X Cyg
Observable Variable Star
Excellent (61/100)
Range: 5.8 - 6.9, Period: 16.4d
HIP 102276
VariableStar
Cyg
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
6.47
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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Comparison Stars for X Cyg (5.8–6.9)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
0.0″
Companion Mag
18.6
Position Angle
145°
Star Colors
A: Red
Discoverer
ISM 5
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 145° · N up, E left
Unresolved · 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
CDelta 5.85 - 6.91, 16.386332d. Period changes.
Survey Image
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