09591+5316 A 1346 (HD 86309)

 
 
09h 59m 05.55s +53 15' 49.5" P.A. 179.00 sep 0.7 mag 8.84,9.66 Sp F8 dist. 125.79 pc (410.33 l.y.)
 
 
Coord 2000 09591+5316 Discov num A  1346 Comp Coord arcsec 2000 09 59 05.55 +53 15 49.5
Date first 1906 Date last 2022 Obs 27
Pa first 151 Pa last 179.2 P.A. Now (θ) 179.2°
Sep first 0.4 Sep last 0.74 Sep. Now (ρ) 0.74"
Mag pri 8.84 Mag sec 9.66 delta mag (ΔM) 0.82 Spectral class F8 (yellow-white)
Pri motion ra -058 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 86309 Constellation Ursa Major SAO 27456 HIP 48940
Tycho2 3814-00781-1 Gaia DR2 828538228357203968 HD 86309 ADS 7598
BD BD+53 1375 Distance 125.79 Distance ly 410.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)298.13y± 22.83 Periastron (T)1971.51y± 1.32 Semi-major axis (a)0.56a± 0.045
Eccentricity (e)0.742± 0.02 Inclination (i)110°± 1.9 Longitude of periastron (ω)208.4°± 2.9
Node (Ω)175.9°± 1.6 Notesn ReferenceHrt2009
Equinox Last observation2008 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 184.7 0.421
2001 184.2 0.434
2002 183.8 0.446
2003 183.4 0.459
2004 183.0 0.471
2005 182.6 0.482
2006 182.2 0.494
2007 181.9 0.505
2008 181.5 0.516
2009 181.2 0.527
2010 180.9 0.537
2011 180.6 0.548
2012 180.3 0.558
2013 180.1 0.567
2014 179.8 0.577
2015 179.5 0.586
2016 179.3 0.596
2017 179.0 0.605
2018 178.8 0.613
2019 178.6 0.622
2020 178.4 0.630
2021 178.1 0.639
2022 177.9 0.647
2023 177.7 0.655
2024 177.5 0.662
2025 177.3 0.670
2026 177.1 0.677
2027 177.0 0.684
2028 176.8 0.691
2029 176.6 0.698
2030 176.4 0.705


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



 
 


wds09591%2B5316a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic