Solar Facts and Space Weather
Look at for Aurora tonight and tomorrow at high latitudes! Yesterday’s coronal mass ejection (CME) is expected to sweep past Earth in the last half of today (March 16, 2013) sometime around 18UT (+- 7-8 hours). Forecasts are from minor to strong geomagnetic storms so we will have to wait and see. Nothing for folks [...]
A C-type CME was detected by STEREO-A COR2 at 5:39 UT on 11/10/2012. The estimated speed is ~900 km/s. Based on preliminary heliospheric modeling carried out at NASA GSFC Space Weather Research Center, it is estimated that the CME may impact Messenger on 11/11/2012 at 01:07 UT. Earth may experience a possible glancing blow from [...]
A CME is coming our way! A slow (only ~570 km/s Type-C), faint CME was detected by LASCO and STEREO around 15:24 UT 11/09/2012 and it is heading in the direction of Earth. Computer models indicate that the leading edge will reach Earth 11/12/2012 around 23:00 UT (+-7 hrs). The impact is expected to be [...]
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, [...]
Sunspot group, AR11429 (Active Region), is at it again. When it first began its journey across the Earthward side of the Sun it released an M-class flare, an X-class flare and several more M flares, along with several CMEs. Early on March 7, 2012 (00:24 UT) it erupted with an X5.4 flare, a coronal wave [...]
![Trajectory_AsOf20111212[1]](http://www.thesuntoday.org/thesuntoday/wp-content/uploads/2011/12/Trajectory_AsOf201112121-150x150.png)
UPDATE: Lovejoy survived despite most predictions to the contrary! Check the videos below. A sungrazing comet called Lovejoy is near what will surely be its end. Sungrazers melted by the Sun is not really new. In fact, SOHO has become the most prolific comet observer at over 2000 and counting. But what makes this special [...]
A spectacular filament eruption from June 7, 2011 captured by the STEREO Ahead spacecraft with EUVI 304, Cor1 and Cor2. Happy Birthday STEREO!! October 26 ,2011 is the 5th anniversary of the launch of the STEREO mission and its 2 spacecraft. The STEREO Mission (Solar TErrestrial RElations Observatory) was launched at 1:52 am [...]
At 01:50 UT, sunspot group, AR11283, produced an M5 solar flare and CME (coronal mass ejection) from near the center of the solar disk. The CME appears to be moving at an angle away from a path straight towards us. This means that while we may experience some impact its effects will be much [...]
Well, it has been a fairly quiet couple of weeks since all the activity at the beginning of the month. Early in the morning of 28 August 2011, a small filament erupted with an associated B-class solar flare. Here is the event as observed by SDO/AIA in three wavelengths (171,193 and 211 Angstrom) along with [...]
