Mercury and Jupiter visible in Brazil's western sky on June 25
On the evening of June 25, the planets Mercury and Jupiter will appear close together on the western horizon after sunset, visible to the naked eye for about 30–50 minutes. Astronomer Prof. Dr. Marcos Calil said this is one of the last comfortable opportunities this year to observe the conjunction before the planets set lower and become harder to see.
Observers are advised to find an unobstructed view toward the west, away from buildings, trees or hills, and may use 10×50 binoculars for a clearer view. The event is contrasted with Venus, which will remain bright in the sky for weeks, while Mercury and Jupiter will quickly disappear from the early‑night horizon.