‘LABYRINTH’ 3D Visualisations of the Distribution of Galaxies and Large-Scale Structures Tony Fairall Software by Carl Hultquist and SameshamPerumal Depts. of Astronomy and Computer Science University of Cape Town

The data used in this presentation are galaxies with available redshifts less than 7500 km/s, as drawn from the NASA Extragalactic Database, supplemented by 6dF.

Galaxies are shown as dots. Data may be viewed from any specified position, looking in any specified direction. Major features/voids labelled.

However, distances may be colour coded for red-to blue Chromostereoscopy.

Or white-to-blue Chromostereoscopy

, With the program running, you can fly around in real time

Although this demonstration uses a sequence of still frames

From the position of our Local Group, we can look at clusters and large-scale features

The Virgo and Coma Clusters

The Fornax Cluster

The Centaurus and Hydra Clusters

Cluster ACO 3627 in the heart of the Great Attractor region

The Local Void, leading into the more distant Microscopium Void

The southern extension of the Local Supercluster towards Centaurus

The Perseus-Pisces Filament

Galaxies can also be shown as billboards

One can also fly around (as with the Swinburne visualisation)

Back to galaxies shown as points

But they can also be enclosed in ‘Tully’ bubbles to reveal large-scale structures

The transparency of the bubbles can be varied

They can even appear solid in white/blue 3D

Or red-to-blue Chromostereoscopy

100 1 Large-scale structures are incompletely mapped across the ‘Zone of Avoidance’

We shall now fly to the centre of the dataset, via the Microscopium and Local Voids

We shall fly to the centre of the data set through the Great (Coma) Wall

The Local Supercluster is best seen when only denser large scale structures are shown.