How did the explorers use a astrolabe?

Explorers used an astrolabe to determine their latitude by measuring the angle of celestial bodies, such as the sun or stars, above the horizon. By aligning the instrument with a known star or the sun at a specific time, they could calculate their position at sea. This tool was crucial for navigation during the Age of Exploration, allowing mariners to chart courses more accurately across vast oceans. Additionally, the astrolabe helped improve their understanding of astronomy and timekeeping.