18360+1144 STT 357 (HD 171728)
18h 35m 57.08s +11° 43' 42.1" P.A. 68.00 sep 0.4 mag 8.08,8.87 Sp A7V dist. 223.21 pc (728.11 l.y.)
Coord 2000 |
18360+1144 |
|
Discov num |
STT 357 |
|
Comp |
|
|
Coord arcsec 2000 |
18 35 57.08 +11 43 42.1 |
|
Date first |
1843 |
|
Date last |
2019 |
|
Obs |
146 |
|
Pa first |
272 |
|
Pa last |
68.4 |
|
P.A. Now (θ) |
64.9° |
|
Sep first |
0.5 |
|
Sep last |
0.35 |
|
Sep. Now (ρ) |
0.362" |
|
Mag pri |
8.08 |
|
Mag sec |
8.87 |
|
delta mag (ΔM) |
0.79 |
|
Spectral class |
A7V (white) |
|
Pri motion ra |
+012 |
|
Sec motion ra |
+012 |
|
Pri motion dec |
-011 |
|
Sec motion dec |
-011 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 171728 |
|
Constellation |
Ophiuchus |
|
SAO |
103885 |
|
HIP |
91167 |
|
Tycho2 |
1032-01257-1 |
|
HD |
171728 |
|
ADS |
11484 |
|
BD |
BD+11 3518 |
|
Distance |
223.21 |
|
Distance ly |
728.11 |
|
ORBITAL ELEMENTS
Period (P) | 411.1y | |
Periastron (T) | 1968.324y | |
Semi-major axis (a) | 0.511a | |
Eccentricity (e) | 0.317 | |
Inclination (i) | 124.8° | |
Longitude of periastron (ω) | 321.9° | |
Node (Ω) | 93.8° | |
Notes | n | |
Reference | Sca2011a | |
Equinox | 2000 | |
Last observation | 2009 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
85.4 |
0.377 |
2001 |
84.5 |
0.378 |
2002 |
83.6 |
0.378 |
2003 |
82.8 |
0.378 |
2004 |
81.9 |
0.378 |
2005 |
81.0 |
0.378 |
2006 |
80.2 |
0.378 |
2007 |
79.3 |
0.377 |
2008 |
78.4 |
0.377 |
2009 |
77.6 |
0.376 |
2010 |
76.7 |
0.376 |
2011 |
75.8 |
0.375 |
2012 |
74.9 |
0.374 |
2013 |
74.0 |
0.373 |
2014 |
73.1 |
0.373 |
2015 |
72.2 |
0.372 |
2016 |
71.3 |
0.370 |
2017 |
70.4 |
0.369 |
2018 |
69.5 |
0.368 |
2019 |
68.6 |
0.367 |
2020 |
67.7 |
0.366 |
2021 |
66.8 |
0.364 |
2022 |
65.8 |
0.363 |
2023 |
64.9 |
0.362 |
2024 |
63.9 |
0.360 |
2025 |
63.0 |
0.359 |
2026 |
62.0 |
0.357 |
2027 |
61.0 |
0.356 |
2028 |
60.1 |
0.354 |
2029 |
59.1 |
0.353 |
2030 |
58.1 |
0.351 |
|
|
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 18360+1144 STT 357 (HD 171728) : NOTES
discov_num |
notes |
refcode |
STT 357 |
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic |
|
|
masses of 8.78 +/- 7.73, 4.26, and 1.66 Msun, respectively. |
Mlk2012 |
REFERENCES
refcode |
metd |
author |
reference |
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
Sca2011a |
S j |
Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., & Sala, M. |
2011AN....332..508S |
Sca2011a |
+orb |
AN 332, 508, 2011 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
STT |
Struve, O. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18360+1144 |
STT 357 |
|
2007 |
132 |
78 |
0.4 |
8.08 |
8.87 |
A7V |
NOD |
183557.08+114342.1 |
18360+1144 |
STT 357 |
|
2010 |
139 |
74 |
0.4 |
8.08 |
8.87 |
A7V |
NOD |
183557.08+114342.1 |
18360+1144 |
STT 357 |
|
2011 |
144 |
76 |
0.4 |
8.08 |
8.87 |
A7V |
NO |
183557.08+114342.1 |
18360+1144 |
STT 357 |
|
2017 |
144 |
86 |
0.5 |
8.08 |
8.87 |
A7V |
NO |
183557.08+114342.1 |
18360+1144 |
STT 357 |
|
2019 |
145 |
68 |
0.4 |
8.08 |
8.87 |
A7V |
NO |
183557.08+114342.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18360+1144 STT 357 (HD 171728) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18360+1144 STT 357 (HD 171728) : MEASURES
No records found.
