Objects
Unknown. All-purpose equatorial sundial (fragment), first half of the 17th c.
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Unknown. All-purpose equatorial sundial (fragment), first half of the 17th c.
Number
МЛ-2812
Title
All-purpose equatorial sundial (fragment)
Date
first half of the 17th c.
Author
Unknown
Material
brass, gold plate
Dimensions
diameter 5.8
Annotation
Hour disc, rotating on two hinges connected by half-round cramp. Gnomon is missing. On one of the sides of the disc is 1/4 hour scale (О)-ХII(О) -ХII, on the other - (0)-12(0)-12. Device to determine phases of the Moon with ring-type scale 1-29 (29 1/2).
Corpus
History of Science Monuments. 14th-19th centuries. Mikhail Lomonosov Museum
Albums
Mikhail Lomonosov and Russian Science of the 18th Century