18396+4056 COU 1607 (HD 172671)
18h 39m 33.03s +40° 56' 06.2" P.A. 136.00 sep 0.0 mag 6.47,7.99 Sp B9V dist. 271.74 pc (886.42 l.y.)
Coord 2000 |
18396+4056 |
|
Discov num |
COU1607 |
|
Comp |
|
|
Coord arcsec 2000 |
18 39 33.03 +40 56 06.2 |
|
Date first |
1978 |
|
Date last |
2014 |
|
Obs |
38 |
|
Pa first |
96 |
|
Pa last |
136.2 |
|
P.A. Now (θ) |
136.2° |
|
Sep first |
0.1 |
|
Sep last |
0.014 |
|
Sep. Now (ρ) |
0.014" |
|
Mag pri |
6.47 |
|
Mag sec |
7.99 |
|
delta mag (ΔM) |
1.52 |
|
Spectral class |
B9V (blue-white) |
|
Pri motion ra |
+015 |
|
Sec motion ra |
|
|
Pri motion dec |
+003 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 172671 |
|
Constellation |
Lyra |
|
SAO |
47676 |
|
HIP |
91491 |
|
Tycho2 |
3109-00722-1 |
|
Gaia DR2 |
2110533322798008192 |
|
HD |
172671 |
|
HR |
7017 |
|
GC |
25541 |
|
BD |
BD+40 3446 |
|
Distance |
271.74 |
|
Distance ly |
886.42 |
|
ORBITAL ELEMENTS
Period (P) | 69.4y | ± 12.5 |
Periastron (T) | 2021.1y | ± 2.5 |
Semi-major axis (a) | 0.112a | ± 0.012 |
Eccentricity (e) | 0.602 | ± 0.161 |
Inclination (i) | 87.1° | ± 0.7 |
Longitude of periastron (ω) | 184.6° | ± 15.3 |
Node (Ω) | 114.9° | ± 0.6 |
Notes | | |
Reference | BAE2021 | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
116.5 |
0.140 |
2001 |
116.6 |
0.134 |
2002 |
116.8 |
0.128 |
2003 |
116.9 |
0.122 |
2004 |
117.1 |
0.115 |
2005 |
117.3 |
0.108 |
2006 |
117.6 |
0.100 |
2007 |
117.9 |
0.092 |
2008 |
118.2 |
0.083 |
2009 |
118.6 |
0.074 |
2010 |
119.2 |
0.064 |
2011 |
119.9 |
0.054 |
2012 |
121.1 |
0.043 |
2013 |
122.9 |
0.032 |
2014 |
126.8 |
0.021 |
2015 |
139.9 |
0.010 |
2016 |
247.4 |
0.005 |
2017 |
283.1 |
0.016 |
2018 |
289.3 |
0.027 |
2019 |
292.0 |
0.036 |
2020 |
293.7 |
0.043 |
2021 |
295.0 |
0.045 |
2022 |
296.4 |
0.041 |
2023 |
298.4 |
0.032 |
2024 |
302.3 |
0.021 |
2025 |
317.7 |
0.008 |
2026 |
82.4 |
0.007 |
2027 |
103.2 |
0.019 |
2028 |
107.5 |
0.032 |
2029 |
109.4 |
0.044 |
2030 |
110.5 |
0.055 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18396+4056 COU 1607 (HD 172671) : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
BAE2021 |
orb j |
Baidin, A.E. & Krechet, V.G. |
2021AstBu..76...84B |
BAE2021 |
|
Astrophys. Bull. 76, 84, 2021 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
COU |
Couteau, P. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18396+4056 |
COU1607 |
|
1995 |
36 |
116 |
0.2 |
6.47 |
7.99 |
B9V |
D |
183933.03+405606.2 |
18396+4056 |
COU1607 |
|
2014 |
38 |
136 |
0.0 |
6.47 |
7.99 |
B9V |
|
183933.03+405606.2 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18396+4056 COU 1607 (HD 172671) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18396+4056 COU 1607 (HD 172671) : MEASURES
No records found.
