Abstsact. Based on pinhole photometer observations in 4-6 wavelength regions 'gee have searched for a connection between the intensities of the umbra and the penumbra of sunspots. For the 1.67 pm wavelength region it is apparent that spots with dark umbrae also have dark penumbrae. In the other wave
β¦ LIBER β¦
On the continuum intensity of the umbra of large sunspots
β Scribed by P. Maltby
- Publisher
- Springer
- Year
- 1970
- Tongue
- English
- Weight
- 357 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0038-0938
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