Wilson effect
Sign in to savePerceived depression in sunspot umbrae
Connections
Sun
Concept
heliosphere
Entity
solar cycle
Entity
solar telescope
Entity
umbra, penumbra and antumbra
Entity
solar phenomena
Entity
star
Entity
Solar System
Entity
solar eclipse
Entity
magnetic field
Entity
Lunar eclipse
Concept
solar energy
Entity
digital object identifier
Entity
solar wind
Entity
sunspot
Entity
convection
Entity
sunlight
Entity
solar corona
Entity
JSTOR
Organization
bibcode
Entity