The 6 separately numbered diagrams included in the universe portion are designed with grids, measured in light years, to show progressively larger volumes of space entitled "Sun and near planets, " "Sun's neighbors, " "Milky Way Galaxy, " "Local group, " "Local supercluster, " and "Known universe." Three of the 8 separately numbered ill. included in the sky survey portion are ill. and maps showing the orientation and location of sky survey photos. of part of the Orion Constellation; 2 of the ill. are reproductions of sky survey photos.; and 3 of the ill. are photographic enlargements of smaller areas covered by the sky photos., including the Horsehead Nebula.

Includes text.