WDS 18360+1144 (HD 171728) : 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 18360+1144 (HD 171728) : ALADIN DSS IMAGE @ 18h 35m 57.08s +11° 43' 42.1"
WDS 18360+1144 STT 357 (HD 171728) : 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 |
|
18360+1144 |
STT 357 |
|
68 |
0.4 |
1 |
Show |
|
18368+1151 |
L 39 |
|
218 |
2.2 |
15 |
Show |
|
18369+1129 |
BPM 792 |
|
358 |
86.9 |
21 |
Show |
|
18346+1134 |
BPM 790 |
|
218 |
40.1 |
22 |
Show |
|
18350+1127 |
STF2341 |
|
265 |
15.4 |
23 |
Show |
|
18378+1127 |
BLL 33 |
|
265 |
131.1 |
33 |
Show |
|
18342+1123 |
HJ 1329 |
|
313 |
15.8 |
34 |
Show |
|
18344+1116 |
KRU 7 |
|
50 |
2.7 |
37 |
Show |
|
18340+1219 |
J 1170 |
|
120 |
4.5 |
47 |
Show |
|
18337+1216 |
ADP 4 |
|
301 |
3.9 |
47 |
Show |
|
18328+1147 |
HU 245 |
|
53 |
2.1 |
47 |
Show |
|
18380+1107 |
BPM 795 |
|
38 |
108.9 |
48 |
Show |
|
18339+1220 |
J 1197 |
|
180 |
2.3 |
49 |
Show |
|
18385+1107 |
BPM 798 |
|
|
43.0 |
53 |
Show |
|
18396+1146 |
SLE 229 |
BC |
195 |
22.4 |
54 |
Show |
|
18396+1146 |
AG 363 |
AB |
197 |
15.6 |
54 |
Show |
|
18396+1146 |
SLE 229 |
AD |
146 |
59.8 |
54 |
Show |
|
18396+1146 |
SLE 229 |
AC |
196 |
37.9 |
54 |
Show |
|
18381+1229 |
BPM 797 |
|
13 |
97.1 |
56 |
Show |
|
18329+1111 |
DAM 639 |
|
256 |
7.0 |
57 |
Show |
|
18321+1152 |
BRT1301 |
|
42 |
3.5 |
59 |
Show |
|
18400+1146 |
TDT 984 |
|
137 |
1.4 |
60 |
Show |
|
18403+1141 |
BRT1306 |
|
348 |
3.6 |
64 |
Show |
|
18395+1225 |
BPM 800 |
|
50 |
92.4 |
67 |
Show |
|
18316+1204 |
BPM 787 |
|
159 |
26.9 |
67 |
Show |
|
18316+1203 |
HU 244 |
|
254 |
1.3 |
67 |
Show |
|
18328+1054 |
HEI 561 |
|
190 |
2.4 |
69 |
Show |
|
18381+1245 |
BPM 796 |
|
221 |
65.0 |
70 |
Show |
|
18340+1250 |
J 1832 |
|
353 |
6.7 |
72 |
Show |
|
18310+1125 |
J 2131 |
|
9 |
8.1 |
76 |
Show |
|
18408+1214 |
HJ 1334 |
|
91 |
11.1 |
78 |
Show |
|
18412+1128 |
BPM 802 |
|
36 |
61.1 |
79 |
Show |
|
18413+1146 |
GRV 236 |
|
353 |
57.4 |
80 |
Show |
|
18414+1133 |
BPM 803 |
|
341 |
84.4 |
81 |
Show |
|
18390+1035 |
J 2140 |
|
184 |
6.4 |
82 |
Show |
|
18367+1019 |
L 9002 |
|
275 |
4.9 |
86 |
Show |
|
18384+1027 |
BRT1305 |
|
135 |
4.9 |
86 |
Show |
|
18390+1027 |
J 1266 |
|
29 |
2.0 |
86 |
Show |
|
18364+1017 |
PRZ 14 |
AB |
300 |
11.0 |
87 |
Show |
|
18364+1017 |
PRZ 14 |
AC |
101 |
43.9 |
87 |
Show |
|
18301+1127 |
BPM 784 |
|
290 |
32.8 |
88 |
Show |
|
18370+1016 |
HU 247 |
|
359 |
0.4 |
89 |
Show |
|
18298+1201 |
BPM 781 |
|
276 |
50.9 |
93 |
Show |
|
18379+1015 |
DAM 286 |
|
312 |
3.4 |
94 |
Show |
|
18333+1309 |
OSO 100 |
|
132 |
23.0 |
95 |
Show |
|
18296+1126 |
BRT1300 |
|
262 |
4.3 |
96 |
Show |
|
18365+1009 |
BRT1304 |
|
235 |
5.5 |
96 |
Show |
|
18299+1222 |
BPM 782 |
|
242 |
52.0 |
97 |
Show |
|
18326+1019 |
BRT1303 |
|
295 |
7.4 |
98 |
Show |
|
18355+1005 |
BRT1945 |
AB |
358 |
5.8 |
99 |
Show |
|
18355+1005 |
BRT1945 |
AC |
108 |
8.3 |
99 |
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WDS 18360+1144 : COMPONENTS
18360+1144 A
Componente originario normalizzato |
AB |
|
Name |
HD 171728 |
|
Coord arcsec 2000 |
183557.08+114342.1 |
|
Mag |
8.08 |
|
Spectral class |
A7V (white) |
|
PmRA |
12.00 |
|
PmDE |
-11.0 |
|
SAO |
103885 |
|
HIP |
91167 |
|
Tycho2 |
1032-01257-1 |
|
HD |
171728 |
|
BD |
