V1339 Cyg
Excellent (67/100)
HIP 107140
VariableStar
Cyg
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
6.17
Range
5.90 - 6.45
Period
35 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
M4III:
Star Color
Red
(B-V 1.55)
Distance
1,087 ly
Position & Identifiers
RA
21h 42m 08.4s
Dec
+45° 45' 57.0"
Constellation
Cyg
HR
8298
HIP
107140
Variable ID
V1339 Cyg
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Visibility
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Light Curve
Comparison Stars for V1339 Cyg (5.9–7.1)
Nearby stable stars for estimating brightness (AAVSO)
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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
SRb 5.9 - 7.1v, 35?d.
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