MM#003 Major Flare Watch

Max Millennium Chief Observer mmchiefobserver at gmail.com
Sat Apr 20 10:48:12 MDT 2024


Dear Collaborators,

Solar activity is at a low-to-moderate level. Target region NOAA 13647
Has remained stable in terms of sunspot area and number of spots since
the last message, but has increased in primary spot separation while
remaining classified as a beta/D-type sunspot group. This region has
decreased in flaring activity, producing only a C2.5 on 20-Apr-2024
at 04:38 UT in the period. The most flaring region was instead NOAA
13638 (a beta/C-type sunspot group) that is located extremely close
to NOAA 13647 (and 13645). NOAA 13638 produced eight C-class flares,
the largest of which was a C4.8 on 20-Apr-2024 at 00:57 UT (also the
largest in the period). The MM#003 Major Flare Watch will continue
for a possibly final 24 hours. Further C-class flares are expected
over the following 24-hour period, with a chance for M-class flares.

The position of NOAA 13647 on 20-Apr-2024 at 15:30 UT is:

S13W09 , ( 146", -132" )

See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.

Regards,

Shaun Bloomfield (Northumbria University)


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