09174+2339 STF 1332 (HD 79872)

 
 
09h 17m 19.21s +23 39' 09.8" P.A. 29.00 sep 5.9 mag 7.87,8.12 Sp F6V+F7V dist. 71.28 pc (232.52 l.y.)
 
 
Coord 2000 09174+2339 Discov num STF1332 Comp Coord arcsec 2000 09 17 19.21 +23 39 09.8
Date first 1822 Date last 2019 Obs 145
Pa first 14 Pa last 29.4 P.A. Now (θ) 29.4°
Sep first 5.5 Sep last 5.933 Sep. Now (ρ) 5.933"
Mag pri 7.87 Mag sec 8.12 delta mag (ΔM) 0.25 Spectral class F6V+F7V (yellow-white/yellow-white)
Pri motion ra -046 Sec motion ra -046
Pri motion dec -067 Sec motion dec -067
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 79872 Constellation Cancer SAO 80738 HIP 45574
Tycho2 1951-01947-1 Gaia DR2 687376019276147968 HD 79872 GC 12804
ADS 7281 BD BD+24 2068 Distance 71.28 Distance ly 232.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)3395.218y± 1537.5039 Periastron (T)1500.7561y± 757.5483 Semi-major axis (a)9.86671a± 4.37108
Eccentricity (e)0.78632± 0.15608 Inclination (i)69.468°± 9.975 Longitude of periastron (ω)97.588°± 15.114
Node (Ω)172.468°± 107.435 Notes ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 28.1 5.894
2001 28.1 5.894
2002 28.2 5.895
2003 28.3 5.895
2004 28.3 5.896
2005 28.4 5.896
2006 28.4 5.896
2007 28.5 5.897
2008 28.6 5.897
2009 28.6 5.898
2010 28.7 5.898
2011 28.8 5.898
2012 28.8 5.899
2013 28.9 5.899
2014 29.0 5.899
2015 29.0 5.900
2016 29.1 5.900
2017 29.2 5.900
2018 29.2 5.901
2019 29.3 5.901
2020 29.3 5.901
2021 29.4 5.901
2022 29.5 5.902
2023 29.5 5.902
2024 29.6 5.902
2025 29.7 5.903
2026 29.7 5.903
2027 29.8 5.903
2028 29.9 5.903
2029 29.9 5.904
2030 30.0 5.904


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



 
 


wds09174%2B2339a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic