FTP, name this type of luminous atmospheric phenomenon that shares its name with the Roman goddess of the dawn.
Geomagnetic field lines can guide energetic electrons and protons from the magnetosphere down to the Earth's atmosphere. Precipitating particles loose their energy via collisions with the neutral particles and ionize them at approximately the same altitude range as solar UV radiation when creating the ionosphere. In addition, some of the atmospheric constituents are excited to higher energy levels: this can lead to emission of a certain type of light. FTP, name this type of luminous atmospheric phenomenon that shares its name with the Roman goddess of the dawn.
Geomagnetic field lines can guide energetic electrons and protons from the magnetosphere down to the Earth's atmosphere.
{Aurora} (Borealis or Australis)