WDS 18396+4056 (HD 172671) : 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 18396+4056 (HD 172671) : ALADIN DSS IMAGE @ 18h 39m 33.03s +40° 56' 06.2"
WDS 18396+4056 COU 1607 (HD 172671) : 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 |
|
18396+4056 |
COU1607 |
|
136 |
0.0 |
|
Show |
|
18401+4100 |
SLE 93 |
|
68 |
11.5 |
7 |
Show |
|
18389+4042 |
A 586 |
|
203 |
2.2 |
16 |
Show |
|
18390+4113 |
BRT1919 |
|
327 |
3.8 |
18 |
Show |
|
18413+4102 |
SLE 94 |
|
103 |
15.9 |
21 |
Show |
|
18397+4035 |
AG 225 |
AB |
354 |
6.6 |
22 |
Show |
|
18397+4035 |
AG 225 |
AC |
236 |
12.6 |
22 |
Show |
|
18397+4035 |
FYM 35 |
AD |
276 |
29.8 |
22 |
Show |
|
18404+4028 |
SLE 92 |
|
99 |
15.9 |
31 |
Show |
|
18362+4117 |
STF2351 |
|
160 |
5.0 |
44 |
Show |
|
18379+4014 |
ES 1655 |
|
28 |
2.0 |
47 |
Show |
|
18352+4135 |
RAO 83 |
Ba,Bb |
263 |
0.1 |
53 |
Show |
|
18349+4053 |
J 764 |
|
201 |
2.8 |
53 |
Show |
|
18380+4151 |
UC 3630 |
|
118 |
11.9 |
59 |
Show |
|
18348+4036 |
TDT 942 |
|
185 |
2.0 |
59 |
Show |
|
18365+4008 |
SLE 95 |
|
112 |
10.9 |
60 |
Show |
|
18436+4020 |
SLE 122 |
|
151 |
17.9 |
60 |
Show |
|
18418+4001 |
LSC 83 |
|
266 |
0.1 |
62 |
Show |
|
18397+3955 |
TDT 981 |
|
129 |
0.5 |
62 |
Show |
|
18370+4001 |
WSP 153 |
AB |
287 |
2.8 |
62 |
Show |
|
18352+4135 |
TOK 322 |
AB |
116 |
621.2 |
63 |
Show |
|
18450+4051 |
COU1792 |
|
347 |
1.1 |
63 |
Show |
|
18342+4039 |
ES 1654 |
|
256 |
3.3 |
63 |
Show |
|
18340+4121 |
ARY 14 |
AB |
293 |
38.5 |
68 |
Show |
|
18340+4121 |
ARY 14 |
AC |
356 |
119.1 |
68 |
Show |
|
18409+4204 |
SLW1220 |
|
113 |
17.4 |
70 |
Show |
|
18462+4118 |
ES 1656 |
|
252 |
5.2 |
79 |
Show |
|
18466+4042 |
HDS2663 |
|
65 |
0.2 |
82 |
Show |
|
18381+3935 |
BU 50 |
CD |
165 |
6.5 |
82 |
Show |
|
18381+3935 |
BU 50 |
AB |
3 |
22.2 |
83 |
Show |
|
18381+3935 |
BU 50 |
AC |
328 |
74.3 |
83 |
Show |
|
18381+3935 |
BU 50 |
AD |
327 |
68.1 |
83 |
Show |
|
18346+4158 |
UC 3615 |
|
181 |
49.6 |
84 |
Show |
|
18453+4005 |
ROE 50 |
AB |
282 |
4.7 |
84 |
Show |
|
18453+4005 |
ROE 50 |
AC |
120 |
26.2 |
84 |
Show |
|
18453+4005 |
ROE 50 |
AD |
253 |
96.6 |
84 |
Show |
|
18453+4005 |
ROE 50 |
AE |
196 |
93.6 |
84 |
Show |
|
18453+4005 |
BKO 53 |
AG |
156 |
51.7 |
84 |
Show |
|
18453+4005 |
BKO 53 |
AH |
301 |
35.7 |
84 |
Show |
|
18453+4005 |
ROE 50 |
AF |
114 |
35.7 |
84 |
Show |
|
18453+4005 |
ROE 50 |
CF |
99 |
9.9 |
84 |
Show |
|
18332+4010 |
STT 356 |
AB |
302 |
28.3 |
86 |
Show |
|
18332+4010 |
STT 356 |
AC |
9 |
48.1 |
86 |
Show |
|
18332+4010 |
STT 356 |
BC |
45 |
45.6 |
86 |
Show |
|
18426+3937 |
HJ 1341 |
|
285 |
8.8 |
87 |
Show |
|
18466+4134 |
TOI2138 |
|
215 |
0.2 |
89 |
Show |
|
18319+4119 |
COU1605 |
|
310 |
1.0 |
90 |
Show |
|
18443+3940 |
STFA 37 |
BC |
172 |
210.9 |
94 |
Show |
|
18443+3940 |
STFA 37 |
BD |
171 |
212.5 |
94 |
Show |
|
18443+3940 |
STFA 37 |
BI |
137 |
151.3 |
94 |
Show |
|
18443+3940 |
STF2382 |
AB |
345 |
2.2 |
94 |
|
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WDS 18396+4056 : COMPONENTS
18396+4056 A
Componente originario normalizzato |
AB |
|
Name |
