Skywatchers in parts of Brazil are in for a treat this Sunday as the Moon passes directly in front of the red supergiant star Antares, creating a striking occultation — often referred to as a "star eclipse."
The phenomenon will be visible across the South and Southeast regions of Brazil, weather permitting. During the event, the Moon will slowly cover Antares, one of the brightest stars in the night sky, before revealing it again minutes later.
According to experts, the occultation is expected to occur in the early evening hours. Observers are advised to look toward the western sky after sunset. Binoculars or a small telescope will enhance the view, though the event may also be visible to the naked eye under clear, dark skies.
Antares, located about 550 light-years away in the constellation Scorpius, is a massive star nearing the end of its life. Its name means "rival of Mars" due to its reddish hue.
This type of lunar occultation is relatively rare for any given location. The next similar event visible from Brazil may not occur for several years.