11128+0453 J 1011

 
 
11h 12m 49.42s +04° 53' 15.4" P.A. 43.00 sep 4.1 mag 10.47,11.00 Sp K0
 
 
Coord 2000 11128+0453 Discov num J  1011 Comp Coord arcsec 2000 11 12 49.42 +04 53 15.4
Date first 1903 Date last 2016 Obs 45
Pa first 75 Pa last 43 P.A. Now (θ) 43°
Sep first 2.3 Sep last 4.094 Sep. Now (ρ) 4.094"
Mag pri 10.47 Mag sec 11.00 delta mag (ΔM) 0.53 Spectral class K0 (yellow-orange)
Pri motion ra +002 Sec motion ra +044
Pri motion dec -070 Sec motion dec -026
Notes C (Has orbit and linear solution)
rPM=0.869
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Leo Tycho2 0266-00089-1 Gaia DR2 3815313869597837952 ADS 8088
 
 
ORBITAL ELEMENTS
 
 
Period (P)2376.8447y± 1038.8479 Periastron (T)1659.1925y± 497.5062 Semi-major axis (a)12.63085a± 7.04541
Eccentricity (e)0.82892± 0.14203 Inclination (i)103.54°± 9.761 Longitude of periastron (ω)307.79°± 53.719
Node (Ω)168.448°± 31.485 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 46.5 3.875
2001 46.3 3.889
2002 46.1 3.904
2003 45.9 3.919
2004 45.7 3.934
2005 45.5 3.949
2006 45.3 3.964
2007 45.1 3.979
2008 44.9 3.995
2009 44.7 4.010
2010 44.5 4.025
2011 44.3 4.040
2012 44.1 4.055
2013 43.9 4.071
2014 43.7 4.086
2015 43.5 4.101
2016 43.3 4.116
2017 43.1 4.132
2018 43.0 4.147
2019 42.8 4.163
2020 42.6 4.178
2021 42.4 4.193
2022 42.2 4.209
2023 42.1 4.224
2024 41.9 4.240
2025 41.7 4.255
2026 41.5 4.271
2027 41.4 4.287
2028 41.2 4.302
2029 41.0 4.318
2030 40.9 4.333


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



 
 


wds11128%2B0453a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic