Daily Archives: August 21, 2013

Sun Online. Solar activity. 21 of August 2013

Solar activity was eruptive with a C2.2 flare as strongest flare
originating from NOAA Active Region 1828. A faint partial halo Coronal mass ejection (CME) was observed around 5h00 UT. It seems to be associated to a small filament eruption. The CME seems to be travelling mainly to the east with a projected speed of 360 km / s. First
analysis suggests a possible arrival at 25 August at 9h UT, but this will
be further evaluated. Astronoms expect C-class flaring activity to continue. There
is a slight chance for M-class flares, especially from NOAA active regions
1820 and 1827 that currently have a beta-gamma configuration of their
photospheric magnetic field.
Unsettled geomagnetic conditions are expected to continue and return to quiet after 24 hours.

Local time:8/21/2013 at 13:11:25 Local time:8/21/2013 at 13:11:25 Local time:8/21/2013 at 13:11:25 Local time:8/21/2013 at 13:11:25

Equipment: Coronado 90 + SBIG 8300s + LX75
Processing: Photoshop
Date: 21/08/13
Time GMT: 21:30:00
Exposure 0.09 sec.

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