SUNSPOT MONITORING – SEPTEMBER 25, 2020

SUNSPOT MONITORING – SEPTEMBER 25, 2020

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Here are today’s solar images taken from Al Sadeem Observatory, September 25, 2020.

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

AR2773 was short-lived and had its sunspot structure mostly decayed over the past 24 hours leaving just its remnant plages and tiny pores. Generally, solar activity at this moment is minimal. No significant flaring activity was recorded. The latest sunspot number (based on visual count and Wolf number calculation) is 2. Other than that, not many significant going on with the Sun lately aside from few small quiescent prominences and some moderately huge ones at the limbs as distinctively captured in H-alpha imagery.

Space weather agencies* forecast solar activity to be at very low levels with chances of weak X-ray fluxes or flares up to B-class intensity, mainly from developing active region. 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 QHYCCD290III 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 (5:00 PM – 5:20 PM, September 25, 2020, from NCM Al Wathba Station):

Average Temperature: 37.63°C

Average Humidity: 30.33%

Average Wind Speed and Direction: 25.77 kph from NNW

Average Cloud Cover: 0%

Average Air Pressure: 994.07 hPa

Average Solar Radiation: 118 W/m^2

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