Definition

Noun: A solar prominence is a large, bright, gaseous feature extending outward from the Sun's surface. It consists of plasma (ionized gas, primarily hydrogen) that is anchored in the Sun's photosphere and extends outwards into the Sun's corona. Prominences often appear as loops or arching columns and can persist for days or even months before erupting or fading.

Usage

The term solar prominence is used to describe a specific, observable solar phenomenon. It is a scientific term used in astronomy and astrophysics. * Scientists observed a massive solar prominence on the Sun's eastern limb. * The stability and eventual eruption of a solar prominence is a key area of solar physics research.

Advanced Usage

• "Quiescent prominence": A long-lived, stable solar prominence that can last for several solar rotations.
  • The quiescent prominence remained visible for over a month.
• "Eruptive prominence": A solar prominence that becomes unstable and is ejected from the Sun.
  • The eruptive prominence was associated with a coronal mass ejection.

Variants and Related Words

• Prominence (noun): In a general, non-solar context, this means the state of being important, famous, or noticeable. The solar term is a specific application of this word, referring to a feature that or is from the solar surface.
  • He rose to prominence in the field of medicine.
• Solar flare (noun): A sudden, intense burst of radiation from the Sun's surface, distinct from but sometimes associated with prominence eruptions.
• Filament (noun): When a solar prominence is viewed against the bright solar disk (photosphere), it appears as a dark line and is called a filament.

Synonyms

• Solar arc
• Plasma loop (descriptive, but not a perfect synonym as it describes the shape of many prominences)

Related Phrases

• "Limb prominence": A solar prominence observed at the edge (limb) of the Sun, where it appears bright against the dark sky.
  • The telescope captured a stunning image of a limb prominence.

Noun

1. large eruptions of luminous hydrogen gas that rise thousands of kilometers above the chromosphere