16309+3804 STF 2059 (HD 149083)

 
 
16h 30m 55.71s +38° 03' 52.6" P.A. 179.00 sep 0.3 mag 8.75,8.79 Sp F5 dist. 203.25 pc (663 l.y.)
 
 
Coord 2000 16309+3804 Discov num STF2059 Comp Coord arcsec 2000 16 30 55.71 +38 03 52.6
Date first 1829 Date last 2016 Obs 75
Pa first 209 Pa last 179.2 P.A. Now (θ) 179.2°
Sep first 1.2 Sep last 0.265 Sep. Now (ρ) 0.265"
Mag pri 8.75 Mag sec 8.79 delta mag (ΔM) 0.04 Spectral class F5 (yellow-white)
Pri motion ra -010 Sec motion ra -010
Pri motion dec +042 Sec motion dec +042
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 149083 Constellation Hercules SAO 65355 HIP 80885
Tycho2 3063-01619-1 HD 149083 GC 22222 ADS 10093
BD BD+38 2788 Distance 203.25 Distance ly 663
 
 
ORBITAL ELEMENTS
 
 
Period (P)955y Periastron (T)2059y Semi-major axis (a)1.114a
Eccentricity (e)0.52 Inclination (i)102.8° Longitude of periastron (ω)297.9°
Node (Ω)23.8° Notes ReferenceZir2014a
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 189.6 0.466
2001 189.2 0.456
2002 188.7 0.446
2003 188.3 0.436
2004 187.8 0.425
2005 187.3 0.415
2006 186.8 0.405
2007 186.2 0.395
2008 185.6 0.385
2009 185.0 0.374
2010 184.4 0.364
2011 183.7 0.353
2012 183.0 0.343
2013 182.2 0.333
2014 181.3 0.322
2015 180.5 0.312
2016 179.5 0.301
2017 178.5 0.291
2018 177.4 0.280
2019 176.3 0.270
2020 175.0 0.260
2021 173.6 0.249
2022 172.1 0.239
2023 170.5 0.229
2024 168.8 0.219
2025 166.8 0.209
2026 164.7 0.200
2027 162.4 0.190
2028 159.8 0.181
2029 157.0 0.173
2030 153.9 0.164


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


 
  


wds16309%2B3804a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic