14544-3409 I 226 AB (HD 131399)

 
 
14h 54m 25.30s -34° 08' 34.0" P.A. 222.00 sep 3.2 mag 7.09,11.16 Sp A1V dist. 98.04 pc (319.81 l.y.)
 
 
Coord 2000 14544-3409 Discov num I   226 Comp AB Coord arcsec 2000 14 54 25.30 -34 08 34.0
Date first 1897 Date last 2019 Obs 20
Pa first 230 Pa last 222.3 P.A. Now (θ) 222.3°
Sep first 2.5 Sep last 3.178 Sep. Now (ρ) 3.178"
Mag pri 7.09 Mag sec 11.16 delta mag (ΔM) 4.07 Spectral class A1V (white)
Pri motion ra -030 Sec motion ra -032
Pri motion dec -026 Sec motion dec -031
Notes N O W (See Notes, Orbital solution, )
rPM=0.121 (< 0.3, Physical double)
This double is physical.
 
 
14544-3409 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 206071 14 54 25 -34 08 34 WGK 1 Aa,Ab 2016 3 194 0.8 6.64 19.10 12.46 Y
Show 206071 14 54 25 -34 08 34 I 226 A,Ba 2016 3 222 3.1 6.64 8.50 1.86
Show 206071 14 54 25 -34 08 34 I 226 A,Bb 2016 3 222 3.2 6.64 10.50 3.86
Show HD 131399 206071 14 54 25 -34 08 34 I 226 AB 2019 20 222 3.2 7.09 11.16 4.07 Y <===
Show 206071 14 54 25 -34 08 34 I 226 AC 2016 5 201 32.9 7.09 13.20 6.11
Show 14 54 25 -34 08 36 WGK 1 Ba,Bb 2016 3 235 0.1 8.50 19.50 11.00
Quintuple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 131399 Constellation Centaurus SAO 206071 HIP 72940
Tycho2 7306-02615-1 Gaia DR2 6204835284262018688 HD 131399 CD CD-3310153
CP CP-33 3720 Distance 98.04 Distance ly 319.81
 
 
ORBITAL ELEMENTS
 
 
Period (P)3556y± 36 Periastron (T)502y± 33 Semi-major axis (a)3.56a± 0.03
Eccentricity (e)0.13± 0.05 Inclination (i)55°± 10 Longitude of periastron (ω)145.3°± 15
Node (Ω)265°± 20 Notesn ReferenceWgK2016
Equinox2000 Last observation2016 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 223.7 2.895
2001 223.8 2.898
2002 223.9 2.900
2003 223.9 2.903
2004 224.0 2.905
2005 224.1 2.908
2006 224.2 2.910
2007 224.3 2.913
2008 224.4 2.916
2009 224.5 2.918
2010 224.5 2.921
2011 224.6 2.923
2012 224.7 2.926
2013 224.8 2.929
2014 224.9 2.931
2015 225.0 2.934
2016 225.1 2.936
2017 225.1 2.939
2018 225.2 2.941
2019 225.3 2.944
2020 225.4 2.947
2021 225.5 2.949
2022 225.6 2.952
2023 225.6 2.954
2024 225.7 2.957
2025 225.8 2.960
2026 225.9 2.962
2027 226.0 2.965
2028 226.1 2.967
2029 226.1 2.970
2030 226.2 2.972


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



 
 


wds14544-3409a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic