16019-2159 LAF 92 AC
16h 01m 55.45s -21° 58' 49.4" P.A. 43.00 sep 9.5 mag 6.90,17.01 Sp B9V dist. 156.74 pc (511.29 l.y.)
Coord 2000 |
16019-2159 |
|
Discov num |
LAF 92 |
|
Comp |
AC |
|
Coord arcsec 2000 |
16 01 55.45 -21 58 49.4 |
|
Date first |
2008 |
|
Date last |
2008 |
|
Obs |
1 |
|
Pa first |
43 |
|
Pa last |
43.4 |
|
P.A. Now (θ) |
43.4° |
|
Sep first |
9.5 |
|
Sep last |
9.451 |
|
Sep. Now (ρ) |
9.451" |
|
Mag pri |
6.90 |
|
Mag sec |
17.01 |
|
delta mag (ΔM) |
10.11 |
|
Spectral class |
B9V (blue-white) |
|
Pri motion ra |
-012 |
|
Sec motion ra |
|
|
Pri motion dec |
-024 |
|
Sec motion dec |
|
|
Notes |
N
U
K
(See Notes, Proper motion indicates non-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 not physical.
16019-2159 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
184043 |
16 01 55 -21 58 49 |
KOU 44 AB |
2011 |
6 |
140 |
4.5 |
6.87 |
14.22 |
7.35 |
|
|
Show |
|
184043 |
16 01 55 -21 58 49 |
LAF 92 AC |
2008 |
1 |
43 |
9.5 |
6.90 |
17.01 |
10.11 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Scorpius |
|
SAO |
184043 |
|
HIP |
78530 |
|
Tycho2 |
6212-01713-1 |
|
Gaia DR2 |
6243537406369453824 |
|
HD |
143567 |
|
BD |
BD-21 4255 |
|
Distance |
156.74 |
|
Distance ly |
511.29 |
|
WDS 16019-2159 LAF 92 AC : NOTES
discov_num |
notes |
refcode |
KOU 44 |
Followup imaging by Lafreniere et al. (2011) indicates that components |
|
|
share common proper motion. Spectral types are B9V and M8 +/- 1; mass |
|
|
of the secondary is estimated from models at 0.022 +/- 0.004 Msun. |
Laf2011 |
|
Lachapelle et al. (2015) derive the following properties: |
|
|
spectral types | B9V | M7 +/- 0.5 |
|
|
Teff(K) | ~10,500 | 2700 +/- 100 |
|
|
log(L/Lsun) | | -2.53 +/- 0.09 |
|
|
Mass (Msun) (5 Myr) | ~2.5 | 0.022 +/- 0.001 |
|
|
Mass (Msun) (10 Myr) | ~2.5 | 0.023 +/- 0.002 |
|
|
Distance (pc) | 156.7 +/- 13.0 | |
|
|
Projected separation (AU) | 740 +/- 60 | |
Lch2015 |
REFERENCES
refcode |
metd |
author |
reference |
Laf2011 |
A u |
Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., & |
2011ApJ...730...42L |
Laf2011 |
|
Hauschildt, P. |
|
Laf2011 |
|
ApJ 730, 42, 2011 |
|
Laf2011 |
|
(photometry of both components based on 2MASS PSC plus their contrast measures) |
|
Lch2015 |
A j |
Lachapelle, F.-R., Lafreniere, D., Gagne, J., Jayawardhana, R., Janson, M., |
2015ApJ...802...61L |
Lch2015 |
|
Helling, C., & Witte, S. |
|
Lch2015 |
|
ApJ 802, 61, 2015 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
KOU |
Kouwenhoven, M.B.N., Brown, A.G., Zinnecker, H., Kaper, L., & Portegies Zwart, S. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
16019-2159 |
LAF 92 |
AC |
2008 |
1 |
43 |
9.5 |
6.90 |
17.01 |
B9V |
NU K |
160155.45-215849.4 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 16019-2159 LAF 92 AC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 16019-2159 LAF 92 AC : MEASURES
No records found.
