21467-0010 BNG 2
21h 46m 40.46s -00° 10' 24.1" P.A. 251.00 sep 31.6 mag 7.49,18.85 Sp M4+T8.5
Coord 2000 |
21467-0010 |
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Discov num |
BNG 2 |
|
Comp |
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|
Coord arcsec 2000 |
21 46 40.46 -00 10 24.1 |
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Date first |
2007 |
|
Date last |
2009 |
|
Obs |
3 |
|
Pa first |
253 |
|
Pa last |
250.5 |
|
P.A. Now (θ) |
250.5° |
|
Sep first |
32.2 |
|
Sep last |
31.64 |
|
Sep. Now (ρ) |
31.64" |
|
Mag pri |
7.49 |
|
Mag sec |
18.85 |
|
delta mag (ΔM) |
11.36 |
|
Spectral class |
M4+T8.5 (red/brown dwarf) |
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Pri motion ra |
+765 |
|
Sec motion ra |
|
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Pri motion dec |
-497 |
|
Sec motion dec |
|
|
Notes |
N
V
K
(See Notes, Proper motion indicates physical, 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
WDS 21467-0010 BNG 2 : NOTES
discov_num |
notes |
refcode |
BNG 2 |
Burningham et al. (2009) determine that ULAS J214638.83-001038.7 is a |
Bng2009 |
|
CPM companion to the high proper motion M4 dwarf Wolf 940. Spectral |
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type of the companion is T8.5 +/- 0.5. Given the distance to Wolf 940 |
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= 12.50 +0.75/-0.67 pc, the 32" angular separation corresponds to a |
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projected separation of 400 +/- 22 au. Mass of the companion is 20-32 |
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Mjup, Teff 570 +/- 25K, radius 0.094 +/- 0.004 Rsun. Observations |
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using Keck laser guide star AO indicated no evidence of any close |
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companion to the T8 companion. JHK photometry of the primary is from |
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2MASS. |
TMA2003 |
REFERENCES
refcode |
metd |
author |
reference |
Bng2009 |
C+ j |
Burningham, B., Pinfield, D.J., Leggett, S.K., Tinney, C.G., Liu, M., Homeier, D., |
2009MNRAS.395.1237B |
Bng2009 |
+E2 |
West, A.A., Day-Jones, A., Huelamo, N., Dupuy, T.J., Zhang, Z., Murray, D. et al. |
|
Bng2009 |
+Xr |
MNRAS 395, 1237, 2009 |
|
TMA2003 |
E2 j |
2MASS Catalog |
. |
TMA2003 |
|
2MASS Point Src Cat., 2003 all-sky release (http://pegasus.phast.umass.edu/) |
|
TMA2003 |
|
(Note: 2MASS photometry also added by cataloguer to 2MASS astrometry published |
|
TMA2003 |
|
under other references.) |
|
TMA2003 |
|
Thurgood Marshall High School |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
21467-0010 |
BNG 2 |
|
2007 |
1 |
253 |
32.2 |
7.49 |
18.85 |
M4 T8.5 |
N K |
214640.47-001025.4 |
21467-0010 |
BNG 2 |
|
2009 |
3 |
251 |
31.6 |
7.49 |
18.85 |
M4+T8.5 |
NV K |
214640.46-001024.1 |
21467-0010 |
BNG 2 |
|
2010 |
4 |
250 |
30.3 |
7.49 |
18.85 |
M4+T8.5 |
NV K |
214640.46-001024.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 21467-0010 BNG 2 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 21467-0010 BNG 2 : MEASURES
No records found.
