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Interactive_orbs.shtml
Interactive_orbs2.shtml

Introduction.shtml

Color_perception.shtml

EMR_light.shtml

Black_body.shtml
Spectroscopy.shtml
Doppler.shtml
Sol.shtml
ExploreSun.shtml
TheRealStuff.shtml
Earthshine.shtml
 
Sun, EIT image This image of the Sun was taken in the ultraviolet band, by the EIT telescope.

Click here buttonto see a 1.4 MB. Quicktime video, which is one of the best animations of the Sun. It was created by Dr. Alexander Panasyuk of the Harvard-Smithsonian Center for Astrophysics. It shows the photosphere (the ball in the middle, which is what we actually see), and the corona (the cloud-like curtain around it). The images were taken in the ultraviolet band, by the EIT and UVCS telescopes on board the SOHO satellite.

This video is best watched while listening to 'Here Comes the Sun', George Harrison's composition, performed here by the Beatles.

Get it, In Real Player format - 359 KB

To get the free Real Player, click and carefully follow the instructions to download Real Player 8 Basic.

Spectroscopy allows us to take images in any band and 'colorize' them, by associating levels of color to intensities. With this technique, the video shows a wealth of information about our Sun, so much more than we can see in visible light.

 
The Sound of the Sun

Did you ever wonder what the Sun would sound like if you got close enough to hear it? Fire sure isn't quiet, is it? Scientists at Stanford University in California have worked with the telemetry files from their Michelson Doppler telescope, which measures magnetic fields, and have produced several sound files. Click here to link to their site and listen to sun sounds. Amazing, isn't it? No snap, crackle or pop!

 

Now, for something really COOL!!! Let's examine the Sun with different wavelength filters...