SUNSPOT MONITORING – DECEMBER 8, 2020

Here are today’s solar images taken from Al Sadeem Observatory, December 8, 2020.

The sky was partly cloudy with intermittent moderate breeze which provided average transparency and seeing at the time these images were taken.

Solar activity was at low levels over the past 24 hours. AR2791 (Axx/alpha) exhibited further shrinkage on its leader spot as well and it was inactive. On the other hand, AR2790 (Hsx/alpha) experienced minuscule to no change on its leader spot. Space weather agencies recorded Earth-directed moderately strong C7.4-class solar flare followed by a CME yesterday evening, December 7, 2020. Its potential impacts on geomagnetic activity, in the next few days, are being monitored.  The latest sunspot number (based on visual count and Wolf number calculation) is 22.
Other noteworthy solar features observed were few quiescent and moderately huge eruptive prominences mostly at the opposite  (northeastern and southwestern) limbs, some weak magnetic enhancements in AR2790 and AR2791, and some elongated eruptive filaments, and plages across the solar surface as distinctively captured in H-alpha imagery.

Space weather agencies* forecast solar activity to be at low levels with chances of solar flares from B-class up to C-class intensity, mainly from AR2790. 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 (4:30 PM – 5:00 PM, December 8, 2020, from NCM Al Wathba Station):

Average Temperature: 24.27°C

Average Humidity: 42.67%

Average Wind Speed and Direction: 23.73 kph from WNW

Average Cloud Cover: 30%

Average Air Pressure: 1007.4 hPa

Average Solar Radiation: 99.33 W/m^2

   

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