09524+2659 STF 1389 (HD 85441)

 
 
09h 52m 26.17s +26° 58' 53.8" P.A. 290.00 sep 2.4 mag 9.12,9.50 Sp K0 dist. 57.54 pc (187.7 l.y.)
 
 
Coord 2000 09524+2659 Discov num STF1389 Comp Coord arcsec 2000 09 52 26.17 +26 58 53.8
Date first 1830 Date last 2019 Obs 158
Pa first 329 Pa last 289.6 P.A. Now (θ) 289.6°
Sep first 1.7 Sep last 2.44 Sep. Now (ρ) 2.44"
Mag pri 9.12 Mag sec 9.50 delta mag (ΔM) 0.38 Spectral class K0 (yellow-orange)
Pri motion ra +118 Sec motion ra +100
Pri motion dec -180 Sec motion dec -180
Notes O (Orbital solution)
rPM=0.084 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 85441 Constellation Leo SAO 81060 HIP 48429
Tycho2 1964-00034-1 Gaia DR2 646994083923349632 HD 85441 GC 13579
ADS 7551 BD BD+27 1819 Distance 57.54 Distance ly 187.7
 
 
ORBITAL ELEMENTS
 
 
Period (P)1454y Periastron (T)2420.07y Semi-major axis (a)2.773a
Eccentricity (e)0.307 Inclination (i)122.7° Longitude of periastron (ω)265.1°
Node (Ω)80.9° Notes ReferenceLin2016a
Equinox2000 Last observation2013 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 292.5 2.470
2001 292.4 2.473
2002 292.2 2.475
2003 292.1 2.477
2004 291.9 2.480
2005 291.7 2.482
2006 291.6 2.484
2007 291.4 2.487
2008 291.3 2.489
2009 291.1 2.491
2010 290.9 2.493
2011 290.8 2.495
2012 290.6 2.498
2013 290.5 2.500
2014 290.3 2.502
2015 290.2 2.504
2016 290.0 2.506
2017 289.8 2.508
2018 289.7 2.511
2019 289.5 2.513
2020 289.4 2.515
2021 289.2 2.517
2022 289.1 2.519
2023 288.9 2.521
2024 288.8 2.523
2025 288.6 2.525
2026 288.5 2.527
2027 288.3 2.529
2028 288.2 2.531
2029 288.0 2.533
2030 287.8 2.535


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



 
 


wds09524%2B2659c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic