
Astronomical Society of the Pacific
Through its materials, resources, and programs, the ASP promotes public science interest, engagement, and literacy through the awe and wonder of astronomy and related fields. International non-profit since 1889 & the first national astronomy organization. For 125 years, the ASP, headquartered in San Francisco, has inspired professionals, researchers, educators, amateurs, and armchair astronomers to look up and wonder about our place in the universe, and about what the universe can teach and tell us.Around the world, in classrooms, museums, planetariums, national parks, state parks, nature centers, astronomy clubs, city sidewalks, online and your own backyard, the ASP fosters scientific curiosity, advances science literacy, and shares the excitement of exploration and discovery.We design and deliver innovative astronomy toolkits, programs, publications and education guides in our mission to inspire youth and adults across the economic spectrum in support of their success as science, technology and academic leaders.

Astronomical Society of the Pacific
The Astronomical Society of the Pacific (ASP) is a nonprofit American scientific and educational organization focused on promoting astronomy. Founded in San Francisco on February 7, 1889, it was established immediately following the solar eclipse of January 1, 1889. The Society's creation was motivated by a desire to foster public interest in astronomy and to support astronomical research and education on the West Coast.
Mission and Activities
The ASP's mission is to enhance public awareness and interest in astronomy while increasing scientific literacy. This is achieved through various educational and outreach programs, publications, and its website. One of its notable publications is the Publications of the Astronomical Society of the Pacific (PASP), a peer-reviewed journal that has been in circulation since 1889. PASP publishes research, review papers, and instrumentation papers in the fields of astronomy and astrophysics.
History
The ASP's establishment was spearheaded by Edward Singleton Holden, the first director of the Lick Observatory. Initially focusing on the Pacific Coast, the organization quickly expanded to become a national and international entity. Notable members and leaders have included prominent figures such as George Pardee, who later became Governor of California, and Edwin Hubble. The Society has also been influenced by notable educators and scientists like Andrew Fraknoi, a former Executive Director.
Challenges and Resilience
Despite facing significant challenges, such as the destruction of its library and offices in the 1906 San Francisco earthquake, the ASP has maintained its commitment to astronomical education and research. The organization has continued to grow and adapt over the years, reflecting its dedication to fostering a broad community of professional and amateur astronomers.
Awards and Recognition
Historically, the ASP has been associated with various awards to recognize contributions to astronomy. These include the Donohoe Comet Medal (1890-1950), awarded for comet discoveries, and the Comet Medal (1969-1974), given to outstanding non-professional astronomers for their contributions to comet studies.
Affiliations
The ASP is an affiliate of the American Association for the Advancement of Science (AAAS). It maintains strong ties with various observatories and educational institutions throughout the United States.
Impact
With members from over 40 countries, the Astronomical Society of the Pacific is the largest general astronomy education society in the world. Its diverse membership includes scientists, educators, and amateur astronomers who contribute to its mission of enhancing public understanding and appreciation of astronomy.
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From the Arctic Sky to NASA Dreams 🚀✨ In the heart of an Alaskan winter, nine incredible Eclipse Ambassadors gathered under auroras and eclipses to ignite something bigger than themselves — a shared passion for science, culture, and connection. Hosted by the UAF Geophysical Institute and supported by #NASA’s Science Activation program, this Winter Field School (created in partnership with Aurorasaurus) was more than just a school — it was a spark. For these students, science isn’t just about data.
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She returned not just as an alum, but as a beacon. On #CareerDay at her former middle school, the ASP’s Kat Troche, stood tall in the very hallways where her own dreams once began. Before 300 wide-eyed students, Kat didn’t just talk about careers — she ignited possibilities.
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