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Code of Conduct

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We support the principle that all people encountered in one’s professional life should be treated with respect. At no time is abusive or destructive behavior acceptable in Wolbach’s physical or online spaces or when participating in collaborative projects...

Introduction to Version Control with Git and Github

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Presented by Peter K.G. Williams Please register here! Branching. Merging. Squashing. Bisecting. Power users of the Git version control system seem to love it, but sometimes they might as well be speaking a different language. Have you been trying to...

Experence: Cambridge Explores the Universe

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The Harvard Plate Stacks is joining our colleagues at the Center for Astrophysics for Cambridge Explores the Universe! This is the annual open house for the Center for Astrophysics | Harvard & Smithsonian and is apart of the Cambridge Science Festival...

Terminology Recommendations: For Researchers, Journalists, and other Storytellers Writing About the Women Astronomical Computers

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Executive Summary This document provides guidance on how to accurately and fully describe the women who did astronomical research at the Harvard College Observatory in the late 19th and early 20th centuries. We recommend language that accounts for the...

Research Summary: Cayla Cummings

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The following information is a summary of original research conducted by EONS historical research intern Cayla Cummings. Over the course of six months (August 2021 - February 2022), Cayla applied her empirical research expertise as a historian to...

Experience: Cambridge Open Archives

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Buckle up for a fun-filled afternoon as we hit the road for the Open Archives 2024: Archives Roadtrip! This free annual event, hosted by the Cambridge Historical Commission, invites you to explore the rich history of our city with the help of archivists...

Cultural Astronomy Terminology Guide

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Cultural Terminology Terms that are culturally appropriate/neutral/non-Eurocentric The following terms listed below were compiled and investigated to intentionally and respectfully center the research conducted under EONS not only on historically excluded...

Stellar Spectra and Quantum Mechanics

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— Written by Peggy Wargelin, Wolbach Library, 2018. Much of Payne-Gaposchkin's work with stars involved studying their rainbows, which scientists call spectra. Astronomers obtained a star's spectrum by placing 1-3 prisms at the focus of a telescope...

Reference Stars and Legacy

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—written by Peggy Wargelin, Wolbach Library, 2018. In the early decades of his work, Edward Pickering had compared the brightness, or magnitude, of all stars to Polaris, the pole/north star, by using mirrors and prisms to bring it into photos of the sky...

Special Collections

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The Wolbach's Special Collections include both archival materials and other specially curated content. Please see our Collections Access Policy for comprehensive information about accessing archival materials.

Events & Programs

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The Harvard Plate Stacks hosts and participates in events and programs locally and globally. Take a look below to learn about the different ways to can connect with our collection and history.

Previous Events and Programs

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The Harvard Plate Stacks organizes various events and programs for the public throughout the year. We also like to feature events put on by other groups that highlight our collection and the history of Women Astronomical Computers. To see upcoming events...