NOCTURNAL, NAVIGATION INSTRUMENT (EXHIBITION THE SCIENTIFIC LEGACY OF AL-ANDALUS) (LOCATION: BARCELONA MUNICIPAL MUSEUM Stock Photo - Alamy
How the Nocturnal Works: the Device that allowed Sailors to tell Time in the Dark (Video)
The Marine Curator: A Nocturnal for Nocturne
This is a typical example of a 17th-century English nocturnal, an instrument designed for telling the time at night. It is made of boxwood with a heart shape cut out of the
Nocturlabe hi-res stock photography and images - Alamy