Here are today’s solar images taken from Al Sadeem Observatory, September 11, 2018.
The sky was clear with light air turbulence making the seeing and transparency good at the time these images were taken.
AR2721 has decayed completely into a plage; reported to have produced a weak A-class flare. Meanwhile, a wide region of spots is emerging and growing at the encircled location; expected to be designated as a new active region in the next few hours and will be closely monitored on its development and its potential effects in solar activity in the next few days. The latest sunspot number (based on visual count and Wolf number calculation) is 5. Few eruptive prominences at the limbs and plages associated with former AR2721 and the developing new active region were distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to remain at very low levels with chances of weak X-ray fluxes or flares ranging up to B-class intensity. The extent of the frequency and intensity of the Sun’s activity will highly depend on the magnetic flux fluctuations happening in the visible ARs in the coming days. Close monitoring is being conducted by numerous space weather agencies for any significant development.
*Technical reports courtesy of Solar Influence Data Center (SIDC), NOAA-Space Weather Prediction Center (NOAA-SWPC)