15055-0701 BU 119 AB (HD 133584)

 
 
15h 05m 31.91s -07° 00' 48.8" P.A. 274.00 sep 2.3 mag 8.09,8.76 Sp G0 dist. 47.6 pc (155.27 l.y.)
 
 
Coord 2000 15055-0701 Discov num BU  119 Comp AB Coord arcsec 2000 15 05 31.91 -07 00 48.8
Date first 1873 Date last 2019 Obs 89
Pa first 300 Pa last 273.9 P.A. Now (θ) 273.9°
Sep first 1.0 Sep last 2.333 Sep. Now (ρ) 2.333"
Mag pri 8.09 Mag sec 8.76 delta mag (ΔM) 0.67 Spectral class G0 (yellow)
Pri motion ra -225 Sec motion ra -227
Pri motion dec -005 Sec motion dec -014
Notes N O (See Notes, Orbital solution)
rPM=0.041 (< 0.3, Physical double)
This double is physical.
 
 
15055-0701 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 133584 15 05 32 -07 00 49 BU 119 AB 2019 89 274 2.3 8.09 8.76 0.67 Y <===
Show 15 05 32 -07 00 49 BU 119 AC 2015 7 98 77.7 8.09 12.64 4.55
Show 15 05 32 -07 00 49 TOK 587 AD 2000 5 290 999.9 7.56 7.72 0.16
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 133584 Constellation Libra HIP 73846 Tycho2 5012-00570-1
HD 133584 ADS 9497 BD BD-06 4130 Distance 47.6
Distance ly 155.27
 
 
ORBITAL ELEMENTS
 
 
Period (P)1348.4y± 373 Periastron (T)1361.4y± 250.8 Semi-major axis (a)3.23a± 0.62
Eccentricity (e)0.35± 0.13 Inclination (i)110.7°± 3.9 Longitude of periastron (ω)117.5°± 18.6
Node (Ω)237°± 4.3 Notesn ReferenceKiy2017
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 277.3 2.194
2001 277.1 2.201
2002 276.9 2.208
2003 276.8 2.215
2004 276.6 2.221
2005 276.4 2.228
2006 276.2 2.235
2007 276.0 2.241
2008 275.8 2.248
2009 275.6 2.255
2010 275.5 2.262
2011 275.3 2.268
2012 275.1 2.275
2013 274.9 2.282
2014 274.8 2.288
2015 274.6 2.295
2016 274.4 2.302
2017 274.2 2.309
2018 274.1 2.315
2019 273.9 2.322
2020 273.7 2.329
2021 273.5 2.336
2022 273.4 2.342
2023 273.2 2.349
2024 273.0 2.356
2025 272.9 2.363
2026 272.7 2.369
2027 272.5 2.376
2028 272.4 2.383
2029 272.2 2.389
2030 272.1 2.396


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



 
 


wds15055-0701a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic