SOLAR SYSTEM

UNIVERSE

THE SUN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a prominence on the sun?
A
a part of the sun’s corona, a cloud of colored gas
B
a disturbance in the sun’s atmosphere; an arched, glowing cloud of gas
C
a part of the convective zone, a cool area with powerful magnetic fields
D
a magnetic disruption in the sun’s photosphere
Explanation: 

Detailed explanation-1: -A solar prominence (also known as a filament when viewed against the solar disk) is a large, bright feature extending outward from the Sun’s surface. Prominences are anchored to the Sun’s surface in the photosphere, and extend outwards into the Sun’s hot outer atmosphere, called the corona.

Detailed explanation-2: -Prominences are shaped by the Sun’s complex magnetic field, often forming loops with each end anchored to the Sun’s surface.

Detailed explanation-3: -Prominences appear either as flame-coloured projections when the disk of the Sun is totally eclipsed or as dark ribbons (called filaments) when viewed through a spectroscope.

Detailed explanation-4: -The largest prominence on record streamed more than 800, 000 km (500, 000 miles) into the corona; that’s about the radius of the Sun. These solar features can last from just a few days to over a few months. When a prominence breaks free of the Sun, astronomers call this detachment a coronal mass ejection, or CME.

Detailed explanation-5: -A solar prominence typically does not do much to Earth, since it stays anchored to the sun. Sometimes, a prominence can break down and release a solar flare, which then interferes with radios and satellite communications.

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