BD+11 3518 |
|
Tycho2 |
1032-01257-1 |
|
Pflag |
|
|
RAmdeg |
278.98786988 |
|
DEmdeg |
11.72836865 |
|
PmRA |
11.5 |
|
PmDE |
-10.9 |
|
E RAmdeg |
4 |
|
E DEmdeg |
5 |
|
E pmRA |
1.3 |
|
E pmDE |
1.3 |
|
EpRAm |
1991.57 |
|
EpDEm |
1991.45 |
|
Num |
11 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
1.2 |
|
Q pmRA |
1.0 |
|
Q pmDE |
1.2 |
|
BTmag |
7.963 |
|
E BTmag |
0.016 |
|
VTmag |
7.689 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
91167 |
|
CCDM |
AB |
|
RAdeg |
278.98784333 |
|
DEdeg |
11.72839361 |
|
EpRA 1990 |
1.80 |
|
EpDE 1990 |
1.77 |
|
E RAdeg |
4.2 |
|
E DEdeg |
5.1 |
|
Posflg |
P |
|
Corr |
0.0 |
|
SAO |
103885 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0 |
|
DE1950 |
|
|
PmDE1950 |
-0.011 |
|
Vmag |
7.7 |
|
SpType |
A2 |
|
Double code |
|
|
Source |
29 |
|
CatNum |
6696 |
|
DM |
BD+11 3518 |
|
DMcomp |
|
|
BDsup |
|
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HD |
171728 |
|
M HD |
0 |
|
GC |
|
|
RA1950rad |
4.85906459 |
|
DE1950rad |
0.20396534 |
|
PmRA2000 |
0.0001 |
|
PmDE2000 |
-0.012 |
|
Catalog |
H |
|
HIP |
91167 |
|
Proxy |
H |
|
RAhms |
18 35 57.07 |
|
DEdms |
+11 43 42.2 |
|
Vmag |
7.64 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
278.988 |
|
DEdeg |
11.7284 |
|
AstroRef |
A |
|
Plx |
5.59 |
|
CCDM |
18360+1144 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
93 |
|
Rho |
0.357 |
|
HD |
171728 |
|
BD |
BD+11 3518 |
|
CD |
|
|
CP |
|
|
Dm number |
+11 3518 |
|
VIred |
0.25 |
|
SpType |
A2 |
|
R SpType |
|
|
Coord arcsec 2000 |
183557.07+114342.2 |
|
HIP |
91167 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
4.8692554544 |
|
DErad |
0.2046991703 |
|
Plx |
4.48 |
|
PmRA |
10.67 |
|
PmDE |
-9.76 |
|
E RArad |
0.86 |
|
E DErad |
0.56 |
|
E Plx |
1.04 |
|
E pmRA |
1.11 |
|
E pmDE |
0.79 |
|
Hpmag |
7.7168 |
|
E Hpmag |
0.0013 |
|
SHp |
0.01 |
|
VA |
0 |
|
BV |
0.262 |
|
E BV |
0.011 |
|
VI |
0.29 |
|
Ccdm |
18360+1144 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.98 |
|
DDEs |
-18.5 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
8.1 |
|
Sp |
A2 |
|
PmNote |
* |
|
PmRA |
2 |
|
PmDE |
-14 |
|
Dm number |
+11 3518 |
|
Cat1 |
BD |
|
Name2 |
+11 2081 |
|
Cat2 |
AGK2/3 |
|
HD |
171728 |
|
M HD |
|
|
ADS BDS |
A11484 |
|
M ADS BDS |
|
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N IDS |
|
|
IDS |
18313N1139A |
|
HIC |
91167 |
|
18360+1144 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
183557.10+114342.2 |
|
Mag |
8.87 |
|
PmRA |
12.00 |
|
PmDE |
-11.0 |
|
Calc delta mag |
0.79 |
|
Calc coord |
yes |
|
Ccdm |
18360+1144 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
* |
|
Note2 |
|
|
Discov num |
STT 357 |
|
DRAs |
|
|
DDEs |
|
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R dRAs |
|
|
Year |
1845 |
|
Theta |
|
|
Rho |
|
|
Obs |
99 |
|
Vmag |
8.2 |
|
Sp |
|
|
PmNote |
|
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PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
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|
Cat2 |
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|
HD |
|
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M HD |
|
|
ADS BDS |
A11484 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18313N1139B |
|
HIC |
91167 |
|