MM#009 Default Target

Max Millennium Chief Observer mmchiefobserver at gmail.com
Mon Apr 19 10:06:28 MDT 2021


Dear Collaborators,

The largest X-ray event since the last message was a B6.9 flare
at 04/19/07:44 UT produced by the south-east limb region (S18E88)
mentioned in the last message. This region is too close to the limb
to obtain its magnetic configuration. Today the target region remains
to be NOAA 12816 that has a beta/C-type sunspot group with increasing
in the sunspot area and number of spots. 12816 was the source of six
low B-class flares (the largest one being a B3.8) during the period. It
continues to emerge opposite fluxes in its leading portion. There also
emerged a new region with some sunspots in the northwest quadrant
(N16W41, unnumbered yet) that has produced two ~B3 flares. More
B-class flares are expected with a chance of some C-class activities
in the next 24 hours.

The position of NOAA 12816 on April 19 at 15:30 UT is:

S25E25 (-367", -331")

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)


More information about the MMmotd mailing list