As we look up at the vast expanse of the night sky, we are reminded of the pioneers who dedicated their lives to exploring the cosmos.

One such luminary is Bart Bok (1906-1983), a Dutch-American astronomer whose profound impact on Australian astronomy continues to resonate today.

After relocating to Australia, Bok became the Director of Mount Stromlo Observatory in the ACT and played an essential role in establishing Siding Spring Observatory in Coonabarabran.

His legacy is one of advocacy for public engagement with astronomy, the fight against light pollution, and the enhancement of the Australian astronomical landscape.

Bok was instrumental in initiating a site-testing program that identified Siding Spring as an optimal location for astronomical observation, far removed from light pollution.

This vital initiative positioned Australia as a leader in southern hemisphere astronomy.

But Bok was not just a dedicated researcher; he was also a passionate advocate for outreach.

He travelled across the country, delivering captivating talks on celestial topics to both academics and the general public.

His commitment to making astronomy accessible sparked interest among people from all walks of life.

A key figure in Bart Bok's journey was his wife, Priscilla Bok, who was an accomplished astronomer in her own right.

Their partnership transcended personal and professional realms as they collaborated on research and co-authored several publications, including the popular book The Milky Way.

Priscilla’s keen insights and unwavering support were invaluable to Bart as they worked together to promote astronomy as a field accessible to all.

The Festival of the Stars, which began as a week-long event featuring "Science in the Pub" and various astronomy-related activities, has evolved significantly over the years.

In 2014, this event transformed into Starfest, marking a new chapter in the celebration of astronomy and continuing to unite enthusiasts around Siding Spring Observatory.

One of the standout features of Starfest is the Bart Bok Lecture, which serves as a testament to Bok’s enduring legacy.

This lecture promotes public interest in astronomy and has been hosted in various locations, primarily in Coonabarabran and, since around 2017, at Siding Spring Observatory.

While earlier Bok Lectures were held in Dubbo, the shift to Coonabarabran reflects the community's investment in astronomy.

Notably, the lectures in 2020 and 2021 adapted to the challenges posed by the COVID-19 pandemic, taking place virtually to maintain community engagement.

Bok's influence extended beyond his work in astronomy; he was also dedicated to keeping the local community engaged.

The residents of Coonabarabran made significant sacrifices to implement lighting restrictions aimed at preserving dark skies for better astronomical observations.

Bok worked diligently to ensure these locals were informed about developments at Siding Spring Observatory, valuing their contributions and concerns.

This commitment to community was at the heart of the annual Bart Bok Lecture and the free science events run by the local astronomical society, offered in gratitude for the town's dedication to protecting the night skies.

As Starfest continues to flourish, Bart Bok’s legacy lives on through the ongoing promotion of astronomy and education.

His passion inspires future generations to gaze at the stars and explore the wonders of the cosmos.

Bok's dedication to fostering a love for science and outreach remains vital to Australia’s rich astronomical culture, ensuring that the spirit of exploration thrives in the community.

Priscilla’s influence is still felt in the ongoing pursuit of knowledge in the field, reminding us of the power of collaboration.

This year's Starfest event is on 4 October at the Canyon Park Area of Warrumbungle National Park.

The evening features a public lecture by the new Director of Siding Spring Observatory, an Associate Professor at ANU, followed by a night sky presentation and telescope viewing.

The event celebrates the enduring legacy of Bart Bok and the vibrant world of astronomy.

By Donna The Astronomer