CD-55 4298
CP CP-55 4711 Distance 30.2 Distance ly 98.51
 
 
ORBITAL ELEMENTS
 
 
Period (P)972.4643y± 420.8437 Periastron (T)2125.0897y± 250.2814 Semi-major axis (a)6.55131a± 3.49004
Eccentricity (e)0.60167± 0.29595 Inclination (i)100.64°± 15.097 Longitude of periastron (ω)66.614°± 40.526
Node (Ω)158.158°± 6.154 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 171.5 3.709
2001 171.4 3.719
2002 171.2 3.729
2003 171.0 3.739
2004 170.9 3.749
2005 170.7 3.758
2006 170.5 3.768
2007 170.4 3.777
2008 170.2 3.786
2009 170.0 3.794
2010 169.9 3.803
2011 169.7 3.811
2012 169.6 3.819
2013 169.4 3.827
2014 169.2 3.834
2015 169.1 3.841
2016 168.9 3.848
2017 168.8 3.855
2018 168.6 3.862
2019 168.5 3.868
2020 168.3 3.874
2021 168.1 3.880
2022 168.0 3.885
2023 167.8 3.890
2024 167.7 3.895
2025 167.5 3.899
2026 167.4 3.904
2027 167.2 3.908
2028 167.1 3.911
2029 166.9 3.914
2030 166.8 3.917


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


 
  


wds11550-5606b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic