18189-1348 SNA 91 Aa,Ab (HD 168137)
18h 18m 56.19s -13° 48' 31.1" P.A. 212.00 sep 0.0 mag 8.30,8.60 Sp O8V dist. 427.35 pc (1394.02 l.y.)
Coord 2000 |
18189-1348 |
|
Discov num |
SNA 91 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
18 18 56.19 -13 48 31.1 |
|
Date first |
2009 |
|
Date last |
2016 |
|
Obs |
12 |
|
Pa first |
168 |
|
Pa last |
212.3 |
|
P.A. Now (θ) |
212.3° |
|
Sep first |
0.0 |
|
Sep last |
0.007 |
|
Sep. Now (ρ) |
0.007" |
|
Mag pri |
8.30 |
|
Mag sec |
8.60 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
O8V (blue) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
|
|
Pri motion dec |
+000 |
|
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.
18189-1348 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 168137 |
161316 |
18 18 56 -13 48 31 |
SNA 91 Aa,Ab |
2016 |
12 |
212 |
0.0 |
8.30 |
8.60 |
0.30 |
Y |
<=== |
Show |
|
161316 |
18 18 56 -13 48 31 |
HDS 2590 AB |
2016 |
3 |
353 |
2.1 |
9.05 |
12.90 |
3.85 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 168137 |
|
Constellation |
Serpens |
|
SAO |
161316 |
|
HIP |
89750 |
|
Tycho2 |
5689-01097-1 |
|
Gaia DR2 |
4146599682284818176 |
|
HD |
168137 |
|
BD |
BD-13 4932 |
|
Distance |
427.35 |
|
Distance ly |
1394.02 |
|
ORBITAL ELEMENTS
Period (P) | 1836d (5.03y) | ± 20 |
Periastron (T) | 53525d (2005.422y) | ± 14 |
Semi-major axis (a) | 7m | ± 3.9 |
Eccentricity (e) | 0.902 | ± 0.058 |
Inclination (i) | 105.2° | ± 4 |
Longitude of periastron (ω) | 246.7° | ± 9 |
Node (Ω) | 231.2° | ± 5 |
Notes | | |
Reference | LeB2017 | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
114.6 |
0.002 |
2001-01-01 |
217.4 |
0.006 |
2002-01-01 |
208.1 |
0.007 |
2003-01-01 |
198.9 |
0.006 |
2004-01-01 |
182.8 |
0.004 |
2005-01-01 |
118.3 |
0.002 |
2006-01-01 |
217.7 |
0.006 |
2007-01-01 |
208.3 |
0.007 |
2008-01-01 |
199.2 |
0.006 |
2009-01-01 |
183.4 |
0.004 |
2010-01-01 |
121.9 |
0.002 |
2011-01-01 |
218.1 |
0.005 |
2012-01-01 |
208.5 |
0.007 |
2013-01-01 |
199.5 |
0.006 |
2014-01-01 |
184.1 |
0.004 |
2015-01-01 |
125.4 |
0.002 |
2016-01-01 |
218.5 |
0.005 |
2017-01-01 |
208.7 |
0.007 |
2018-01-01 |
199.8 |
0.006 |
2019-01-01 |
184.7 |
0.004 |
2020-01-01 |
128.7 |
0.002 |
2021-01-01 |
218.8 |
0.005 |
2022-01-01 |
209.0 |
0.007 |
2023-01-01 |
200.0 |
0.006 |
2024-01-01 |
185.3 |
0.004 |
2025-01-01 |
131.9 |
0.002 |
2026-01-01 |
219.2 |
0.005 |
2027-01-01 |
209.2 |
0.007 |
2028-01-01 |
200.3 |
0.006 |
2029-01-01 |
185.9 |
0.004 |
2030-01-01 |
134.9 |
0.002 |
|
|
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 18189-1348 SNA 91 Aa,Ab (HD 168137) : NOTES
discov_num |
notes |
refcode |
SNA 91 |
Aa,Ab: The A component is an O7V+O8V 912d SB (Sana et al. 2012) that |
Sna2012 |
|
we marginally resove with PIONIER at 6mas separation. |
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) |
|
DISCOVERER
idgroup |
discov |
author |
1 |
HDS |
Hipparcos Double Star (from additional DD list) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18189-1348 |
SNA 91 |
Aa,Ab |
2013 |
1 |
156 |
0.0 |
8.30 |
8.60 |
O8V |
V K |
181856.19-134831.1 |
18189-1348 |
SNA 91 |
Aa,Ab |
2016 |
12 |
212 |
0.0 |
8.30 |
8.60 |
O8V |
NV K |
181856.19-134831.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18189-1348 SNA 91 Aa,Ab (HD 168137) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18189-1348 SNA 91 Aa,Ab (HD 168137) : MEASURES
No records found.
WDS 18189-1348 (HD 168137) : 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 18189-1348 (HD 168137) : ALADIN DSS IMAGE @ 18h 18m 56.19s -13° 48' 31.1"
WDS 18189-1348 SNA 91 Aa,Ab (HD 168137) : 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 |
|
18189-1348 |
HDS2590 |
AB |
353 |
2.1 |
|
Show |
|
18189-1348 |
SNA 91 |
Aa,Ab |
212 |
0.0 |
|
Show |
|
18190-1349 |
DBR 292 |
|
61 |
2.0 |
1 |
Show |
|
18189-1349 |
DCH 43 |
|
268 |
1.5 |
2 |
Show |
|
18189-1347 |
DCH 42 |
CD |
320 |
1.3 |
2 |
Show |
|
18189-1347 |
DCH 41 |
AB |
261 |
1.0 |
2 |
Show |
|
18188-1347 |
DCH 37 |
AB |
307 |
0.7 |
3 |
Show |
|
18188-1347 |
DCH 38 |
CD |
90 |
1.4 |
3 |
Show |
|
18188-1349 |
DCH 40 |
|
297 |
1.4 |
3 |
Show |
|
18188-1348 |
DCH 39 |
|
254 |
0.5 |
3 |
Show |
|
18187-1349 |
DCH 33 |
AB |
95 |
0.4 |
3 |
Show |
|
18187-1349 |
DCH 35 |
EF |
153 |
0.7 |
4 |
Show |
|
18187-1347 |
DCH 32 |
IJ |
7 |
0.9 |
4 |
Show |
|
18187-1347 |
DCH 31 |
GH |
253 |
1.2 |
4 |
Show |
|
18187-1346 |
DCH 27 |
|
120 |
0.8 |
4 |
Show |
|
18187-1347 |
DCH 30 |
EF |
136 |
0.7 |
4 |
Show |
|
18187-1347 |
DCH 29 |
CD |
185 |
1.1 |
5 |
Show |
|
18187-1349 |
DCH 34 |
CD |
273 |
1.2 |
5 |
Show |
|
18187-1347 |
DCH 28 |
AB |
225 |
0.8 |
5 |
Show |
|
18186-1347 |
DCH 24 |
AB |
30 |
0.5 |
5 |
Show |
|
18186-1348 |
DCH 26 |
AB |
306 |
0.2 |
5 |
Show |
|
18186-1348 |
SNA 88 |
AC |
5 |
3.7 |
5 |
Show |
|
18186-1348 |
SNA 88 |
AD |
246 |
3.5 |
5 |
Show |
|
18186-1348 |
SNA 88 |
AE |
177 |
3.8 |
5 |
Show |
|
18186-1348 |
SNA 88 |
AF |
126 |
5.9 |
5 |
Show |
|
18186-1348 |
SNA 88 |
AG |
305 |
6.4 |
5 |
Show |
|
18186-1346 |
DCH 25 |
EF |
295 |
1.1 |
5 |
Show |
|
18186-1346 |
DCH 23 |
CD |
322 |
0.8 |
5 |
Show |
|
18186-1347 |
DBR 291 |
CD |
99 |
3.1 |
5 |
Show |
|
18186-1348 |
SNA 87 |
Ha,Hb |
49 |
0.0 |
5 |
Show |
|
18186-1348 |
SNA 87 |
HI |
297 |
2.7 |
5 |
Show |
|
18186-1348 |
SNA 87 |
HJ |
139 |
3.4 |
5 |
Show |
|
18186-1348 |
SNA 87 |
HK |
68 |
5.8 |
5 |
Show |
|
18187-1345 |
SNA 89 |
AB |
344 |
5.1 |
6 |
Show |
|
18187-1345 |
SNA 89 |
AC |
249 |
5.1 |
6 |
Show |
|
18187-1345 |
SNA 89 |
AD |
206 |
5.5 |
6 |
Show |
|
18187-1345 |
SNA 89 |
AE |
241 |
6.2 |
6 |
Show |
|
18186-1346 |
DCH 22 |
AB |
346 |
0.6 |
6 |
Show |
|
18191-1344 |
DCH 44 |
|
324 |
0.6 |
6 |
Show |
|
