11518+5032 HU 730

 
 
11h 51m 26.34s +50° 32' 18.8" P.A. 111.00 sep 0.2 mag 10.50,10.50
 
 
Coord 2000 11518+5032 Discov num HU  730 Comp Coord arcsec 2000 11 51 26.34 +50 32 18.8
Date first 1903 Date last 2019 Obs 25
Pa first 228 Pa last 110.8 P.A. Now (θ) 110.8°
Sep first 0.2 Sep last 0.24 Sep. Now (ρ) 0.24"
Mag pri 10.50 Mag sec 10.50 delta mag (ΔM) 0 Spectral class
Pri motion ra -029 Sec motion ra
Pri motion dec +007 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ursa Major Tycho2 3454-00533-1 Gaia DR2 791001554219136768 ADS 8323
 
 
ORBITAL ELEMENTS
 
 
Period (P)249y Periastron (T)2085y Semi-major axis (a)0.242a
Eccentricity (e)0.099 Inclination (i)130° Longitude of periastron (ω)24.1°
Node (Ω)14° Notes ReferenceUSN2002
Equinox2000 Last observation1995 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 130.4 0.175
2001 128.6 0.174
2002 126.8 0.172
2003 124.9 0.171
2004 123.1 0.169
2005 121.2 0.168
2006 119.2 0.166
2007 117.2 0.165
2008 115.2 0.164
2009 113.2 0.163
2010 111.2 0.162
2011 109.1 0.162
2012 107.0 0.161
2013 105.0 0.161
2014 102.9 0.160
2015 100.7 0.160
2016 98.6 0.160
2017 96.5 0.160
2018 94.4 0.160
2019 92.3 0.160
2020 90.2 0.161
2021 88.1 0.161
2022 86.0 0.162
2023 84.0 0.163
2024 81.9 0.164
2025 79.9 0.164
2026 77.9 0.165
2027 76.0 0.167
2028 74.0 0.168
2029 72.1 0.169
2030 70.2 0.170


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



 
 


wds11518%2B5032a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic