Google Play icon

SOHO Sees Something New Near The Sun

Share
Posted February 25, 2015

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.

Comet SOHO-2875 survived its close passage of the Sun and may make an appearance in the evening sky soon. This photo montage was made using the coronagraph (Sun-blocking device) on SOHO. Click to watch a movie of the comet. Credit: NASA/ESA

Comet SOHO-2875 survived its close passage of the Sun and may make an appearance in the evening sky soon. This photo montage was made using the coronagraph (Sun-blocking device) on SOHO. Click to watch a movie of the comet. Credit: NASA/ESA

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 sunlight. This comet made it to within 2.2 million miles of the sun’s surface – but survived the trip intact.

An comet circles around the sun in this movie from ESA/NASA’s SOHO. The comet is somewhat unusual as it’s not form any known family of comets. This is the 2,875th comet discovered by SOHO. Image Credit: ESA/NASA/SOHO/Hill

“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 its 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.

A description of sungrazer comets and where they come from. Image Credit: NASA/Goddard Space Flight Center/Duberstein

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.

Source: NASA

Featured news from related categories:

Technology Org App
Google Play icon
86,010 science & technology articles

Most Popular Articles

  1. Universe is a Sphere and Not Flat After All According to a New Research (November 7, 2019)
  2. NASA Scientists Confirm Water Vapor on Europa (November 19, 2019)
  3. This Artificial Leaf Turns Atmospheric Carbon Dioxide Into Fuel (November 8, 2019)
  4. How Do We Colonize Ceres? (November 21, 2019)
  5. Scientists created a wireless battery free computer input device (6 days old)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email