HD 172671 |
|
Coord arcsec 2000 |
183933.03+405606.2 |
|
Mag |
6.47 |
|
Spectral class |
B9V (blue-white) |
|
PmRA |
15.00 |
|
PmDE |
3.0 |
|
SAO |
47676 |
|
HIP |
91491 |
|
Tycho2 |
3109-00722-1 |
|
HD |
172671 |
|
HR |
7017 |
|
GC |
25541 |
|
BD |
BD+40 3446 |
|
Tycho2 |
3109-00722-1 |
|
Pflag |
|
|
RAmdeg |
279.88765657 |
|
DEmdeg |
40.93506258 |
|
PmRA |
14.6 |
|
PmDE |
0.1 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
1.0 |
|
E pmDE |
1.0 |
|
EpRAm |
1991.34 |
|
EpDEm |
1991.38 |
|
Num |
9 |
|
Q RAmdeg |
1.5 |
|
Q DEmdeg |
0.5 |
|
Q pmRA |
1.5 |
|
Q pmDE |
0.6 |
|
BTmag |
6.166 |
|
E BTmag |
0.014 |
|
VTmag |
6.221 |
|
E VTmag |
0.010 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
91491 |
|
CCDM |
AB |
|
RAdeg |
279.88761139 |
|
DEdeg |
40.93506222 |
|
EpRA 1990 |
1.58 |
|
EpDE 1990 |
1.61 |
|
E RAdeg |
3.6 |
|
E DEdeg |
3.5 |
|
Posflg |
P |
|
Corr |
0.0 |
|
SAO |
47676 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.002 |
|
DE1950 |
|
|
PmDE1950 |
-0.002 |
|
Vmag |
6.1 |
|
SpType |
A0 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
25541 |
|
DM |
BD+40 3446 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
172671 |
|
M HD |
0 |
|
GC |
25541 |
|
RA1950rad |
4.87792684 |
|
DE1950rad |
0.71363246 |
|
PmRA2000 |
0.0024 |
|
PmDE2000 |
-0.002 |
|
Catalog |
H |
|
HIP |
91491 |
|
Proxy |
H |
|
RAhms |
18 39 33.03 |
|
DEdms |
+40 56 06.2 |
|
Vmag |
6.25 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
279.888 |
|
DEdeg |
40.9351 |
|
AstroRef |
* |
|
Plx |
4.04 |
|
CCDM |
18396+4056 |
|
N CCDM |
M |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
S |
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
118 |
|
Rho |
0.171 |
|
HD |
172671 |
|
BD |
BD+40 3446 |
|
CD |
|
|
CP |
|
|
Dm number |
+40 3446 |
|
VIred |
-0.03 |
|
SpType |
B9V |
|
R SpType |
|
|
Coord arcsec 2000 |
183933.03+405606.2 |
|
HIP |
91491 |
|
Sn |
55 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
4.8849602796 |
|
DErad |
0.7144516109 |
|
Plx |
3.68 |
|
PmRA |
13.92 |
|
PmDE |
-0.72 |
|
E RArad |
0.31 |
|
E DErad |
0.41 |
|
E Plx |
0.4 |
|
E pmRA |
0.35 |
|
E pmDE |
0.55 |
|
Hpmag |
6.226 |
|
E Hpmag |
0.0006 |
|
SHp |
0.006 |
|
VA |
0 |
|
BV |
-0.052 |
|
E BV |
0.008 |
|
VI |
-0.03 |
|
Ccdm |
18396+4056 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.97 |
|
DDEs |
5.8 |
|
R dRAs |
81 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
6.5 |
|
Sp |
A0 |
|
PmNote |
@ |
|
PmRA |
15 |
|
PmDE |
-9 |
|
Dm number |
+40 3446 |
|
Cat1 |
BD |
|
Name2 |
+40 1719 |
|
Cat2 |
AGK2/3 |
|
HD |
172671 |
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18363N4051A |
|
HIC |
91491 |
|
18396+4056 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
183933.03+405606.2 |
|
Mag |
7.99 |
|
Calc delta mag |
1.52 |
|
Calc coord |
yes |
|
Ccdm |
18396+4056 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
COU1607 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1978 |
|
Theta |
115 |
|
Rho |
0.2 |
|
Obs |
23 |
|
Vmag |
6.9 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18363N4051B |
|
HIC |
91491 |
|