SkyMapper

SkyMapper is an automated optical telescope located at Siding Spring Observatory in New South Wales, featuring a 1.35-meter primary mirror and a 0.69-meter secondary mirror in a modified Cassegrain system. The instrument uses a camera with 268 million pixels to capture wide sections of the sky with each observation.

The telescope began operations in 2008 after the destruction of the Great Melbourne Telescope during bushfires in the region. Its construction allowed the continuation of southern hemisphere astronomical research on a modern scale.

This research facility contributes to international astronomy by providing digital survey data of the southern sky to scientists worldwide.

The telescope operates at 1163 meters elevation on a mountain plateau where sky conditions favor observation. Visitors should know that this is an active research instrument not open for regular public access, used only by trained professionals.

The instrument can detect objects one million times fainter than human vision and has already catalogued nearly one billion stars and galaxies in its digital sky survey. This capability makes it a vital source for discovering celestial objects that would remain completely invisible to the naked eye or older telescopes.

Location: New South Wales

Inception: 2008

Elevation above the sea: 1,163 m

Diameter: 1.35 m

Part of: Siding Spring Observatory

Website: http://mso.anu.edu.au/skymapper

GPS coordinates: -31.27211,149.06129

Latest update: December 12, 2025 09:00