SUNSPOT MONITORING – SEPTEMBER 11, 2019

SUNSPOT MONITORING – SEPTEMBER 11, 2019

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Here are today’s solar images taken from Al Sadeem Observatory, September 11, 2019.

The sky was mostly clear (few cirrus clouds present) with intermittent light to moderate winds which provided average seeing and transparency at the time these images were taken.

Solar activity remains at very low levels over the past 24 hours. No active sunspot regions currently exist on the Sun’s visible disk. No significant flaring activity was recorded. The latest sunspot number (based on visual count and Wolf number calculation) is 0.  Not much happening on the Sun lately except for few tiny quiescent prominences at the limbs as distinctively captured in H-alpha imagery which generally indicates the Sun’s current generally quiet state at the moment.

Space weather agencies* forecast solar activity to remain at very low levels with chances of weak X-ray fluxes or flares ranging up to B-class intensity. 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 and Lunt H-alpha solar telescope and ZWO120MM CMOS camera for H-alpha imagery, mounted on Skywatcher EQ6 Pro. 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 (5:35 PM – 5:50 PM, September 11, 2019):

Average Temperature: 37.1°C

Average Humidity: 52%

Average Wind Speed and Direction: 24.5 kph from N

Average Cloud Cover: 25%

Average Air Pressure: 991.3 hpa

Average Solar Radiation: 60.7 W/m^2

Average UV Radiation: 45 µW/m^2 (low)

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