13134-5042 I  1227

 
 
13h 13m 23.38s -50 41' 59.2" P.A. 138.6 sep 0.35 mag 6.56,6.78 Sp B9.5V dist. 112.23 pc (366.09 l.y.)
 
 
Coord 2000
13134-5042
Discov num
I  1227
Comp
Coord arcsec 2000
13 13 23.38 -50 41 59.2
Date first
1926
Date last
2015
Obs
26
Pa first
122
Pa last
143
P.A. Now (θ)
138.6°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.35"
Mag pri
6.56
Mag sec
6.78
delta mag (ΔM)
0.22
Spectral class
B9.5V (blue-white)
Pri motion ra
-028
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
N O V (See Notes, Orbital solution, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
142.7
Precise sep
0.347
Constellation
Centaurus
SAO
240655
HIP
64515
Tycho2
8259-01490-1
HD
114772
HR
4985
CD
CD-50 7589
CP
CP-50 5814
Distance
112.23
Distance ly
366.09
last precise pa
142.7
last precise sep
0.347
 
 
ORBITAL ELEMENTS
 
 
Period (P)100.88y Periastron (T)1981.74y Semi-major axis (a)0.317a
Eccentricity (e)0.647 Inclination (i)133.2° Longitude of periastron (ω)90.2°
Node (Ω)26.2° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 0.299 168.2
2001 0.304 166.2
2002 0.309 164.2
2003 0.313 162.2
2004 0.317 160.3
2005 0.320 158.5
2006 0.324 156.7
2007 0.327 154.9
2008 0.330 153.2
2009 0.332 151.5
2010 0.335 149.8
2011 0.337 148.1
2012 0.339 146.5
2013 0.341 144.9
2014 0.343 143.3
2015 0.345 141.7
2016 0.346 140.1
2017 0.348 138.6
2018 0.349 137.0
2019 0.350 135.5
2020 0.351 134.0
2021 0.352 132.5
2022 0.353 130.9
2023 0.354 129.5
2024 0.355 128.0
2025 0.355 126.5
2026 0.356 125.0
2027 0.356 123.5
2028 0.357 122.0
2029 0.357 120.6
2030 0.357 119.1

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

grafico orbita





wds13134-5042a.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
13134-5042 I 1227 2006 23 337 0.3 6.56 6.78 B9.5V NV 131323.38-504159.2
13134-5042 I 1227 2010 25 327 0.4 6.56 6.78 B9.5V NO V 131323.38-504159.2
13134-5042 I 1227 2015 26 143 0.3 6.56 6.78 B9.5V NO V 131323.38-504159.2

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