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The color temperature of a sunspot penumbra

โœ Scribed by Bruce W. Lites


Publisher
Springer
Year
1984
Tongue
English
Weight
678 KB
Volume
90
Category
Article
ISSN
0038-0938

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๐Ÿ“œ SIMILAR VOLUMES


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The intensity of the penumbra of large s
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The area ratio of umbra to penumbra (Au/Ap) was investigated for a series of 126 sunspots observed around the maximum of solar activity in 1980. Plotting log (Au) as function of log (Ap) a linear relation is obtained with a slope of 1.10, yielding an average ratio Au/Ap of 0.24 for small spots and o