SUNSPOT MONITORING – OCTOBER 11, 2019

SUNSPOT MONITORING – OCTOBER 11, 2019

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

The sky was mostly clear 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. Despite the absence of any visible sunspot groups, the Sun exhibited some minor prominence activities (most quiescent ones with the exception of a huge eruptive one (about 60,000km high) at the northeastern limb) and tiny enhanced plage at the southwestern portion of the Sun’s disk as distinctively captured in H-alpha imagery.

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 (5:00 PM – 5:15 PM, October 11, 2019):

Average Temperature: 36.4°C

Average Humidity: 39%

Average Wind Speed and Direction: 18.4 kph from NW

Average Cloud Cover: 5%

Average Air Pressure: 998.1 hpa

Average Solar Radiation: 91.75 W/m^2

Average UV Radiation: 45 µW/m^2 (low)

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