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Overview

loop prominence

A very bright active prominence in the form of a loop above the site of a very large flare, seen on the Sun's limb in Hα light. A series of loop prominences usually occurs, progressively ...

loop prominence

loop prominence   Quick reference

A Dictionary of Astronomy (2 rev. ed.)

Reference type:
Subject Reference
Current Version:
2012

... prominence A very bright active prominence in the form of a loop above the site of a very large flare, seen on the Sun's limb in H α ‎ light. A series of loop prominences usually occurs, progressively larger loops forming above one another. The smaller, earlier ones eventually fade from sight after an hour or so. The maximum height attained is 100 000 km, and a complete loop prominence system may last more than a day. X-ray loops, observed simultaneously on occasion, are located on the outer edge of H α ‎ loops, giving the impression that loop ...

loop prominence

loop prominence  

A very bright active prominence in the form of a loop above the site of a very large flare, seen on the Sun's limb in Hα light. A series of loop prominences usually occurs, progressively larger loops ...
active prominence

active prominence  

A solar prominence with very rapid motion (up to 2000 km/s), often associated with a flare. Active prominences are located at low latitudes on the Sun, where sunspots and active regions are usually ...
coronal rain

coronal rain  

Globules of gas seen in Hα light descending along curved paths to the chromosphere. They are the final stage in the development of loop prominences, which are produced by a large flare on the Sun's ...
spray

spray  

An explosive solar prominence, associated with a flare, with very high velocity—up to 2000 km/s, faster than the escape velocity of the Sun. The material of a spray appears fragmented, sometimes in a ...
coronal mass ejection

coronal mass ejection  

The large-scale ejection of matter from the Sun's corona at speeds of 10–3000 km/s. The mass thrown off in such an event is about 1013 kg. Spacecraft coronagraphs show that a typical CME consists of ...
flare, solar

flare, solar  

A sudden release of energy in the Sun's corona, lasting up to several hours or, exceptionally, more than a day. Flares usually occur within about 175 000 km of the Sun's surface (one-quarter of a ...
active prominence

active prominence   Quick reference

A Dictionary of Astronomy (2 rev. ed.)

Reference type:
Subject Reference
Current Version:
2012

...prominence A solar prominence with very rapid motion (up to 2000 km/s), often associated with a flare. Active prominences are located at low latitudes on the Sun, where sunspots and active regions are usually found. The main categories include loop prominences , coronal rain , surge prominences , sprays , and arch filament systems...

prominence

prominence   Quick reference

A Dictionary of Space Exploration (2 ed.)

Reference type:
Subject Reference
Current Version:
2006

... A bright cloud of gas projecting from the Sun into space 100 000 km or more. Quiescent prominences last for months, and are held in place by magnetic fields in the Sun's corona. Surge prominences shoot gas into space at speeds of 1 000 kps. Loop prominences are gases falling back to the Sun's surface after a solar flare...

spray

spray   Quick reference

A Dictionary of Astronomy (2 rev. ed.)

Reference type:
Subject Reference
Current Version:
2012

...An explosive solar prominence , associated with a flare, with very high velocity—up to 2000 km/s, faster than the escape velocity of the Sun. The material of a spray appears fragmented, sometimes in a loop...

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