[SFDXA] Strange ring shaped sunspot
Bill
bmarx at bellsouth.net
Wed May 26 14:50:50 EDT 2021
From Tony N2MFT:
*DENSE CME IMPACT:* A CME just hit Earth's magnetic field, around 1250
UT on May 26th. The solar storm cloud abruptly doubled
<https://spaceweather.com/images2021/26may21/impactdata.png> the density
of the solar wind near Earth (from 10 to 20 protons/cc). It is too soon
to know if a geomagnetic storm will develop as a result of the CME's
arrival. Stay tuned for updates. *Aurora alerts:* SMS Text
<https://spaceweatheralerts.com/>.
*TOTAL LUNAR ECLIPSE: *There was a lunar eclipse earlier today. The full
Moon passed through the shadow of Earth and, for 14 and a half minutes,
became the color of a sunset. Christopher Go photographed totality from
Cebu City, Philippines:
<https://spaceweathergallery.com/indiv_upload.php?upload_id=174773>
"This is how the Moon looked through my Stellarvue SV70 refractor," says
Go. "It's the best totality I have ever captured!"
Browse the gallery for more views from around the world:
Realtime Eclipse Photo Gallery
<https://spaceweathergallery.com/eclipse_gallery.html>*
Free:* Spaceweather.com Newsletter <https://spaceweather.com/services>
*STRANGE RING-SHAPED SUNSPOT: *A new sunspot is emerging west of AR2824,
and it's a little strange. The ring-shaped active region is inset in
this magnetic map from NASA's Solar Dynamics Observatory:
<https://spaceweather.com/images2021/25may21/latest_4096_HMIBC_lab2_crop.jpg>
Not only is the sunspot's shape unusual, but also its magnetic field.
Usually the magnetic poles of sunspots are aligned roughly east-west
<https://www.tcd.ie/Physics/people/Peter.Gallagher/lectures/PY4020/lecture05_solar_activity.pdf>.
AR2824 (-/+) is a good example. But the poles of the new sunspot are
rotated ~90 degrees from normal, almost perpendicular to the sun's equator.
This new sunspot is worth monitoring. Amateur astronomers with
safely-filtered telescopes, you know what to do!
Spaceweather.com
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