16542-4139 SNA 53 AB
16h 54m 11.52s -41° 38' 30.9" P.A. 313.00 sep 3.2 mag 6.59,13.83 Sp O9.5III
Coord 2000
16542-4139
Discov num
SNA 53
Comp
AB
Coord arcsec 2000
16 54 11.52 -41 38 30.9
Date first
2012
Date last
2012
Obs
1
Pa first
313
Pa last
313.4
P.A. Now (θ)
313.4°
Sep first
3.2
Sep last
3.15
Sep. Now (ρ)
3.15"
Mag pri
6.59
Mag sec
13.83
delta mag (ΔM)
7.24
Spectral class
O9.5III (blue)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
N
K
(See Notes, 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
Nature of this double is uncertain.
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
DM
CP-41 7732
WDS 16542-4139 SNA 53 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
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
AB
2012
1
313
3.2
6.59
13.83
O9.5III
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 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 16542-4139 SNA 53 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"
DSS color
DSS blue
2MASS
AllWISE
GALEX
SDSS9
XMM
PanSTARRS
WDS 16542-4139 SNA 53 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