Here are today’s solar images taken from Al Sadeem Observatory, June 1, 2021.
The sky was generally clear with moderate breeze which provided good transparency but average seeing at the time these images were taken.
Solar activity is at very low levels over the past 48 hours. AR2827 (Csi/beta) exhibited scattered growth on its trailer spots and expanded in coverage area; produced a minor C1.0-class solar flare in the early morning of this day. On the other hand, AR2828 has decayed into plage. Meanwhile, a new sunspot region has recently rotated into Earth-view from the SE limb (to be designated as AR2829), and another small one popping out at the NW quadrant but has been disintegrating shortly after. The latest sunspot number (based on visual count and Wolf number calculation) is 30.
Enhanced plages associated with the upper-mentioned sunspot groups, some huge eruptive prominences especially at the SW limb, as well as few short stable filaments at the extreme northern and southern hemispheres, were the other noteworthy solar features distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to remain at low levels with chances of solar flares of mostly B-class to C-class intensity in the next few days, mainly from AR2827. 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 (5:20 PM – 5:40 PM, June 1, 2021, from NCM Al Wathba Station):
Average Temperature: 40.93°C
Average Humidity: 21.33%
Average Wind Speed and Direction: 19.8kph from WNW
Average Cloud Cover: 0%
Average Air Pressure: 990.0 hPa
Average Solar Radiation: 233.33 W/m^2