11518+5032 HU  730

 
 
11H 51M 26.34S +50 32' 18.8" P.A. 96.5 SEP 0.16 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
1995
Obs
18
Pa first
228
Pa last
150
P.A. Now (θ)
96.5°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.16"
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
ADS
8323
last precise pa
150
last precise sep
0.19
 
 
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° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.175 130.4
2001 0.174 128.6
2002 0.172 126.8
2003 0.171 124.9
2004 0.169 123.1
2005 0.168 121.2
2006 0.166 119.2
2007 0.165 117.2
2008 0.164 115.2
2009 0.163 113.2
2010 0.162 111.2
2011 0.162 109.1
2012 0.161 107.0
2013 0.161 105.0
2014 0.160 102.9
2015 0.160 100.7
2016 0.160 98.6
2017 0.160 96.5
2018 0.160 94.4
2019 0.160 92.3
2020 0.161 90.2
2021 0.161 88.1
2022 0.162 86.0
2023 0.163 84.0
2024 0.164 81.9
2025 0.164 79.9
2026 0.165 77.9
2027 0.167 76.0
2028 0.168 74.0
2029 0.169 72.1
2030 0.170 70.2

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic