EntityQ127948· pop 31· linked from 115 articlescoronal holeSign in to savearea where the Sun's corona is colder and darkerConnectionsSunConceptsolar eclipseEntityX-rayEntityheliosphereEntitysolar cycleEntitysolar telescopeEntitysolar phenomenaEntityEarthConceptSolar SystemEntitystarEntityelectronEntityInternational Standard Book NumberEntityouter spaceEntityatmosphereEntityartificial satelliteEntityplasmaEntitymagnetic fieldEntityultraviolet radiationEntityLunar eclipseConceptastronomical unitEntityCategoriesSolar phenomena