X Cyg
Excellent (70/100)
HIP 102276
VariableStar
Cyg
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
6.47
Range
5.85 - 6.91
Period
16.4 days
Variable Type
Classical Cepheid
Spectral Type
F7Ib-G8Ib
Star Color
Red
(B-V 1.23)
Position & Identifiers
RA
20h 43m 24.2s
Dec
+35° 35' 16.0"
Constellation
Cyg
HR
7932
HIP
102276
Variable ID
X Cyg
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Visibility
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Light Curve
Comparison Stars for X Cyg (5.8–6.9)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System C,D: optical
Separation
0.0″
Companion Mag
18.6
Position Angle
145°
Star Colors
A: Red
Discoverer
ISM 5
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
CDelta 5.85 - 6.91, 16.386332d. Period changes.
Survey Image
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