15348-2952 BUG 3
15h 34m 49.84s -29° 52' 27.4" P.A. 194.00 sep 0.2 mag 15.50,16.00 Sp T4.5+T5.0
Coord 2000 |
15348-2952 |
|
Discov num |
BUG 3 |
|
Comp |
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Coord arcsec 2000 |
15 34 49.84 -29 52 27.4 |
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Date first |
2000 |
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Date last |
2015 |
|
Obs |
32 |
|
Pa first |
357 |
|
Pa last |
194 |
|
P.A. Now (θ) |
10° |
|
Sep first |
0.1 |
|
Sep last |
0.213 |
|
Sep. Now (ρ) |
0.166" |
|
Mag pri |
15.50 |
|
Mag sec |
16.00 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
T4.5+T5.0 (brown dwarf/brown dwarf) |
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Pri motion ra |
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Sec motion ra |
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Pri motion dec |
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Sec motion dec |
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Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
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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
ORBITAL ELEMENTS
Period (P) | 20.38y | ± 0.06 |
Periastron (T) | 62400d (2029.721y) | ± 900 |
Semi-major axis (a) | 213.92m | ± 0.27 |
Eccentricity (e) | 0.0058 | ± 0.0028 |
Inclination (i) | 85.55° | ± 0.08 |
Longitude of periastron (ω) | 80° | ± 40 |
Node (Ω) | 13.61° | ± 0.05 |
Notes | n | |
Reference | Dip2017 | |
Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
331.0 |
0.025 |
2001 |
2.9 |
0.083 |
2002 |
8.3 |
0.138 |
2003 |
10.8 |
0.181 |
2004 |
12.4 |
0.207 |
2005 |
13.8 |
0.213 |
2006 |
15.3 |
0.200 |
2007 |
17.1 |
0.168 |
2008 |
20.2 |
0.120 |
2009 |
28.7 |
0.061 |
2010 |
125.4 |
0.018 |
2011 |
181.3 |
0.073 |
2012 |
187.8 |
0.130 |
2013 |
190.5 |
0.176 |
2014 |
192.2 |
0.204 |
2015 |
193.7 |
0.214 |
2016 |
195.1 |
0.204 |
2017 |
196.8 |
0.175 |
2018 |
199.5 |
0.129 |
2019 |
206.1 |
0.073 |
2020 |
261.4 |
0.018 |
2021 |
358.1 |
0.060 |
2022 |
6.8 |
0.118 |
2023 |
10.0 |
0.166 |
2024 |
11.8 |
0.199 |
2025 |
13.3 |
0.213 |
2026 |
14.7 |
0.207 |
2027 |
16.3 |
0.182 |
2028 |
18.8 |
0.139 |
2029 |
24.0 |
0.084 |
2030 |
55.1 |
0.025 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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WDS 15348-2952 BUG 3 : NOTES
discov_num |
notes |
refcode |
BUG 3 |
Liu et al (2008) estimate spectral types T5.0 +/- 0.5 and T5.5 +/- 0.5 |
LiM2008 |
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and effective temperatures 1028 +/- 17 and 978 +/- 17K. Orbital |
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elements, determined using a Markov Monte Carlo technique, yield |
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masses 0.0287 +/- 0.0016 and 0.0269 +/- 0.0016 Msun. Age of the system |
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is estimated at 0.78 +/- 0.09 Gyr. |
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Assuming a parallactic distance of 13.59 +/- 0.22 pc |
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(Tinney et al. 2003), Konopacky et al. (2010) derive a system mass of |
Bug2003b |
|
0.060 +/- 0.004 Msun. |
Kon2010 |
REFERENCES
refcode |
metd |
author |
reference |
Bug2003b |
- |
Tinney, C.G., Burgasser, A.J., & Kirkpatrick, J.D. |
2003AJ....126..975T |
Bug2003b |
|
AJ 126, 975, 2003 |
|
Kon2010 |
Ag j |
Konopacky, Q.M., Ghez, A.M., Barman, T.S., Rice, E.L., Bailey, III, J.I., |
2010ApJ...711.1087K |
Kon2010 |
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White, R.J., McLean, I.S., & Duchene, G. |
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Kon2010 |
|
ApJ 711, 1087, 2010 |
|
LiM2008 |
Ag j |
Liu, M.C., Dupuy, T.J., & Ireland, M.J. |
2008ApJ...689..436L |
LiM2008 |
+Ha |
ApJ 689, 436, 2008 |
2003ApJ...586..512B |
LiM2008 |
+Hp |
(included re-reduction of HST data originally published in Bug2003 and Boy2008) |
2008A&A...481..757B |
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 |
15348-2952 |
BUG 3 |
|
2015 |
32 |
194 |
0.2 |
15.50 |
16.00 |
T4.5+T5.0 |
NO K |
153449.84-295227.4 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 15348-2952 BUG 3 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 15348-2952 BUG 3 : MEASURES
No records found.
