Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
In article ,
"Buzzygirl" wrote: "Verstaldin" wrote in message ... While prominences and flares can be exciting in an esthetic sense, the reality behind those beautiful pitcures is terrifying. Our local star is wonderful and stable, but being that it is basically a gigantic nuclear reactor, it's also inherently nasty. The only reason we live in peace with it is because of our thick, protective magnetic field and our ozone layer. There are massive doses of UV, x-rays and gamma rays thrown out in one major x-class flare. Even some of the smaller solar flares are larger than the entire Earth. The bigger ones are larger than many Earths strung end-to-end. Our observatory has a telescope that is specifically designed to look at the Sun in a specific wavelength of light, known as hydrogen alpha (H-alpha). It only allows you to view in a certain small slice of light wavelength (the alpha emission line in the red end of the spectrum), but that is where all the action is. When the Sun is really active, you can see solar flares, prominences and even the boiling "granulation" that marks the photosphere* of the Sun through this scope. You can see the surface of the Sun literally change before your eyes. Four years ago when the Sun was more active than now, I was watching gigantic loops of superheated hydrogen gas coming out of sunspots and looping back into them again. To see that kind of detail from the Earth just takes your breath away. Here's a picture pretty similar to what I saw: http://www.space.com/scienceastronom...te_000926.html Jackie *The Sun technically has no solid surface, but what appears to us as a surface, we refer to as the photosphere. See the sun at different wavelengths. Click on each image to get a larger picture of the full disk. http://www.n3kl.org/sun/ -- Telamon Ventura, California |
#2
![]() |
|||
|
|||
![]()
I dont need a compass to know the general direction of North,South,
(South is always best) East and West.I have the good old Sun and the good old Stars. www.google.com Fourmilab Earthview cuhulin |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
International Space Station School Contacts on Oct 5th, 6th 7th | General | |||
International Space Station School Contacts on Oct 5th, 6th 7th | Shortwave | |||
Space Weather Alerts for 4/12 and 4/13 | Shortwave | |||
INTERNATIONAL SPACE STATION LIVE ON ECHOLINK MARCH 8th TUES 1410GMT | General | |||
NOAA National Weather Service Office | Shortwave |