Talk:Solar cycle 3

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Huge change in max smoothed sunspot number

On 24 May 2017, Jan Janssens (STCE) increased the smoothed sunspot numbers by 66.67%.

That represented a change from the SIDC version 1 convention to the SIDC version 2 convention, but there's no explanation in the article about which version it is. I propose changing this article, and the other Solar Cycle articles, to clarify that; please discuss it here:

https://en.wikipedia.org/wiki/Talk:Solar_cycle_2#Huge_change_in_max_smoothed_sunspot_number NCdave (talk) 07:44, 10 November 2017 (UTC)[reply]