Jeddah Astronomy Society: Two sunspots will return to the forefront within 48 hours

Engineer Majed Abu Zahra, head of the Jeddah Astronomical Society, announced new developments in solar activity. Satellite images specializing in solar monitoring revealed that the remnants of two old sunspot regions, numbered 4294 and 4296, are currently located behind the southeastern edge of the sun's disk. Abu Zahra predicted that these two spots will gradually reappear in Earth's field of view over the next 48 hours, as a result of the sun's continued rotation on its axis.

History of solar activity of the two spots

The president of the Astronomical Society explained that these two active regions were last observed on December 12th, when they were in direct opposition to Earth. During that period, the two spots exhibited significant activity, including several low- and medium-intensity solar flares, but they did not produce any severe X-Class solar events, which typically raise concerns among scientists about their potential impact on technological infrastructure.

The context of the solar cycle and space weather

This observation comes at a time when the Sun is experiencing increased activity during its current solar cycle (cycle 25), with sunspots being a key indicator of the star's magnetic activity. Sunspots are dark areas on the Sun's surface that are cooler than the surrounding areas due to the concentration of strong magnetic fields that prevent heat from escaping. Monitoring these spots is vital for understanding "space weather," which can affect satellites, communication networks, and even Earth's power grids in the event of powerful solar storms.

Potential impact on Earth

Regarding potential risks, Abu Zahra noted that recent monitoring data is reassuring so far, as no large coronal mass ejections (CMEs) have been recorded beyond the southeastern edge of the sun in recent days. This absence of large ejections significantly reduces the likelihood of direct impacts or strong geomagnetic storms affecting near-Earth space weather once these regions reappear.

However, Abu Zahra stressed that caution and continuous monitoring are essential, emphasizing that sunspots do not necessarily lose their activity simply by temporarily disappearing behind the rotating solar disk. These regions can resume producing flares and solar emissions upon reappearing, depending primarily on the complexity of their magnetic structure and whether they have retained their potential energy.

Modern monitoring techniques

The head of the Jeddah Astronomical Society concluded his remarks by highlighting the technologies used in this observation, explaining that the current solar view is based on high-resolution images captured by NASA's Solar Dynamics Observatory (SDO), specifically in the 171 angstrom wavelength range. This wavelength is designed to highlight the hot plasma in the solar corona, giving scientists exceptional ability to track the evolution of active regions and complex magnetic structures with high precision, allowing them to assess any potential resurgence in solar activity and observe its effects on the space environment surrounding Earth.