28 Aql
HIP 94982; 28 Aql
DoubleStar
Aql
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.53
Variable Type
Delta Scuti (Pulsating)
Spectral Type
F0III
Star Color
Yellow-white
(B-V 0.26)
Distance
815.4 ly
Position & Identifiers
RA
19h 19m 39.3s
Dec
+12° 22' 29.0"
Constellation
Aql
HR
7331
HIP
94982
Flamsteed
28 Aql
Variable ID
V1208 Aql
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
60.7″
Companion Mag
9.0
Position Angle
175°
Star Colors
A: Yellow-white
B: Orange
Discoverer
S 717
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 60.7″ · PA: 175° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
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 Notes
Delta Sct 5.51 - 5.57V. Period analyses of new and existing data by Reed and Welch (1988, AJ, 95, 1510) indicate a | possible change in pulsational modes during the last several years, with fundamental period of 0.146d and possible | nonradial pulsations of 0.141, 0.183, and 0.091d.
Survey Image
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