10212-0304 BUG 10

 
 
10h 21m 09.69s -03° 04' 19.7" P.A. 164.00 sep 0.2 mag 17.81,17.87 Sp T1+T5
 
 
Coord 2000 10212-0304 Discov num BUG  10 Comp Coord arcsec 2000 10 21 09.69 -03 04 19.7
Date first 2004 Date last 2013 Obs 9
Pa first 245 Pa last 163.8 P.A. Now (θ) 163.8°
Sep first 0.2 Sep last 0.153 Sep. Now (ρ) 0.153"
Mag pri 17.81 Mag sec 17.87 delta mag (ΔM) 0.06 Spectral class T1+T5 (brown dwarf/brown dwarf)
Pri motion ra Sec motion ra
Pri motion dec Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sextans
 
 
ORBITAL ELEMENTS
 
 
Period (P)75y± 17 Periastron (T)82000d (2083.384y)± 6000 Semi-major axis (a)224m± 28
Eccentricity (e)0.31± 0.07 Inclination (i)161°± 7 Longitude of periastron (ω)70°± 120
Node (Ω)260°± 100 Notesn ReferenceDup2017
Equinox Last observation2013 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 261.0 0.184
2001 254.3 0.178
2002 247.3 0.172
2003 239.8 0.167
2004 231.8 0.162
2005 223.2 0.157
2006 214.2 0.153
2007 204.7 0.150
2008 194.9 0.148
2009 184.9 0.147
2010 174.9 0.147
2011 165.0 0.149
2012 155.5 0.153
2013 146.5 0.157
2014 138.0 0.162
2015 130.1 0.168
2016 122.7 0.175
2017 115.9 0.182
2018 109.6 0.188
2019 103.7 0.195
2020 98.2 0.202
2021 93.1 0.209
2022 88.3 0.215
2023 83.7 0.221
2024 79.4 0.227
2025 75.3 0.233
2026 71.4 0.238
2027 67.7 0.243
2028 64.1 0.248
2029 60.6 0.252
2030 57.3 0.256


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



 
 


wds10212-0304a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic