The planetarium is built on the site of the former 19th-century Altazimuth Pavilion.
Its design uses a tilted cone shape to reflect the orientation of the Earth’s axis.
The structure is partially subterranean to minimize its visual impact on the historic landscape.
It is the only planetarium in the world located exactly on the Prime Meridian line.
The projection system uses a custom array of high-resolution projectors to create a seamless 360-degree dome experience.
The building's exterior is clad in patinated bronze, which is designed to weather and change color over time.
The Peter Harrison Planetarium is London’s only public planetarium, located within the grounds of the Royal Observatory, Greenwich. It utilizes a Digistar 7 projection system to create high-definition, immersive night sky visualizations. The facility serves as the UK's home of the Prime Meridian and incorporates advanced astrophysical data to simulate space travel. Shows range from live-narrated astronomy briefings to pre-recorded cinematic features about the solar system and beyond. The building itself is a distinct bronze-clad cone designed by Allies and Morrison, which sits adjacent to the historic 17th-century Flamsteed House. Visitors can engage with interactive exhibits in the Astronomy Centre before or after their show. It functions as a scientific research and public education hub managed by the Royal Museums Greenwich.
The exterior viewing deck overlooking the Greenwich Peninsula and Canary Wharf skyline.
Book show tickets well in advance online, as popular weekend slots frequently sell out.
Arrive early to explore the free Astronomy Centre exhibits located in the building connecting to the planetarium.
Choose a center-dome seat for the most immersive viewing experience during the show.
Do not mistake the planetarium entrance for the main Royal Observatory museum entrance; follow signage for the Astronomy Centre.
Open daily, but occasionally closed for private events or specialized technical maintenance.
