21 Aql
HIP 94477; 21 Aql
Star
Aql
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.15
Range
5.06 - 5.16
Period
41.5 hours
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
B8II-III
Star Color
Blue-white
(B-V -0.07)
Distance
362 ly
Position & Identifiers
RA
19h 13m 42.7s
Dec
+02° 17' 37.0"
Constellation
Aql
HR
7287
HIP
94477
Flamsteed
21 Aql
Variable ID
V1288 Aql
Double Cat
12182
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Visibility
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Light Curve
Multiple Star System
Separation
36.9″
Companion Mag
12.3
Position Angle
287°
Star Colors
A: Blue-white
Discoverer
HJ 879
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
Alpha CV 5.06 - 5.16V, 1.73d.
Companion optical.
Survey Image
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