Solar Facts and Space Weather
21:21 UT (5/23/2013) - Proton levels the eruption are still at the S2 NOAA alert level, down from S3. The particles are very apparent in SOHO/LASCO C2, showing up as “snow” on the images. 1:17 UT (5/23/2013) – Currently, a S2 level (scale of 1-5) proton is in effect as a result of the eruption. 19:20 [...]
16:16 UT - NASA SWRC simulations indicate that the leading edge of the CME will reach Spitzer at 2:56 UT 5/19/2013 and Earth at 11:59 UT 5/19/2013 (+- 7 hrs). Roughly estimated expected maximum Kp index is 5-6 (minor to moderate). 14:30 UT – Initial estimates for the CME speed are ~1200 km/s. A detailed computer [...]
Wiggly Jiggly Loops by 4 flares from an evolving sunspot AR11748 showed us some exciting yet basically benign activity. A little image processing helps us really see certain aspects of the activity. Keep an eye out for wiggling loops set in motion by the eruptions (from the X flares – all 4 are in the [...]
The active region that could, has again given us an X flare! That makes 4! 12:15 UT – The NASA GSFC Space Weather Research Center has estimated that the CME may give a glancing blow to Epoxi (~5/18/2013 06:00 UT) and hit Spitzer (~5/17/2013 00:30 UT plus minus 7 hours). There is also a small chance [...]
The unnamed region on the east limb has produced a 3rd X-class flare! (Updated) 11:44 UT – The NASA GSFC Space Weather Research Center has estimated that the CME will merge with CMEs associated with the 2 X-flares (X1.7 and X2.8) and may give a glancing blow to STEREO B (~05/15/2013 18:00 UT) and Epoxi (~05/16/2013 00:00 UT) and hit [...]
Larger than the First! – (Update) In less than 24 hours, the active region about to rotate into view has produced another X-class solar flare. 19:15 UT - The NASA GSFC Space Weather Research Center has estimated that the CME may give a glancing blow to STEREO B (~05/15/2013 18:00 UT) and Epoxi (~05/16/2013 00:00 UT) and [...]
A new active region peaking around the edge of the sun released an X-class solar flare At 2:17 UT or 10:17 pm EDT, an active region that has not yet rotated into view produced an X1.7 solar flare on May 13, 2013 (UT). This is the first X-flare of the year. The flare producing eruption [...]
Two solar filaments lifted off the sun in beautiful eruptions on January 23, 2013. Both eruptions produced coronal mass ejections or CMEs observed with the SOHO LASCO C2 coronagraph at 3:12 UT and 14:12 UT respectively. The first eruption off the southeast solar disk produced a CME headed away from Earth towards the [...]
A total eclipse of the Sun will be visible on November 13/14, 2012 in a narrow path across the southern hemisphere. The Moon’s umbral shadow starts in northern Australia following a path across the South Pacific Ocean without crossing any other land. A partial eclipse produced by the shadow covers a much larger area [...]
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 [...]
