Galaxy Groups and Clusters

In all dimensions alike, upward and downward, throughout the universe, 
there is no end.
   Lucretius  

Introduction

Award Winners

NGC 68 Group. Drawing by John R. Foster

Observing Aids to 
Complete this Program

Catalogue of Rich Clusters
of Galaxies

Hickson Compact Groups
of Galaxies

Rose City Astronomers

A Visual and CCD Observing Guide
for the Advanced Amateur Astronomer  
by  
Robert McGown and Miles Paul  

Updated 1.1.2008

Astronomical League