Why is the corona so hot? The rarefied corona, invisible from the Earth surface, stretches over the photosphere, i.e., over the visible surface of the sun. It is known that the corona is several times hotter, than the photosphere. For a long time astronomers assumed that the cause of such high temperature of the corona lies in the magnetic field, which keeps gigantic plasma loops high over the sun surface. Close supervision of coronal loops from TRACE satellite are to indicate the source of the corona energy more exactly. Devices at TRACE satellite obtain pictures of the sun in ultraviolet rays of very high energy. Based on these pictures a conclusion was made that considerable heating of the corona occurs in its lower layers, at the foundation of the loops, where plasma begins rising and goes back to the sun surface. The current striking picture from the TRACE demonstrates condensations of majestic hot coronal loops, which stretch upwards at 30 and more Earth diameters! Authors: M. Ashvaneni and others (Lockheed Martin Sun and Astrophysics Lab), TRACE, NASA.
Most popular and biggest amazing ,cool and stunning photos directory in the world.
Subscribe to:
Post Comments (Atom)
Popular Posts
-
Lean Video : Discover the secret behind the 45 degree lean in the Smooth Criminal video and in the live performance. Michael Jackson and tw...
-
Check out this incredible optical illusion ! sent to me by one of my reader . WHAT DO YOU SEE below? Let me know in the comment section. If ...
-
There is a Secret Message Appears as You Move Further Away or close your eyes slowly. Dont forget to comment what you had seen?
-
Interesting illusion of letters on the walls at the Eureka Tower Car Park in Melbourne that can be read perfectly at certain angles while lo...
-
How many faces can you find in this image? Click on the image to see a bigger image.
-
There are more than 1000 of faces here which also includes a special faces of Jesus Christ. Can you find where is the Jesus face? If you had...
-
Two tiles, seemingly different colors from one angle are actually the same color in different lighting. I don't get it at all. Wha...
.
-
How many faces can you find in this image? Click on the image to see a bigger image.
-
Lean Video : Discover the secret behind the 45 degree lean in the Smooth Criminal video and in the live performance. Michael Jackson and tw...
-
An oscillating fan The innermost ring appears to shift leftward for 4 seconds, while it appears to move rightward the next 4 seconds.
-
There are more than 1000 of faces here which also includes a special faces of Jesus Christ. Can you find where is the Jesus face? If you had...
-
This illusion was created by Talendo with by getting idea from the Previous Woman Behind Man post . But this time you will see a Men Behin...
No comments:
Post a Comment