A partial solar eclipse will be visible across almost all of Algérie on Wednesday, occurring when the moon passes between the sun and the earth, totally or partially occulting sunlight. This celestial event, where the moon passes between the sun and the earth, will totally or partially occult sunlight, casting a shadow across the national territory. Observers are strictly forbidden from looking directly at the sun without adapted protection to avoid serious eye damage. Authorities have issued a stern warning that failure to use proper eye protection could result in irreversible eye lesions, emphasizing the critical need for safety during the phenomenon. It is strictly forbidden to observe the sun directly without adapted protection to avoid such severe and permanent eye damage.
Eclipse Visibility and Rates
The occultation rate of the solar disk, which indicates the percentage of the sun's surface covered by the moon, is projected to reach nearly 97% in Ténès during the eclipse. This high rate signifies a significant obscuration of the sun in that region. In the capital, Algiers, the occultation rate will be 96%, offering a similarly dramatic viewing experience. This rate is expected to decrease progressively towards the East and South of the country, meaning areas further from the northwestern coast will experience a lesser degree of solar coverage. For instance, regions in the far south and east will see a smaller portion of the sun obscured. Looking ahead, another partial eclipse is anticipated for Algeria on August 12, 2026. This future event will also feature a variable occultation rate depending on the specific region within the country, much like the upcoming eclipse.
Sirius Association's Initiatives
The Sirius astronomy association will organize a national observation event in Ténès as part of its summer camps program. This event aims to provide a safe and educational viewing experience for the public. The association has also launched an electronic site dedicated to the eclipse, developed in cooperation with CERIST Constantine. This digital platform provides full scientific explanations of solar eclipses, detailed eclipse schedules for various wilayas across Algeria, and an interactive map to assist observers in understanding the event's progression in their specific location. The electronic site is a valuable resource for anyone interested in learning more about the eclipse and planning their observation.
Sirius has dedicated a special issue of its scientific journal, 'Echihab El-Ilmi', to the celestial event, offering in-depth articles and analyses. Looking ahead, the association notes that while the partial eclipse anticipated for Algeria on August 12, 2026, will have a variable occultation rate by region, it will be total over a band crossing Greenland, Iceland, northern Spain, and Portugal. This information provides a broader astronomical context for the upcoming events. The national observation event in Ténès is specifically designed to allow participants in the summer camps program to safely witness this rare phenomenon.
Safe Viewing Practices
For safe viewing, it is recommended to exclusively use special eclipse observation glasses. These protective eyewear must conform to the international standard ISO 12312-2. This standard ensures the glasses filter out harmful ultraviolet, visible, and infrared radiation, protecting the eyes from potential damage during direct solar observation. Without such certified protection, looking at the sun, even during a partial eclipse, can cause severe and irreversible eye injuries. Public health authorities and astronomy associations consistently advise against using uncertified filters like ordinary sunglasses, smoked glass, or exposed film, as these do not offer adequate protection and can lead to permanent vision impairment. The ISO 12312-2 standard is specifically designed for direct solar viewing, providing the necessary level of optical density to safely observe the event without risking eye health.