19255+0307 BNU 6 Aa,Ab
19h 25m 29.90s +03° 06' 53.2" P.A. 130.00 sep 0.1 mag 3.40, Sp F3IV dist. 15.53 pc (50.66 l.y.)
Coord 2000 |
19255+0307 |
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Discov num |
BNU 6 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
19 25 29.90 +03 06 53.2 |
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Date first |
1979 |
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Date last |
1979 |
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Obs |
1 |
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Pa first |
130 |
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Pa last |
130 |
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P.A. Now (θ) |
130° |
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Sep first |
0.1 |
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Sep last |
0.132 |
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Sep. Now (ρ) |
0.132" |
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Mag pri |
3.40 |
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Mag sec |
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delta mag (ΔM) |
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Spectral class |
F3IV (yellow-white) |
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Pri motion ra |
+255 |
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Sec motion ra |
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Pri motion dec |
+083 |
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Sec motion dec |
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Notes |
N
X
(See Notes, Dubious double) |
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Nature of this double is uncertain.
19255+0307 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
124603 |
19 25 30 +03 06 53 |
BNU 6 Aa,Ab |
1979 |
1 |
130 |
0.1 |
3.40 |
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Y |
<=== |
Show |
Del Aql |
124603 |
19 25 30 +03 06 53 |
BUP 190 AB |
2016 |
10 |
266 |
137.0 |
3.36 |
12.75 |
9.39 |
|
|
Show |
|
124603 |
19 25 30 +03 06 53 |
VLM 1 AC |
2006 |
1 |
338 |
34.3 |
3.36 |
13.30 |
9.94 |
|
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
NSV12004 Aql |
|
Constellation |
Aquila |
|
SAO |
124603 |
|
HIP |
95501 |
|
Tycho2 |
0469-06227-1 |
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Gaia DR2 |
4289041379334773888 |
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HD |
182640 |
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HR |
7377 |
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GC |
26816 |
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GL |
Gl 760 |
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BD |
BD+02 3879 |
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Bayer |
Delta Aquilae |
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Bayer name |
Del Aql |
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Flamsteed |
30 Aquilae |
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Flamsteed name |
30 Aql |
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FK5 |
730 |
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Distance |
15.53 |
|
Distance ly |
50.66 |
|
Bayer greek |
δ Aql |
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ORBITAL ELEMENTS
Period (P) | 1251.3d (3.43y) | |
Periastron (T) | 34955.5d (1954.581y) | |
Semi-major axis (a) | 55.69m | ± 0.79 |
Eccentricity (e) | 0.36 | |
Inclination (i) | 150° | |
Longitude of periastron (ω) | 191° | |
Node (Ω) | 337° | |
Notes | n | |
Reference | HIP1997d | |
Equinox | | |
Last observation | 1991 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
11.9 |
0.060 |
2001-01-01 |
319.5 |
0.074 |
2002-01-01 |
244.4 |
0.044 |
2003-01-01 |
56.9 |
0.042 |
2004-01-01 |
339.4 |
0.075 |
2005-01-01 |
286.6 |
0.060 |
2006-01-01 |
141.2 |
0.035 |
2007-01-01 |
1.9 |
0.065 |
2008-01-01 |
312.2 |
0.072 |
2009-01-01 |
222.5 |
0.040 |
2010-01-01 |
37.2 |
0.048 |
2011-01-01 |
332.5 |
0.075 |
2012-01-01 |
274.7 |
0.055 |
2013-01-01 |
109.4 |
0.035 |
2014-01-01 |
353.4 |
0.070 |
2015-01-01 |
304.3 |
0.069 |
2016-01-01 |
196.6 |
0.038 |
2017-01-01 |
22.3 |
0.055 |
2018-01-01 |
325.6 |
0.075 |
2019-01-01 |
260.2 |
0.049 |
2020-01-01 |
79.1 |
0.037 |
2021-01-01 |
345.7 |
0.073 |
2022-01-01 |
295.5 |
0.064 |
2023-01-01 |
167.9 |
0.036 |
2024-01-01 |
10.5 |
0.061 |
2025-01-01 |
318.6 |
0.074 |
2026-01-01 |
241.9 |
0.044 |
2027-01-01 |
54.1 |
0.042 |
2028-01-01 |
338.5 |
0.075 |
2029-01-01 |
285.3 |
0.059 |
2030-01-01 |
137.3 |
0.035 |
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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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