18596+1504 ENG 65 AB (Deneb el okab)
18h 59m 37.39s +15° 04' 06.5" P.A. 184.00 sep 122.0 mag 4.13,10.56 Sp K1-III dist. 47.51 pc (154.98 l.y.)
Coord 2000 |
18596+1504 |
|
Discov num |
ENG 65 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 59 37.39 +15 04 06.5 |
|
Date first |
1887 |
|
Date last |
2014 |
|
Obs |
16 |
|
Pa first |
187 |
|
Pa last |
183.8 |
|
P.A. Now (θ) |
183.8° |
|
Sep first |
132.4 |
|
Sep last |
122.003 |
|
Sep. Now (ρ) |
122.003" |
|
Mag pri |
4.13 |
|
Mag sec |
10.56 |
|
delta mag (ΔM) |
6.43 |
|
Spectral class |
K1-III (yellow-orange) |
|
Pri motion ra |
-051 |
|
Sec motion ra |
+002 |
|
Pri motion dec |
-069 |
|
Sec motion dec |
+002 |
|
Notes |
N
S
(See Notes, Parallax indidates non-physical) |
|
rPM=1.033
This double is not physical.
18596+1504 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
Deneb el okab |
104318 |
18 59 37 +15 04 06 |
ENG 65 AB |
2014 |
16 |
184 |
122.0 |
4.13 |
10.56 |
6.43 |
Y |
<=== |
Show |
|
104318 |
18 59 37 +15 04 06 |
ENG 65 AC |
2014 |
12 |
159 |
142.9 |
4.13 |
11.25 |
7.12 |
|
|
Show |
|
|
18 59 37 +15 02 02 |
ENG 65 BC |
2015 |
17 |
102 |
59.8 |
10.56 |
11.25 |
0.69 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Common name |
Deneb el okab |
|
Constellation |
Aquila |
|
SAO |
104318 |
|
HIP |
93244 |
|
Tycho2 |
1585-02531-1 |
|
Gaia DR2 |
4506929502664775680 |
|
HD |
176411 |
|
HR |
7176 |
|
GC |
26091 |
|
BD |
BD+14 3736 |
|
Bayer |
Epsilon Aquilae |
|
Bayer name |
Eps Aql |
|
Flamsteed |
13 Aquilae |
|
Flamsteed name |
13 Aql |
|
FK5 |
712 |
|
Distance |
47.51 |
|
Distance ly |
154.98 |
|
Bayer greek |
ε Aql |
|
Other names |
Deneb el Okab Borealis |
|
ORBITAL ELEMENTS
Period (P) | 1270.6d (3.48y) | |
Periastron (T) | 41718.5d (1973.097y) | |
Semi-major axis (a) | 12.8m | ± 0.44 |
Eccentricity (e) | 0.27 | |
Inclination (i) | 87.5° | ± 6.6 |
Longitude of periastron (ω) | 82° | |
Node (Ω) | 58.7° | ± 3.9 |
Notes | n | |
Reference | Jnc2005 | |
Equinox | | |
Last observation | 1992 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
56.4 |
0.010 |
2001-01-01 |
214.5 |
0.001 |
2002-01-01 |
240.6 |
0.012 |
2003-01-01 |
47.9 |
0.004 |
2004-01-01 |
59.3 |
0.011 |
2005-01-01 |
238.4 |
0.012 |
2006-01-01 |
246.8 |
0.005 |
2007-01-01 |
56.7 |
0.011 |
2008-01-01 |
228.3 |
0.002 |
2009-01-01 |
240.9 |
0.011 |
2010-01-01 |
49.9 |
0.004 |
2011-01-01 |
59.6 |
0.010 |
2012-01-01 |
238.7 |
0.012 |
2013-01-01 |
248.4 |
0.004 |
2014-01-01 |
56.9 |
0.011 |
2015-01-01 |
232.2 |
0.003 |
2016-01-01 |
241.1 |
0.011 |
2017-01-01 |
51.3 |
0.005 |
2018-01-01 |
59.9 |
0.009 |
2019-01-01 |
238.9 |
0.013 |
2020-01-01 |
250.5 |
0.003 |
2021-01-01 |
57.2 |
0.011 |
2022-01-01 |
234.1 |
0.005 |
2023-01-01 |
241.4 |
0.010 |
2024-01-01 |
52.3 |
0.006 |
2025-01-01 |
60.3 |
0.009 |
2026-01-01 |
239.0 |
0.013 |
2027-01-01 |
253.9 |
0.003 |
2028-01-01 |
57.4 |
0.012 |
2029-01-01 |
235.2 |
0.006 |
2030-01-01 |
241.7 |
0.010 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18596+1504 ENG 65 AB (Deneb el okab) : NOTES
discov_num |
notes |
refcode |
ENG 65 |
13 Aql = eps Aql. A is a spectroscopic binary. |
|
|
Spectral type K1IIICN0.5Ba0.2. |
|
eps Aql |
Hipparcos astrometric solution adopted some elements from the orbit of |
HIP1997d |
|
Griffin (1982). |
Grf1982c |
REFERENCES
refcode |
metd |
author |
reference |
Grf1982c |
orb - |
Griffin, R.F. |
1982Obs...102...82G |
Grf1982c |
|
Observatory 102, 82, 1982 |
|
HIP1997d |
orb - |
Hipparcos |
1997yCat.1239....0E |
HIP1997d |
|
Hipparcos Catalog, ESA SP-1200, 1997 |
|
HIP1997d |
|
(DMSA/O Orbital Solutions) |
|
Jnc2005 |
orb - |
Jancart, S., Jorrisen, A., Babusiaux, C., & Pourbaix, D. |
2005A&A...442..365J |
Jnc2005 |
|
A&A 442, 365, 2005 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
ENG |
changed from EN to ENG and that for Engelhardt from ENG to ENH. This has led to |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18596+1504 |
ENG 65 |
AB |
2000 |
11 |
184 |
124.0 |
4.13 |
10.56 |
|
N D |
185937.39+150406.5 |
18596+1504 |
ENG 65 |
AB |
2010 |
12 |
184 |
123.4 |
4.13 |
10.56 |
|
N D |
185937.39+150406.5 |
18596+1504 |
ENG 65 |
AB |
2012 |
15 |
185 |
123.4 |
4.13 |
10.56 |
K1-III |
N |
185937.39+150406.5 |
18596+1504 |
ENG 65 |
AB |
2014 |
16 |
184 |
122.0 |
4.13 |
10.56 |
K1-III |
N |
185937.39+150406.5 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18596+1504 ENG 65 AB (Deneb el okab) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18596+1504 ENG 65 AB (Deneb el okab) : MEASURES
No records found.
WDS 18596+1504 (Deneb el okab) : 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 18596+1504 (Deneb el okab) : ALADIN DSS IMAGE @ 18h 59m 37.39s +15° 04' 06.5"
WDS 18596+1504 ENG 65 AB (Deneb el okab) : 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 |
Deneb el okab |
18596+1504 |
ENG 65 |
AB |
184 |
122.0 |
|
Show |
Deneb el okab |
18596+1504 |
ENG 65 |
AC |
159 |
142.9 |
|
Show |
|
18596+1504 |
ENG 65 |
BC |
102 |
59.8 |
3 |
Show |
|
18595+1504 |
WRD 2 |
AB |
251 |
9.3 |
5 |
Show |
|
18595+1504 |
WRD 2 |
AC |
100 |
22.3 |
5 |
Show |
|
18599+1454 |
STF2428 |
AB |
287 |
6.9 |
11 |
Show |
|
18599+1454 |
WAL 100 |
AC |
14 |
62.2 |
11 |
Show |
|
18584+1459 |
BPM 913 |
|
18 |
115.5 |
18 |
Show |
|
18586+1514 |
BPM 915 |
|
20 |
105.2 |
19 |
Show |
|
19010+1507 |
BPM 925 |
|
201 |
108.5 |
20 |
Show |
|
18585+1523 |
OL 190 |
|
295 |
3.3 |
21 |
Show |
|
18585+1518 |
TDT1157 |
Aa,Ab |
232 |
0.4 |
22 |
Show |
|
18585+1518 |
AG 368 |
AB |
318 |
17.3 |
22 |
Show |
|
19005+1445 |
HEI 265 |
|
45 |
0.3 |
23 |
Show |
|
18577+1509 |
OL 180 |
|
47 |
2.2 |
29 |
Show |
|
18574+1517 |
BPM 905 |
|
37 |
112.1 |
34 |
Show |
|
19007+1431 |
BPM 923 |
|
184 |
107.3 |
37 |
Show |
|
18574+1445 |
KPP2586 |
|
286 |
23.4 |
38 |
Show |
|
18572+1450 |
HU 676 |
|
79 |
1.2 |
38 |
Show |
|
18585+1429 |
BPM 914 |
|
32 |
60.4 |
39 |
Show |
|
18590+1542 |
BPM 917 |
|
221 |
99.4 |
40 |
Show |
|
18568+1505 |
BPM 900 |
|
256 |
105.4 |
41 |
Show |
|
18595+1420 |
BPMA 74 |
|
49 |
165.5 |
45 |
Show |
|
18580+1543 |
BPM 910 |
|
205 |
62.8 |
46 |
Show |
|
19016+1429 |
BPM 927 |
|
274 |
114.8 |
46 |
Show |
|
19024+1535 |
BPM 932 |
|
70 |
89.7 |
51 |
Show |
|
19021+1426 |
HO 93 |
AB |
328 |
1.1 |
53 |
Show |
|
19021+1426 |
HO 93 |
AC |
210 |
39.9 |
53 |
Show |
|
18576+1420 |
BPM 906 |
AB |
153 |
90.0 |
53 |
Show |
|
18576+1420 |
BPM 907 |
BC |
218 |
108.7 |
54 |
Show |
|
19035+1500 |
BPM 943 |
|
274 |
48.8 |
56 |
Show |
|
18563+1435 |
BPM 896 |
|
31 |
99.8 |
57 |
Show |
|
18569+1546 |
L 42 |
|
35 |
1.8 |
58 |
Show |
|
19018+1554 |
BPM 928 |
|
306 |
103.8 |
59 |
Show |
|
18566+1545 |
BPM 898 |
|
20 |
61.1 |
61 |
Show |
|
19040+1514 |
KPP 728 |
|
170 |
6.4 |
65 |
Show |
|
19028+1417 |
BPM 936 |
|
156 |
95.6 |
66 |
Show |
|
19039+1527 |
BPM 946 |
|
311 |
71.5 |
66 |
Show |
|
19041+1447 |
STF2443 |
|
311 |
6.8 |
67 |
Show |
|
18551+1522 |
BPMA 68 |
|
245 |
229.1 |
68 |
Show |
|
18565+1555 |
J 1278 |
AB |
98 |
2.3 |
69 |
Show |
|
18565+1555 |
J 1278 |
AC |
106 |
26.2 |
69 |
Show |
|
19042+1529 |
J 1839 |
|
25 |
8.2 |
71 |
Show |
|
18597+1615 |
TOK 622 |
AB |
267 |
999.9 |
72 |
Show |
|
18597+1615 |
TOK 622 |
AC |
218 |
999.9 |
72 |
Show |
|
18597+1615 |
SOZ 25 |
AD |
208 |
18.4 |
72 |
Show |
|
19002+1353 |
BPM 921 |
|
33 |
116.8 |
72 |
Show |
|
19035+1549 |
BPM 944 |
|
315 |
74.5 |
73 |
Show |
|
18582+1614 |
RAO 403 |
|
168 |
0.4 |
73 |
Show |
|
18551+1537 |
BPM 887 |
|
40 |
68.2 |
74 |
Show |
|
18556+1413 |
BPM 889 |
|
300 |
117.0 |
78 |
|
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WDS 18596+1504 : COMPONENTS
|
A |
B |
B |
pa=184.4°
sep=124.77"
| |
C |
pa=160.0°
sep=142.33"
| pa=99.1°
sep=59.09"
|
18596+1504 A
Common name |
Deneb el okab |
|
Other names |
Deneb el Okab Borealis |
|
Coord arcsec 2000 |
185937.39+150406.5 |
|
Mag |
4.13 |
|
Spectral class |
K1 (yellow-orange) |
|
PmRA |
-51.00 |
|
PmDE |
-69.0 |
|
SAO |
104318 |
|
HIP |
93244 |
|
Tycho2 |
1585-02531-1 |
|
HD |
176411 |
|
HR |
7176 |
|
GC |
26091 |
|
BD |
BD+14 3736 |
|
Bayer |
Epsilon Aquilae |
|
Bayer name |
Eps Aql |
|
Flamsteed |
13 Aquilae |
|
Flamsteed name |
13 Aql |
|
FK5 |
712 |
|
Tycho2 |
1585-02531-1 |
|
Pflag |
|
|
RAmdeg |
284.90565846 |
|
DEmdeg |
15.06829720 |
|
PmRA |
-51.3 |
|
PmDE |
-74.1 |
|
E RAmdeg |
3 |
|
E DEmdeg |
4 |
|
E pmRA |
0.5 |
|
E pmDE |
0.5 |
|
EpRAm |
1990.94 |
|
EpDEm |
1990.35 |
|
Num |
24 |
|
Q RAmdeg |
1.3 |
|
Q DEmdeg |
1.2 |
|
Q pmRA |
1.4 |
|
Q pmDE |
1.2 |
|
BTmag |
5.383 |
|
E BTmag |
0.014 |
|
VTmag |
4.129 |
|
E VTmag |
0.009 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
93244 |
|
CCDM |
|
|
RAdeg |
284.90577944 |
|
DEdeg |
15.06846917 |
|
EpRA 1990 |
1.75 |
|
EpDE 1990 |
1.66 |
|
E RAdeg |
3.3 |
|
E DEdeg |
3.5 |
|
Posflg |
|
|
