Delta Aquilae — Star in Aquila
Observe
1Physical Properties
Magnitude
3.36
Range
3.36 - 3.37
Period
25.1 hours
Variable Type
GDOR:
Spectral Type
F1IV-V(n)
subgiant
Star Color
Yellow-white
(B-V 0.32)
Distance
50 ly
2Position & Identifiers
RA
19h 25m 29.9s
Dec
+03° 06' 53.0"
Constellation
Aquila
(Aql)
HR
7377
HIP
95501
HD
182640
SAO
124603
Bayer
Delta
Flamsteed
30 Aql
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Easy | Easy | Medium+ |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Jun – Aug
(peak: Jul)
5Survey Image
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Explore
7
Size Comparison
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8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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11
Stellar Lifecycle
12
Blackbody Spectrum
13
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
14
Stellar Fusion
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15Stellar Notes
Delta Sct? Proper motion slightly variable?
Component A astrometric binary, A* 3.36 F0IV, 3.422y, a = 0.058"; unresolved by speckle interferometry.
0.1571d.
16
Light Travel Time Machine
17
Relativistic Travel
Nearby in the Sky
Other targets within a few degrees — pan your scope a little and keep exploring.
Visibility scores assume a 150 mm Newton at Bortle 4.
23 Aql
Easy double, sep 3.3″
Double Star
mag 5.10
2.7°
Aquila
NGC 6760
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 9.1
4.1°
Aquila
NGC 6756
Open cluster
Open Cluster
mag 11.0
4.5°
Aquila
R Aql
Mira-type variable, range 5.5–12.0
Variable Star
mag 6.09
7.0°
Aquila
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