15042-1530 RST 3906 (HD 133316)

 
 
15h 04m 14.24s -15° 29' 51.4" P.A. 335.00 sep 0.0 mag 8.67,9.17 Sp F5/6V dist. 119.33 pc (389.25 l.y.)
 
 
Coord 2000 15042-1530 Discov num RST3906 Comp Coord arcsec 2000 15 04 14.24 -15 29 51.4
Date first 1937 Date last 2021 Obs 26
Pa first 337 Pa last 335.1 P.A. Now (θ) 333.7°
Sep first 0.3 Sep last 0.046 Sep. Now (ρ) 0.071"
Mag pri 8.67 Mag sec 9.17 delta mag (ΔM) 0.5 Spectral class F5/6V (yellow-white)
Pri motion ra +022 Sec motion ra
Pri motion dec -042 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 133316 Constellation Libra SAO 159001 HIP 73724
Tycho2 6169-00320-1 Gaia DR2 6306937686361309312 HD 133316 BD BD-14 4105
Distance 119.33 Distance ly 389.25
 
 
ORBITAL ELEMENTS
 
 
Period (P)53.897y± 15.772 Periastron (T)2018.396y± 3.868 Semi-major axis (a)0.157a± 0.0278
Eccentricity (e)0.74± 0.337 Inclination (i)89.4°± 1.5 Longitude of periastron (ω)3.7°± 32.1
Node (Ω)154.5°± 1.3 Notes ReferenceTok2016e
Equinox2000 Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 334.7 0.243
2001 334.7 0.236
2002 334.7 0.228
2003 334.7 0.219
2004 334.8 0.209
2005 334.8 0.199
2006 334.8 0.188
2007 334.9 0.175
2008 334.9 0.162
2009 335.0 0.147
2010 335.0 0.131
2011 335.1 0.114
2012 335.2 0.095
2013 335.4 0.075
2014 335.7 0.053
2015 336.4 0.030
2016 345.6 0.004
2017 153.0 0.021
2018 154.3 0.040
2019 155.0 0.034
2020 158.9 0.008
2021 332.1 0.020
2022 333.3 0.047
2023 333.7 0.071
2024 333.9 0.093
2025 334.0 0.113
2026 334.1 0.131
2027 334.1 0.148
2028 334.2 0.163
2029 334.2 0.177
2030 334.2 0.190


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



 
 


wds15042-1530b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic