Here are today’s solar images taken from Al Sadeem Observatory, March 29, 2021.
The sky was mostly clear with intermittent moderate to fresh breeze which provided good transparency but average to poor seeing at the time these images were taken.Â
AR2811 has completely disintegrated into plage. On the other hand, AR2812 (Hro/beta) exhibited some umbral growth on its bipolar spots but remained magnetically simple and currently inactive. No significant flaring activity was recorded over the past 48 hours. The latest sunspot number (based on visual count and Wolf number calculation) is 12.Â
Other solar features observed were few short mound filaments across the Sun’s disk especially at the SE quadrant, small enhanced plages associated with former AR2811 and AR2812, as, well as several non-Earth directed plasma ejections including few huge eruptive prominences at the opposite (NW and SW) limb, 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 mainly from AR2812. 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 (4:35 PM – 5:00 PM, March 29, 2021, from NCM Al Wathba Station):
Average Temperature: 29.23°C
Average Humidity: 28.67%
Average Wind Speed and Direction: 26.4 kph from NNW
Average Cloud Cover: 0%
Average Air Pressure: 1001.73 hPa
Average Solar Radiation: 334.0 W/m^2
