10493-5319 LUH 16

 
 
10h 49m 18.81s -53° 19' 06.3" P.A. 309.00 sep 1.2 mag 15.50,15.90 Sp L7.5+T0.5
 
 
Coord 2000 10493-5319 Discov num LUH  16 Comp Coord arcsec 2000 10 49 18.81 -53 19 06.3
Date first 1984 Date last 2020 Obs 96
Pa first 321 Pa last 308.6 P.A. Now (θ) 308.6°
Sep first 1.8 Sep last 1.218 Sep. Now (ρ) 1.218"
Mag pri 15.50 Mag sec 15.90 delta mag (ΔM) 0.4 Spectral class L7.5+T0.5 (very deep red/brown dwarf)
Pri motion ra -176 Sec motion ra
Pri motion dec +036 Sec motion dec
Notes N O R (See Notes, Orbital solution, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vela Gaia DR2 5353625847691839488
 
 
ORBITAL ELEMENTS
 
 
Period (P)26.55y± 0.08 Periastron (T)2018.06j± 0.003 Semi-major axis (a)1.764a± 0.003
Eccentricity (e)0.344± 0.001 Inclination (i)79.92°± 0.008 Longitude of periastron (ω)136.67°± 0.09
Node (Ω)130.02°± 0.01 Notesn ReferenceBdi2024
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 87.3 0.546
2001 103.0 0.814
2002 110.8 1.091
2003 115.5 1.352
2004 118.7 1.587
2005 121.1 1.788
2006 123.1 1.951
2007 124.8 2.070
2008 126.4 2.140
2009 127.9 2.156
2010 129.4 2.111
2011 131.0 1.999
2012 132.9 1.813
2013 135.4 1.546
2014 139.1 1.195
2015 146.6 0.764
2016 176.6 0.310
2017 278.7 0.389
2018 300.1 0.829
2019 307.1 1.146
2020 311.8 1.271
2021 316.1 1.223
2022 321.4 1.054
2023 329.5 0.814
2024 344.8 0.556
2025 20.7 0.369
2026 70.6 0.425
2027 95.9 0.663
2028 107.1 0.940
2029 113.1 1.211
2030 117.0 1.461
2031 119.9 1.682
2032 122.1 1.867
2033 123.9 2.011
2034 125.5 2.108
2035 127.0 2.155
2036 128.5 2.144
2037 130.1 2.069
2038 131.8 1.925
2039 133.9 1.703
2040 136.8 1.399
2041 141.7 1.010
2042 153.9 0.554
2043 228.7 0.222
2044 292.3 0.592
2045 303.8 0.994
2046 309.3 1.226
2047 313.7 1.268
2048 318.3 1.159
2049 324.6 0.952
2050 335.0 0.697


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds10493-5319b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic