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<p>[QUOTE=&quot;kaparthy, post: 6645003, member: 57463&quot;]Like you, I am not an active collector of US coins. In fact, I have sort of drifted out of numismatics and into astronomy. I just placed an article with my local astronomy club magazine about a paper written by Cannon and two other women at Harvard, &quot;Stars Having Peculiar Spectra. 16 New Variable Stars.&quot;&nbsp;&nbsp; I chose the paper because if its centeniary, March 1921. Looking for a picture of Cannon, et al., that has not been widely used, I found an image of the Delaware coin on Amazon. So I went to the US Mint and bought 100 to give out at star parties when we have them again. Yesterday, I bought 100 of the Hubble Telescope dollars.</p><p><br /></p><p>Over 80 women worked at the Harvard Observatory from 1880 to 1930. Some of them, like Cannon, chose to publish and pursue careers in astronomy. Most were content to reduce the data from the photographic plates and do the calculations. </p><p>Among those who became more involved was Antonia Maury. She was later cited in other papers published in the <i>Astronomische Nachrichten</i> that laid out what we now call &quot;The Hertzsprung-Russell Diagram.&quot; </p><p><br /></p><p>I just placed a couple of classified ads in the <i>Nantucket Inquirer</i> and the <i>Vineyard Gazette</i> calling for Maria Mitchell to be placed on a new quarter in 2022-2025 Prominent Women series. Mitchell was the first person to spot a comet that had not been previously identified naked-eye. Without formal education, she became the first professor of astronomy at Vassar. She took her students to transits and eclipses in Iowa and Colorado.[/QUOTE]</p><p><br /></p>

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