Solar Facts and Space Weather
Two CMEs (Coronal Mass Ejections) occurred in the early hours of November 8, 2012 (UT), the later one a more significant, O-type CME. The 2 CMEs are denoted with red arrows in this snapshot from the NASA Space Weather Research Center (SWRC) CME propagation computer model. The first C-type CME was detected by SOHO LASCO C2, SOHO [...]
Two new active regions could bring solar activity, one numbered (AR11589) and one not yet on the solar disk. Based on recent activity M class flares are possible from both. The region just over the limb produced an M1 flare at 5:04 UT. Geomagnetic activity continued last night with many aurora reports. Pilot Matt [...]
At 17:40 UT, the Sun produced a C2 solar flare with a radio burst and a SCORE-C CME. NASA Goddard Space Weather Center predicts it will reach Earth 4/27/2012 at 5:49 UT with only minor impact. Currently, there is a small geomagnetic storm underway so those at high latitudes have a chance for Aurorae.
Sunspot group or active region AR11429 has almost rotated out of view but it still had enough energy to release an M7.9 X-ray solar flare, a fast coronal mass ejection (CME) and a solar energetic particle event (SEP). A geomagnetic storm due to a glancing blow from the CME is expected early March 15, [...]
CMEs are on their way to us! Estimated impact is March 11, 2012 around 2-3 PM EDT. High latitude aurora watchers keep lookout the night of March 11, 2012. On March 10, 2012, the sun produced 1 C-class flare and 2 M-class flares along with 2 Earth directed coronal mass ejections (CMEs). The [...]
Sunspot group, AR11429, started off its journey across the Earth facing side of the Sun with several bangs. First it produced an M flare on March 2 at 17:29 UT (with a CME) then came another M flare (with a CME) at 10:29 on March 4 followed and X flare with CME early on March [...]
Sunspot group AR11429! Here is a look at AR11429 from Friday to today showing the 2 M-class and 1 X-class flare blasting away from the Sun. In addition to those events and their associated CMEs there is a lot of activity from the active region and the area surrounding it. This video is a composite [...]
Ten years ago yesterday (5 February 2002) saw the launch of the Reuven Ramaty High-Energy Solar Spectroscopic Imager, or RHESSI (pronounced reh-see). RHESSI was designed to study particle acceleration and energy transport during solar flares by observing the highest energy X-rays and gamma-rays. These X-rays and gamma-rays are produced when particles (electrons and protons) are [...]
Solar Activity Solar activity was at low to moderate levels, with occurrences of several C-class flares and three M class flares (see the list below). Quite a few slow to moderate CMEs were detected emanating from different regions of the Sun (some of them are listed below) throughout this week. Flares (M class and above): [...]
Sunspot group AR11339 (AR stands for Active Region) has just rotated onto the Earth facing disk of the Sun. Before coming completely into view the region had produced two M flares in 24 hours (an M4.3 flare on 2-Nov-2011 at 21:52 UT and an M2.5 flare on 3-Nov-2011 at 10:58 UT). Here [...]
