Big sunspot

[cycloneye]

Lets see if more of these events occur and if there is an effect on planet earth on the communications and weatherwise.Click the symbol on the left to see a closeup.

http://spaceweather.com/

[JonathanBelles]

Interesting! I'm just starting to learn about sunspots, so this new sunspot intrigues me.

[Aslkahuna]

Region 1045 is classified as a Dkc Beta Gamma group right now with an area of 250 millionths and probably will be an E group soon. The M4 event at 0235Z produced a mild SID with 30 MHz absorption noted on the HAARP Riometer.

Steve

[Aslkahuna]

The flare in region 1045 was, in fact a major flare (first of the cycle) being a M6.4/1N 170 sfu 10Flare followed by a full halo CME.

Steve

[Tom8]

http://www.solarmonitor.org/full_disk.p ... indexnum=1

M class flare



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

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
http://www.spacew.com/
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

PRELIMINARY DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY

07 FEBRUARY, 2010

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\

(Based in-part on SEC Data.)
(The final report will be released tommorrow.)


PRELIMINARY SOLAR & GEOPHYSICAL INDICES FOR 07 FEBRUARY, 2010
-------------------------------------------------------------

DRAO 10.7 cm Solar Flux at 18Z, 20Z, 22Z: N/A, N/A, N/A sfu.
Predicted Solar Flux for Next 3 Days: 92, 94, 94.
Average 90-day Solar Flux: 78.
Current Middle Latitude A-Index: 3
Current Boulder K-Indices: 1110 112*
Current Planetary K-Indices: 1000 011*
Boulder A-Index 3-Day Forecast: 10, 8, 8.
Planetary A-Index 3-Day Forecast: 10, 9, 8.


SYNOPSIS OF TODAYS ACTIVITY
---------------------------

Solar activity was high. Region 1045 (N23W01) produced
two M-class events during the past 24 hours. The first was a M1 at
06/2137Z and the second was a M6/1n at 07/0224Z. The soho/lasco C2
imagery observed a cme off the east limb with the first event and a
full halo with the second event. The M6 x-ray event had an
associated eit wave, and a tenflare of 170sfu. This region has
retained a magnetic beta-gamma configuration with a possible delta
magnetic configuration within its interior spots. A new region was
numbered today as region 1046 (N25E65).

Solar activity forecast: solar activity is expected to be low
to moderate with M-class events likely. There is a slight chance
for a X-class event from region 1045.

The geomagnetic field was quiet.

Geophysical activity forecast: the geomagnetic field is
expected to be unsettled with isolated active conditions for the
next three days (08-10 february) due to a recurrent coronal hole
high speed stream and cme effects.

Event probabilities 08 feb-10 feb

Class M 50/50/50
Class X 10/10/10
Proton 01/01/01
PCAF green

Geomagnetic activity probabilities 08 feb-10 feb

A. Middle Latitudes
Active 30/25/25
Minor storm 05/05/05
Major-severe storm 01/01/01

B. High Latitudes
Active 35/30/30
Minor storm 10/05/05
Major-severe storm 05/01/01


** End of Daily Report **

http://www.spacew.com/

[JonathanBelles]

Region 1045 is classified as a Dkc Beta Gamma group right now with an area of 250 millionths and probably will be an E group soon. The M4 event at 0235Z produced a mild SID with 30 MHz absorption noted on the HAARP Riometer.

Steve

English??

[brunota2003]

I understand 0% of that.

[Aslkahuna]

I would suggest reading the Spaceweather tutorials online if you are interested in Solar activity since there will be many more of these admittedly cryptic posts when the activity increases.

Sunspots are classifed according to appearance and magnetic complexity with the areas expressed in millionths of a Solar hemisphere.
A groups are simple unipolar groups usually small with no penumbra around the spot(s)
B groups are simple bipolar groups usually small with no penumbra around the spots
C groups are bipolar groups with penumbra around the leader and small intermediate spots
D groups are bipolar groups with intermediate spots and penumbra around the leader and main trailer spot
E groups are moderately large complex groups with penumbra with the leader, trailer and intermediate spots
F groups are very large complex groups with mixed penumbra throughout the group
H groups are unipolar spots with penumbra usually the decay remnants of E and F groups

They are also classed according to optical complexity with the D,E, and F kc groups being the most complex and compact (and most likely to produce major events).

Steve

[Aslkahuna]

Sunspot group polarity is determined by magnetogram observations and is expressed by the following convention

Alpha (α) Simple Unipolar
Beta (ß) Simple Bipolar
Gamma Complex mix of polarities in the intermediate portions of the group
Delta (δ) Two polarities in the same umbra.

At times, group rotation will bring the main region of trailer polarity ahead of the leader spots-this is a reverse polarity group and it usually happens with the larger ones. Reverse polarity groups with B-G-D polarites is a bomb ready to go off.

SID is a Sudden Ionospheric Disturbance-there's a whole bunch of these

Steve