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For the Amateur and the Professional
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Sirius Observatories Australia

Sirius Observatories Australia Pty Ltd recently celebrated 28 years since they commenced operation in 1986. From very humble beginnings, and with no other large observatory manufacturer in Australia to glean knowledge from, the two directors/owners - (John Hay and Joe Deregt) - proudly entered their 28th year of producing world-class observatories.

We pride ourselves on utilising as many local products and suppliers as we can in sourcing the materials we need to manufacture our product, which helps keep our local economy flowing, which in turn helps us continue to manufacture our products at the best possible price for all of our customers world-wide.

Sirius Observatories Australia has learned that success and innovation comes from overcoming difficulties as a team and with Joe at the helm, we believe that nothing can stand in our way of eventually becoming the number one manufacturer of fiberglass observatories in the world.

Why not look over some of our products in the following pages.


capture camera
Lismore Observatory

About Us

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Hong Kong Roof Mount


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“It is clear to everyone that astronomy at all events compels the soul to look upwards, and draws it from the things of this world to the other.