New Millennium Solar Physics

Regió activa

Una regió activa és una regió temporal de l'atmosfera del Sol caracteritzada per un camp magnètic fort i complex.

日冕物質抛射

日冕巨量噴發（CME）是太陽從日冕釋放大量電漿和磁場進入日球層的現象. 日冕巨量噴發通常與太陽耀斑和其他形式的太陽活動有關，但尚未建立能解釋和理解這些關係且能被廣泛接受的理論.

Active region

An active region is a temporary region in the Sun's atmosphere characterized by a strong and complex magnetic field.

Coronal mass ejection

A coronal mass ejection (CME) is a significant ejection of magnetic field and accompanying plasma mass from the Sun's corona into the heliosphere.