Octant
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2004.0164.001
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- OBJECT TYPE
- MARINE
- DATE
- 1850–1875
- ARTIFACT NUMBER
- 2004.0164.001
- MANUFACTURER
- Unknown
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 4
- AKA
- N/A
- Patents
- N/A
- General Description
- metal (including brass ?); glass lenses; wooden grip
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 25.5 cm
- Width
- 23.1 cm
- Height
- 10.9 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Marine Transportation
- Category
- Navigation instruments & equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- North America
- State/Province
- Unknown
- Period
- This instrument may have been used c. 1850s+.
- Canada
-
Owned, and presumably used, by William Bernard Ritchie (1842- c. 1929 ?), originally from Yarmouth, NS. - Function
-
Used to measure the angular distance between the moon and the sun, a star or planet. - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- Arc scale divided -0 to 120 +, labelled in increments of 10, with each increment equal to 20 minutes. Micrometer scale divided 0 to 20, labelled in increments of 5, with each increment equal to 60 minutes.
- Missing
- Appears complete.
- Finish
- All metal construction (brass ? ), save glass lenses and synthetic scales; wood (ebony ?) grip.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Octant, circa 1850–1875, Artifact no. 2004.0164, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/2004.0164.001/
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