09186+2049 HO 43 (HD 80146)

 
 
09h 18m 36.25s +20 48' 49.4" P.A. 97.00 sep 0.6 mag 9.31,9.46 Sp F5 dist. 108.11 pc (352.65 l.y.)
 
 
Coord 2000 09186+2049 Discov num HO   43 Comp Coord arcsec 2000 09 18 36.25 +20 48 49.4
Date first 1885 Date last 2017 Obs 74
Pa first 314 Pa last 96.9 P.A. Now (θ) 96.9°
Sep first 0.4 Sep last 0.609 Sep. Now (ρ) 0.609"
Mag pri 9.31 Mag sec 9.46 delta mag (ΔM) 0.15 Spectral class F5 (yellow-white)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -050 Sec motion dec -050
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 80146 Constellation Cancer SAO 80753 HIP 45671
Tycho2 1408-00831-1 HD 80146 GC 12832 ADS 7294
BD BD+21 2009 Distance 108.11 Distance ly 352.65
 
 
ORBITAL ELEMENTS
 
 
Period (P)358.6y± 9.4 Periastron (T)1941.2y± 2.5 Semi-major axis (a)0.61a± 0.013
Eccentricity (e)0.4 Inclination (i)131.6°± 2.3 Longitude of periastron (ω)214.9°± 6.7
Node (Ω)80°± 3.6 Notes ReferenceTok2016e
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 108.6 0.506
2001 107.7 0.513
2002 106.8 0.520
2003 106.0 0.527
2004 105.2 0.534
2005 104.4 0.541
2006 103.6 0.548
2007 102.9 0.555
2008 102.2 0.561
2009 101.5 0.568
2010 100.8 0.574
2011 100.1 0.581
2012 99.4 0.587
2013 98.8 0.593
2014 98.1 0.599
2015 97.5 0.605
2016 96.9 0.611
2017 96.3 0.617
2018 95.7 0.623
2019 95.1 0.628
2020 94.5 0.634
2021 94.0 0.640
2022 93.4 0.645
2023 92.9 0.650
2024 92.3 0.655
2025 91.8 0.660
2026 91.3 0.665
2027 90.8 0.670
2028 90.3 0.675
2029 89.8 0.680
2030 89.3 0.685


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



 
 


wds09186%2B2049b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic