The Auroraīorealis occurs in the northern hemisphere and the Aurora Australisīartels Rotation Number. Typical auroras are 100 to 250 km above the ground. Geomagnetic activity, which occurs mainly in the high-latitude night A faint visual (optical) phenomenon on the Earth associated with The mean Earth-Sun distance, equal to 1.496E+13cm or 214.94 solarĪurora. A localized, transient volume of the solar atmosphere in which plages, sunspots, faculae, flares, etc. Solar activity levels with at least one geophysical event or severalĪctive Region (AR). Present some of the Sun's vital statistics with a "down-to-Earth"Īctive. Would you like more perspective about these solar phenomena? We V - Very High Frequency, Very Low Frequency W - White Light, Wolf Number X - X-ray Burst. T - Transition Region U - Umbra, Universal Time. Q - Quiet R - Radio Emission, Recurrence. M - Magnetogram, Magnetopause, Magnetosphere N - Nanotelsa P - Penumbra, Photosphere, Plage. I - Interplanetary Magnetic Field, Ionosphere. H - H-alpha, Heliocentric, High Frequency. E - Eclipse, Emerging Flux Region, Eruptive. C - Chromosphere, Coordinated Universal Time. Glossary INDEX OF SUBJECT CATEGORIES: A - Active, Active Region, Angstrom.
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