Noun:
-
large eruptions of luminous hydrogen gas that rise thousands of kilometers above the chromosphere
- From this atmosphere, great flamelike prominence somitimes extends out into space.
有时，很大的象火焰般的日珥从这个大气野伸展到空间。
- Sunspots, the Solar Cycle, and solar prominences are all caused by the Sun's changing magnetic field.
黑子，太阳活动周期，以及日珥都是由太阳不断变化的磁场造成的。
