Grating, spectrograph
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1996.0245.001
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- OBJECT TYPE
- METAL/FLAT SURFACE/590 LINES PER MM/NO COATING
- DATE
- 1924
- ARTIFACT NUMBER
- 1996.0245.001
- MANUFACTURER
- Unknown
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- 19A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- SPECULUM METAL GRATING HAS LEAD BACKING/ BRASS? MOUNT & FRAME/ WOOD BOX WITH METAL HARDWARE & FELT PADDING
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 24.2 cm
- Width
- 19.3 cm
- Height
- 7.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- United States of America
- State/Province
- California
- Period
- Unknown
- Canada
-
USED AT DOMINION OBSERVATORY,CANADA'S PREDOMINANT ASTRONOMICAL OBSERVATORY WHICH OPERATED FROM 1905 TO 1970. - Function
-
DEVICE CONSISTING OF SERIES OF FINE, CLOSELY SPACED PARALLEL LINES ON METAL, USED TO DISPERSE LIGHT ACCORDING TO WAVELENGTH IN SPECTROSCOPY INSTRUMENT SUCH AS DIFFRACTION SPECTROMETER. - Technical
-
USED WITH NRC SOLAR TELESCOPE - Area Notes
-
Unknown
Details
- Markings
- HANDWRITTEN LETTERING ON PAPER LABEL ON BOX TOP READS "MT. WILSON OBSERVATORY/ GRATING NO. 19A"/ HAND INCISED LETTERING ON GRATING FRAME READS "MSC/ B1"
- Missing
- APPEARS COMPLETE
- Finish
- POLISHED GRATING/ BLACK PAINTED METAL/ DARK BROWN STAINED & VARNISHED? WOOD, WITH GREEN FELT & BRASS COLOURED SCREWS
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Grating, spectrograph, 1924, Artifact no. 1996.0245, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1996.0245.001/
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