Wolf number
Sign in to saveAlso known as International sunspot number, Zürich number, relative sunspot number, SSN
measure of sunspots
Connections
Sun
Concept
sunspot
Entity
heliosphere
Entity
solar cycle
Entity
solar telescope
Entity
solar phenomena
Entity
Switzerland
Country
star
Entity
Solar System
Entity
Zurich
Entity
International Standard Book Number
Entity
solar eclipse
Entity
Lunar eclipse
Concept
solar energy
Entity
digital object identifier
Entity
solar wind
Entity
Q180686
Entity
sunlight
Entity
solar corona
Entity
bibcode
Entity