13123-5955 SEE 170 AB

 
 
13h 12m 17.63s -59° 55' 13.9" P.A. 254.00 sep 0.0 mag 5.30,6.00 Sp B8V dist. 116.14 pc (378.85 l.y.)
 
 
Coord 2000 13123-5955 Discov num SEE 170 Comp AB Coord arcsec 2000 13 12 17.63 -59 55 13.9
Date first 1897 Date last 2021 Obs 50
Pa first 96 Pa last 254.1 P.A. Now (θ) 248.9°
Sep first 0.3 Sep last 0.049 Sep. Now (ρ) 0.101"
Mag pri 5.30 Mag sec 6.00 delta mag (ΔM) 0.7 Spectral class B8V (blue-white)
Pri motion ra -025 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13123-5955 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 240645 13 12 18 -59 55 14 SEE 170 AB 2021 50 254 0.0 5.30 6.00 0.70 Y <===
Show V831 Cen 240645 13 12 18 -59 55 14 I 424 AB,C 2021 35 15 1.9 4.55 8.40 3.85
Show 240645 13 12 18 -59 55 14 HDO 223 AB,D 2015 7 259 46.6 4.55 11.98 7.43
Show 240645 13 12 18 -59 55 14 I 424 AB,E 2015 4 24 53.8 4.55 14.90 10.35
Quintuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V831 Cen Constellation Centaurus SAO 240645 HIP 64425
Tycho2 8661-02284-1 Gaia DR2 6061917808001384192 HD 114529 HR 4975
GC 17866 CP CP-59 4815 Distance 116.14 Distance ly 378.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)27.53y± 0.2 Periastron (T)2026.82y± 0.15 Semi-major axis (a)0.226a± 0.01
Eccentricity (e)0.593± 0.015 Inclination (i)75.2°± 3 Longitude of periastron (ω)235.9°± 3
Node (Ω)97.9°± 3 Notesn ReferenceDoc2021d
Equinox Last observation2019 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 36.8 0.029
2001 84.9 0.103
2002 92.8 0.164
2003 96.8 0.207
2004 99.6 0.237
2005 101.8 0.257
2006 103.8 0.269
2007 105.6 0.274
2008 107.5 0.274
2009 109.3 0.270
2010 111.3 0.261
2011 113.4 0.249
2012 115.7 0.234
2013 118.4 0.217
2014 121.6 0.197
2015 125.6 0.175
2016 130.7 0.152
2017 137.7 0.129
2018 147.7 0.106
2019 162.7 0.087
2020 184.4 0.074
2021 210.2 0.074
2022 232.8 0.084
2023 248.9 0.101
2024 260.4 0.117
2025 269.8 0.123
2026 280.0 0.104
2027 309.3 0.042
2028 73.7 0.063
2029 89.5 0.134
2030 94.9 0.186


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


 
  


wds13123-5955c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic