Skip to search form
Skip to main content
Semantic Scholar's Logo
Create Free Account
You are currently offline. Some features of the site may not work correctly.
National Institutes of Health
Semantic Scholar uses AI to extract papers important to this topic.
Sunspot numbers based on historic records in the 1610s - early telescopic observations by Simon Marius and others
Corpus ID: 118623038
Hoyt & Schatten (1998) claim that Simon Marius would have observed the sun from 1617 Jun 7 to 1618 Dec 31 (Gregorian calendar…
Is this relevant?
By clicking accept or continuing to use the site, you agree to the terms outlined in our
Terms of Service
ACCEPT & CONTINUE