The Harvard College Observatory's Astronomical Photographic Glass Plate Collection at the Center for Astrophysics | Harvard & Smithsonian
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ALT Positive black and white image of the horsehead nebula in shadow with bright which stars around it.
ALT A negative image of the horsehead nebula with black dots of bright stars around it.
ALT A detail image of the horsehead nebula in black and white with bright white stars around it.
ALT A glass plate nebula showing three black dots with hallow rings about them created by the three bright stars of Orion’s Belt and a Smokey black cloud in the center being the Orion Nebula. Faintly you can just see the shadow of the horsehead nebula just below the left brightest star. The rest of the plate has black stars scattered like sand across the glass.
ALT A close-up view of a flaking ink drawing of an American flag with a smaller red Harvard "H" pennant flag on a blue flag pole. This is on the edge of a black-and-white negative of the night sky, with other annotations and numbers pointing at black dots of stars or galaxies.
ALT A wide view of the entire photographic glass plate negative of the night sky. The stars tiny appear black against the clear white areas of space, like grains of sand scattered on a piece of paper. Then, there are two different people who have added hundreds of identifying numbers and measures in two different hands and in blue, violet, red, and black ink.
ALT A close-up view of the detailed area now with computer-added labels in green indicating different black stars by name: NGC4715, NGC4728, NGC4745, NGC4721, NGC4702.
ALT The same close-up view with green text continues with two readable green labels, NGC4670 and NGC4673, at the base of the flag pole holding the American flag and a red Harvard "H" pennant flag.
ALT Last Weekend! In bold blue text over a red background showing a portrait of a woman, Henrietta Swan Leavitt, with her witten numbers and annotations of stars overlayed.
ALT Astronomy is for All of Us: Celebrating women astrophysicists and the history of cosmic discovery. Date: October 19, 5pm-8pm Location: Harvard College Observatory, 47 Concord Ave., Cambridge RSVP: hrvd.me/astronomy-for-all Presented by Center for Astrophysics | Harvard & Smithsonian; Mass STEM Week; Harvard in the Community
ALT A picture of the "Her Luminous Distance" exhibition, showing a photo of a starry sky being projected onto the screen. This exhibition is inside the dome of the Great Refractor, a telescope at Harvard's Astrophysics Center.
