April 25th, 2026
On April 25, the Los Angeles Astronomical Society (LAAS) will celebrate its 100th anniversary with 100 telescopes on the lawn at the iconic Griffith Observatory, marking a full century of devotion to astronomy, optical engineering and craftsmanship, and public service across Southern California.
First formed in 1926 by an industrious group of amateur telescope makers, the LAAS has become one of the oldest and largest continuously operating astronomical organizations in the western United States, bringing together generations of observers in the quest bring the technically challenging world of astronomy within reach of backyard stargazers and professional astrophysicists alike.
Now 1200 members strong and more active than ever, LAAS has brought Los Angeles a full century of telescopes, observatory stewardship, public outreach and education, and enthusiasm for the beauty and understanding of the universe beyond our own skies. Through regular public hours at Garvey Ranch Observatory, weekly sidewalk astronomy sessions, monthly star parties at Griffith Observatory, special events at Mt. Wilson, and countless school and community-partnered sessions, LAAS volunteers have remained committed to opening up the specialized world of astronomy to Angelinos young and old.
To mark 100 successful years, LAAS will return to its long standing partner and home base, Griffith Observatory, with 100 telescopes spread across the front lawn overlooking the city for a Centennial Star Party. Solar and lunar daytime observation will be accompanied by hourly talks and presentations, special guests, and historic photos and artifacts on display. Into the evening, special dedications including a commemorative plaque and official proclamation will be presented, honoring the Society’s contributions to the fabric of the city and glimpsing ambitious plans for the next century.
A sunset photo opportunity will give way to evening observation of the moon, planets, stars, galaxies and nebulae through member’s telescopes and the newly-unveiled 17.5” Centennial Telescope, until the park closes at 10pm.
The event is free and open to the public but parking will be limited, so please plan accordingly.