WDS 15348-2952 : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
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WDS 15348-2952 : ALADIN DSS IMAGE @ 15h 34m 49.84s -29° 52' 27.4"
WDS 15348-2952 BUG 3 : NEIGHBORHOODS
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Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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Show |
name |
coord_2000 |
discov# |
comp |
pa |
sep |
dist(') |
Show |
|
15348-2952 |
BUG 3 |
|
194 |
0.2 |
|
Show |
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15358-2959 |
KOH 41 |
|
256 |
0.9 |
15 |
Show |
|
15359-2934 |
RSS 379 |
|
287 |
10.6 |
23 |
Show |
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15331-2957 |
RST1843 |
|
290 |
1.1 |
24 |
Show |
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15325-3007 |
LDS5839 |
|
72 |
369.5 |
35 |
Show |
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15382-2958 |
DAW 144 |
|
302 |
1.5 |
45 |
Show |
|
15363-3035 |
B 294 |
|
209 |
1.9 |
47 |
Show |
|
15340-2907 |
SWR 177 |
|
286 |
11.6 |
47 |
Show |
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15353-2903 |
RSS 378 |
|
62 |
11.9 |
50 |
Show |
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15387-2947 |
RIZ 16 |
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-1 |
0.0 |
51 |
Show |
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15316-2925 |
TDS9537 |
|
8 |
0.6 |
51 |
Show |
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15315-3022 |
KOH 40 |
AB |
29 |
0.2 |
53 |
Show |
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15315-3022 |
KOH 40 |
AB,C |
19 |
1.2 |
53 |
Show |
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15316-3037 |
BRT3019 |
|
236 |
4.5 |
61 |
Show |
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15391-2928 |
UC 3036 |
|
330 |
46.7 |
61 |
Show |
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15396-2954 |
KOH 44 |
|
249 |
0.2 |
62 |
Show |
|
15314-2908 |
UC 3020 |
|
237 |
40.7 |
63 |
Show |
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15347-3055 |
LDS4560 |
|
27 |
11.5 |
64 |
Show |
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15396-3011 |
BVD 116 |
|
171 |
16.1 |
65 |
Show |
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15398-3001 |
BRT3023 |
|
131 |
3.3 |
66 |
Show |
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15367-2851 |
B 295 |
|
142 |
1.2 |
67 |
Show |
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15383-2901 |
SWR 179 |
|
78 |
15.4 |
69 |
Show |
|
15362-2841 |
LDS5841 |
|
292 |
8.5 |
73 |
Show |
|
15382-3059 |
HJ 2787 |
|
135 |
15.3 |
80 |
Show |
|
15317-3103 |
SKF2042 |
|
151 |
73.7 |
82 |
Show |
|
15291-2919 |
KPP2503 |
|
192 |
22.4 |
83 |
Show |
|
15360-2825 |
KPP1289 |
|
320 |
9.8 |
89 |
Show |
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15379-3115 |
I 243 |
|
325 |
1.0 |
92 |
Show |
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15332-3122 |
PRO 122 |
|
36 |
4.6 |
92 |
Show |
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15419-3009 |
ARG 28 |
AB |
24 |
35.0 |
94 |
Show |
|
15419-3009 |
ARG 28 |
AC |
332 |
35.8 |
94 |
Show |
|
15419-3009 |
ARG 28 |
AD |
324 |
88.6 |
94 |
Show |
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15294-2851 |
DAW 143 |
|
168 |
1.6 |
94 |
Show |
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15414-2910 |
RST1855 |
AB |
66 |
2.6 |
96 |
Show |
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15290-2852 |
BU 1114 |
AB |
317 |
0.2 |
98 |
Show |
|
15290-2852 |
HJ 4774 |
AB,C |
11 |
9.7 |
98 |
Show |
|
15389-3117 |
KOH 43 |
AB |
240 |
0.7 |
100 |
Show |
|
15389-3117 |
KOH 43 |
AB,C |
192 |
4.5 |
100 |
Show |
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15418-2903 |
RST1856 |
|
208 |
2.0 |
105 |
Show |
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15348-2808 |
RST1847 |
AB |
343 |
1.0 |
105 |
Show |
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15348-2808 |
TOK 49 |
Aa,Ab |
321 |
0.2 |
105 |
Show |
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15375-3132 |
I 242 |
|
39 |
2.0 |
105 |
Show |
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15420-3043 |
DAW 211 |
BC |
94 |
7.2 |
106 |
Show |
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15416-3051 |
KPP 351 |
|
45 |
3.5 |
106 |
Show |
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15420-3043 |
HJ 2789 |
AB |
303 |
29.3 |
106 |
Show |
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15426-3030 |
WFC 166 |
|
24 |
9.5 |
108 |
Show |
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15370-3137 |
RST1850 |
BC |
135 |
1.4 |
108 |
Show |
|
15370-3137 |
RST1850 |
AB |
281 |
4.8 |
109 |
Show |
|
15370-2808 |
I 1271 |
|
151 |
2.0 |
109 |
Show |
|
15279-2852 |
LDS4553 |
|
122 |
13.5 |
110 |
Show |
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15400-3123 |
I 244 |
|
24 |
1.1 |
113 |
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WDS 15348-2952 : COMPONENTS
15348-2952 A
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
153449.84-295227.4 |
|
Mag |
15.5 |
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Spectral class |
T4.5 (brown dwarf) |
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15348-2952 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
153449.84-295227.6 |
|
Mag |
16 |
|
Spectral class |
T5.0 (brown dwarf) |
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Calc delta mag |
0.5 |
|
Calc coord |
yes |
|