Here are today’s solar images taken from Al Sadeem Observatory, May 1, 2021.
The sky was mostly clear with intermittent light breeze which provided good transparency and seeing at the time these images were taken.
Further decrease in solar activity was observed over the past 24 hours with both decaying AR2818 (Hsx/alpha) and AR2820 (Axx/alpha) are approaching the SW limb. Solar flare activity remained only at weak A-class levels, as per the evaluation of space weather agencies. The latest sunspot number (based on visual count and Wolf number calculation) is 22.
Enhanced plages associated with the upper mentioned sunspot groups and few elongated eruptive filaments at the extreme southern hemisphere were the other notable solar features distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to be at very low levels with chances of solar flares of B-class to C-class intensity, mainly from the upper-mentioned active sunspot regions as they approach the SW limb. 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 (9:10 AM – 9:35 AM, May 1, 2021, from NCM Al Wathba Station):
Average Temperature: 30.15°C
Average Humidity: 32.0%
Average Wind Speed and Direction: 10.8 kph from S
Average Cloud Cover: 0%
Average Air Pressure: 999.5 hPa
Average Solar Radiation: 586.0 W/m^2