SUNSPOT MONITORING – APRIL 7, 2020

SUNSPOT MONITORING – APRIL 7, 2020

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Here are today’s solar images taken from Al Sadeem Observatory, April 7, 2020.

The sky was generally clear with intermittent light to moderate winds which provided good to average transparency and seeing at the time these images were taken.

Despite having lost its sunspot structure, former AR2759 has produced few B-class solar flares yesterday, as per space weather agencies records. The latest sunspot number (based on visual count and Wolf number calculation) is 0. The small disintegrating enhanced plage with a short stable filament associated with the former AR2759, together with few tiny quiescent prominences at the limbs were distinctively captured in H-alpha imagery.

Space weather agencies* forecast solar activity to remain at low levels with chances of weak X-ray fluxes or flares ranging up to B-class intensity, mainly from former AR2759. 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 QHYCCDIII mono 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 – 5:25 PM, April 7, 2020, from NCM Al Wathba Station):

Average Temperature: 33.4°C

Average Humidity: 11.33%

Average Wind Speed and Direction: 17.63 kph from NW

Average Cloud Cover: 0%

Average Air Pressure: 1000.77 hPa

Average Solar Radiation: 228 W/m^2

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