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Rho Aquilae — Star in Aquila

Magnitude 5.0m Star Aquila (Aql) Visible
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Observe

1Physical Properties

Magnitude 4.95
Spectral Type A2V
Star Color White (B-V 0.08)
Distance 142 ly

2Position & Identifiers

RA 20h 14m 16.6s
Dec +15° 11' 51.0"
Constellation Aquila (Aql)
HR 7724
HIP 99742
HD 192425
SAO 105878
Bayer Rho
Flamsteed 67 Aql
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium Medium Hard+
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season Jun – Aug (peak: Jul)

5Survey Image

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6

Size Comparison

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7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

13

Stellar Fusion

Discover

14

Light Travel Time Machine

15

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.

10 Sge
Medium+
Pulsating variable, period 8.4d
Variable Star mag 5.36 4.6° Sagitta
M71
Angelfish Cluster
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 8.2 6.1° Sagitta
Pi Aql
Hard+
Tight double — a rewarding split at 1.4″
Double Star mag 5.72 7.1° Aquila
M27
NGC 6853
Easy
Planetary nebula — try an OIII filter
Planetary Nebula mag 8.1 8.3° Vulpecula
Show on Map

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