WDS 16019-2159 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 16019-2159 : ALADIN DSS IMAGE @ 16h 01m 55.45s -21° 58' 49.4"
WDS 16019-2159 LAF 92 AC : NEIGHBORHOODS
|
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
Show |
name |
coord_2000 |
discov# |
comp |
pa |
sep |
dist(') |
Show |
|
16019-2159 |
KOU 44 |
AB |
140 |
4.5 |
|
Show |
|
16019-2159 |
LAF 92 |
AC |
43 |
9.5 |
|
Show |
|
16005-2209 |
BOY 16 |
|
41 |
0.9 |
23 |
Show |
|
16035-2213 |
HU 914 |
|
338 |
3.1 |
26 |
Show |
|
16040-2156 |
LDS 548 |
|
154 |
10.2 |
30 |
Show |
|
16011-2228 |
KOH 65 |
|
340 |
0.3 |
31 |
Show |
|
16000-2221 |
USD 264 |
AB |
343 |
0.3 |
35 |
Show |
|
16000-2221 |
KSA 122 |
BC |
108 |
0.1 |
35 |
Show |
|
16020-2236 |
BOY 19 |
AB |
6 |
0.2 |
38 |
Show |
|
16020-2236 |
BOY 19 |
AC |
93 |
2.5 |
38 |
Show |
|
15593-2211 |
TOK 739 |
|
84 |
0.1 |
39 |
Show |
|
16014-2237 |
BOY 17 |
AB |
344 |
0.1 |
40 |
Show |
|
16014-2237 |
BOY 17 |
AC |
1 |
1.1 |
40 |
Show |
|
16046-2139 |
TOK 743 |
AB |
133 |
0.1 |
43 |
Show |
|
16046-2139 |
TOK 743 |
AB,C |
94 |
5.5 |
43 |
Show |
|
16014-2241 |
MET 67 |
AB |
37 |
6.5 |
43 |
Show |
|
16014-2241 |
MET 67 |
AC |
311 |
9.5 |
43 |
Show |
|
16014-2241 |
MET 67 |
AD |
73 |
10.1 |
43 |
Show |
|
16014-2241 |
MSR 6 |
AE |
283 |
14.3 |
43 |
Show |
|
16014-2241 |
MSR 6 |
AF |
289 |
15.8 |
43 |
Show |
|
16014-2241 |
MSR 6 |
AG |
299 |
16.7 |
43 |
Show |
|
16014-2241 |
MSR 6 |
AH |
170 |
17.0 |
43 |
Show |
|
16022-2241 |
KOU 46 |
AB |
48 |
12.0 |
43 |
Show |
|
16022-2241 |
LAF 94 |
AC |
309 |
0.2 |
43 |
Show |
|
16022-2241 |
LAF 94 |
AD |
91 |
6.2 |
43 |
Show |
|
16022-2241 |
BNV 10 |
Aa,Ab |
183 |
0.3 |
43 |
Show |
|
16022-2240 |
GHE 18 |
AB |
306 |
0.2 |
43 |
Show |
|
16022-2240 |
LAF 93 |
AC |
131 |
7.7 |
43 |
Show |
|
16043-2131 |
KOH 71 |
|
152 |
0.1 |
44 |
Show |
|
16044-2130 |
LAF 102 |
|
93 |
9.3 |
45 |
Show |
Dschubba |
16003-2237 |
LAB 3 |
|
16 |
0.1 |
45 |
Show |
|
16007-2241 |
TOK 740 |
|
61 |
0.1 |
46 |
Show |
|
16036-2246 |
IRE 2 |
|
206 |
10.8 |
53 |
Show |
|
16038-2245 |
USD 407 |
|
39 |
0.1 |
54 |
Show |
|
16057-2150 |
KOU 49 |
AB |
164 |
9.0 |
54 |
Show |
|
16057-2150 |
LAF 104 |
AC |
329 |
0.1 |
54 |
Show |
|
16057-2150 |
LAF 104 |
AD |
106 |
3.9 |
54 |
Show |
|
16057-2150 |
LAF 104 |
AE |
224 |
10.8 |
54 |
Show |
|
16057-2150 |
LAF 104 |
AF |
224 |
10.8 |
54 |
Show |
|
15587-2125 |
DON 770 |
|
198 |
2.0 |
58 |
Show |
|
15585-2124 |
JKS 8 |
AB |
338 |
19.1 |
60 |
Show |
|
15585-2124 |
HNK 5 |
Aa,Ab |
20 |
0.1 |
60 |
Show |
|
16017-2258 |
BOY 18 |
|
356 |
0.7 |
60 |
Show |
|
16030-2257 |
KSA 81 |
|
59 |
1.2 |
60 |
Show |
|
16060-2227 |
USD 514 |
|
149 |
0.2 |
64 |
Show |
|
15598-2058 |
RST2990 |
|
177 |
0.2 |
68 |
Show |
|
16069-2152 |
B 1800 |
AB |
234 |
2.4 |
69 |
Show |
