13181-3829 B 808 (HD 115493)

 
 
13h 18m 05.40s -38° 28' 55.7" P.A. 316.00 sep 0.3 mag 10.09,10.47 Sp G0V dist. 276.24 pc (901.09 l.y.)
 
 
Coord 2000 13181-3829 Discov num B   808 Comp Coord arcsec 2000 13 18 05.40 -38 28 55.7
Date first 1927 Date last 2021 Obs 11
Pa first 176 Pa last 315.7 P.A. Now (θ) 315.7°
Sep first 0.2 Sep last 0.307 Sep. Now (ρ) 0.307"
Mag pri 10.09 Mag sec 10.47 delta mag (ΔM) 0.38 Spectral class G0V (yellow)
Pri motion ra -041 Sec motion ra
Pri motion dec -037 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 115493 Constellation Centaurus HIP 64893 Tycho2 7774-01616-1
HD 115493 CD CD-37 8507 CP CP-37 5552 Distance 276.24
Distance ly 901.09
 
 
ORBITAL ELEMENTS
 
 
Period (P)350y Periastron (T)1929.38y Semi-major axis (a)0.313a
Eccentricity (e)0.322 Inclination (i)31.3° Longitude of periastron (ω)164.7°
Node (Ω)19.4° Notes ReferenceTok2021f
Equinox Last observation2021 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 294.7 0.269
2001 295.8 0.271
2002 296.9 0.273
2003 298.0 0.274
2004 299.1 0.276
2005 300.1 0.278
2006 301.2 0.280
2007 302.2 0.281
2008 303.2 0.283
2009 304.2 0.285
2010 305.2 0.287
2011 306.2 0.289
2012 307.2 0.290
2013 308.1 0.292
2014 309.1 0.294
2015 310.0 0.296
2016 311.0 0.298
2017 311.9 0.300
2018 312.8 0.301
2019 313.7 0.303
2020 314.5 0.305
2021 315.4 0.307
2022 316.3 0.309
2023 317.1 0.311
2024 318.0 0.312
2025 318.8 0.314
2026 319.6 0.316
2027 320.4 0.318
2028 321.2 0.320
2029 322.0 0.322
2030 322.8 0.323


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



 
 


wds13181-3829a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic