Delta Sct
Observable Variable Star
Good (48/100)
Range: 5.0 - 5.2, Period: 4.7h, Type: Delta Sct
HIP 91726; Delta Sct
VariableStar
Sct
Visible
Level 3
Medium telescope (6-8") - Monitor brightness changes
Physical Properties
Magnitude
4.72
Variable Type
Delta Scuti (Pulsating)
Spectral Type
F2IIIpDel Del
Star Color
Yellow-white
(B-V 0.35)
Distance
130.5 ly
Position & Identifiers
RA
18h 42m 16.4s
Dec
-09° 03' 09.0"
Constellation
Sct
HR
7020
HIP
91726
Bayer
Delta
Variable ID
Del Sct
Double Cat
11581
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Visibility
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Comparison Stars for Delta Sct (5.0–5.2)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Components
3
Component IDs
AC
Separation
14.4″
Companion Mag
12.2
Position Angle
45°
Star Colors
A: Yellow-white
Discoverer
RST4594
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 14.4″ · PA: 45° · 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
ADS 11581A, Delta Sct 4.98 - 5.16B, 0.193770d, 0.11636d. Beat period 5.24774d. Other periods 0.095129, 0.186872, | 0.838d. This "prototype" Delta Sct star is the least typical of its class.
Component B, 10v, gK, optical. AC, CPM? A may be close binary, about 10d orbital period.
Hyades group.
Survey Image
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