Santa Maria (Portuguese pronunciation: [ˈsɐ̃tɐ mɐˈɾi.ɐ]; Potuguese and Spanish for 'Saint Mary') is an island in the eastern group of the Azores archipelago (south of the island of São Miguel) and the southernmost island in the Azores. The island is known for its white sand beaches, distinctive chimneys, and dry warm weather.
A prime meridian is an arbitrarily chosen meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. On a spheroid, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great ellipse. This divides the body (e.g. Earth) into two hemispheres: the Eastern Hemisphere and the Western Hemisphere (for an east-west notational system). For Earth's prime meridian, various conventions have been used or advocated in different regions throughout history. Earth's current international standard prime meridian is the IERS Reference Meridian. It is derived, but differs slightly, from the Greenwich Meridian, the previous standard.
Longitudes for the Earth and Moon are measured from their prime meridian (at 0°) to 180° east and west. For all other Solar System bodies, longitude is measured from 0° (their prime meridian) to 360°. West longitudes are used if the rotation of the body is prograde (or 'direct', like Earth), meaning that its direction of rotation is the same as that of its orbit. East longitudes are used if the rotation is retrograde.
The Azores, officially the Autonomous Region of the Azores, is an autonomous region of Portugal, in the Atlantic Ocean about 1,400 km (870 miles) west of mainland Portugal. Together with Madeira, it is one of the two autonomous regions of Portugal and a special territory of the European Union. It is the westernmost point and region of Portugal.
The Azores is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atlantic Ocean.There are nine major Azorean islands and an islet cluster, in three main groups. These are Flores and Corvo to the west; Graciosa, Terceira, São Jorge, Pico, and Faial in the centre; and São Miguel, Santa Maria, and the Formigas islets to the east. They extend for more than 600 km (370 mi) and lie in a northwest–southeast direction. All the islands have volcanic origins, although some, such as Santa Maria, have had no recorded activity in the time since the islands were settled several centuries ago. Mount Pico on the island of Pico is the highest point in Portugal, at 2,351 m (7,713 ft). If measured from their base at the bottom of the ocean to their peaks, the Azores are among the tallest mountains on the planet. The Azores are located at the seismically active Azores triple junction plate boundary where the North American plate, Eurasian plate and Nubian plate meet.
The Eastern Group is one of the island groups of the Azores, Portugal. It comprises the islands of São Miguel and Santa Maria and the Formigas Islets.