Categories: sun

Recent Sun Activity: Plasma Fountains, Sun-Grazing Comet

Interesting activity captured on the Sun early today (July 12, 2011) showing an active region on the Sun’s Eastern limb. Plasma was hurled very high above the stellar surface, but didn’t have the needed escape velocity and most of the plasma “rained” back down in a fountain. The video shows the activity in different wavelengths.

See below for more views, including the first time a sun-grazing comet was seen disintegrating over the Sun’s surface.


[/caption]

This great ground-based look at the Sun is from July 11, 2011. “A sun a little more active than the past few days, although with much mist in the city, making it impossible to get photos of larger increases,” said Cesar Cantu from Monterrey, Mexico, with his Chilidog Observatory. See more at his website, Astronomía Y Astrofotografía.

The Solar Dynamics Observatory AIA imager spotted a sun-grazing comet zooming across the face of the sun and disintegrating over about a 15 minute period on July 6, 2011. This has never observed before. It’s a little difficult to see, but look closely as a line of light appears in the right just off the edge of the Sun and move across to the left. The angle of the comet’s orbit brought it across the front half of the Sun.Given the intense heat and radiation, the comet simply evaporated away completely. SDO scientists say the comet was probably a member of the Kreutz sun-grazer family. The AIA imager took this video in extreme ultraviolet.

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

Recent Posts

The First Close-Up Picture of Star Outside the Milky Way

Like a performer preparing for their big finale, a distant star is shedding its outer…

8 hours ago

Here’s What We Know About Earth’s Temporary Mini-Moon

For a little over a month now, the Earth has been joined by a new…

10 hours ago

New Study Suggests Black Holes Get their “Hair” from their Mothers

Despite decades of study, black holes are still one of the most puzzling objects in…

11 hours ago

Gaze at New Pictures of the Sun from Solar Orbiter

74 million kilometres is a huge distance from which to observe something. But 74 million…

11 hours ago

Are Fast Radio Bursts Caused by Interstellar Objects Crashing Into Neutron Stars?

Astronomers have only been aware of fast radio bursts for about two decades. These are…

16 hours ago

Here’s How to Weigh Gigantic Filaments of Dark Matter

How do you weigh one of the largest objects in the entire universe? Very carefully,…

18 hours ago