The Sun on February 17, 2013
The sun showed a more active face today, with prominences, spots, filaments, and even flares. AR 1675 is releasing M-Class flares, and we have been able to monitor the effects on the earth's magnetic field with the magnetometer I described in my post yesterday. Seeing was a little better today than lately, and was able to get some nice images with the PSTDS. I'll be in San Francisco next week, so this blog might be quiet for a few days--unless SF gets hit by a meteorite!
|A lovely, snaking, inverted filament|
|Another huge filament, with (unfortunately) some imaging artifacts|
|Filaments and bright spots. The bright area toward the bottom of the image is (I think) AR1675|
|An active sun|
|An inverted view of an active sun|
|AR1675(?) looking very bright to the left of center|