Corr |
0.0 |
|
SAO |
104318 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0036 |
|
DE1950 |
|
|
PmDE1950 |
-0.073 |
|
Vmag |
4.2 |
|
SpType |
K0 |
|
Double code |
|
|
Source |
74 |
|
CatNum |
712 |
|
DM |
BD+14 3736 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
176411 |
|
M HD |
0 |
|
GC |
26091 |
|
RA1950rad |
4.96263419 |
|
DE1950rad |
0.26178198 |
|
PmRA2000 |
-0.0035 |
|
PmDE2000 |
-0.074 |
|
Catalog |
H |
|
HIP |
93244 |
|
Proxy |
|
|
RAhms |
18 59 37.39 |
|
DEdms |
+15 04 06.5 |
|
Vmag |
4.02 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
284.906 |
|
DEdeg |
15.0685 |
|
AstroRef |
+ |
|
Plx |
21.22 |
|
CCDM |
18596+1503 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
1 |
|
MultFlag |
O |
|
Source |
|
|
Qual |
|
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
176411 |
|
BD |
BD+14 3736 |
|
CD |
|
|
CP |
|
|
Dm number |
+14 3736 |
|
VIred |
1 |
|
SpType |
K2III |
|
R SpType |
|
|
Coord arcsec 2000 |
185937.39+150406.5 |
|
HIP |
93244 |
|
Sn |
75 |
|
So |
4 |
|
Nc |
1 |
|
RArad |
4.9725440772 |
|
DErad |
0.2629945516 |
|
Plx |
21.05 |
|
PmRA |
-50.75 |
|
PmDE |
-72.36 |
|
E RArad |
0.63 |
|
E DErad |
0.48 |
|
E Plx |
0.7 |
|
E pmRA |
0.9 |
|
E pmDE |
0.61 |
|
Hpmag |
4.184 |
|
E Hpmag |
0.001 |
|
SHp |
0.006 |
|
VA |
0 |
|
BV |
1.082 |
|
E BV |
0.005 |
|
VI |
1 |
|
18596+1504 B
Coord arcsec 2000 |
185936.73+150202.1 |
|
Coord calc |
185936.73+150202.1 |
|
Mag |
10.56 |
|
PmRA |
2.00 |
|
PmDE |
2.0 |
|
Tycho2 |
1585-00218-1 |
|
Calc delta mag |
6.43 |
|
Tycho2 |
1585-00218-1 |
|
Pflag |
|
|
RAmdeg |
284.90306752 |
|
DEmdeg |
15.03394430 |
|
PmRA |
3.0 |
|
PmDE |
1.1 |
|
E RAmdeg |
26 |
|
E DEmdeg |
29 |
|
E pmRA |
1.5 |
|
E pmDE |
1.4 |
|
EpRAm |
1985.22 |
|
EpDEm |
1982.58 |
|
Num |
4 |
|
Q RAmdeg |
1.3 |
|
Q DEmdeg |
0.9 |
|
Q pmRA |
1.3 |
|
Q pmDE |
0.9 |
|
BTmag |
10.861 |
|
E BTmag |
0.056 |
|
VTmag |
10.561 |
|
E VTmag |
0.060 |
|
Prox |
598 |
|
TYC |
T |
|
HIP |
|
|
CCDM |
|
|
RAdeg |
284.90306472 |
|
DEdeg |
15.03394722 |
|
EpRA 1990 |
1.77 |
|
EpDE 1990 |
1.68 |
|
E RAdeg |
32.9 |
|
E DEdeg |
40.5 |
|
Posflg |
|
|
Corr |
-0.1 |
|
18596+1504 C
Coord arcsec 2000 |
185940.76+150152.8 |
|
Mag |
11.25 |
|
Spectral class |
III |
|
PmRA |
2.00 |
|
PmDE |
-12.0 |
|
Tycho2 |
1585-00149-1 |
|
Calc delta mag |
7.12 |
|
Calc coord |
yes |
|
Tycho2 |
1585-00149-1 |
|
Pflag |
|
|
RAmdeg |
284.91993658 |
|
DEmdeg |
15.03060116 |
|
PmRA |
6.4 |
|
PmDE |
-20.0 |
|
E RAmdeg |
78 |
|
E DEmdeg |
94 |
|
E pmRA |
2.8 |
|
E pmDE |
2.8 |
|
EpRAm |
1982.55 |
|
EpDEm |
1977.35 |
|
Num |
2 |
|
Q RAmdeg |
|
|
Q DEmdeg |
|
|
Q pmRA |
|
|
Q pmDE |
|
|
BTmag |
12.947 |
|
E BTmag |
0.358 |
|
VTmag |
11.253 |
|
E VTmag |
0.112 |
|
Prox |
598 |
|
TYC |
|
|
HIP |
|
|
CCDM |
|
|
RAdeg |
284.91992167 |
|
DEdeg |
15.03064722 |
|
EpRA 1990 |
1.79 |
|
EpDE 1990 |
1.69 |
|
E RAdeg |
82.2 |
|
E DEdeg |
101.8 |
|
Posflg |
|
|
Corr |
-0.1 |
|