SUNSPOT MONITORING – MARCH 16, 2019

SUNSPOT MONITORING – MARCH 16, 2019

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Here are today’s solar images taken from Al Sadeem Observatory, March 16, 2019.

The sky was mostly clear (slight haze) with light air turbulence which provided excellent seeing and good transparency at the time these images were taken.

The Sun still exhibits absence of any visible active sunspot regions as generally quiet solar activity has persisted over the past 24 hours. The latest sunspot number (based on visual count and Wolf number calculation) is 0.  H-alpha imagery revealed some other solar features including few filaments and scattered plages (in the eastern and western sides) across the solar disk at the Sun’s northern hemisphere, as well as some tiny quiescent prominences at the limbs.

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 (4:30PM – 4:45PM, March 16, 2019):

Average Temperature: 32.8°C

Average Humidity: 22%

Average Wind Speed and Direction: 15.5 kph from variable directions

Average Cloud Cover: 3%

Average Air Pressure: 1001.5 hpa

Average Solar Radiation: 286 W/m^2

Average UV Radiation: 540 µW/m^2 (low)

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