The Portuguese explorer Ferdinand Magellan (1480–1522) is known for leading the first circumnavigation around the earth. A number of things have been named in his honor, including natural phenomenona which he was the first European to observe, such as the Strait of Magellan, and the Magellanic Penguin. In other cases, modern entities (such as NASA's Magellan probe) have been named after Magellan in reference to his navigational skill and exploration of uncharted lands. Astronomy Celestial objects Magelhaens (Martian crater), named in 1976 Magelhaens (lunar crater), named in 1935 The Magellanic Clouds, two irregular dwarf galaxies visible in the southern celestial hemisphere. The diary of Antonio Pigafetta, the chronicler of Magellan's expedition, contains one of the first European descriptions of the clouds. However, referring to them as Magellanic Clouds did not become popular until much later. The first instance of the term recorded in the Oxford English Dictionary is from a 1678 volume of Philosophical Transactions. 4055 Magellan, an asteroid discovered in 1985 Instruments Magellan (spacecraft), a probe launched by NASA in 1989 to map the surface of Venus Magellan Telescopes, two large optical telescopes located at Las Campanas Observatory in Chile Giant Magellan Telescope an extremely large telescope under construction, also at Las Campanas Observatory, expected to be completed in 2025 Geography Strait of Magellan, a passage from the Atlantic to the Pacific Ocean through the southern tip of South America, discovered and crossed by Magellan in 1520. At the time, Magellan referred to it as Estrecho de Todos los Santos (Strait of All Saints), but within seven years, it was being called Estrecho de Magallanes in honor of Magellan. Magallanes Region, region of Chile Magellanica, also known as Terra Australis, a southern continent (incorrectly) hypothesized to exist, appearing on many European maps between the 15th and 18th centuries Magellan Bay on Mactan Island (the site of Magellan's death) The name 'Pacific Ocean' was coined by Magellan. Until the eighteenth century, the ocean was also often referred to as the Sea of Magellan Plants Carex magellanica, Tall Bog Sedge or Boreal Bog Sedge Sphagnum magellanicum, Magellan's Peatmoss Other Magellan's Cross, a cross planted by members of Magellan's expedition in the Philippines Magellan Shrine, a memorial to Magellan erected in 1886 on Mactan Island Magellanic penguin, a South American penguin first described by Antonio Pigafetta on Magellan's expedition The Magellan Birdwing (Troides magellanus), a large butterfly found in the Philippines Order