16170-5342 I 987 (HD 146059)

 
 
16h 16m 58.92s -53° 41' 46.3" P.A. 293.00 sep 0.5 mag 6.63,8.77 Sp G6IV+G2V dist. 70.92 pc (231.34 l.y.)
 
 
Coord 2000 16170-5342 Discov num I   987 Comp Coord arcsec 2000 16 16 58.92 -53 41 46.3
Date first 1910 Date last 2021 Obs 34
Pa first 270 Pa last 292.5 P.A. Now (θ) 295.2°
Sep first 0.5 Sep last 0.453 Sep. Now (ρ) 0.428"
Mag pri 6.63 Mag sec 8.77 delta mag (ΔM) 2.14 Spectral class G6IV+G2V (yellow/yellow)
Pri motion ra -067 Sec motion ra -067
Pri motion dec -093 Sec motion dec -093
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 146059 Constellation Norma SAO 243533 HIP 79787
Tycho2 8711-02684-1 Gaia DR2 5932223573987380480 HD 146059 GC 21869
CD CD-53 6537 CP CP-53 7607 Distance 70.92 Distance ly 231.34
 
 
ORBITAL ELEMENTS
 
 
Period (P)102.47y± 1.77 Periastron (T)1952.08y± 1.72 Semi-major axis (a)0.384a± 0.012
Eccentricity (e)0.262± 0.021 Inclination (i)15.9°± 10.8 Longitude of periastron (ω)12.2°± 43.4
Node (Ω)59.3°± 39.9 Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 244.2 0.483
2001 246.3 0.484
2002 248.3 0.484
2003 250.4 0.484
2004 252.5 0.484
2005 254.5 0.483
2006 256.6 0.482
2007 258.7 0.481
2008 260.7 0.479
2009 262.8 0.478
2010 265.0 0.476
2011 267.1 0.473
2012 269.2 0.471
2013 271.4 0.468
2014 273.6 0.465
2015 275.9 0.462
2016 278.1 0.458
2017 280.4 0.455
2018 282.8 0.451
2019 285.2 0.446
2020 287.6 0.442
2021 290.1 0.437
2022 292.6 0.433
2023 295.2 0.428
2024 297.9 0.422
2025 300.6 0.417
2026 303.4 0.412
2027 306.3 0.406
2028 309.3 0.400
2029 312.3 0.394
2030 315.5 0.389


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


 
  


wds16170-5342a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic