MM#009 Default Target

Max Millennium Chief Observer mmchiefobserver at gmail.com
Wed Apr 21 01:41:10 MDT 2021


Dear Collaborators,

NOAA 12817 was the source of numerous B-class flares as well as
two C-class flares (C1.9 and C1.5) in the past 24 hours. 12817 has
been designated as a beta/D-type region, with increasing its sunspot
area and number of spots. Today the target will switch to this region
that continues to show flux emergence. Further B-class activities are
expected and additional low C-class events are very likely when 12817
rotates to the west limb.

The position of NOAA 12817 on April 21 at 03:30 UT is:

N18W64 (817", 329")

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,

Ying Li (Purple Mountain Observatory)


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