15042-1530 RST3906

 
 
15h 04m 14.24s -15 29' 51.4" P.A. 332.10 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
2018
Obs
25
Pa first
337
Pa last
156
P.A. Now (θ)
332.1°
Sep first
0.3
Sep last
0.0
Sep. Now (ρ)
0.02"
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)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
156.2
Precise sep
0.044
Constellation
Libra
SAO
159001
HIP
73724
Tycho2
6169-00320-1
Gaia DR2
86361309312
HD
133316
BD
BD-14 4105
Distance
119.33
Distance ly
389.25
last precise pa
156.2
last precise sep
0.044
 
 
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 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.243 334.7
2001 0.236 334.7
2002 0.228 334.7
2003 0.219 334.7
2004 0.209 334.8
2005 0.199 334.8
2006 0.188 334.8
2007 0.175 334.9
2008 0.162 334.9
2009 0.147 335.0
2010 0.131 335.0
2011 0.114 335.1
2012 0.095 335.2
2013 0.075 335.4
2014 0.053 335.7
2015 0.030 336.4
2016 0.004 345.6
2017 0.021 153.0
2018 0.040 154.3
2019 0.034 155.0
2020 0.008 158.9
2021 0.020 332.1
2022 0.047 333.3
2023 0.071 333.7
2024 0.093 333.9
2025 0.113 334.0
2026 0.131 334.1
2027 0.148 334.1
2028 0.163 334.2
2029 0.177 334.2
2030 0.190 334.2

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






wds15042-1530b.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
15042-1530 RST3906 1994 23 324 0.4 8.67 9.17 F5/6V NO 150414.24-152951.4
15042-1530 RST3906 2008 24 155 0.2 8.67 9.17 F5/6V NO 150414.24-152951.4
15042-1530 RST3906 2014 22 336 0.0 8.67 9.17 F5/6V O 150414.24-152951.4
15042-1530 RST3906 2015 23 342 0.0 8.67 9.17 F5/6V O 150414.24-152951.4
15042-1530 RST3906 2017 24 150 0.0 8.67 9.17 F5/6V O 150414.24-152951.4
15042-1530 RST3906 2018 25 156 0.0 8.67 9.17 F5/6V O 150414.24-152951.4

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