15348-2952 BUG   3

 
 
15h 34m 49.84s -29 52' 27.4" P.A. 195.5 sep 0.23 mag 15.50,16.00 Sp T5.0+T5.5
 
 
Coord 2000
15348-2952
Discov num
BUG   3
Comp
Coord arcsec 2000
15 34 49.84 -29 52 27.4
Date first
2000
Date last
2009
Obs
16
Pa first
357
Pa last
39
P.A. Now (θ)
195.5°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0.23"
Mag pri
15.50
Mag sec
16.00
delta mag (ΔM)
0.5
Spectral class
T5.0+T5.5 (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)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Libra
last precise pa
38.5
last precise sep
0.039
 
 
ORBITAL ELEMENTS
 
 
Period (P)23.1y± 4 Periastron (T)2006.4y± 3 Semi-major axis (a)0.234a± 0.03
Eccentricity (e)0.1± 0.09 Inclination (i)85.6°± 0.4 Longitude of periastron (ω)25°± 90
Node (Ω)13.4°± 0.3 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.026 327.6
2001 0.079 1.1
2002 0.132 7.2
2003 0.175 10.0
2004 0.203 11.8
2005 0.213 13.3
2006 0.201 14.8
2007 0.170 16.6
2008 0.122 19.7
2009 0.063 28.1
2010 0.018 119.5
2011 0.072 180.1
2012 0.131 186.8
2013 0.182 189.5
2014 0.220 191.2
2015 0.245 192.4
2016 0.255 193.4
2017 0.250 194.4
2018 0.232 195.5
2019 0.201 196.9
2020 0.159 198.9
2021 0.108 202.6
2022 0.053 214.0
2023 0.022 315.9
2024 0.074 360.0
2025 0.127 6.8
2026 0.172 9.8
2027 0.201 11.6
2028 0.213 13.1
2029 0.203 14.6
2030 0.174 16.4

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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15348-2952 BUG 3 2000 1 1 0.1 15.50 16.00 DK 153449.84-295227.4
15348-2952 BUG 3 2006 3 15 0.2 15.50 16.00 DK 153449.84-295227.4
15348-2952 BUG 3 2008 12 21 0.1 15.50 16.00 T5.0 T5.5 NODK 153449.84-295227.4
15348-2952 BUG 3 2009 16 39 0.0 15.50 16.00 T5.0+T5.5 NODK 153449.84-295227.4

If you need more information about this double, apply for a data request form to the WDS.