Telescopes of Mt Stromlo
How do they work?
On a dark night, you can see as far as the Andromeda galaxy with the naked eye, but it will appear to you as a tiny dot.
Telescopes allow us to see more detail in distant objects by acting as a bigger eye, capable of collecting more light.
The size of a telescope's lens or mirror determines the amount of light it will be able to collect. More light creates a brighter and more detailed image
Mt Stromlo's largest telescope had a primary mirror with a diameter of 74 inches (188cm).
There were two primary types of telescopes at the Mt Stromlo Observatory: