Re-examination of the Daily Number of Sunspot Groups for the Royal Observatory, Greenwich (1874 – 1885)

Title
Re-examination of the Daily Number of Sunspot Groups for the Royal Observatory, Greenwich (1874 – 1885)
Authors
Keywords
Greenwich photo-heliographic results, Daily number of sunspot groups, Derivation of a new dataset, Days without solar photographs, Sunspot groups that exist for a single day, Temporary invisibility of some sunspot groups, Errors in the calculation of personal correction factors
Journal
SOLAR PHYSICS
Volume 291, Issue 9-10, Pages 2519-2552
Publisher
Springer Nature
Online
2016-02-18
DOI
10.1007/s11207-016-0856-7

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