21 Com
HIP 61071; 21 Com
Star
Com
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
5.46
Range
5.44 - 5.46
Period
2.052 days
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A2p
Star Color
White
(B-V 0.05)
Position & Identifiers
RA
12h 31m 00.6s
Dec
+24° 34' 02.0"
Constellation
Com
HR
4766
HIP
61071
Flamsteed
21 Com
Variable ID
UU Com
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Light Curve
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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
Alpha CV + Delta Sct 5.41 - 5.46V, 2.1953d with secondary variations of 1.0256d and 0.9178d. Also Delta Sct amp. about | 0.01V, 0.0227d or 0.0274d and 0.2909d. Considerable discordance among observers. CaII and SrII vary in period about | 1d; period changes.
Mel 111 #160 (Coma).
Magnetic star. Sr, Cr, Eu?
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