18465-0058 MCA 53 Aa,Ab
18h 46m 28.58s -00° 57' 41.9" P.A. 95.00 sep 0.0 mag 5.88,6.80 Sp A2V dist. 111.86 pc (364.89 l.y.)
Coord 2000 |
18465-0058 |
|
Discov num |
MCA 53 |
|
Comp |
Aa,Ab |
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Coord arcsec 2000 |
18 46 28.58 -00 57 41.9 |
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Date first |
1980 |
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Date last |
2014 |
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Obs |
8 |
|
Pa first |
8 |
|
Pa last |
95.3 |
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P.A. Now (θ) |
95.3° |
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Sep first |
0.1 |
|
Sep last |
0.027 |
|
Sep. Now (ρ) |
0.027" |
|
Mag pri |
5.88 |
|
Mag sec |
6.80 |
|
delta mag (ΔM) |
0.92 |
|
Spectral class |
A2V (white) |
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Pri motion ra |
+023 |
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Sec motion ra |
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Pri motion dec |
-023 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
18465-0058 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
142606 |
18 46 29 -00 57 42 |
MCA 53 Aa,Ab |
2014 |
8 |
95 |
0.0 |
5.88 |
6.80 |
0.92 |
Y |
<=== |
Show |
5 Aql |
142606 |
18 46 29 -00 57 42 |
STF 2379 AB |
2019 |
118 |
121 |
12.5 |
5.88 |
7.02 |
1.14 |
|
|
Show |
|
142606 |
18 46 29 -00 57 42 |
STF 2379 AC |
2017 |
16 |
155 |
21.8 |
5.88 |
11.30 |
5.42 |
|
|
Show |
|
|
18 46 29 -00 57 48 |
STF 2379 BC |
2017 |
14 |
172 |
13.4 |
7.02 |
11.30 |
4.28 |
|
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Aquila |
|
SAO |
142606 |
|
HIP |
92117 |
|
Tycho2 |
5114-02267-1 |
|
HD |
173654 |
|
HR |
7059 |
|
GC |
25713 |
|
ADS |
11667 |
|
BD |
BD-01 3559 |
|
Flamsteed |
5 Aquilae |
|
Flamsteed name |
5 Aql |
|
Distance |
111.86 |
|
Distance ly |
364.89 |
|
ORBITAL ELEMENTS
Period (P) | 41.28y | |
Periastron (T) | 2012.5y | |
Semi-major axis (a) | 0.103a | |
Eccentricity (e) | 0.666 | |
Inclination (i) | 127.3° | |
Longitude of periastron (ω) | 358° | |
Node (Ω) | 164.8° | |
Notes | n | |
Reference | Doc2017f | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
333.2 |
0.147 |
2001 |
331.2 |
0.140 |
2002 |
329.0 |
0.133 |
2003 |
326.4 |
0.124 |
2004 |
323.5 |
0.114 |
2005 |
319.9 |
0.103 |
2006 |
315.5 |
0.091 |
2007 |
309.7 |
0.078 |
2008 |
301.4 |
0.064 |
2009 |
288.4 |
0.050 |
2010 |
265.6 |
0.037 |
2011 |
226.9 |
0.031 |
2012 |
184.2 |
0.033 |
2013 |
148.2 |
0.034 |
2014 |
108.2 |
0.032 |
2015 |
70.5 |
0.037 |
2016 |
46.7 |
0.048 |
2017 |
32.8 |
0.062 |
2018 |
23.9 |
0.076 |
2019 |
17.6 |
0.088 |
2020 |
12.9 |
0.100 |
2021 |
9.2 |
0.111 |
2022 |
6.1 |
0.121 |
2023 |
3.4 |
0.130 |
2024 |
1.1 |
0.138 |
2025 |
359.0 |
0.145 |
2026 |
357.1 |
0.151 |
2027 |
355.3 |
0.156 |
2028 |
353.7 |
0.161 |
2029 |
352.1 |
0.164 |
2030 |
350.6 |
0.167 |
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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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