SUNSPOT MONITORING – MAY 21, 2019

Here is the recent white-light solar imagery taken (through a brief sky opening) from Al Sadeem Observatory, May 21, 2019.

The sky was mostly cloudy with intermittent light to moderate winds which provided average to poor 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.

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, 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 (6:10 PM – 6:20 PM, May 21, 2019):

Average Temperature: 33°C

Average Humidity: 48%

Average Wind Speed and Direction: 17 kph from NW

Average Cloud Cover: 75%

Average Air Pressure: 998.98 hpa

Average Solar Radiation: 88.15 W/m^2

Average UV Radiation: 40 µW/m^2 (low)

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