WDS 21467-0010 : VIRTUAL EYEPIECE
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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WDS 21467-0010 : ALADIN DSS IMAGE @ 21h 46m 40.46s -00° 10' 24.1"
WDS 21467-0010 BNG 2 : 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 |
|
21467-0010 |
BNG 2 |
|
251 |
31.6 |
|
Show |
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21467+0007 |
CHE 323 |
|
316 |
28.5 |
5 |
Show |
|
21459+0015 |
CHE 320 |
|
274 |
13.1 |
12 |
Show |
|
21453+0007 |
CHE 318 |
|
121 |
26.3 |
21 |
Show |
|
21457+0031 |
CHE 319 |
|
101 |
29.3 |
25 |
Show |
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21451+0022 |
SLW1252 |
|
143 |
18.9 |
27 |
Show |
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21486-0008 |
BAL 932 |
|
75 |
6.9 |
29 |
Show |
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21447-0003 |
CHE 317 |
|
223 |
29.2 |
30 |
Show |
|
21452-0030 |
TOK 348 |
|
57 |
146.2 |
31 |
Show |
|
21444+0008 |
CHE 316 |
|
297 |
38.4 |
35 |
Show |
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21466+0045 |
CHE 321 |
|
201 |
21.2 |
35 |
Show |
|
21469+0051 |
STF2825 |
|
156 |
0.4 |
41 |
Show |
|
21493-0032 |
SLW1253 |
|
314 |
177.4 |
45 |
Show |
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21496-0026 |
BAL 933 |
|
154 |
9.5 |
47 |
Show |
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21435+0003 |
CHE 314 |
|
229 |
37.8 |
49 |
Show |
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21498+0023 |
UC 4576 |
|
339 |
13.2 |
50 |
Show |
|
21437+0030 |
CHE 315 |
|
334 |
9.6 |
52 |
Show |
|
21483-0058 |
BAL 626 |
|
110 |
30.6 |
54 |
Show |
|
21467+0110 |
CHE 322 |
|
130 |
9.7 |
60 |
Show |
|
21428+0028 |
CHE 313 |
|
180 |
7.1 |
61 |
Show |
|
21426-0013 |
UC 4535 |
|
143 |
19.5 |
62 |
Show |
|
21426+0027 |
WAA9001 |
|
27 |
1.7 |
63 |
Show |
|
21442+0102 |
LDS6359 |
|
144 |
7.2 |
64 |
Show |
|
21435+0052 |
WAA9003 |
|
9 |
0.9 |
64 |
Show |
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21424+0027 |
AOT 107 |
BC |
174 |
6.4 |
66 |
Show |
|
21424+0027 |
STF2817 |
AB |
155 |
26.1 |
66 |
Show |
|
21424+0027 |
AOT 107 |
AC |
157 |
35.7 |
66 |
Show |
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21423+0021 |
CHE 312 |
|
282 |
24.0 |
66 |
Show |
|
21427-0039 |
WAA9002 |
|
80 |
1.2 |
67 |
Show |
|
21424+0037 |
SMA 152 |
AC |
102 |
17.4 |
69 |
Show |
|
21424+0037 |
BAL1236 |
AB |
312 |
15.6 |
69 |
Show |
|
21424+0037 |
SMA 152 |
BC |
112 |
30.8 |
70 |
Show |
|
21422+0040 |
CHE 311 |
|
229 |
22.3 |
73 |
Show |
|
21416+0013 |
CHE 308 |
|
186 |
10.8 |
76 |
Show |
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21417-0024 |
UC 4532 |
|
160 |
17.3 |
76 |
Show |
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21498+0110 |
GRV1234 |
|
176 |
13.2 |
77 |
Show |
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21417-0036 |
J 1409 |
|
327 |
3.8 |
79 |
Show |
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21415+0000 |
CHE 307 |
|
80 |
21.7 |
79 |
Show |
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21421+0059 |
CHE 310 |
|
30 |
20.9 |
84 |
Show |
|
21421+0104 |
CHE 309 |
|
336 |
27.3 |
88 |
Show |
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21409-0035 |
J 1408 |
|
356 |
6.6 |
89 |
Show |
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21406-0018 |
AOT 106 |
|
83 |
16.6 |
92 |
Show |
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21406-0023 |
CVR 914 |
|
12 |
29.8 |
93 |
Show |
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21404+0003 |
AOT 105 |
|
159 |
18.7 |
96 |
Show |
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21531+0009 |
SLW1255 |
|
61 |
87.0 |
97 |
Show |
|
21404+0034 |
SMA 151 |
|
124 |
4.5 |
99 |
Show |
|
21486-0124 |
GWP3094 |
|
84 |
30.9 |
99 |
Show |
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21406+0051 |
SLW1247 |
|
225 |
162.8 |
100 |
Show |
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21513-0100 |
LDS 760 |
|
36 |
24.6 |
100 |
Show |
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21466-0127 |
J 615 |
|
349 |
5.3 |
100 |
Show |
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21448-0129 |
CVR 917 |
|
176 |
16.5 |
104 |
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WDS 21467-0010 : COMPONENTS
21467-0010 A
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
214640.46-001024.1 |
|
Mag |
7.49 |
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Spectral class |
M4 (red) |
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PmRA |
765.00 |
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PmDE |
-497.0 |
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21467-0010 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
214638.47+001013.5 |
|
Mag |
18.85 |
|
Spectral class |
T8.5 (brown dwarf) |
|
Calc delta mag |
11.36 |
|
Calc coord |
yes |
|