13520-3137 BU  343AB

 
 
13h 52m 00.97s -31 37' 09.2" P.A. 192.5 sep 0.84 mag 6.26,8.91 Sp F7V dist. 52.69 pc (171.87 l.y.)
 
 
Coord 2000
13520-3137
Discov num
BU  343
Comp
AB
Coord arcsec 2000
13 52 00.97 -31 37 09.2
Date first
1875
Date last
2018
Obs
74
Pa first
120
Pa last
194
P.A. Now (θ)
192.5°
Sep first
1.2
Sep last
0.8
Sep. Now (ρ)
0.84"
Mag pri
6.26
Mag sec
8.91
delta mag (ΔM)
2.65
Spectral class
F7V (yellow-white)
Pri motion ra
-038
Sec motion ra
-038
Pri motion dec
-045
Sec motion dec
-045
Notes
O (Orbital solution)
This double is physical.
 
 
13520-3137 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 204922 13520-3137 BU 343 AB 1875 2018 74 192 0.8 6.26 8.91 2.65 Y <===
Show 13520-3137 ARY 111 AB,C 1991 2013 4 95 94.3 6.26 9.40 3.14
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
194
Precise sep
0.768
Constellation
Centaurus
SAO
204922
HIP
67696
Tycho2
7279-01836-1
Gaia DR2
78162433280
HD
120759
HR
5212
CD
CD-3110706
CP
CP-30 3752
Distance
52.69
Distance ly
171.87
last precise pa
194
last precise sep
0.768
 
 
ORBITAL ELEMENTS
 
 
Period (P)280y Periastron (T)1996.61y Semi-major axis (a)1.268a
Eccentricity (e)0.656 Inclination (i)130.2° Longitude of periastron (ω)231.9°
Node (Ω)177.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.302 284.4
2001 0.303 273.4
2002 0.313 262.7
2003 0.329 252.9
2004 0.352 244.2
2005 0.379 236.7
2006 0.410 230.2
2007 0.442 224.6
2008 0.476 219.8
2009 0.511 215.7
2010 0.545 212.0
2011 0.580 208.9
2012 0.615 206.0
2013 0.649 203.5
2014 0.682 201.2
2015 0.715 199.2
2016 0.747 197.3
2017 0.778 195.6
2018 0.809 194.0
2019 0.839 192.5
2020 0.868 191.1
2021 0.896 189.8
2022 0.924 188.6
2023 0.951 187.4
2024 0.977 186.3
2025 1.002 185.3
2026 1.027 184.3
2027 1.051 183.4
2028 1.075 182.5
2029 1.098 181.7
2030 1.120 180.8

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






wds13520-3137b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13520-3137 BU 343 AB 2013 60 203 0.6 6.26 8.91 F7V O 135200.97-313709.2
13520-3137 BU 343 AB 2014 61 202 0.7 6.26 8.91 F7V O 135200.97-313709.2
13520-3137 BU 343 AB 2015 65 199 0.7 6.26 8.91 F7V O 135200.97-313709.2
13520-3137 BU 343 AB 2017 71 195 0.7 6.26 8.91 F7V O 135200.97-313709.2

If you need more information about this double, apply for a data request form to the WDS.