Headlines > News > SOHO Sees Something New Near The Sun

SOHO Sees Something New Near The Sun

Published by Klaus Schmidt on Tue Feb 24, 2015 7:55 pm via: NASA
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An unusual comet skimmed past the sun on Feb 18-21, 2015, as captured by the European Space Agency (ESA) and NASA’s Solar and Heliospheric Observatory, or SOHO.

This comet was interesting for two reasons. First it’s what’s called a non-group comet, meaning it’s not part of any known family of comets. Most comets seen by SOHO belong to the Kreutz family – all of which broke off from a single giant comet many centuries ago.

The second reason it’s interesting is because the vast majority of comets that come close enough to the sun to be seen by SOHO do not survive the trip. Known as sungrazers, these comets usually evaporate in the intense heat of the sun. This comet made it to within 2.2 million miles of the sun’s surface – but survived the trip intact.

“There’s a half-decent chance that ground observers might be able to detect it in the coming weeks,” said Karl Battams, a solar scientist at the Naval Research Lab in Washington, D.C. “But it’s also possible that events during it’s trip around the sun will cause it to die fairly fast.”

Since launching in 1995, SOHO has become the number one comet finder of all time — this was comet discovery number 2,875. However, SOHO sees non-group comets like this only a few times a year.

Watch the video to see the comet fly around the sun. Toward the end of the video, as the comet begins to develop a tail, the sun releases an eruption of solar material, called a coronal mass ejection, or CME, to add something more to the scene.

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