This is a green molded plastic box containing around 100 index cards divided by peach-coloured dividers and subdividers. The dividers are labelled: “Standards”, “Luminosity Classes Ia, Iab, Ib”, “Luminosity Classes II, III”, “Luminosity Class IV”, “Luminosity Class V”, “Peculiar Standards”, “Spectra of 73 Stars”, “Navy Requiem Stars”, “Unclassified Spectra”. Each card has information, apparently about different stars, written on it in ink.
Accession Number: 2018.ast.107
Alternative Name:
Primary Materials: Plastic, Paper
Embossed on the base of the box: “STERLING NO. 528
MADE IN U.S.A. 1964”
Written on the cards: “Standards”, “Luminosity Classes Ia, Iab, Ib”, “Luminosity Classes II, III”, “Luminosity Class IV”, “Luminosity Class V”, “Peculiar Standards”, “Spectra of 73 Stars”, “Navy Requiem Stars”, “Unclassified Spectra”.
Dimensions (cm): Length = 13.5, Width = 9, Height = 9.6
These cards are likely intended to be used as a reference.
Excellent: The box is in very good condition, with only very slight wear on the latch. There is a dirt mark on the lid. The cards are in excellent conditions and do not appear to have been frequently used.
Associated Instruments:
Manufacturer: Box: Sterling, Cards: Unknown
Date of Manufacture: 1960s
These cards may have been created for use at the Department of Astronomy and Astrophysics or at the Dunlap Observatory. If the latter, they were moved from the David Dunlap Observatory in Richmond Hill in 2009, upon the sale of the observatory. They were stored at the Department of Astronomy and Astrophysics until 2017, when it was moved to a new storage location in McLennan Physical Laboratories.
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