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Wolf number - Wikipedia
The Wolf number (also known as the relative sunspot number or Zürich number) is a quantity that measures the number of sunspots and groups of sunspots present on the surface of the Sun. Historically, it was only possible to detect sunspots on the far side of the Sun indirectly using helioseismology. Since 2006, … See more
The relative sunspot number $${\displaystyle R}$$ is computed using the formula
$${\displaystyle R=k(10g+s)}$$
where See moreThe accuracy of the compilation of the group sunspot number series has been questioned, motivating the development of several alternative series suggesting different behavior of sunspot group activity before the 20th century. However, indirect indices of solar … See more
Wikipedia text under CC-BY-SA license Wolf number - Wikiwand
Revisiting the Sunspot Number | Space Science …
Aug 5, 2014 · We finally conclude with future prospects opened by this epochal revision of the Sunspot Number, the first one since Wolf himself, and its reconciliation with the Group Number, a long-awaited modernization that will …
Sunspot Observations of Rudolf Wolf from 1849 – 1893
Sunspot Numbers | NCEI - National Oceanic and …
Many refer to the sunspot number as a Wolf number or count (or as a Zurich Sunspot Number). Results, however, vary greatly, since the measurement strongly depends on observer interpretation and experience and on the …
Sunspot Number Data | NCEI - National Oceanic and Atmospheric ...
Wolf, Rudolf (1816–1893), and Wolf number | SpringerLink
The Wolf sunspot number - SIDC
Learn how the Wolf Sunspot Number is derived from daily drawings of the solar disk by Professor David and his team at the Royal Observatory of Belgium. The Wolf Number reflects the solar activity cycle of 11 years and its variations.
Wolf Number | COSMOS - Swinburne
Wolf number Definition & Meaning - Merriam-Webster
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