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Daily Astronomy Blurb: A Solar Prominence Eruption from SDO

One of the most spectacular solar sights is an erupting prominence. In 2011, NASA's Sun-orbiting Solar Dynamic Observatory spacecraft imaged an impressively large prominence erupting from the surface. The dramatic explosion was captured in ultraviolet light in the featured time lapse video covering 90 minutes, where a new frame was taken every 24 seconds. The scale of the prominence is huge -- the entire Earth would easily fit under the flowing curtain of hot gas. A solar prominence is channeled and sometimes held above the Sun's surface by the Sun's magnetic field. A quiescent prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME) expelling hot gas into the Solar System. The energy mechanism that creates a solar prominence is still a topic of research. After our Sun passes the current Solar Minimum, solar activity like eruptive prominences are expected to become more common over the next few years.
© apod.nasa.gov

ACAC News


Glad to have you aboard, Megan. Keep in touch. We plan to revive Baywalk Astronomy in early June. ... See MoreSee Less

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Athena Community Astronomy Club

Posted 2 months ago

Athena Community Astronomy Club

Working to preserve and protect the natural night-time environment doesn’t have to be complicated! Check out these simple steps you can take today to help end light pollution. #IDSW2019

www.darksky.org/dark-sky-week-2019/
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Posted 2 months ago

Athena Community Astronomy Club

StarTalk
Does the super moon really look that much bigger than an average mN-oon? Astrophysicist Neil deGrasse Tyson brought comedian Chuck Nice to a pizzeria to bring his perspective to this cultural phenomenon.
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