|
16018-2050 |
KOH 67 |
|
351 |
0.1 |
70 |
Show |
|
15586-2257 |
MET 65 |
AB |
|
6.6 |
75 |
Show |
|
15586-2257 |
MET 65 |
AC |
358 |
7.7 |
75 |
Show |
|
15586-2257 |
MET 65 |
AD |
129 |
8.4 |
75 |
|
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WDS 16019-2159 : COMPONENTS
|
A |
B |
B |
pa=142.4°
sep=4.40"
| |
C |
pa=41.2°
sep=9.13"
| pa=17.9°
sep=10.88"
|
16019-2159 A
Coord arcsec 2000 |
160155.45-215849.4 |
|
Mag |
6.87 |
|
Spectral class |
B9V (blue-white) |
|
PmRA |
-12.00 |
|
PmDE |
-24.0 |
|
SAO |
184043 |
|
HIP |
78530 |
|
Tycho2 |
6212-01713-1 |
|
HD |
143567 |
|
BD |
BD-21 4255 |
|
Tycho2 |
6212-01713-1 |
|
Pflag |
|
|
RAmdeg |
240.48106286 |
|
DEmdeg |
-21.98038747 |
|
PmRA |
-11.4 |
|
PmDE |
-23.6 |
|
E RAmdeg |
4 |
|
E DEmdeg |
5 |
|
E pmRA |
1.4 |
|
E pmDE |
1.4 |
|
EpRAm |
1991.45 |
|
EpDEm |
1991.03 |
|
Num |
11 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
0.8 |
|
Q pmRA |
0.9 |
|
Q pmDE |
0.8 |
|
BTmag |
7.296 |
|
E BTmag |
0.015 |
|
VTmag |
7.203 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
78530 |
|
CCDM |
|
|
RAdeg |
240.48109111 |
|
DEdeg |
-21.98033139 |
|
EpRA 1990 |
1.71 |
|
EpDE 1990 |
1.42 |
|
E RAdeg |
4.2 |
|
E DEdeg |
5.4 |
|
Posflg |
|
|
Corr |
-0.1 |
|
SAO |
184043 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.001 |
|
DE1950 |
|
|
PmDE1950 |
-0.012 |
|
Vmag |
7.3 |
|
SpType |
B9 |
|
Double code |
|
|
Source |
23 |
|
CatNum |
6614 |
|
DM |
BD-21 4255 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
143567 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
4.18431112 |
|
DE1950rad |
-0.38120303 |
|
PmRA2000 |
-0.001 |
|
PmDE2000 |
-0.009 |
|
Catalog |
H |
|
HIP |
78530 |
|
Proxy |
|
|
RAhms |
16 01 55.46 |
|
DEdms |
-21 58 49.2 |
|
Vmag |
7.19 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
240.481 |
|
DEdeg |
-21.9803 |
|
AstroRef |
|
|
Plx |
7.58 |
|
CCDM |
|
|
N CCDM |
|
|
Nsys |
|
|
Ncomp |
1 |
|
MultFlag |
|
|
Source |
|
|
Qual |
|
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
143567 |
|
BD |
BD-21 4255 |
|
CD |
|
|
CP |
|
|
Dm number |
-21 4255 |
|
VIred |
0.08 |
|
SpType |
B9V |
|
R SpType |
|
|
Coord arcsec 2000 |
160155.46-215849.2 |
|
HIP |
78530 |
|
Sn |
5 |
|
So |
0 |
|
Nc |
1 |
|
RArad |
4.1971868612 |
|
DErad |
-0.383629123 |
|
Plx |
6.38 |
|
PmRA |
-11.38 |
|
PmDE |
-24.66 |
|
E RArad |
0.47 |
|
E DErad |
0.29 |
|
E Plx |
0.53 |
|
E pmRA |
0.59 |
|
E pmDE |
0.37 |
|
Hpmag |
7.2224 |
|
E Hpmag |
0.0008 |
|
SHp |
0.006 |
|
VA |
0 |
|
BV |
0.089 |
|
E BV |
0.01 |
|
VI |
0.1 |
|
16019-2159 B
Coord arcsec 2000 |
160155.64-215852.9 |
|
Mag |
14.22 |
|
Calc delta mag |
7.35 |
|
Calc coord |
yes |
|
16019-2159 C
Coord arcsec 2000 |
160155.88-215842.5 |
|
Mag |
17.01 |
|
Calc delta mag |
10.14 |
|
Calc coord |
yes |
|