10522+4423 DUP 2

 
 
10h 52m 13.50s +44° 22' 55.9" P.A. 97.00 sep 0.1 mag 14.99,15.50 Sp L6.5+T1.5
 
 
Coord 2000 10522+4423 Discov num DUP   2 Comp Coord arcsec 2000 10 52 13.50 +44 22 55.9
Date first 2005 Date last 2014 Obs 30
Pa first 81 Pa last 97.2 P.A. Now (θ) 98.9°
Sep first 0.0 Sep last 0.055 Sep. Now (ρ) 0.056"
Mag pri 14.99 Mag sec 15.50 delta mag (ΔM) 0.51 Spectral class L6.5+T1.5 (very deep red/brown dwarf)
Pri motion ra +019 Sec motion ra
Pri motion dec -140 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ursa Major
 
 
ORBITAL ELEMENTS
 
 
Period (P)8.603y± 0.025 Periastron (T)58980d (2020.358y)± 14 Semi-major axis (a)70.61m± 0.24
Eccentricity (e)0.141± 0.0022 Inclination (i)62.1°± 0.3 Longitude of periastron (ω)186.8°± 1.6
Node (Ω)126.8°± 0.3 Notesn ReferenceDup2017
Equinox Last observation2014 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 151.3 0.061
2001 197.7 0.035
2002 273.1 0.045
2003 306.0 0.061
2004 338.8 0.045
2005 58.0 0.034
2006 104.6 0.062
2007 123.2 0.080
2008 138.7 0.074
2009 163.7 0.050
2010 232.1 0.033
2011 288.9 0.054
2012 316.7 0.058
2013 3.7 0.035
2014 83.6 0.044
2015 113.1 0.072
2016 129.1 0.080
2017 146.4 0.067
2018 183.2 0.039
2019 261.9 0.040
2020 300.5 0.060
2021 329.9 0.050
2022 39.8 0.032
2023 98.9 0.056
2024 120.0 0.078
2025 135.3 0.077
2026 156.6 0.056
2027 213.7 0.033
2028 281.4 0.050
2029 311.0 0.060
2030 349.3 0.040


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


 
  


wds10522%2B4423b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic