Gran Telescopio Canarias (GTC), also known as GRANTECAN.
Gran Telescopio Canarias (GTC), also known as GRANTECAN. Credit: Daniel López/IAC.
Description

Gran Telescopio Canarias (GTC), also known as GRANTECAN, in the Roque de los Muchachos Observatory (Garafía, La Palma). Credit: Daniel López/IAC.