40 Com
Observable Variable Star
Good (58/100)
Range: 5.3 - 6.1, Period: 58.0d, Type: SRB
HIP 63950; 40 Com
VariableStar
Com
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
5.60
Range
5.3 - 6.1
Period
58.000 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
M5III
Star Color
Red
(B-V 1.59)
Distance
72.5 ly
Position & Identifiers
RA
13h 06m 22.6s
Dec
+22° 36' 58.0"
Constellation
Com
HR
4949
HIP
63950
Flamsteed
40 Com
Variable ID
FS Com
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Visibility
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Light Curve
Comparison Stars for 40 Com (5.3–6.1)
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 Notes
SRb 5.30 - 6.1v, 58:d.
Survey Image
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