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Historical solar Ca II K observations at the Rome and Catania observatories

Journal
Date Issued
2019
Author(s)
CHATZISTERGOS, THEODOSIOS
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•
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Krivova, N. K.
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Solanki, Sami K.
DOI
Abstract
Here we present the little explored Ca II K archives from the Rome and the Catania observatories and analyse the digitised images from these archives to derive plage areas.
Volume
42
Uri
Url
Issn Identifier
2037-4909
Ads BibCode
2019NCimC..42....5C
Rights
open.access
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