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On the reliability of the Catania sunspot area measurements

✍ Scribed by G. Godoli; O. Morgante; M. L. Sturiale

Publisher
Springer
Year
1971
Tongue
English
Weight
91 KB
Volume
16
Category
Article
ISSN
0038-0938

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✦ Synopsis

Since 1892 daily drawings of sunspot pores and sunspots have been made, at Catania, using the Cooke refractor (15 cm/223 cm) on a projected image of 24.5 cm.

The results of these observations were published periodically from 1892 to 1955 in

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