Sun TRACE photo chromosphere_FEA

Aurora Chance Tonight Aug. 7-8 / See It Rain Plasma On The Sun

Just in time before the moon thickens and brightens the sky, there’s a chance for a G1 (minor) geomagnetic storm tonight. The last solar blast — a G2 or moderate storm — occurred on August 2-3 and sparked a very attractive display in the lower half of the northern sky seen from the northern U.S. and Canada.…
Read More

Another look at the stronger of the two flares but in a different wavelenght of ultraviolet light shows an interesting double-loop structure. Credit: NASA

Departing Sunspot Group Delivers Biggest Flare Of Year

Side-by-side sunspot groups 2565 and 2567 erupted twice with powerful flares overnight. The first occurred at 9:11 p.m. (Central Daylight) yesterday evening and the second at 12:15 a.m. this morning. Both were M-class or moderate intensity, but the second, rated at M7.6,  verged on strong and proved to be the most powerful flare yet of…
Read More

Credit: NASA/SDO

Big Sunspot Group Heats Up

(Update: The aurora’s active tonight. Not a big storm, but if you live in the northern U.S. and the sky’s clear, head out for a look. A G1 storm (Kp=5) is underway with arcs and faint rays low in the northern sky. The activity, spawned by a coronal mass ejection (CME) from the sun earlier…
Read More

Sun SDO April 18

Big Sunspot Bows Out With A Bang

Giant sunspot 2529 has provided a lot of entertainment this past week for solar observers. Several times the diameter of the Earth, the sunspot was easily visible through a #14 welder’s glass and a stunning sight through even the smallest telescopes. Most beginners think of telescopes as night sky instruments only, but they’re just as…
Read More

Sun SDO combo UV Dec28_2015FEA

Aurora May Drop By Your New Year’s Eve Party

Big sunspot group 2473 cut loose a long-lasting M-class flare earlier today. The explosion produced a fast-moving bubble of plasma directed toward Earth. Plasma, a hot mix of negatively-charged electrons and positively-charged ions (atoms that have lost an electron) may look like a gas but it behaves differently enough to be considered its own state of…
Read More