Here are today’s solar images taken from Al Sadeem Observatory, June 25, 2021.

The sky was mostly clear with moderate to fresh breeze which provided average to poor transparency and seeing at the time these images were taken.

AR2833 (Hsx/alpha) is about departing from Earth-view towards the NW limb. Meanwhile, a new bipolar sunspot group has rotated into Earth-view from the SE limb and was designated as AR2835 (Bxo/beta). Both sunspot groups generated a few weak isolated B-class solar flares over the past 24 hours which were all non-geoeffective. The latest sunspot number (based on visual count and Wolf number calculation) is 24. 

Other noteworthy solar features observed were disintegrating plages near AR2833, remnant enhanced plages of former recurrent sunspot group AR2831 and AR2832 near the NE and SE limbs, also the ones associated with AR2835, some short stable filaments across the Sun’s disk, and mostly small quiescent 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 AR2833 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.


Weather Data (5:30 PM – 6:00 PM, June 25, 2021, from NCM Al Wathba Station):

Average Temperature: 41.23°C

Average Humidity: 25.33%

Average Wind Speed and Direction: 24.73 kph from NNW

Average Cloud Cover: 10%

Average Air Pressure: 988.77 hPa

Average Solar Radiation: 150.9 W/m^2

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