18186-1345 |
DCH 21 |
|
299 |
0.1 |
6 |
Show |
|
18185-1345 |
DCH 19 |
|
231 |
0.7 |
7 |
Show |
|
18184-1344 |
DBR 290 |
|
84 |
2.6 |
8 |
Show |
|
18185-1344 |
SHN 229 |
|
-1 |
0.1 |
9 |
Show |
|
18187-1356 |
DCH 36 |
|
235 |
1.4 |
9 |
Show |
|
18186-1341 |
DCH 20 |
|
228 |
0.5 |
10 |
Show |
|
18182-1347 |
DCH 18 |
|
288 |
1.4 |
12 |
Show |
|
18211-1339 |
RST9006 |
|
246 |
1.4 |
30 |
Show |
|
18179-1415 |
BRT2748 |
|
82 |
2.8 |
31 |
Show |
|
18168-1414 |
J 2204 |
AB |
190 |
5.9 |
40 |
Show |
|
18168-1414 |
J 2204 |
AC |
351 |
14.8 |
40 |
Show |
|
18168-1414 |
J 2204 |
BC |
356 |
20.4 |
40 |
|
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WDS 18189-1348 : COMPONENTS
|
A |
Ab |
Ab |
pa=211.5°
sep=0.01"
| |
B |
pa=352.9°
sep=2.10"
| pa=353.0°
sep=2.10"
|
18189-1348 A
Coord arcsec 2000 |
181856.19-134831.1 |
|
Mag |
9.05 |
|
Spectral class |
O8V (blue) |
|
PmRA |
3.00 |
|
PmDE |
0.0 |
|
SAO |
161316 |
|
Tycho2 |
5689-01097-1 |
|
HD |
168137 |
|
BD |
BD-13 4932 |
|
Tycho2 |
5689-01097-1 |
|
Pflag |
|
|
RAmdeg |
274.73412179 |
|
DEmdeg |
-13.80863404 |
|
PmRA |
2.8 |
|
PmDE |
-0.1 |
|
E RAmdeg |
11 |
|
E DEmdeg |
15 |
|
E pmRA |
1.8 |
|
E pmDE |
1.7 |
|
EpRAm |
1991.42 |
|
EpDEm |
1990.87 |
|
Num |
3 |
|
Q RAmdeg |
0.6 |
|
Q DEmdeg |
0.9 |
|
Q pmRA |
0.7 |
|
Q pmDE |
0.9 |
|
BTmag |
9.394 |
|
E BTmag |
0.023 |
|
VTmag |
9.053 |
|
E VTmag |
0.021 |
|
Prox |
20 |
|
TYC |
T |
|
HIP |
89750 |
|
CCDM |
A |
|
RAdeg |
274.73411556 |
|
DEdeg |
-13.80863389 |
|
EpRA 1990 |
1.85 |
|
EpDE 1990 |
1.74 |
|
E RAdeg |
10.9 |
|
E DEdeg |
14.5 |
|
Posflg |
|
|
Corr |
-0.1 |
|
SAO |
161316 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0003 |
|
DE1950 |
|
|
PmDE1950 |
-0.003 |
|
Vmag |
9.1 |
|
SpType |
B |
|
Double code |
|
|
Source |
21 |
|
CatNum |
6666 |
|
DM |
BD-13 4932 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
168137 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
4.78263831 |
|
DE1950rad |
-0.24137712 |
|
PmRA2000 |
0.0005 |
|
PmDE2000 |
-0.001 |
|
18189-1348 Ab
Coord arcsec 2000 |
181856.19-134831.1 |
|
Mag |
8.6 |
|
Calc delta mag |
0.3 |
|
Calc coord |
yes |
|
18189-1348 B
Coord arcsec 2000 |
181856.17-134829.0 |
|
Mag |
12.9 |
|
PmRA |
-3.00 |
|
PmDE |
1.0 |
|
Calc delta mag |
4.6 |
|
Calc coord |
yes |
|