16542-4139 SNA 53 Aa,Ab
16h 54m 11.52s -41° 38' 30.9" P.A. 1.00 sep 0.0 mag 6.90,8.30 Sp O9.5III
Coord 2000 |
16542-4139 |
|
Discov num |
SNA 53 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
16 54 11.52 -41 38 30.9 |
|
Date first |
2010 |
|
Date last |
2014 |
|
Obs |
15 |
|
Pa first |
39 |
|
Pa last |
1.1 |
|
P.A. Now (θ) |
1.1° |
|
Sep first |
0.0 |
|
Sep last |
0.001 |
|
Sep. Now (ρ) |
0.001" |
|
Mag pri |
6.90 |
|
Mag sec |
8.30 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
O9.5III (blue) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-001 |
|
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.
16542-4139 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
227384 |
16 54 12 -41 38 31 |
SNA 53 Aa,Ab |
2014 |
15 |
1 |
0.0 |
6.90 |
8.30 |
1.40 |
Y |
<=== |
Show |
|
227384 |
16 54 12 -41 38 31 |
SNA 53 AB |
2012 |
1 |
313 |
3.2 |
6.59 |
13.83 |
7.24 |
|
|
Show |
|
227384 |
16 54 12 -41 38 31 |
SNA 53 AC |
2012 |
1 |
22 |
5.1 |
6.59 |
12.65 |
6.06 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Scorpius |
|
SAO |
227384 |
|
Tycho2 |
7876-02339-1 |
|
Gaia DR2 |
5966524419650392832 |
|
HD |
152247 |
|
ORBITAL ELEMENTS
Period (P) | 581.71d | ± 0.7 |
Periastron (T) | 71266d (2053.996y) | ± 19 |
Semi-major axis (a) | 2.871m | ± 0.065 |
Eccentricity (e) | 0.593 | ± 0.015 |
Inclination (i) | 76.8° | ± 2.8 |
Longitude of periastron (ω) | 144.6° | ± 2.4 |
Node (Ω) | 47.4° | ± 2.6 |
Notes | | |
Reference | LeB2017 | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
257.9 |
0.001 |
2001-01-01 |
45.9 |
0.004 |
2002-01-01 |
30.6 |
0.003 |
2003-01-01 |
198.3 |
0.001 |
2004-01-01 |
41.9 |
0.004 |
2005-01-01 |
14.4 |
0.001 |
2006-01-01 |
53.3 |
0.002 |
2007-01-01 |
37.9 |
0.004 |
2008-01-01 |
277.1 |
0.001 |
2009-01-01 |
46.7 |
0.004 |
2010-01-01 |
32.2 |
0.003 |
2011-01-01 |
220.3 |
0.001 |
2012-01-01 |
42.7 |
0.004 |
2013-01-01 |
19.6 |
0.002 |
2014-01-01 |
55.9 |
0.002 |
2015-01-01 |
38.8 |
0.004 |
2016-01-01 |
305.3 |
0.001 |
2017-01-01 |
47.7 |
0.004 |
2018-01-01 |
33.6 |
0.003 |
2019-01-01 |
229.3 |
0.001 |
2020-01-01 |
43.4 |
0.004 |
2021-01-01 |
23.4 |
0.002 |
2022-01-01 |
60.0 |
0.002 |
2023-01-01 |
39.6 |
0.004 |
2024-01-01 |
334.1 |
0.001 |
2025-01-01 |
48.7 |
0.003 |
2026-01-01 |
34.8 |
0.003 |
2027-01-01 |
236.7 |
0.001 |
2028-01-01 |
44.2 |
0.004 |
2029-01-01 |
26.3 |
0.002 |
2030-01-01 |
68.4 |
0.001 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 16542-4139 SNA 53 Aa,Ab : NOTES
discov_num |
notes |
refcode |
SNA 53 |
Aa,Ab: We resolve the long-period SB2 discussed in Sana et al. (2012). |
Sna2012 |
|
Four new faint wide companions are also detected in the NACO FOV. |
Sna2014 |
REFERENCES
refcode |
metd |
author |
reference |
LeB2017 |
orb j |
Le Bouquin, J.-B., Sana, H., Gosset, E., De Becker, M., Duvert, G., Absil, O., |
2017A&A...601A...34 |
LeB2017 |
+Kv |
Anthonioz, F., Berger, J.-P., Ertel, S., Grellmann, R., Guieu, S., Kervella, P., |
|
LeB2017 |
|
Rabus, M., & Willson, M. |
|
LeB2017 |
|
A&A 601, A34, 2017 |
|
Sna2012 |
not - |
Sana, H., de Mink, S.E., de Koter, A., et al. |
2012Sci...337..444S |
Sna2012 |
|
Science 337, 444, 2012 |
|
Sna2014 |
Kv j |
Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., |
2014ApJS..215...15S |
Sna2014 |
+A |
Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A., |
|
Sna2014 |
|
Kratter, K., Schnurr, O., & Zinnecker, H. |
|
Sna2014 |
|
ApJS 215, 15, 2014 |
|
Sna2014 |
|
(NACO companions in Table 6 assumed physical if quoted probability of spurious |
|
Sna2014 |
|
detection <10%, optical if >90%, otherwise indeterminate) |
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
16542-4139 |
SNA 53 |
Aa,Ab |
2014 |
2 |
235 |
0.0 |
6.90 |
8.30 |
O9.5III |
V K |
165411.52-413830.9 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 16542-4139 SNA 53 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 16542-4139 SNA 53 Aa,Ab : MEASURES
No records found.
WDS 16542-4139 : 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 16542-4139 : ALADIN DSS IMAGE @ 16h 54m 11.52s -41° 38' 30.9"
WDS 16542-4139 SNA 53 Aa,Ab : 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 |
|
16542-4139 |
SNA 53 |
Aa,Ab |
1 |
0.0 |
|
Show |
|
16542-4139 |
SNA 53 |
AB |
313 |
3.2 |
|
Show |
|
16542-4139 |
SNA 53 |
AC |
22 |
5.1 |
|
Show |
|
16538-4140 |
CPO 498 |
|
69 |
4.5 |
5 |
Show |
|
16540-4143 |
SEE 296 |
AC |
240 |
19.9 |
5 |
Show |
|
16540-4143 |
SNA 50 |
AB |
213 |
4.3 |
5 |
Show |
|
16542-4146 |
SEE 298 |
AB |
286 |
6.2 |
6 |
Show |
|
16542-4146 |
SEE 298 |
AC |
144 |
17.7 |
6 |
Show |
|
16540-4148 |
SEE 294 |
FG |
47 |
6.7 |
10 |
Show |
|
16540-4148 |
HJ 4892 |
FH |
300 |
8.8 |
10 |
Show |
|
16540-4148 |
SNA 51 |
Fa,Fb |
54 |
0.0 |
10 |
Show |
|
16540-4148 |
B 1833 |
AB |
75 |
0.5 |
11 |
Show |
|
16540-4148 |
B 1833 |
AC |
99 |
5.4 |
11 |
Show |
|
16540-4148 |
SEE 293 |
AD |
127 |
19.1 |
11 |
Show |
|
16540-4148 |
SEE 293 |
AE |
281 |
20.5 |
11 |
Show |
|
16540-4148 |
JC 23 |
AF |
19 |
56.7 |
11 |
Show |
|
16540-4148 |
SNA 51 |
Aa,Ab |
153 |
0.0 |
11 |
Show |
|
16545-4148 |
SNA 56 |
Aa,Ab |
63 |
0.0 |
11 |
Show |
|
16545-4148 |
SNA 56 |
AB |
187 |
3.2 |
11 |
Show |
|
16545-4148 |
SNA 56 |
AC |
141 |
3.5 |
11 |
Show |
|
16543-4149 |
B 1834 |
CD |
313 |
4.6 |
11 |
Show |
|
16543-4149 |
BRT 929 |
AB |
197 |
3.9 |
11 |
Show |
|
16542-4150 |
CHR 252 |
Aa,Ab |
237 |
0.1 |
11 |
Show |
|
16542-4150 |
SEE 297 |
AB |
130 |
13.2 |
11 |
Show |
|
16542-4150 |
SEE 297 |
AC |
122 |
23.1 |
11 |
Show |
|
16542-4150 |
SEE 300 |
DE |
265 |
7.8 |
12 |
Show |
|
16546-4150 |
BRT 934 |
|
266 |
3.0 |
12 |
Show |
|
16544-4150 |
HJ 4893 |
AB |
52 |
7.3 |
12 |
Show |
|
16544-4150 |
SNA 55 |
AC |
40 |
1.1 |
12 |
Show |
|
16544-4150 |
SNA 55 |
AD |
326 |
3.4 |
12 |
Show |
|
16543-4150 |
B 1835 |
|
256 |
3.5 |
12 |
Show |
|
16543-4151 |
CPO 500 |
|
313 |
3.7 |
12 |
Show |
|
16542-4151 |
SNA 54 |
Ba,Bb |
348 |
0.0 |
13 |
Show |
|
16542-4151 |
SNA 54 |
BC |
142 |
1.0 |
13 |
Show |
|
16542-4151 |
WFC 183 |
AB |
35 |
31.0 |
13 |
Show |
|
16541-4151 |
SEE 295 |
|
14 |
5.9 |
13 |
Show |
|
16539-4153 |
SNA 49 |
Aa,Ab |
345 |
0.1 |
15 |
Show |
|
16539-4153 |
SNA 49 |
AB |
18 |
2.2 |
15 |
Show |
|
16539-4153 |
SNA 49 |
AC |
332 |
2.9 |
15 |
Show |
|
16539-4153 |
SNA 49 |
AD |
145 |
5.1 |
15 |
Show |
|
16539-4153 |
SNA 49 |
AE |
65 |
5.3 |
15 |
Show |
|
16539-4153 |
SNA 49 |
AF |
175 |
7.2 |
15 |
Show |
|
16545-4153 |
SEE 302 |
AB |
33 |
3.2 |
16 |
Show |
|
16545-4153 |
SGH 1 |
AC |
277 |
4.1 |
16 |
Show |
|
16528-4147 |
SNA 47 |
|
91 |
0.0 |
18 |
Show |
|
16547-4121 |
TDS 843 |
|
91 |
1.1 |
19 |
Show |
|
16523-4136 |
B 1832 |
AB |
234 |
4.1 |
22 |
Show |
|
16523-4136 |
B 1832 |
AC |
143 |
5.2 |
22 |
Show |
|
16525-4126 |
CPO 495 |
|
85 |
4.4 |
23 |
Show |
|
16539-4115 |
RST1905 |
|
254 |
0.6 |
24 |
Show |
|
16548-4202 |
RST1907 |
|
190 |
2.0 |
25 |
|
|
WDS 16542-4139 : COMPONENTS
|
A |
Ab |
B |
Ab |
pa=0.8°
sep=0.00"
| |
B |
pa=321.7°
sep=2.76"
| pa=321.7°
sep=2.76"
| |
C |
pa=17.0°
sep=4.94"
| pa=17.0°
sep=4.94"
| pa=50.9°
sep=4.07"
|
16542-4139 A
Coord arcsec 2000 |
165411.52-413830.9 |
|
Mag |
6.59 |
|
Spectral class |
O9.5III (blue) |
|
PmRA |
0.00 |
|
PmDE |
-1.0 |
|
SAO |
227384 |
|
Tycho2 |
7876-02339-1 |
|
HD |
152247 |
|
DM |
CP-41 7732 |
|
Tycho2 |
7876-02339-1 |
|
Pflag |
|
|
RAmdeg |
253.54798870 |
|
DEmdeg |
-41.64193214 |
|
PmRA |
0.1 |
|
PmDE |
-1.3 |
|
E RAmdeg |
5 |
|
E DEmdeg |
6 |
|
E pmRA |
1.2 |
|
E pmDE |
1.2 |
|
EpRAm |
1991.22 |
|
EpDEm |
1990.85 |
|
Num |
8 |
|
Q RAmdeg |
0.8 |
|
Q DEmdeg |
1.3 |
|
Q pmRA |
0.8 |
|
Q pmDE |
1.2 |
|
BTmag |
7.367 |
|
E BTmag |
0.016 |
|
VTmag |
7.214 |
|
E VTmag |
0.012 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
253.54798833 |
|
DEdeg |
-41.64192917 |
|
EpRA 1990 |
1.69 |
|
EpDE 1990 |
1.52 |
|
E RAdeg |
4.9 |
|
E DEdeg |
5.8 |
|
Posflg |
|
|
Corr |
0.0 |
|
SAO |
227384 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0004 |
|
DE1950 |
|
|
PmDE1950 |
-0.011 |
|
Vmag |
9 |
|
SpType |
B2 |
|
Double code |
|
|
Source |
48 |
|
CatNum |
15489 |
|
DM |
CP-41 7732 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
152247 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
4.40993273 |
|
DE1950rad |
-0.72537893 |
|
PmRA2000 |
-0.0004 |
|
PmDE2000 |
-0.01 |
|
16542-4139 Ab
Coord arcsec 2000 |
165411.52-413830.9 |
|
Mag |
8.3 |
|
Calc delta mag |
1.4 |
|
Calc coord |
yes |
|
16542-4139 B
Coord arcsec 2000 |
165411.37-413828.7 |
|
Mag |
13.83 |
|
Calc delta mag |
6.93 |
|
Calc coord |
yes |
|
16542-4139 C
Coord arcsec 2000 |
165411.65-413826.2 |
|
Mag |
12.65 |
|
Calc delta mag |
5.75 |
|
Calc coord |
yes |
|