Here are today’s solar images taken from Al Sadeem Observatory, June 26, 2021.
The sky was generally clear with light to moderate breeze which provided good transparency and seeing at the time these images were taken.
AR2833 which is now behind the NW limb produced a non-Earth-directed isolated C-class solar flare. On the other hand, the lone visible bipolar sunspot group AR2835 (Dso/beta) continues to gradually grow in structure, doubling in coverage area, while crackling with a couple more minor B-class solar flares over the past 24 hours. The latest sunspot number (based on visual count and Wolf number calculation) is 18.
Other noteworthy solar features observed were remnant enhanced plages with elongated stable filaments within former sunspot groups AR2831 and AR2832, also the ones associated with AR2835, and mostly moderately huge eruptive prominences at the limbs, as distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to be at low levels with chances of solar flares of mostly B-class to possibly isolated C-class intensity, mainly from AR2835 in the next few days. 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 (5:30 PM – 6:00 PM, June 26, 2021, from NCM Al Wathba Station):
Average Temperature: 44.67°C
Average Humidity: 8.67%
Average Wind Speed and Direction: 17.03 kph from various directions
Average Cloud Cover: 0%
Average Air Pressure: 988.0 hPa
Average Solar Radiation: 153.67 W/m^2