In article
,
"G.." wrote:

On May 23, 1:32*pm, dave wrote:
Telamon wrote:
In article
,
*Graham wrote:

What are the *white *spotsshowing on the *sun.... are these *solar
flares ?
something *showing on this :-

http://www.bbso.njit.edu/Images/daily/images/kfull.jpg

but *image will change with time (22/5)

full set of images :-

http://www.n3kl.org/sun/

Very small sunspots where the field lines are not twisted much or very
strong. Look at the magnetogram where the redspotsare negative gauss
and the blue positive gauss.

http://www.astro.ucla.edu/~obs/cur_mag_fe1.html

http://umbra.nascom.nasa.gov/eit/ima..._195_full.gif- Hide
quoted text -

- Show quoted text -

Ok .. can see the link in the two images and the field lines

Q do these 'small spots' infulence radio or is there a differant type
of spot that needs to form for this ?

Small spots like this are not going to have an effect.

Larger spots have flares that generate X-rays, which strongly charge
particles in the atmosphere depending on the height above the earth
cause layers to have different dielectric constants, which in turn
refract the radio waves back to earth making long distance
communications possible.

Right now we have a sun generating a weak by comparison but steady
X-ray stream that is weakly charging the particles into ions in the
atmosphere so the daytime high frequency is not so good but night time
low band is very good with the mostly undisturbed earths magnetosphere.

--
Telamon
Ventura, California