A rare celestial spectacle is scheduled for February 17, 2026, when an annular solar eclipse will form a dazzling “ring of fire” in the sky. The astronomical event will occur when Lua passes directly in front of Sol, but due to its distance from Terra, it will not be able to completely cover the solar disk, leaving its edges visible as a luminous ring.
This phenomenon will be visible in its entirety only in a narrow band that crosses the continent of Antártida, making its complete observation a logistical challenge for most enthusiasts. However, observers located in the extreme south of América of Sul, such as Argentine and Chilean Patagônia, and in southwestern parts of África, may witness a significant partial eclipse.
A remarkable coincidence marks this event: it will occur on the eve of the scheduled start of Ramadã, the holy month for Muslims. Essa overlapping an astronomical event with an important religious date adds a layer of cultural interest to the phenomenon, which will be followed by communities in different parts of the world.
What is an annular solar eclipse?
Unlike a total solar eclipse, where the Lua completely blocks the light from the Sol and plunges the day into momentary darkness, the annular eclipse happens as a matter of perspective and distance. The Este event occurs when the Lua is at its apogee, the furthest point of its elliptical orbit in relation to the Terra. Nessa position, its apparent size on the sky is slightly smaller than that of Sol.
When the alignment between Sol, The result is the vision of a glowing ring, popularly known as the “ring of fire”. The sunlight that outlines the lunar silhouette is still extremely intense, which requires extra care for safe observation, as the solar corona, visible only in total eclipses, remains obscured by the brightness.
Trajectory and visibility of the phenomenon
The main trajectory of the ring of fire, known as the path of annularity, will pass almost exclusively over Antártida. Essa inhospitable region will be the only place on the planet where the phenomenon can be seen in its complete form, with the perfect formation of the ring of light around Lua.
For the remainder of Hemisfério Sul, the experience will be that of a partial eclipse. Cidades to the south of Argentina and Chile, like Ushuaia and Punta Arenas, will have a prime view, with a considerable portion of Sol being obscured by Lua during the peak of the event.
On the African continent, visibility of the partial eclipse will be restricted to countries such as África, Sul and Namíbia. Nessas locations, the Sol will appear with a dark “bite”, corresponding to the passage of the Lua, providing a more subtle but still impressive spectacle for those who are prepared.
The remainder of Brasil and most of América, Sul and África will not have visibility of the event. The geography of the eclipse limits its appreciation to a geographically specific audience, concentrated in the southernmost latitudes of the globe.
Key observation times
The maximum point of the eclipse, when the ring of fire will be best formed over Antártida, is expected to occur at around 12:42 pm at Tempo Universal Coordenado (UTC). The duration of the annular phase will be brief, not exceeding 2 minutes and 19 seconds at its point of greatest visibility.
For observers in América from Sul, times will vary depending on the local zone. Na Argentina and Chile, the partial eclipse will occur during the morning, requiring interested parties to prepare to follow the initial phases, peak and end of the phenomenon within a window of a few hours.
At África, due to the time difference, the partial eclipse will be visible later, in the afternoon. It is essential that observers consult local astronomical guides to find out the exact start, maximum and end times of the eclipse in their respective cities, ensuring that they do not miss a single moment.
A coincidence with the religious calendar
The occurrence of the annular solar eclipse on February 17, 2026 takes on special significance as it occurs one day before the estimated start of Ramadã, a period of great importance for the global Islamic community. The Islamic calendar is lunar, and the beginning of each month is determined by observing the waxing moon. Historicamente, celestial events such as eclipses have always aroused interest and have been interpreted in different ways by different cultures over the centuries. Embora modern astronomy explains the phenomenon as a predictable orbital alignment, the proximity to such a relevant religious date serves as a reminder of the intrinsic connection that humanity has always had with the cycles of the sky. Essa temporal coincidence does not alter the physical nature of the event, but enriches its cultural perception, uniting science and tradition in a moment of collective observation of the cosmos.
Safety Guidelines for Viewing the Eclipse
It is crucial to emphasize that observing a solar eclipse, whether partial or annular, without adequate protection can cause permanent damage to vision, including blindness. Nunca you must look directly at Sol, even if for a few seconds. Óculos of common sun do not offer the necessary protection.
For safe viewing, it is essential to use eclipse glasses with ISO 12312-2 certification or specific solar filters for telescopes and binoculars. Métodos indirect projection, such as creating a darkroom with a cardboard box, are also safe and affordable alternatives to follow the event without risk.
Preparations for observation
In regions where the eclipse will be visible, astronomy clubs, universities and planetariums are expected to organize public events for safe observation of the phenomenon. Essas initiatives are essential to educate the public about the importance of using appropriate equipment and to share knowledge about the celestial mechanics involved.
Enthusiasts who plan to travel to high visibility areas, especially Patagônia, should prepare in advance by checking weather conditions and purchasing protective filters. Eclipse photography also requires specific equipment, such as solar filters for camera lenses, to prevent damage to both the equipment and the photographer’s eyes.
Other awaited celestial events
The year 2026 holds other astronomical events of interest for sky watchers. Além of the annular eclipse in February, a total solar eclipse is predicted in August, which will be visible mainly on Europa. Chuvas meteors such as Perseidas and Geminídeas also promise their annual shows, offering multiple opportunities to appreciate the wonders of the universe throughout the year.