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Monday, 28 October 2013

[BAA-ebulletin 00767] BAA Solar Section - Activity Warning

BAA electronic bulletin

Active Region 1882 has unleashed two X-class solar flares today.
AR1875 and AR1877 are also currently active. Observations/images are
requested in the coming days from these sunspot groups.
NOAA activity warning is produced below:

Solar activity is very high. New region NOAA 11882 in the SE produced
two X-class flares; an X1.7 at 07:53 UT and an X2.1 at 14:51 UT today.
It also produced two M-class flares.
Numerous C-class flares were observed from regions NOAA 11875 and 11882,
as well as a C1.8 from NOAA 11869 (N12 over the west limb) at 13:06 UT.
NOAA 11882 was too near the limb yesterday for a good determination of its
magnetic field configuration, but current SDO magnetograms show it as
beta-gamma-delta class. This region is expected to produce M-class flares
and an additional X-class flare is possible.
NOAA 11875 may produce an additional M-class event, but an X-class
flare seems less likely from this region. NOAA 11877 may produce
an M-class flare.
NOAA 11882, S08 E63 (X=-853,Y=-172). Beta-gamma-delta region.
NOAA 11875, N08 W33 (X= 523,Y= 64). Beta-gamma-delta region.
NOAA 11877, S12 W13 (X= 213,Y=-281). Beta-gamma region.

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(c) 2013 British Astronomical Association

Good Clear Skies
Colin James Watling
Various Voluntary work-Litter Picking for Parish Council (Daytime) and
also a friend of Kessingland Beach (Watchman)
Lyra Website:
Real Astronomer and head of the Comet section for LYRA (Lowestoft and
Great Yarmouth Regional Astronomers) also head of K.A.G (Kessingland
Astronomy Group) and Navigator (Astrogator) of the Stars (Fieldwork)

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