Here are today’s solar images taken from Al Sadeem Observatory, February 13, 2021.
The sky was partly cloudy with intermittent light to moderate breeze which provided average to poor transparency and seeing at the time these images were taken.
The Sun remains spotless and very low solar activity has prevailed on its 9th consecutive day. 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 sunspot groups, the Sun exhibited some huge eruptive prominences at the limbs, especially the ones at the northeastern limb, and some shallow elongated filaments at the Sun’s southeastern quadrant, as well as the remnant plage of the undeveloped active region also at the southeastern quadrant as distinctively captured in H-alpha imagery.
Space weather agencies* forecast solar activity to be at very low levels with chances of solar flares of 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. For H-alpha imagery, the equipment used are Lunt 60mm H-alpha solar telescope, and QHYCCD 290III mono camera; all mounted on Skywatcher EQ6 pro mount 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 (4:30 PM – 5:00 PM, February 13, 2021, from NCM Al Wathba Station):
Average Temperature: 25.67°C
Average Humidity: 43.33%
Average Wind Speed and Direction: 18.83 kph from NNW
Average Cloud Cover: 70%
Average Air Pressure: 1004.47hPa
Average Solar Radiation: 220.67 W/m^2
