Monday, February 27, 2012

VIDEO: Filament Eruption on 2012-02-27

This video shows a large filament eruption on the northeast limb today. I made it from almost 2100 images, 21 hours of data from 00:00 to 21:00.

Friday, February 24, 2012

SDO Composite Images from 2012-02-24

Composite image made from today's SDO AIA 211Å, 193Å, and 171Å data.



Composite image made from today's SDO AIA 94Å, 335Å, and 193Å data.



Composite image made from today's SDO AIA 304Å, 211Å, and 171Å data.

VIDEO: Filament Eruption from the SDO on 2012-02-24

This 211Å, 193Å, and 171Å composite video highlights a large filament eruption. It shows the northeast section of the Sun for 12 hours from 00:00 to 12:00. A composite video like this lets us see the action from the transition region all the way up into the corona. The red is the 211Å channel and represents temperatures around 3.5 million Fahrenheit. The green shows the 193Å channel which highlights temperatures around 2.25 million degrees Fahrenheit. And the blue is the 171Å channel with temperatures around 1.8 million degrees Fahrenheit.

Thursday, February 23, 2012

The Sun Today from the SDO

This is what the Sun looks like today from the Solar Dynamics Observatory. The image in the upper left is from the 4500Å filter showing the photosphere of the Sun. That is the light-emitting surface, what we see with our eyes. There are some sun spots rotating toward the horizon near the western limb. The other three images are composites made from combinations of data gathered by various EUV filters on the SDO satellite.

Tuesday, February 21, 2012

VIDEO: Lunar Transit from the SDO

Here is a 211Å, 193Å, and 171Å composite video of today's lunar transit. It shows the Sun for 4 hours from 00:00 to 16:00. Through the middle of the video the Moon can be seen passing between the SDO and the Sun!

Monday, February 20, 2012

193Å Running Difference Image

This is a running difference image, a simple graph representing the differences between two images gathered at different times. This one was made using the SDO AIA 193Å data from 00:30 and 01:30 on 2012-02-20. The original pair of images show us thermal characteristics of the Sun's corona, a region with temperatures typically around 1.25 million K, or about 2.25 million degrees Fahrenheit. This part of the Sun's atmosphere is tens of thousands of kilometers above the photosphere. The photosphere is the part that emits the light we see. The source images were acquired an hour apart, and the single image you see above is the result of processing them into a running difference graph.

Friday, February 17, 2012

SDO Composite Image - 2012-02-17

This is a composite image made using today's data from the SDO's AIA 94Å, 335Å, and 193Å channels. The original data is in black and white. The colors are created by making the data into a standard red, green, blue image, the kind we typically see on computer monitors.