Here are today’s solar images taken from Al Sadeem Observatory, April 13, 2021.
The sky was partly cloudy with intermittent moderate to fresh breeze which provided average to poor transparency and seeing at the time these images were taken.
The newly designated sunspot group AR2814 (Modified Zurich/Mcintosh sunspot configuration: Cao/beta) exhibited some consolidation and slight growth on its leader spot and produced multiple B-class solar flares, as recorded by space agencies over the past 24 hours. The latest sunspot number (based on visual count and Wolf number calculation) is 14.
Nothing much significant going with the Sun except were the enhanced plage associated with AR2814, and a moderately huge eruptive hedgerow prominence especially at the NE limb, as distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to be at low levels with chances of solar flares of up to B-class (possibly up to isolated C-class) intensity, mainly from AR2814. Close monitoring is being conducted by numerous space weather agencies for any significant development.
Equipment used are Skywatcher 120mm refractor telescope with Baader filter and unmodified Canon EOS 1D Mark IV DSLR camera for visible imagery. For H-alpha imagery, the equipment used are Lunt 60mm H-alpha solar telescope, and QHYCCD 290III mono camera; all mounted on Skywatcher EQ6 pro mount Pre-processing of visible solar images was performed in PIPP, stacking in Autostakkert, slight wavelet adjustments in Registax 6, and post-processing in Adobe Photoshop CC.
*TECHNICAL REPORTS COURTESY OF SOLAR INFLUENCE DATA CENTER (SIDC), NOAA-SPACE WEATHER PREDICTION CENTER (NOAA-SWPC)
Weather Data (5:00 PM – 5:30 PM, April 13, 2021, from NCM Al Wathba Station):
Average Temperature: 36.63°C
Average Humidity: 12.67%
Average Wind Speed and Direction: 29.77 kph from NNW
Average Cloud Cover: 55%
Average Air Pressure: 999.0 hPa
Average Solar Radiation: 169.67W/m^2
