๐”– Bobbio Scriptorium
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Solar photography

โœ Scribed by C.


Publisher
Elsevier Science
Year
1878
Tongue
English
Weight
162 KB
Volume
105
Category
Article
ISSN
0016-0032

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High-resolution filtergrams of the quiet chromosphere, taken at seven wavelengths in Ha with the aid of a computer-controlled ~ A filter, have been used to derive the contrast of ten bright and dark mottles as functions of wavelength. The contrast profiles of bright and dark mottles are strikingly d