#sunspot

ramnath@nerdpol.ch

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CHAIN REACTION ON THE #SUN: A magnetic filament connected to #sunspot AR3229 erupted on Feb. 24th (1949 UTC), producing a chain reaction of events. First, the filament sliced through the sun's atmosphere:

Its liftoff destabilized the sunspot, sparking a long duration M3-class #solar #flare (2030 UTC). The flare, in turn, ionized the top of Earth's atmosphere, blacking out shortwave radio transmissions around the Pacific Ocean

https://spaceweather.com/

ramnath@nerdpol.ch

felt this one
#X-ray #SolarFlares
6-hr max: M1 0721 UT Dec01

#SUNSPOT #ALERT: A new sunspot is emerging over the sun's southeastern limb, and it appears to be a big one. Got a solar telescope? Point your optics here.

#MARS CLOSEST APPROACH TO #EARTH: Today, Mars makes its closest approach to Earth for all of 2022. Look east after sunset. The planet is shining brightly in the constellation Taurus; its rusty-red color is unmistakable: sky map.

Although today is the date of closest approach, the real show happens one week from today. On Dec. 7-8, there's going to be a beautiful lunar occultation of Mars:

https://spaceweather.com/

ramnath@nerdpol.ch

enter image description here

You know a #sunspot is big when you can see it in the #sunset. At the end of the day on Oct. 5th, Radu Anghel photographed AR3112 from #Bacau, #Romania:

"What a wonderful view," says Anghel. "Clouds crossing the solar disk made it look like a big Jupiter with sunspots! :)"

AR3112 is one of the biggest sunspots in years. With more than a dozen dark cores scattered across 300,000 km of solar terrain

https://spaceweather.com/