Contains:  Solar system body or event
The Sun in Ha on 2014-Sept-13 Showing the AR 12158 Still Emitting a Flare C1.5, Fernando

The Sun in Ha on 2014-Sept-13 Showing the AR 12158 Still Emitting a Flare C1.5

The Sun in Ha on 2014-Sept-13 Showing the AR 12158 Still Emitting a Flare C1.5, Fernando

The Sun in Ha on 2014-Sept-13 Showing the AR 12158 Still Emitting a Flare C1.5

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Description

The view of the Active Region 2158 is very impressive, even it has been slowly decaying. It was one of the regions resposnsible for the huge CME happened two days ago. It still poses a threat for a Class-M event.

New spot growth can be observed from the next image, but so far this region remains calm.

The third image is a typical pair of spots forming and growing. It's worth to keep an eye on them.

The seeing was ordinary 3/5, that quickly degraded and determined the end of the session.

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Histogram

The Sun in Ha on 2014-Sept-13 Showing the AR 12158 Still Emitting a Flare C1.5, Fernando