Objects
All-purpose equatorial sundial. 18th century
All-purpose equatorial sundial. 18th century
Number
МАЭ № 7733-40. МЛ-3669
Title
All-purpose equatorial sundial
Date
18th century
Author
Material
brass, glass, gold plate
Annotation
Hour ring with gnomon-needle and latitude selection scale are fixed on eight-angeled base of compass box. Hour scale III-ХII-IХ with points in 1/2 hour. Latitude selection scale 6°-82° with points in 2° and numbering in 10. 8-rhumb wind rose and line of magnetic declination are on the bottom of the compass. Dial is placed into case with printed table with list of 153 cities and thier latitudes (1-minute accuracy); on the reverse side is application instruction in German and French.
Corpus
History of Science Monuments. 14th-19th centuries. Mikhail Lomonosov Museum