Another X class flare

For those of us who got rained on and never saw anything there was another
CME last night due to hit the earth late Friday/early Saturday "halloween
night" and is rated X11. I don't know how much smaller an X11 is from an
X17 (last nights) but it seems to be still in the "large" class. Can anyone
comment on what we might expect if the IMF is favourable ?

Taken from http://www.spaceweather.com/

"Meanwhile, another CME is heading our way. It was hurled toward Earth by
giant sunspot 486, which unleashed an X11-class solar flare at 2049 UT on
Oct. 29th. The fast-moving cloud could excite more auroras when it arrives
on or about Halloween"

Regards,
Paul

(remove "clouds" when replying)

On Thu, 30 Oct 2003 06:27:31 -0000, "Paul"
wrote:

For those of us who got rained on and never saw anything there was another
CME last night due to hit the earth late Friday/early Saturday "halloween
night" and is rated X11. I don't know how much smaller an X11 is from an
X17 (last nights) but it seems to be still in the "large" class. Can anyone
comment on what we might expect if the IMF is favourable ?


The experts will need to come in on this one - but thanks a lot for
the encouragement - I spent from 11pm to 1pm driving round South
Lancashire last night to try to get out from under an unbelievable
blanket of damp mist, which must have had its base at about 500ft! I
thought it might be pretty localised but never saw more than a few
breaks.

Observation report: Quite a bright, green glow near the horizon
back-lighting a cloud, glimpsed while travelling at 65 mph in the slow
lane of the M61, just north of Chorley.

Ah well, my first ever aurora.....

Paul
Leigh
Lancs

"Paul" wrote in message
...
For those of us who got rained on and never saw anything there was another
CME last night due to hit the earth late Friday/early Saturday "halloween


The SOHO website has some movies of these flares, the mpeg version of EIT195
looks really impressive.

http://sohowww.estec.esa.nl/

Can anyone tell me why in the new flare, the whole sun appears to light up
briefly (frame showing 29/10 20:02) just before the actual flare in the
20:46, is this an actual emission or an artifact of the instrument?

hasmac.

Paul Richardson wrote:


For those of us who got rained on and never saw anything there was another
CME last night due to hit the earth late Friday/early Saturday "halloween
night" and is rated X11. I don't know how much smaller an X11 is from an
X17 (last nights) but it seems to be still in the "large" class. Can anyone
comment on what we might expect if the IMF is favourable ?



Note sure yet - the forecasts aren't out yet (and I'm just out of bed
), if it points southward for an extended period again, we'll get a good
show.... more when it comes to hand.

Brian
http://groups.yahoo.com/group/auroralobserving/